TECHNICAL CATALOG

DIRECTIONAL CONTROL VALVES

HYDRAULIC COMPONENTS

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

CONTENT

Mechanically operatedElectrically operated Hydraulically operated

MECHANICALLY OPERATED 5

2/2 way directional valves KVC (NG 6) 5

2/2 way directional valves KVC-NV (NG 6) 7

4/2, 4/3 way directional valves KV (NG 6, 10) 9

6/2 way directional valves KV (NG 6, 10) 13

HYDRAULICALLY OPERATED (AUTOMATIC) 17

4/2 way automatic directional valves PKV (NG 6, 10)) 17

4/2 way automatic directional valves PKV-...-T (NG 6) 21

4/2, 4/3 way automatic directional valves KV (NG 6, 10) 25

ELECTRICALLY OPERATED 29

2/2 way directional valves KV (NG 6) 29

3/2 way directional valves KVC (NG 4) 33

3/2 way directional valves KVC (NG 10) 37

4/2, 4/3 way directional valve KV-5KO (NG 6) 40

4/2, 4/3 way directional valve KV-5KO (NG 10) 46

4/2, 4/3 way directional valves type KV (NS 16) 53

4/2, 4/3 way directional valve KV-3KO (NG 6) 59

4/2, 4/3 way directional proportional valve KVP (NG 6) 65

4/2, 4/3 way bankable directional valves KVM (NG 6) 69

4/2, 4/3 way bankable directional valves KVM (NG 6) 75

Inlet plate OB-KVM-6 (NG 6) 77

6/2 way directional valve KV (NG 6) 83

6/2 way directional valves KV (NG 10) 87

6/2 way directional valves KV (NG 16) 91

6/2 way directional valves KV-6K (NG 6) 95

6/2 way directional valves KVH (NG 6) 99

6/2 way directional valves KVH (NG 10) 103

6/3 Way directional valves KV (NG 4) 107

8/3 way directional valves KV (NG 6) 109

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

2/2 WAY DIRECTIONAL VALVES KVC (NG 6)

• NG 6

• Up to 250 bar [3 625 PSI]

• Up to 35 L/min [9.2 GPM]

KVC-2/2-K

Features Hydraulic symbol

Size 6

Flow rate L/min [GPM] 35 [9.2]

Operating pressure bar [PSI] 250 [3 625]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration ISO 4406-1999

19/17/14

Mass Kg [lb]

1,2 [2.6]

Seal type NBR seals for mineral oil HL, HLP, to DIN 51524

'P-Q Performance curves

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

MECHANICALLY OPERATED

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Model code

Stroke max.

2K 2/V- -K-C

Threaded connections

M12x1,5

No designation

G3/8

3/8

Special requirements to be briefly specified

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

2/2 WAY DIRECTIONAL VALVES KVC-NV (NG 6)

• NG 6

• Up to 250 bar [3 625 PSI]

• Up to 40 L/min [10.5 GPM]

KVC-2/2-NV-T

Features Hydraulic symbol

Size 6

Flow rate L/min [GPM] 40 [10.5]

Operating pressure bar [PSI] 210 [3 045]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration ISO 4406-1999

19/17/14

Mass Kg [lb]

1,2 [2.6]

Seal type NBR seals for mineral oil HL, HLP, to DIN 51524

'P-Q Performance curves

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Model code

Stroke max.

2K 2/V- -N-C

Threaded connections

M18x1,5

No designation

G3/8

3/8

Special requirements to be briefly specified

V-T

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY DIRECTIONAL VALVES KV (NG 6, 10)

• NG 6, 10

• Up to 350 bar [5 076 PSI]

• Up to 60 L/min [15.8 GPM] for NG 6

• Up to 100 L/min [26.4 GPM] for NG 10

• Connecting dimensions to ISO 4401.

KV-4/3-5KO-6-R, KV-4/3-5KO-10-R

Operation Hydraulic symbols

Directional valves type KV with direct mechanical operation by means of a lever control the

direction of the hydraulic fluid medium flow.

These directional valves consist of a housing (1), control spool (2), control mechanism (3),

and return spring (4). In 4/3-way directional valves the centre position of the control spool

is the neutral position. The change-over to one of the operating positions "a" or "b" is done

by moving the operating pin lever (5) in such a manner that its acts on the control spool (2)

so as to clear corresponding flow ways and establish relevant links between ports, A, B, P,

and T.

On ceasing to apply force to the control mechanism (3), the return spring (4) push the

control spool into the neutral position.

There are two types of operation:

1/ With control spool not held in the operating position (the control spool returns to neutral

position on ceasing to apply force to the control mechanism - type KV-../..-R).

2/ With control spool held (detent) in the operating position (the control spool remains in

the operating position on ceasing to apply force to the control mechanism lever - type

KV-../..-RA).

Spool types

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Size 610

Flow rate L/min [GPM] 60 [15.8] 100 [26.4]

Operating pressure

P, A, B bar [PSI] 350 [5 076]

T bar [PSI] 160 [2 320]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70 [-4 to 158]

Filtration NAS 1638

Mass Kg [lb]

2,05 [4.52] 5,23 [11.53]

Mounting position

Optional

Dimensions

Cartridge throttle

3. Control mechanism on side ’’a’’

4/3 valves

4/2 valves, spool types 51A

6. Fixing screws 4 pcs M5x30 to ISO 4762-10.9

(by special order).

Required tightening torque Md = 9 Nm.

7. O-ring 9.25x1.78

8. Valve cap.

9. Nameplate.

3. Control mechanism on side ’’a’’

4/3 valves

4/2 valves, spool types 51A

6. Fixing screws 4 pcs M6x60 to ISO 4762-10.9

(by special order).

Required tightening torque Md = 15 Nm.

7. O-ring 12.42x1.78

8. Valve cap.

9. Nameplate.

Required quality of the

mating surface.

Size 6

Size 10

If flow rates greater than permissible occur during change-over, a cartridge

throttle must be fitted into P-line of the directional valve.

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Size 6

Size 10

Throttle

Spool

P-A P-B A-T B-T P-T

b,D b,D c,B c,C -

c,B c,B c,A c,A d,G

b,E b,E a,B a,B -

51A

c,D b,D c,C a,B -

Flow

Diff. pressure

Control spool held

Number of spool position

5/-

Seal type

No designation

NBR seals for mineral oil HL,HLP

to DIN 51524

FPM seals for HETG, HEES, HEPG

to VDMA 24568 and ISO 15380

Special requirements to be

briefly specified

-V K O

Throttle mm [in]

No designation

Without throttle in P line

D08

Throttle Ø 0,8 [0.03 dia.]

D10

Throttle Ø 1,0 [0.04 dia.]

D12

Throttle Ø 1,2 [0.05 dia.]

----

Size

Size 6

Size 10

Spool type

51A

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KV (NG 6, 10)

• NG 6, 10

• Up to 350 bar [5 076 PSI]

• Up to 60 L/min [15.8 GPM] for NG 6

• Up to 120 L/min [31.7 GPM] for NG 10

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas).

KV-6/2-6-R..., KV-6/2-10-R...

Operation Hydraulic symbols

Directional valves type KV with direct mechanical operation by means of a lever control the

direction of the hydraulic medium flow.

They are mostly used as link between two consumers and the basic directional valve,

when we want to control both consumers alternately by means of one basic directional

valve.

There are two types of operation:

1/ With control spool not held in the operating position (the control spool returns to position

’’a’’ on ceasing to apply force to the mechanism - type KV-../..-R).

2/ With control spool held (detent) in the operating position (the control spool remains in

the operating position on ceasing to apply force to the control mechanism lever - type KV-

../..-RA).

Spool types

Mounting example

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Size 610

Flow rate L/min [GPM] 60 [15.8] 120 [31.7]

Operating pressure

With YZ bar [PSI] 350 [5 076]

Without YZ bar [PSI] 160 [2 320]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70 [-4 to 158]

Filtration NAS 1638

Mass Kg [lb]

2,4 [5.3] 5,3 [11.7]

Mounting position

Optional

Dimensions

1. Housing.

2. Control mechanism.

3. Valve cap.

4. Name plate.

Size 6

Size 10

Threaded connections M

A, B, C, D, P1, P2

Threaded connections M

A, B, C, D, P1, P2

Threaded

connection YZ

LA=39,5 [1.55]( G3/8, M18x1,5 ) / 37,5 [1.47] ( G1/2, M22x1,5 )

LC=23,5 [0.92] ( G3/8, M18x1,5 ) / 25,5 [1.00] ( G1/2, M22x1,5 )

Threaded

connection YZ

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Size 6

Size 10

6K 2

Control spool held

Seal type

NBR seals for mineral oil HL,HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

--V

Drainage

Without YZ

No designation

With YZ

-- --

Size

Size 6

Size 10

Threaded connections (M ; YZ)

Size 6

M18x1,5 ; M14x1,5

No designation

M22x1,5 ; M14x1,5

M22

G3/8 ; G1/4

G3/8

G1/2 ; G1/4

G1/2

3/4-16 UNF-2B ; 9/16-18 UNF-2B

SAE 8; SAE 6

Size 10

M22x1,5 ; M14x1,5

No designation

M27x1,5 ; M14x1,5

M27

G1/2 ; G1/4

G1/2

G3/4 ; G1/4

G3/4

7/8-14 UNF-2B ; 9/16-18 UNF-2B

SAE 10; SAE 6

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2 WAY AUTOMATIC DIRECTIONAL VALVES PKV (NG 6, 10))

• NG 6, 10

• Up to 210 bar [3 045 PSI]

• Up to 60 L /min [15.8 GPM]

• Indirect hydraulic operation.

• Connecting dimensions to ISO 4401.

• Provision of pressure setting for change - over.

• Automatic change - over from the other operating position.

PKV-6, PKV-10

Operation Hydraulic symbol

Indirectly, hydraulic - operated directional valves type PKV are used to control the

hydraulic fluid flow direction by an automatic change - over.

Mounting example

Features

Size 610

Flow rate min/max L/min [GPM] 1/25 [0.3/6.6] 1/60 [0.3/15.8]

Operating pressure

P, A, B bar [PSI] To 210 [3 045]

T bar [PSI] To 40 [580]

Min. press. req. for autom. change over bar [PSI] 50 [725]

Change over pressure bar [PSI] 50 to 210 [725 to 3 045]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70 [-4 to 158]

Filtration NAS 1638

Mass Kg [lb]

2,6 [5.7] 3,2 [7.0]

HYDRAULICALLY OPERATED (AUTOMATIC)

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

1. Emergency hand operator

2. Setting elements with protective cap

3. O-ring 9.25 X 1.78

4. Fixing screws: 4 pcs M5 x 45 to EN

ISO 4762-10.9 must be ordered

separately.

Tightening torque Md = 9Nm

5. Nameplate

Size 6

1. Emergency hand operator

2. Setting elements with protective cap

3. O-ring 12 X 2

4. Fixing screws: 4 cps M6 x 55 to EN

ISO 4762-10.9 must be ordered

separately.

Tightening torque Md = 14Nm

5. Nameplate

Size 10

Connection diagram and

connecting dimensions to

ISO 4401

Connection diagram and

connecting dimensions to

ISO 4401

Required quality of

the mating surface.

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Pressure drop

Size 6

Pressure drop

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Size 10

Size

Size 6

Size 10

VKP-

Seal type

NBR seals for mineral oil HL, HLP, to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2 WAY AUTOMATIC DIRECTIONAL VALVES PKV-...-T (NG 6)

• NG 6

• Up to 210 bar [3 045 PSI]

• Up to 30 L /min [7.9 GPM]

• Connecting dimensions to ISO 4401.

• Automatic, load - independent reversal.

• Predefined actuator direction at start - up.

PKV-6-T, PKV-6-T-G

Operation Hydraulic symbol

These valves reverse the movement of an actuator every time the flow through the valve

stops. Preferential starting is P

 B and A  T position. The spool is moved by two

springs and locked by unbalanced pressure inside valve. When no more flow is crossing

the valve, the spool changes the position inverting the direction of the actuator. These

valves are mostly used to control the movement compactors or system where it is not

possible to use electrical device.

About the spindle for the PKV-6-T-G valves:

The spindle for the PKV-6-T-G valves is used just to set the system pressure limiter. To set

the maximum pressure you have to block the self-reversing function.

Procedure to set a pressure on the system pressure limiter:

1/ Switch off the pump or reduce pressure to minimum (10 bar max).

2/ To set the system pressure limiter first block the automatic reversal of the valve.

Remove the dome nut and turn the offsetting spindle clockwise until it hits its inner end

spool. The spool is now clamped P to B and A to T.

3/ Start the pump and set the required pressure.

4/ After that stop again the pump.

5/ Turn the offsetting spindle anticlockwise until it hits its outer end stop then put the dome

nut back.

PKV-6-T

PKV-6-T-G

Mounting example

Never turn the offsetting spindle when the valve is pressurized

over 10 bar [145 PSI]. This can cause seal damage. If necessary

switch off the pump.

Offsetting

spindle

Dome nut

Seal

System

pressure

limiter

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Size

Flow rate min/max L/min [GPM] 3/30 [0.8/7.9]

Operating pressure P, A, B bar [PSI] 50 to 210 [725 to 3 045]

Max. pressure T bar [PSI] 40 [580]

Viscosity range mm

/s [SUS]

20 to 200 [92.7 to 926.8]

Oil temperature range °C [°F]

-20 to +60 [-4 to 140]

Filtration NAS 1638 8

Mass

PKV-6-T

Kg [lb]

1,3 [2.8]

PKV-6-T-G

1,4 [3.1]

Dimensions

Required quality of

the mating surface.

Connection diagram and connecting dimensions to ISO 4401.

Tightening torque

max. 2Nm

Spindle

4 x fixing screws M5x30 to DIN EN ISO 4762-10.9 must be ordered separately.

Required tightening torque Md = 9 Nm [79.65 in.lbf].

PKV-6-T PKV-6-T-G

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Pressure drop

Measured at 50°C [122°F]

and viscosity of 32 mm

/s [148 SUS].

V 6KP-T

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

Offsetting spindle

Without offsetting spindle

No designation

With offsetting spindle

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY AUTOMATIC DIRECTIONAL VALVES KV (NG 6, 10)

• NG 6, 10

• Up to 350 bar [5 076 PSI]

• Up to 80 L/min [21.1 GPM]

• Up to 130 L/min [34.3 GPM]

• Direct hydraulically operation.

• Connecting dimensions to ISO 4401.

• Threaded connections to ISO 1179.

KV-4/3-5KO-6-H, KV-4/3-5KO-10-H

Operation Hydraulic symbols

The KV-...-H is a hydraulically controlled 4/3 or 4/2 way directional control valve. The valve

is operated by the pilots ports X and Y via the connection of an external pilot pipe direct on

the valve body.

The minimum pilot pressure must be ensured for all operating conditions of the directional

valve.

Spool types

Features

Size 610

Flow rate L/min [GPM] 80 [21.1] 130 [34.3]

Operating pressure

Ports A, B, P bar [PSI] 350 [5 076]

Ports X, Y, T bar [PSI] 210 [3 045]

Pilot supply pressure min. bar [PSI] 10 [145]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70 [-4 to 158]

Filtration NAS 1638

Mass Kg [lb]

1,4 [3.1] 4,0 [8.8]

Mounting position

Optional

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Cartridge throttle

1. Threaded connection X (Y) - G1/4

2. Fixing screws 4 pcs M5x30 to ISO

4762-10.9 (by special order) Required

tightening torque Md = 9Nm

3. O-ring 9.25 x 1.78

4. Nameplate.

Size 6 Size 10

1. Threaded connection X (Y) - G1/4

2. Fixing screws 4 pcs M6x60 to ISO

4762-10.9 (by special order) Required

tightening torque Md = 15Nm

3. O-ring 12.42 x 1.78

4. Nameplate.

Required quality of the

mating surface.

If flow rates greater than permissible occur during change-over, a cartridge

throttle must be fitted into P-line of the directional valve.

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Size 6

Size 10

Spool

P-A P-B A-T B-T P-T

8866-

5441

5599-

51A

5511-

Spool

P-A P-B A-T B-T P-T

1155-

3278

1122-

51A

1133-

Flow

Diff. pressure

Spool types

51A

51B

Seal type

No designation

NBR seals for mineral oil

HL,HLP to DIN 51524

FPM seals for HETG, HEES,

HEPG to VDMA 24568 and

ISO 15380

Special requirements to be

briefly specified

KV- -5- -HO

Size

Size 6

Size 10

- -

Number of control spool position

Two positions

Three positions

Hydraulically operated

Throttle mm [in]

No designation

Without throttle in P line

D08

Throttle Ø 0,8 [0.03 dia.]

D10

Throttle Ø 1,0 [0.04 dia.]

D12

Throttle Ø 1,2 [0.05 dia.]

(NS10)

(NS 6)

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

2/2 WAY DIRECTIONAL VALVES KV (NG 6)

• NG 6

• Up to 210 bar [3045 PSI]

• Up to 30 L/min [7.9 GPM]

• Direct in-line mounting.

• Threaded connections to ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Hermetically sealing at closed flow path.

• No STICK-SLIP effect even after a prolonged dwell time under pressure.

• Plug-in solenoid connector to ISO 4400.

• Protection of solenoid IP65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-2/2-6-S-..

Operation Hydraulic symbols

Directly-operated directional seat valves KV are used for

the control of direction of hydraulic fluid.

KV-2/2-6-S-A-...

In the start control position a, the return spring (4) holds the ball (2) in its open position,

thus freeing the flow path between ports A and B. The change-over into the control position

b is accomplished by energizing the solenoid (3), whereby the ball (2) is pushed against

the seat (1). The hydraulic fluid on port A is under pressure.

KV-2/2-6-S-B-...

The hydraulic fluid on port A in the start control position a is under pressure. The return

spring (4) pushes the ball (2) against its seat (1). The change-over to the control position b

is performed by energizing the solenoid (3), thus freeing the flow path between ports

A and B.

The change-over can also be done manually by pressing the emergency hand

operator (5).

Mounting example

ELECTRICALLY OPERATED

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Features

Hydraulic

Size 6

Flow rate L/min [GPM] 30 [7,93]

Operating pressure bar [PSI] 210 [3045,79]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Filtration NAS 1638 8

Mass Kg [lb]

2,2 [4,85]

Electrical

Supply voltage V

12, 24, 48, 110, 230 DC or AC

Power W

29*

Intermittence continious

Ambient temperature °C [°F] To +50 [To +122]

Coil temperature °C [°F] To +180 [To +356]

Duty cycle min

-1

250

* 12V supply voltage - 36W

Dimensions

KV-2/2-6-S-A-

KV-2/2-6-S-B-

3. Solenoid ’’b’’ MR-045.

5. Emergency hand operator.

6. Nameplate.

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Pressure drop

Symbol B

Symbol A

Manual override option

Emergency manual override

No designation

Manual override with rubber cover

- Alternating voltage solenoids are fitted with a bridge rectifier.

- With solenoids of over 48 V an earthing clamp to ISO 4400

must be connected.

To fulfil EMC (89/336/EEC) a capacitor must be built in

Supply voltage

Direct voltage Alternating voltage

12V

12DC 12AC

24V

No designation 24AC

48V

48DC 48AC

110V

110DC 110AC

220V

220DC -

230V

- 230AC*

2 2VKS

/--

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP junior timer without connector

Overvoltage protection

No designation

Without overvoltage protection

With overvoltage protection

Threaded connections

No designation

G 3/8

SAE 8

3/4-16 UNF-2B

Spool type

Seal type

No designation

NBR seals for mineral oil HL,

HLP, to DIN 51524

FPM seals for HETG, HEES,

HEPG to VDMA 24568 and

ISO 15380

Special requirements to be

briefly specified

Measured at 50°C [122°F] and viscosity of

32 mm

/s [148 SUS].

Valid for flow direction A to B.

32 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 33

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

3/2 WAY DIRECTIONAL VALVES KVC (NG 4)

• NG 4

• Up to 160 bar [2 320 PSI]

• Up to 16 L/min [4.2 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Optimized flow paths for low losses of pressure.

• Wet pin solenoid with interchangeable coil.

• Manual emergency control.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KVC2-3/2-47B, KVC-3/2-47B

Features Hydraulic symbol

Single: KVC-3/2-4-47B

Double: KVC2-3/2-4-47B

Hydraulic

Size 4

Flow rate L/min [GPM] 16 [4.2]

Operating pressure bar [PSI] 160 [2 320]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration ISO 4406-1999

19/17/14

Mass

KVC-3/2-4

Kg [lb]

1,6 [3.5]

KVC2-3/2-4

3,5 [7.7]

Electrical

Supply voltage V

12, 24

Power W

29*

Switch-on time** ms

50 to 80

Switch-off time** ms

30 to 55

Switching frequency 1/h

15 000

Ambient temperature °C [°F] to 50 [122]

Coil temperature °C [°F] to 180 [356]

Duty cycle Continious

* 12 V supply voltage - 36 W.

** The switching-on and off times apply to 24 V DC solenoids.

34 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

'P-Q Performance curves

Dimensions

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Flow

Diff. pressure

KVC-3/2-4

KVC2-3/2-4

KVC-3/2-4-47B

Emergency hand operator

KVC2-3/2-4-47B

Emergency hand operator

25/11/11 35

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Model code

2/ 7

4-B-

Number of control spool position

Two positions

Working ports

Three working ports

Spool type

Supply voltage (direct voltage)

12V

12DC

24V

24DC

Hydraulic symbol

Simple

No designation

Double

Seal type

NBR seals for mineral oil HL,HLP to

DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to

VDMA 24568 and ISO 15380

Special requirements to be briefly specified

Manual override option

Emergency manual override

No designation

Manual override with rubber cover

36 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 37

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

3/2 WAY DIRECTIONAL VALVES KVC (NG 10)

• NG 10

• Up to 350 bar [5 076 PSI]

• Up to 100 L/min [26.4 GPM]

• Direct in-line mounting.

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP65 to EN 50529 / IEC 60529.

KVC-3/2-10

Operation Hydraulic symbol

Directional valves type KVC-3/2-10 with direct solenoid operation are used to control the

direction of hydraulic fluid flow.

Type KVC-3/2-10 is a reduced version of type KV-6/2. It is used for alternate control of two

one-pipe working units (e.g. Plunger) with common, main directional valve.

It is also very proper as bypass valve.

The change-over can also be done manually by pressing the emergency hand operator.

Mounting example

38 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate

Without drainage

L/min [GPM]

60 [15.8]

With drainage 100 [26.4]

Operating pressure

Without drainage

bar [PSI]

250 [3 625]

With drainage 350 [5 076]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass

Without drainage

Kg [lb]

5,6 [12.34]

With drainage

7,1 [15.65]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

Switching frequency 1/h 15000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

3. Solenoid "b" MR-060

5. Emergency hand operator

6. Plug-in connector "b" -black

7. Fixing screws:

-without YZ: 2 x M6x60 to ISO 4762-10.9

-with YZ: - 2 x M6x40 to ISO 4762-10.9

8. Nameplate

9. Valve cap

Threaded connection

(with hand operator)

Dimensions

Without YZ With YZ

L 200 [7.87]

209 [8.22]

85 [3.34] 94 [3.70]

29,5 [1.16] 31,5 [1.24]

55,5 [2.18] 62,5 [2.46]

42,5 [1.67] 47 [1.85]

19,5 [0.76] 18 [0.71]

46 [1.81] 40 [1.57]

- 79,5 [3.13]

104 [4.09] 105 [4.13]

67 [2.63] 74 [2.91]

73 [2.87] 90 [3.54]

46 [1.81] 66 [2.60]

-33 [1.30]

50,5 [1.98] 31 [1.22]

25/11/11 39

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Pressure drop

Without YZ

With YZ

Hand operator

Without hand operator

No designation

With hand operator

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

3VK10

Overvoltage

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections A,B,P ; YZ

No designation

M18x1,5 ; -

M22

M22x1,5 ; -

M20

M20x1,5 ; -

3/8

G3/8 ; -

1/2

G1/2 ; -

3/4

G3/4 ; -

3/4

G3/4 ; G1/4

SAE 12; SAE 6

1 1/16-12 UNF-2B ; 9/16-18 UNF-2B

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

No designation

NBR seals for mineral oil HL,

HLP to DIN 51524

FPM seals for HETG, HEES,

HEPG to VDMA 24568 and

ISO 15380

Special requirements to be

briefly specified

Drainage

No designation

Without YZ

With YZ

41B

Spool type

41B

40 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

4/2, 4/3 WAY DIRECTIONAL VALVE KV-5KO (NG 6)

• NG 6

• Up to 350 bar [5 076 PSI]

• Up to 75 L/min [19.8 GPM]

• Connection diagram and connecting dimensions to ISO 4401.

• Plug-in connector for solenoids to ISO 4400.

• 5-chamber model with good spool guidance.

• Optimized flow paths for low losses of pressure.

• Adjustment of the switching time.

• Wet pin solenoid with interchangeable coil.

• Manual emergency control.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-4/3-5KO-6

Operation Hydraulic symbols

Directional valves type KV with direct solenoid operation control the direction of the hydraulic

medium flow.

These directional valves consist of a housing (1), a control spool (3), and one solenoid (2) with

two return springs (4) in 4/2-way directional valves, and two solenoids (2) with two return

springs (4) in 4/3-way directional valves. In 4/3-way directional valves the centre position of the

control spool is the neutral position. The change-over to the operating position (a) and (b) is

done by energizing the solenoids (2) "a" and "b" respectively, whereby the solenoid plunger

acts on the control spool (3) via the operating pin (5), thus clearing the corresponding flow ways

and establishing relevant links between ports A, B, P, and T.

When the solenoid (2) is de-energized, the control spool (3) is returned to its neutral position by

the return spring (4). The change-over can be done manually by pressing the emergency hand

operator (6).

KV-4/2-5KO-6-81

Directional valve with two operating position, two solenoids without springs allow the control

spool to be held in the operating position (detent). The control spool remains in the operation

position also when the solenoids are de-energized.

Spool types

25/11/11 41

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Features

Hydraulic

Size 6

Flow rate L/min [GPM] see 'P-Q curves

Operating pressure

Ports A, B, P bar [PSI] 350 [5 076]

Port T bar [PSI] 250 [3 625]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration NAS 1638

Mass

4/2

Kg [lb]

1,9 [4.2]

4/3

2,7 [5.9]

Mounting position

Optional

Electrical

Supply voltage

Direct

12, 24, 48

Alternating

110, 230

Power W

29*

Switch-on time** ms

50 to 80

Switch-off time** ms

30 to 55

Switching frequency 1/h

15 000

Ambient temperature °C [°F] to 50 [122]

Coil temperature °C [°F] to 180 [356]

Duty cycle Continious

* 12 V supply voltage - 36 W.

** The switching-on and off times apply to 24 V DC solenoids.

'P-Q Performance curves 'P-Q Operating limits

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Flow path

Spool

P-A P-B A-T B-T P-T

8866-

5441

877-

5599-

5511-

51A, 51B

5511-

41A, 41B

77---

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Spool

curve

51A, 51B

41A, 41B

The operating limits of the valve are

determined at a voltage 10% below

the nominal rating. The curves refer

to application with symetrical flow

throw the valve (P-A and B-T). In

the case of asymetric flow (e.g. one

part not used) reduced values may

result.

Note: For valves with adjustment of

the switching time reduced values

of the operating limits may result.

42 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Cartridge throttle

Installation

The directional control valve must be installed horizontally (Nameplate on top). If this is not the case, the valve must be removed for venting.

Unscrew the vent screw. Move the spool alternately to the switching positions a and b until no more bubbles appear at the screw hole. The oil

must be visible at the screw hole. Missing oil should be refielled with an oilcan, drop by drop. Screw in the vent screw.

A constant or short time static oil pressure of at least > 4 bar must prevail at connection T of the directional control valve to maintain the oil

pressure in the spring chambers. If this is not the case, the preloaded oil volume of the restricted valve would leak into the T channel through the

leakage section of the control spool shoulders.

The dampening constancy also depends on the constancy of the oil viscosity.

For this reason the dampening effect should always be adjusted with the system at operational temperature.

Max. torque 30 Nm

Required quality of the

mating surface.

KV-4/2-5KO-6

Max. torque 30 Nm

KV-4/3-5KO-6

KV-4/2-5KO-6-81

With hand operation - add

letter G before spool type in

ordering code.

Connection diagram and

connecting dimensions to

ISO 4401.

Max. torque

If flow rates greater than permissible occur during change-over, a

cartridge throttle must be fitted into P-line of the directional valve.

25/11/11 43

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Function drawing

1. Solenoid "a" - MR-045

2. Solenoid "b" - MR-045

3. Fixing screws 4 pcs M5 x 30 to ISO 4762

-10.9 must be ordered separately.

Required tightening torque Md = 9 Nm

4. Plug-in connector "a" - grey

5. Plug-in connector "b" - black

6. Emergency hand operator

7. O-ring 9,25 x 1,78

8. Valve cap

9. Nameplate

10. Constant action restrictor

KV-4/3-5KO-6

(KV-4/2-5KO-6)

KV-4/2-5KO-6-81

KV-4/3-5KO-6-2

KV-4/2-5KO-6-UD

Vent screw

44 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Model code

Spool types

11A 1B81

22A 2B

33A 3B

66A 6B

51A 51B

41A 41B

Port T in the valves with spool type 41A and 41B to be used as lekage line.

Valves with adjustment of the switching time - a constant or short - time static

oil pressure of at least  4 bar [58 PSI] must prevail at connection T of the

directional control valve to maintain the pressure in the spring chambers.

/ KV- -5-O-6

Number of control spool positions

Two positions

Three positions

Working ports

Three working ports

Four working ports

Manual override option

Emergency manual override

No designation

Manual override with rubber cover

25/11/11 45

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Seal type

NBR seals for mineral oil HL,HLP to

DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to

VDMA 24568 and ISO 15380

Special requirements to be briefly specified

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP junior timer without connector

- -

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Throttle mm [in]

Without throttle in P line

No designation

Throttle Ø 0,8 [0.03 dia.]

D08

Throttle Ø 1,0 [0.04 dia.]

D10

Throttle Ø 1,2 [0.05 dia.]

D12

Constant action restrictor

Without restrictor

No designation

With restrictor Ø 0,35 [0.01 dia.]

- Alternating voltage solenoids are fitted with a bridge rectifier.

- With solenoids of over 48 V an earthing clamp to ISO 4400

must be connected.

*To fulfil EMC (89/336/EEC) a capacitor must be built in.

Supply voltage

Direct voltage Alternating voltage

12V

12DC 12AC

24V

No designation 24AC

48V

48DC 48AC

110V

110DC 110AC

230V

230DC 230AC*

46 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

4/2, 4/3 WAY DIRECTIONAL VALVE KV-5KO (NG 10)

• NG 10

• Up to 350 bar [5 076 PSI].

• Up to 120 L/min [31.7 GPM].

• Connection diagram and connecting dimensions to ISO 4401.

• Plug-in connector for solenoids to ISO 4400.

• 5-chamber model with good spool guidance.

• Optimized flow paths for low losses of pressure.

• Adjustment of the switching time.

• Wet pin solenoid with interchangeable coil.

• Manual emergency control.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

KV-4/3-5KO-10

Operation Hydraulic symbol

Directional valves type KV with direct solenoid operation control the direction of the hydraulic

medium flow.

These directional valves consist of a housing (1), a control spool (3), and one solenoid (2) with

two return springs (4) in 4/2-way directional valves, and two solenoids (2) with two return

springs (4) in 4/3-way directional valves. In 4/3-way directional valves the centre position of the

control spool is the neutral position. The change-over to the operating position (a) and (b) is

done by energizing the solenoids (2) "a" and "b" respectively, whereby the solenoid plunger

acts on the control spool (3) via the operating pin (5), thus clearing the corresponding flow

ways and establishing relevant links between ports A, B, P, and T.

When the solenoid (2) is de-energized, the control spool (3) is returned to its neutral position

by the return spring (4). The change-over can be done manually by pressing the emergency

hand operator (6).

KV-4/2-5KO-10-81

Directional valve with two operating position, two solenoids without springs allows the control

spool to be held in the operating position (detent). The control spool remains in the operation

position also when the solenoids are de-energised.

Spool types

25/11/11 47

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Features

Hydraulic

Size 10

Flow rate L/min [GPM] see 'P-Q curves

Operating pressure

Ports A, B, P bar [PSI] 350 [5 076]

Port T bar [PSI] 250 [3 625]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration NAS 1638

Mass 4/2

Kg [lb]

6,5 [14.3]

4/3

7,3 [16.1]

Mounting position

Optional

Electrical

Supply voltage

Direct

12, 24, 48

Alternating

110, 230

Power W

Switch-on time* ms

70 to 95

Switch-off time* ms

40 to 80

Switching frequency 1/h

15 000

Ambient temperature °C [°F] to 50 [122]

Coil temperature °C [°F] to 180 [356]

Duty cycle Continious

* The switching-on and off times apply to 24 V DC solenoids.

'P-Q Performance curves 'P-Q Operating limits

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Flow path

Spool

P-A P-B A-T B-T

1155-

3278

634-

1122-

6622-

1133-

51A, 51B

1133-

41A, 41B

66---

Flow

Pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Spool

curve

51A, 51B

41A, 41B

The operating limits of the valve are

determined at a voltage 10% below

the nominal rating. The curves refer

to application with symetrical flow

throw the valve (P-A and B-T). In

the case of asymetric flow (e.g. one

part not used) reduced values may

result.

Note: For valves with adjustment of

the switching time reduced values

of the operating limits may result.

48 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Cartridge throttle

Installation

The directional control valve must be installed horizontally (Nameplate on top). If this is not the case, the valve must be removed for venting.

Unscrew the vent screw. Move the spool alternately to the switching positions a and b until no more bubbles appear at the screw hole. The oil

must be visible at the screw hole. Missing oil should be refielled with an oilcan, drop by drop. Screw in the vent screw.

A constant or short time static oil pressure of at least > 4 bar must prevail at connection T of the directional control valve to maintain the oil

pressure in the spring chambers. If this is not the case, the preloaded oil volume of the restricted valve would leak into the T channel through the

leakage section of the control spool shoulders.

The dampening constancy also depends on the constancy of the oil viscosity.

For this reason the dampening effect should always be adjusted with the system at operational temperature.

Max. torque 50 Nm

Required quality of the

mating surface.

KV-4/2-5KO-10

Max. torque 50 Nm

KV-4/3-5KO-10

KV-4/2-5KO-10-81

With hand operation - add letter G

before spool type in ordering code.

Connection diagram and connecting

dimensions to ISO 4401.

Max. torque 6 Nm

If flow rates greater than permissible occur during change-over, a

cartridge throttle must be fitted into P-line of the directional valve.

25/11/11 49

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Function drawing

1. Solenoid "a" - MR-060

2. Solenoid "b" - MR-060

3. Fixing screws 4 pcs M6 x 60 to ISO

4762 -10.9 must be ordered

separately. Required tightening torque

Md = 15 Nm

KV-4/3-5KO-10

(KV-4/2-5KO-10)

KV-4/2-5KO-10-81

KV-4/3-5KO-10-2-UD

(KV-4/2-5KO-10-2-UD)

4. Plug-in connector "a" - grey

5. Plug-in connector "b" - black

6. Emergency hand operator

7. O-ring 12,42 x 1,87

8. Valve cap

9. Nameplate

10. Constant action restrictor

Vent screw

50 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Model code

K / KV- -5-O-10

Number of control spool position

Two positions

Three positions

Working ports

Three working ports

Four working ports

Manual override option

Emergency manual override

No designation

Manual override with rubber cover

Spool types

11A 1B81

22A 2B

33A 3B

66A 6B

51A 51B

41A 41B

Port T in the valves with spool type 41A and 41B to be used as lekage line.

Valves with adjustment of the switching time - a constant or short - time static

oil pressure of at least > 4 bar [58 PSI] must prevail at connection T of the

directional control valve to maintain the pressure in the spring chambers.

25/11/11 51

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Seal type

NBR seals for mineral oil HL,HLP to

DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to

VDMA 24568 and ISO 15380

Special requirements to be briefly specified

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP junior timer without connector

- -

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Throttle mm [in]

Without throttle in P line

No designation

Throttle Ø 0,8 [0.03 dia.]

D08

Throttle Ø 1,0 [0.04 dia.]

D10

Throttle Ø 1,2 [0.05 dia.]

D12

Constant action restrictor

Without restrictor

No designation

With restrictor Ø 0,35 [0.01 dia.]

- Alternating voltage solenoids are fitted with a bridge rectifier.

- With solenoids of over 48 V an earthing clamp to ISO 4400

must be connected.

*To fulfil EMC (89/336/EEC) a capacitor must be built in.

Supply voltage

Direct voltage Alternating voltage

12V

12DC 12AC

24V

No designation 24AC

48V

48DC 48AC

110V

110DC 110AC

230V

230DC 230AC*

52 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 53

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY DIRECTIONAL VALVES TYPE KV (NS 16)

• NG 16

• To 350 bar [5 076 PSI]

• To 300 L/min [79 GPM]

• Indirect, solenoid, and mechanical (by lever) operation.

• Connection diagram and connecting dimensions to ISO 4401.

• Plug-in solenoid connector to ISO 4400.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-4/3-16-

Operation Hydraulic symbols

Directional valves type KV with indirect, solenoid-hydraulic operation control the hydraulic

fluid flow direction.

These valves consist of the main valve (1), a control spool (2), two return springs (3) in

4/3-way valves and none in 4/2-way valves, a double throttle check/valve (4) and a

pilot valve (5).

The pilot valve (5) is connected with the pressure chambers (8) via the pilot line (7).

Feeding of the pilot valve oil is either or external (via the port "x"). Change-over of the

control spool to one of the operating position is activated by the introduction of oil via the

pilot valve (5) into one of the pressure chambers (8). A pressure rise in chambers provokes

the movement of the control spool (2). Suitable links between ports A,B,P,T according to

spool types are established as set forth in the table.

When the solenoid of the pilot valve (5) are de-energized a link between the pressure

chamber (8) and the return line "y" for the pilot oil discharge is established. A pressure

drop in the chamber actuates the main valve return spring (3) which automatically return

the control spool to the neutral position.

Dischange of the return pilot oil from the pressure chambers is either internal or external

(via the port "y").

Manual change-over of the main valve is also possible by pressing the emergency hand

operator (9).

Indirect directional valves can also be provided with a manual pilot valve. These valves are

manually operated by moving the operating lever.

Spool types

54 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Flow rate l/min [GPM] 300 [79.2]

Operating pressure bar[PSI]

Ports A, B, P 350 [5076.3]

Port T 250 [3625.9]

Pilot oil pressure (x-external) bar [PSI] 50-250 [725.2-3625.9]

Pilot oil pressure (x-internal)

Pre-load valve is fitted into P-port of the main valve

Without Pre-load valve in the P-port of the main valve

In valve types with internal pilot oil supply (x) the

spool types 2, 3, and 4 are possible only when the oil

flow in the direction from P towards T achieves the

flow rate

Q = 150 L/min [39.6 GPM], with the control spool in

the centre position.

Oil temperature range °C [°F] -20 to +70 [-4 to 158]

Viscosity range mm

/S 15 to 380

Required pilot oil volume cm

[cu.in] 2 positions valve

7,8 [0.47]

3 positions valve

3,9 [0.24]

Mass Kg [lb]

Main valve

8 [17.6]

4/3 pilot valve

2,5 [5.5]

4/2 pilot valve

2,2 [4.8]

Throttle/check valve

1,45 [3.2]

Pressure reducing

valve

1,70 [3.7]

Mounting position Optional, horizontal for spool types 4/2

Switch-on time

Solenoid change-over from the operating to the centre position

(ms)

3 positions valve

2 positions valve

Switch-off time

Solenoid change-over from the operating to the centre position

(ms)

3 positions valve

2 positions valve

Filtration NAS 1638 8

Ambient temperature range °C [°F] +50 [122]

Coil temperature range °C [°F] +180 [356]

Power W 29 (12V supply voltage - 36W)

Voltage V 12, 24, 48, 110, 230

The switch-on and switch-off times apply to 24 V DC solenoids.

'P-Q Performance curves

Flow

Spool type P-A P-B A-T B-T P-T

1, R1, 51B, 51A, F51, R51 e e e f -

2, R2 a b c e f

3, R3 b b c d -

4, R4 b c c e -

5, R5 b c c e -

6, R6 b c d e -

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

See Model Code for

spool type choice.

Throttle

Diff. pressure

25/11/11 55

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Cartridge throttle Pre-load valve

Pressure reducing valve Throttle check valve

The pressure reducing valve used when the pilot oil "X" pressure

exceeds the permissible limit p = 250 bar [3 626 PSI].

The throttle check valve used for setting the supply flow rate of the

pilot oil to the pressure chambers. Simultaneously, the change-

over speed of the main control spool is adjusted. In this way a

smoother change-over, without hydraulic shocks is provided.

Dimensions

Pilot valve

Main valve

If the pilot oil supply rate (x) is greater than

permissible a cartridge throttle shall be

fitted into the P line of the directional valve.

In valves with a low pressure bypass

and internal pilot oil feed, minimum

pilot pressure is obtained by installing

a pre-load valve in the P-port of the

main valve.

The cracking pressure is approx.

4,5 to 6 bar [65 to 87 PSI].

1. Main valve

4. Throttle / check valve

5.1 4/3 pilot valve

5.2 4/2 pilot valve

10.

11.

Pressure reducing valve

14.1 Solenoid "a" MR-045

14.2 Solenoid "b" MR-045

15. Nameplate

16. Fixing screws: 4 pcs M10x60 to

ISO 4762 -10.9 tightening torque Md =

64 Nm

17. Fixing screws: 2 pcs M6x55 to

ISO 4762 -10.9 tightening torque Md =

14 Nm

18. O-ring ports P,A,B,T 22,22 x 2,62

19. O-ring ports X,Y, 10x2

20.1 Plug-in connector "a"

greyVerbindungsstecker „a“, grau

20.2 Plug-in connector "b" black

21. Connecting dimmensions to ISO 4401

Required quality of

the mating surface.

Hand operator

56 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Model code

Number of control spool positions

Two positions

Three positions

Manual override option

Emergency manual override

No designation

Manual override with rubber

cover

Pilot oil supply and discharge

Three positions Two positions

For supply and discharge with spool type 2 and 3, refer to the features

table.

Internal x, y

Internal y, external x

Internal x, external y

External x, y

Spool types

R51

F51

51A

51B

25/11/11 57

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Seal type

NBR seals for mineral oil HL,HLP to DIN 51524

No designationNo

designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

Throttle mm [in]

Without throttle in P line

No designationNo

designation

Throttle Ø 0,8 [0.03 dia]

D08

Throttle Ø 1,0 [0.04 dia]

D10

Throttle Ø 1,2 [0.05 dia]

D12

Overvoltage

Without overvoltage protection

No designationNo

designation

With overvoltage protection

Pilot oil control with a double throttle valve

Without a double throttle valve

No designationNo

designation

With a double throttle valve

Pilot oil control with pressure reducing

valve

Without pressure reducing valve

No designationNo

designation

With pressure reducing valve

Pre-load valve

Without pre-load valve

No designationNo des-

ignation

With pre-load valve

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP junior timer without connector

Supply voltage

Direct voltage Alternating voltage

12V

12DC 12AC

24V

No designation

24AC

48V

48DC 48AC

110V

110DC 110AC

230V

230DC 230AC*

- Alternating voltage solenoids are fitted with a bridge rectifier.

- With solenoids of over 48 V an earthing clamp ( )

to DIN EN 175301-8003 must be connected.

* To fulfil EMC (89/336/EEC) a capacitor must be built in.

58 25/11/11

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25/11/11 59

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY DIRECTIONAL VALVE KV-3KO (NG 6)

• NG 6

• Up to 250 bar [5 625 PSI]

• Up to 40 L/min [10.6 GPM]

• Connection diagram and connecting dimensions to ISO 4401.

• Different types of plug-in connectors.

• 3-chamber model.

• Optimized flow paths for low losses of pressure.

• Wet pin solenoid with interchangeable coil.

• Manual emergency control.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-4/3-3KO-6

Operation Hydraulic symbols

Directional valves type KV-3KO with direct solenoid operation control the direction of the

hydraulic medium flow.

These directional valves consist of a housing (1), a control spool (3), and one solenoid (2)

with two return springs (4) in 4/2-way directional valves, and two solenoids (2) with two

return springs (4) in 4/3-way directional valves. In 4/3-way directional valves the centre

position of the control spool is the neutral position. The change-over to the operating

position (a) and (b) is done by energizing the solenoids (2) "a" and "b" respectively,

whereby the solenoid plunger acts on the control spool (3) via the operating pin (5), thus

clearing the corresponding flow ways and establishing relevant links between ports A, B, P,

and T.

When the solenoid (2) is de-energized, the control spool (3) is returned to its neutral

position by the return spring (4). The change-over can be done manually by pressing the

emergency hand operator (6).

Spool types

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Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size 6

Flow rate L/min [GPM] see 'P-Q curves

Operating pressure

Ports A, B, P bar [PSI]

250 [3 625]

Port T bar [PSI]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration NAS 1638

Mass 4/2

Kg [lb]

1,3 [2.9]

4/3

1,8 [3.9]

Mounting position

Optional

Electrical

Supply voltage

Direct

12, 24, 48

Alternating

110, 230

Power W

Switch-on time* ms

50 to 80

Switch-off time* ms

30 to 55

Switching frequency 1/h

15 000

Ambient temperature °C [°F] to 50 [122]

Coil temperature °C [°F] to 180 [356]

Duty cycle Continious

* The switching-on and off times apply to 24 V DC solenoids.

'P-Q Performance curves 'P-Q Operating limits

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Flow path

Spool

P-A P-B A-T B-T P-T

1122 -

3335

144 -

1111 -

51A, 51B

1133 -

41A, 41B

33- - -

Spool

curve

51A, 51B

41A, 41B

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Flow

Pressure

25/11/11 61

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Dimensions

Cartridge throttle

Required quality of the

mating surface.

KV-4/2-3KO-6

Max. torque 50 Ncm

KV-4/3-3KO-6

Option: Plug-in connector to ISO 4400

Connection diagram and connecting

dimensions to ISO 4401.

Max. torque 30 Nm

Option: AMP JUNIOR connector

4 x Fixing screws M5x50 to ISO 4762- 10.9 must be ordered separately.

Required tightening torque Md= 7Nm.

Name plate

Max. torque 6 Nm

If flow rates greater than permissible occur during change-over, a

cartridge throttle must be fitted into P-line of the directional valve.

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Model code

Spool types

11A1B

22A2B

33A3B

66A6B

51A 51B

41A 41B

Port T in the valves with spool type 41A and 41B to be used as lekage line when

working pressure is higher than 210 bar [3 045 PSI].

/ KV- -3-O-6

Number of control spool positions

Two positions

Three positions

Working ports

Three working ports

Four working ports

Manual override option

Emergency manual override

No designation

Manual override with rubber cover

25/11/11 63

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Seal type

NBR seals for mineral oil HL,HLP to

DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to

VDMA 24568 and ISO 15380

Special requirements to be briefly specified

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP junior timer without connector

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Throttle mm [in]

Without throttle in P line

No designation

Throttle Ø 0,8 [0.03 dia.]

D08

Throttle Ø 1,0 [0.04 dia.]

D10

Throttle Ø 1,2 [0.05 dia.]

D12

- Alternating voltage solenoids are fitted with a bridge rectifier.

- With solenoids of over 48 V an earthing clamp to ISO 4400

must be connected.

Supply voltage

Direct voltage Alternating voltage

12V

12DC 12AC

24V

No designation 24AC

48V

48DC 48AC

110V

110DC 110AC

230V

230DC 230AC

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25/11/11 65

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY DIRECTIONAL PROPORTIONAL VALVE KVP (NG 6)

• NG 6

• Up to 350 bar [5 076 PSI]

• Up to 30 L/min [7.9 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Connection diagram and connection dimensions to ISO 4401.

• 5 chamber models with good spool guidance.

• Optional control electronics: Amplifier R59209NP221.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KVP-4/3-5KO-6

Operation Hydraulic symbols

The KVP directional control valve is a proportional valve providing variable flow rates. This

valve is used with control electronics. Typical applications are soft switching via adjustable

ramps for the reduction of hydraulic and mechanical shocks, and electrically adjustable

flow rates - speeds for automating machine functions.

This directional valves consist of a housing (1), a control spool (2), one or two proportional

solenoids (3) and two return springs (4). The change-over can be done manually by

pressing the emergency hand operator (5).

Spool type

66 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 10, 20, 30 [2.6 - 5.2 - 7.9]

Operating pressure

A, B, P

bar [PSI]

350 [5 076]

T 250 [3 625]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass

4/2

Kg [lb]

1,65 [3.63]

4/3

2,2 [4.85]

Filtration NAS 1638

Proportional

Hysteresis

5% of max. flow rate

Nominal current

12DC

24DC

Electrical

Supply voltage V

12, 24 DC

Power W

Ambiant temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

Connection diagram and connecting

dimensions to ISO 4401

Max. torque 50 Nm

Max. torque 6 Nm

Fixing screws 4 pcs M5 x 30 to EN ISO 4762 - 10.9 must be

ordered separately / Max. torque Md = 9Nm

Required quality of the

mating surface

25/11/11 67

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Input signal curves / Flow rate Power limits transmitted

Model code

Flow

Measured at 40°C [104°F] and viscosity of 32 mm

/s.

Measured at 40°C [104°F] and viscosity of 32 mm

/s.

'P=5 bar [72.5PSI] P-A or P-B

Flow

Number of spool positions

Two positions

Three positions

Connector type

No designation

EN 175301-803 without signal lamp

EN 175301-803 with signal lamp

EN 175301-803 without connector

P 4VK5

Regulated flow rate

('P=5 bar [72.1 PSI] / P-A or P-B)

0-10 L/min [0-2.6 GPM]

0-20 L/min [0-5.2 GPM]

0-30 L/min [0-7.9 GPM]

K 6

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

No designation

NBR seals for mineral oil HL, HLP, to

DIN 51524

FPM seals for HETG, HEES, HEPG

to VDMA 24568 and ISO 15380

Special requirements to be

briefly specified

Spool types

68 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 69

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY BANKABLE DIRECTIONAL VALVES KVM (NG 6)

• NG 6

• Up to 350 bar [5 076 PSI]

• Up to 40 L/min [10.6 GPM]

• Parallel or series connection.

• Plug-in connection for solenoids to ISO 4400.

• 5-chamber model with good spool guidance.

• Wet pin solenoid with interchangeable coil.

• Manual emergency control.

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

KVM-P-4/3-6-1-1-12DC-3/8

Hydraulic symbol

Spool types - Parallel connection (KVM-P)

Spool types - Series connection (KVM-S)

Features

Hydraulic

KVM-P KVM-S

Size

Flow rate L/min [GPM] 40 [10.6] 30 [7.9]

Operating pressure

A, B, P

bar [PSI]

350 [4 568] 250 [3 626]

T 250 [3 626]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mass

4/2

Kg [lb]

1,85 [4.08]

4/3

2,4 [5.29]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

(12 V DC supply voltage)

Switching frequency 1/h 15 000

Ambiant temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

70 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

1. Solenoid ’’a’’ / MR-045-O

2. Solenoid ’’b’’ / MR-045-O

3. Plug-in connector «a» -grey

4. Plug-in connector «b» -black

5. Emergency hand operator

6. Hand operator with rubber (G)

7. O-ring 9,25 x 1,78

8. Valve cap (KVM-...-4/2)

9. Nameplate

10. Threaded connection A-M torque = max. 100 Nm

11. Threaded connection B-M torque = max. 100 Nm

Connection dimensions for KVM-6

Required quality of the mating surface

(hand operator - G)

25/11/11 71

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Diff. pressure

Pressure

Flow

Spool type

Curve

3,6 3

The operating limits of the valve shall be determined at a voltage 10% bellow

the nominal rating. The curves refer to application with symmetrical flow

throw the valve (P-A and B-T). In the case of asymmetrical flow (e.g. one part

not used) reduced values may result.

Parallel connection -KVM-P (N1 to N8) Series connection -KVM-S (P to T).

Series connection -KVM-S (P to A(B)).

Flow

Diff. pressure

Diff. ressure

Flow

72 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Model code

VK6

- 4 -

Hand operator

Emergency hand operation

No designation

Hand operator with rubber

Type of connection

Series connection

Parallel connection

Number of control spool positions

Two positions

Three positions

Spool type

Parallel connection

(KVM-P)

51A

51B

Series connection

(KVM-S)

25/11/11 73

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Threaded connections

M18 x1,5

No designation

G3/8

3/8

9/16-18 UNF-2B

SAE 6

Special requirements to be briefly specified

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA 24568

and ISO 15380

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

74 25/11/11

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25/11/11 75

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

4/2, 4/3 WAY BANKABLE DIRECTIONAL VALVES KVM (NG 6)

• NG 6

• Up to 350 bar [4 568 PSI]

• Up to 40 L/min [10 GPM]

• Threaded connection to ISO 9974 (Metric), ISO1179 (BSPP/Gas).

• Series or parallel connections.

• Inlet plate possbility with pressure relief valve, pump unloading valve or flow control valve.

• Possibility to use standard components for vertical stacking.

KVM-6-...-VV-KV-N4

Basic concept

Type of connection

1. Basic (directional control) valves KVM-6

2. Inlet plate OB-KVM-6

3. End plate ZB-KVM-6

4. Fixing elements for mounting SET-KVM-6

5. Threaded connection P

6. Threaded connection T

7. Threaded connection A

8. Threaded connection B

9. Threaded connection MP (closed)

Parallel (KVM-P) Series (KVM-S)

76 25/11/11

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25/11/11 77

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

INLET PLATE OB-KVM-6 (NG 6)

• NG 6

• Up to 350 Bar [5076 PSI]

• Up to 40 l/min [10,6 GPM]

• Provide pressure relief valve.

• Provide pump unloading valve.

• Provide flow control valve.

• Threaded connections to ISO 9974 (Metric),

ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

OB-KVM-6-VV20-KVO OB-KVM-6-VV20-TVTPG

Hydraulic symbol

Features

OB-KVM-6 OB-KVM-6-VV OB-KVM-VV-KV OB-KVM-VV-TVTP

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Filtration NAS 1638 8

Mass kg [lbs] 1,25 [2.76] 1,35 [2.98]

2,2 [4.85] 4,5 [9.92]

Flow rate l/min [GPM] / 40 [10.6]

Press Setting Bar [PSI]

50-210 [13-55]

100-350 [26-92]

Adjustments /

Innensechskantschraube

Max. pressure Bar [PSI] //

350 [5 076] 210 [3 045]

Supply voltage V DC / / 12,24 /

Power W/ / 17 /

Flow - inlet l/min [GPM] / / / max. 50 [max. 13,21]

Flow - priority way l/min [GPM] / / / 0 - 25 [0 - 6.6]

Flow - bypass l/min [GPM] / / / max. 40 [max. 10,6]

OB-KVM-6 OB-KVM-6-VV20-KV1

OB-KVM-6-VV35

OB-KVM-6-VV20-TVTP

By-pass way

78 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

1. Pressure relief valve

2. Pump unloading valve

3. Hand operator with knob

4. Threaded connection MP - G1/4 (closed)

6. Connection dimensions for KVM-6

7. Fixing hole (M8 X 12) for mounting assembly

OB-KVM-6

OB-KVM-6-VV

OB-KVM-6-VV...-KV...

25/11/11 79

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Dimensions

OB-KVM-6-VV...-TVTP...

1. Pressure relief valve

2. Flow control valve - rotary knob -TVTPB

3. Flow control valve - proportional solenoid - TVTP

4. Flow control valve - proportional solenoid with hand

operator - TVTPG

5. Threaded connection MP - G1/4 (closed)

6. Nameplate

7. Bankable directional valves KVM-6 Priority flow

8. Bankable directional valves KVM-6 Bypass flow

9. Fixing hole (M8 x 12) for mounting assembly

10. Connection dimensions for KVM-6 (see page 12.11.3)

KVM-6-Ventile - Bypass-Strom

KVM-6-Ventile - Hauptstrom

80 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

'P-Q Performance curves

Measured at 50°C [122°F] and viscosity of 28 mm

/s [148 SUS].

Pressure drop

.OB-KVM-6-VV (pressure relief valve- flow P to T.

OB-KVM-6-KV (pump unloading valve- flow P to T.

Flow Flow

25/11/11 81

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

Model code

Pump unloading valve

Without pump unloading valve

designation

Pump unloading valve - normally closed

KV0

Pump unloading valve - with hand operator - knob

KVG0

Pump unloading valve - normally open

KV1

Pump unloading valve - with hand operator - knob

KVG1

Normally open Normally closed

KOM

- V

Threaded connections

M18 x 1,5 (ISO 9974)

No designation

M22 x 1,5 (ISO 9974)

M22

G1/2 (ISO 1179)

1/2

G3/8 (ISO 1179)

3/8

3/4-16 UNF-2B

SAE 8

Pressure relief valve

Without pressure relief valve

No designation

Pressure relief valve range 50-210 bar

[725-3045 PSI]

VV20

Pressure relief valve range 100-350 bar

[1450-5076 PSI]

VV35

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA 24568

and ISO 15380

Special requirements to be briefly specified

Flow control valve

Without flow control valve

No designation

Flow control valve - rotary knob - TVTP-25-B

TVTPB

Flow control valve - prop. solenoid - TVTP-25-P

TVTP

Flow control valve - with hand operator - knob

TVTPG

Plug-in connector

Without signal lamp

No designation

With signal lampMit

Kontrolllampe

supply voltage

Direct voltage 24 V

No designation

Direct voltage 12 V

82 25/11/11

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25/11/11 83

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVE KV (NG 6)

• NG 6

• Up to 350 bar [5 076 PSI]

• Up to 50 L/min [13.2 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-6/2-6-S50

Operation Hydraulic symbol

Directional valves type KV with direct solenoid operation control the direction of the

hydraulic medium flow. They are mostly used as link between two consumers and the

basic directional valve, when we want to control both consumers alternately by means of

one basic directional valve.

The KV type directional valves consist of a housing (1), a control spool (2), a solenoid (3)

and a return spring (5).

Change-over to the operating position is done by energizing the solenoid (3), whereby the

solenoid plunger acts on the control spool (2) via the operating pin (4), thus clearing the

corresponding flow ways and establishing respective links between the ports

P1, A, B and P2.

When the solenoid (3) is de-energized, the control spool (2) is returned to its neutral

position by the return spring (5), thus establishing again the links between ports P1, C, D

and P2.

The change-over can also be done manually by pressing the emergency hand

operator (6).

Spool type

Mounting example

84 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 50 [13.2]

Operating pressure

With YZ

bar [PSI]

350 [5 076]

Without YZ 250 [3 625]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

2,5 [5.51]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

29*

Switching frequency 1/h

15 000

Ambiant temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

* 12 V supply voltage - 36 W.

Dimensions

Threaded connections M

Max. torque 6 Nm

With hand operation

Threaded connections YZ

3. Solenoid ’’a’’ MR-045

6. Emergency hand operator

7. Plug in connector «a»grey

8. Nameplate

9. Valve cap

25/11/11 85

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'p-Q Performance curve

Model code

Flow

Measured at 40°C [104°F] and viscosity of 32 mm

/s [148 SUS].

Diff. pressure

Drainage

No designation

Without YZ

With YZ

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

6VK6

Overvoltage protection

Without protection

No designation

With protection

Seal type

No designation

NBR seals for mineral oil HL,

HLP to DIN 51524

FPM seals for HETG, HEES,

HEPG to VDMA 24568 and

ISO 15380

Special requirements to

be briefly specified

Spool type

No designation

5 0

Overlap

No designation

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Hand operator

Without hand operator

No designation

With hand operator

Threaded connections M ; YZ

No designation

M18x1,5 ; M14x1,5

M22

M22x1,5 ; M14x1,5)

3/8

G3/8 ; G1/4)

1/2

G1/2 ; G1/4)

SAE 8; SAE 6

3/4-16 UNF-2B ; 9/16-18 UNF-2B

86 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 87

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KV (NG 10)

• NG 10

• Up to 350 bar [5 076 PSI]

• Up to 120 L/min [31.7 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP65 to EN 50529 / IEC 60529.

KV-6/2-10

Operation Hydraulic symbol

Directional valves type KV with direct solenoid operation control the direction of the

hydraulic medium flow. They are mostly used as link between two consumers and the

basic directional valve, when we want to control both consumers alternately by means of

one basic directional valve.

The KV type directional valves consist of a housing (1), a control spool (2), a solenoid (3)

and a return spring (5).

Change-over to the operating position is done by energizing the solenoid (3), whereby the

solenoid plunger acts on the control spool (2) via the operating pin (4), thus clearing the

corresponding flow ways and establishing respective links between the ports P1, A,B

and P2.

When the solenoid (3) is de-energized, the control spool (2) is returned to its neutral

position by the return spring (5), thus establishing again the links between ports P1, C,D

and P2.

The change-over can also be done manually by pressing the emergency hand

operator (6).

Mounting example

88 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 120 [31.7]

Operating pressure

With YZ

bar [PSI]

350 [5 076]

Without YZ 250 [3 625]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

5,5 [12.12]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

Switching frequency 1/h 15000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

3. Solenoid ’’a’’ MR-060

6. Emergency hand operator

7. Plug-in connector «a» - grey

8. Nameplate

9. Valve cap

Threaded connections M

Threaded connection YZ

(with hand operator)

Max. torque = 6Nm

25/11/11 89

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Diff. pressure

Hand operator

Without hand operator

No designation

With hand operator

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

6VK10

Overvoltage

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections M ; YZ

M22x1,5 ; M14x1,5

M22

M27x2 ; M14x1,5

M27

G1/2 ; G1/4

1/2

G3/4 ; G1/4

3/4

7/8-14 UNF-2B ; 9/16-18 UNF-2B

SAE 10; SAE 6

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

Drainage

Without YZ

No designation

With YZ

90 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 91

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KV (NG 16)

• NG 16

• Up to 350 bar [5 076 PSI]

• Up to 250 L/min [66.04 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Flange ports to ISO 6162-2.

• Fulfil EMC (89 / 336 / EEC).

• Protection of solenoid IP 65 to EN 60529 / IEC 60529.

KV-6/2-16-XN

Hydraulic symbol

Features

Hydraulic

Size

Flow rate L/min [GPM] 250 [31.7]

Operating pressure

bar [PSI] 15 to 350 [217.56 to 5076.32]

(in port L or in return way) bar [PSI] 250 [3625.94]

Oil temperature range °C [°F] -20 to +70 [-4 to 158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

22 [48.50]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power

(12 V DC supply voltage)

Switching frequency 1/h 15 000

Ambiant temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

KV-6/2-16-...-XN KV-6/2-16-...-N KV-6/2-16-...-Z

92 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

1. Emergency hand operator

2. Solenoid ’’a’’ MR-045

3. Plug-in connector «a» - grey

4. Nameplate

SAE-flange connection - High pressure series

Threaded connections L

KV-6/2-16-...-SAE...

KV-6/2-16-...-G1/G1/4

Threaded connections M

A, B, C, D, P1, P2

1. Emergency hand operator

2. Solenoid ’’a’’ MR-045

3. Plug-in connector «a» - grey

4. Nameplate

Threaded connections L

Size

SAE 3/4 SAE 1

a 50.8 [2] 57.2 [2.25]

23.8 [0.94] 27.8 [1.09]

M10 M12

G1/4

25/11/11 93

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Pressure drop

Flow

Pilot oil supply and discharge

Internal x, y

Internal, external y (port L)

external, external

Hand operation

without hand operator

No designation

with hand operator

VK2/- 6

supply voltage

direct voltage 24 V

No designation

direct voltage 12 V

12 DC

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

G1/2 (YZ=G1/4) without connector

AMP junior timer without connector

Threaded connections M ; L

G1 ; G1/4

G1/G1/4

1 5/16-12 UNF-2B ; 9/16-18 UNF-2B

SAE 16; SAE 6

SAE-Flange connections 3/4 - high pressure series

SAE3/4

SAE-Flange connections 1 - high pressure series

SAE1

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

---

Special requirements to be briefly specified

- -

Overvoltage protection

without overvoltage protection

No designation

with overvoltage protection

94 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 95

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KV-6K (NG 6)

• NG 6

• Up to 250 bar [3625 PSI]

• Up to 50 L/min [13.2 GPM]

• Direct in-line mounting.

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP65 to EN 60529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-6K/2-6

Operation Hydraulic symbol

Directional valves type KV-6K/2-6 with direct solenoid operation control the direction of the

hydraulic medium flow.

They are mostly used as link between two consumers and the basic directional valve,

when we want to control both consumers alternately by means of one basic directional

valve.

The KV-6K/2-6 type directional valves consist of a housing (1), a control spool (2), and a

solenoid (3) with return spring (5).

Change-over to the operating position is done by energizing the solenoid (3), whereby the

solenoid plunger acts on the control spool (2) via the operating pin (4), thus clearing the

corresponding flow ways and establishing respective links between the ports P1, A,B and

P2.

When the solenoid (3) is de-energized, the control spool (2) is returned to its neutral

position by the return spring (5), thus establishing again the links between ports P1,

C,Dand P2.

The change-over can also be done manually by pressing the emergency hand

operator (6).

Spool type

Mounting example

96 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 50 [13.2]

Operating pressure bar [PSI] 250 [3 625]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

2,5 [5.51]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

(12 V DC supply voltage) W

Switching frequency 1/h 15000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

3. Solenoid ’’b’’ MR-045

6. Emergency hand operator

7. Plug in connector «b» black

8. Nameplate

9. Valve cap

Threaded connection

25/11/11 97

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Pressure drop

Hand operator

Without hand operator

No designation

With hand operator

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

6 KVK6

Overvoltage

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections

M18x1,5

No designation

G 3/8

G3/8

9/16-18 UNF-2B

SAE 6

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be

briefly specified

98 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

25/11/11 99

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KVH (NG 6)

• NG 6

• Up to 315 bar [4 568 PSI]

• Up to 50 L/min [13.2 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP65 to EN 50529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

• For stacking (1-5 units).

KVH-6/2-6-S50-N3

Operation Hydraulic symbol

Directional valves type KVH with direct solenoid operation control the direction of the

hydraulic medium flow. They are mostly used as link between two consumers and the

basic directional valve, when we want to control both consumers alternately by means of

one basic directional valve.

The KVH type directional valves consist of a housing (1), a control spool (2), and a

solenoid (3) with return spring (5).

Change-over to the operating position is done by energizing the solenoid (3), whereby the

solenoid plunger acts on the control spool (2) via the operating pin (4), thus clearing the

corresponding flow ways and establishing respective links between the ports P1, A, B and

P2.

When the solenoid (3) is de-energized, the control spool (2) is returned to its neutral

position by the return spring (5), thus establishing again the links between ports

P1, C, D and P2.

The change-over can also be done manually by pressing the emergency hand

operator (6).

Mounting example

100 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 50 [13.21]

Operating pressure

With YZ

bar [PSI]

315 [4 568]

Without YZ 250 [551]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

2,7 [5.95] (N1)

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

(12 V DC supply voltage)

Switching frequency 1/h 15 000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

3. Solenoid ’’a’’ MR-045

6. Emergency hand operator

7. Plug-in connector «a» - grey

8. Nameplate

9. O-Ring ; M18x1,5 / G3/8 = Ø21x2

M22x1,5 / G1/2 = Ø26x2

10. O-Ring ; M14x1,5 / G1/4 = Ø17x2

11. Valve cap

Threaded connections M

Threaded connections YZ

Screws

LA= 39,5 [1.55] (G3/8, M18x1,5)

37,5 [1.47] (G1/2, M22x1,5)

25/11/11 101

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Diff. pressure

symbol

No designation

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

6VK6/- 2

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections M ; YZ

No designation

M18x1,5 ; M14x1,5

M22

M22x1,5 ; M14x1,5

3/8

G3/8 ; G1/4

1/2

G1/2 ; G1/4

SAE 8; SAE 6

3/4-16 UNF-2b ; 9/16-18 UNF-2B

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

No designation

NBR seals for mineral oil

HL, HLP to DIN 51524

FPM seals for HETG,

HEES, HEPG to VDMA

24568 and ISO 15380

-- -

Special

requirements to be

briefly specified

--- - S 5- -

Hand operator

without hand operator

No designation

With hand operator

Overlap

No designation

Drainage

No designation

Without YZ

With YZ

Number of units

One

Two

Three

Four

Five

H 0 -

102 25/11/11

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25/11/11 103

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/2 WAY DIRECTIONAL VALVES KVH (NG 10)

• NG 10

• Up to 315 bar [5 076 PSI]

• Up to 120 L/min [31.70 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP 65 to EN 50529 / IEC 60529.

KVH-6/2-10-N2

Operation Hydraulic symbol

Directional valves type KVH with direct solenoid operation control the direction of the

hydraulic medium flow. They are mostly used as link between two consumers and the

basic directional valve, when we want to control both consumers alternately by means of

one basic directional valve.

The KVH type directional valves consist of a housing (1), a control spool (2), and a

solenoid (3) with return spring (5).

Change-over to the operating position is done by energizing the solenoid (3), whereby the

solenoid plunger acts on the control spool (2) via the operating pin (4), thus clearing the

corresponding flow ways and establishing respective links between the ports P1, A, B and

P2.

When the solenoid (3) is de-energized, the control spool (2) is returned to its neutral

position by the return spring (5), thus establishing again the links between ports

P1, C, D and P2.

The change-over can also be done manually by pressing the emergency hand

operator (6).

Mounting example

104 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 120 [31.70]

Operating pressure

With YZ

bar [PSI]

315 [4 568]

Without YZ 250 [551]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

5,5 [12.12]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

Switching frequency 1/h 15 000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

1. Solenoid ’’a’’ MR-060

2. Plug-in connector «a» - grey

3. Emergency hand operator

4. Nameplate

5. O-Ring ; 26x2 = KVH-6/2-10-G1/2 (M22)

31x2 = KVH-6/2-10-G3/4 (M27)

6. O-Ring 17x2

7. Screws M10 - 10.9 (z=4)

8. Valve cap

122 (with hand operation)

Threaded connections M

Threaded connections YZ

Mmax. = 20Nm

25/11/11 105

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Pressure drop

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

6VK10/- 2

Overvoltage protection

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections M ; YZ

M22x1,5 ; M14x1,5

M22

M27x2 ; M14x1,5

M27

G1/2 ; G1/4

G1/2

G3/4 ; G1/4

G3/4

7/8-14 UNF-2B ; 9/16-18 UNF-2B

SAE 10; SAE 6

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

NBR seals for mineral oil HL, HLP to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA 24568

and ISO 15380

Special

requirements to be

briefly specified

S 4- -

Hand operator

without hand operator

No designation

With hand operator

Drainage

Without YZ

No designation

With YZ

Number of units

One

Two

Three

Four

Five

H 0 -

106 25/11/11

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25/11/11 107

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

6/3 WAY DIRECTIONAL VALVES KV (NG 4)

• NG 4

• Up to 210 bar [3 045 PSI]

• Up to 7 L/min [1.8 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas).

• Manual emergency control.

• Fulfil EMC (89/336/EEC).

KV-6K/3-4

Features Hydraulic symbol

Hydraulic

Size 4

Flow rate L/min [GPM] 6 [1.6]

Operating pressure bar [PSI] 210 [3 045]

Viscosity range mm

/s [SUS]

15 to 380 [69.5 to 1 760]

Oil temperature range °C [°F]

-20 to +70[-4 to 158]

Filtration ISO 4406-1999

19/17/14

Mass Kg [lb]

1,6 [3.5]

Seal type NBR seals for mineral oil HL, HLP, to DIN 51524

Electrical

Supply voltage V

12, 24

Power W

Switching frequency 1/h

15 000

Ambient temperature °C [°F] to 50 [122]

Coil temperature °C [°F] to 180 [356]

Duty cycle Continious

'P-Q Performance curves

Flow

Diff. pressure

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

108 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Dimensions

Model code

Emergency hand operator

Number of control spool position

Three positions

Working ports

Six working ports

Supply voltage (direct voltage)

12V

12DC

24V

No designation

Special requirements to be briefly specified

25/11/11 109

POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

8/3 WAY DIRECTIONAL VALVES KV (NG 6)

• NG 6

• Up to 250 bar [5 076 PSI]

• Up to 50 L/min [31.7 GPM]

• Plug-in connector for solenoids to ISO 4400.

• Threaded connections to ISO 9974 (Metric), ISO 1179 (BSPP/Gas), ISO 11926 (UNF).

• Protection of solenoid IP65 to EN 50529 / IEC 60529.

• Fulfil EMC (89/336/EEC).

KV-8/3-6

Operation Hydraulic symbol

Directional valves type KV with direct solenoid operation control the direction of the

hydraulic medium flow. They are mostly used as link between three consumers and the

basic directional valve, when we wish to control both consumers alternately by means of

one basic directional valve.

The KV type directional valves consist of a housing (1), a control spool (2,3), two solenoids

(4,5) with return spring (6,7). Change-over to one of the operating positions is done by

combination of operation of solenoids (4,5), whereby the solenoid plunger acts on the

control spool (2,3) via the operating pin (8), thus clearing the corresponding flow ways and

establishing respective links between the ports P1, A, B, C, D, E, F and P2, as seen forth in

the schematic diagram of a mounting example.

When the solenoid (4,5) is de-energized, the control spool (2.3) is returned to their neutral

position by the return spring (6,7).

The change-over can also be done manually by pressing the emergency hand

operator (9).

Mounting example

110 25/11/11

Directional control valves - Hydraulic components POCLAIN HYDRAULICS

Features

Hydraulic

Size

Flow rate L/min [GPM] 50 [13.21]

Operating pressure bar [PSI] 250 [3 625]

Oil temperature range °C [°F] -20 to +70 [-4 to +158]

Viscosity range mm

/s [SUS] 15 to 380 [3.24 to 82]

Mounting position Optional

Mass Kg [lb]

3,8 [8.38]

Filtration NAS 1638

Electrical

Supply voltage V

12, 24 DC

Power W

(12 V DC supply voltage)

Switching frequency 1/h 15 000

Ambient temperature °C [°F] to +50 [to +122]

Coil temperature °C [°F] to +180 [to +356]

Duty cycle Continious

Dimensions

4.5. Solenoid ’’b’’ MR-045

9. Emergency hand operator

10. Plug-in connector «b» - black

11. Nameplate

12. Valve cap

Threaded connection

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POCLAIN HYDRAULICS Hydraulic components - Directional control valves

Mechanically operatedElectrically operated Hydraulically operated

'P-Q Performance curves

Model code

Flow

Measured at 50°C [122°F] and viscosity of 32 mm

/s [148 SUS].

Pressure drop

Hand operator

Emergency manual override

No designation

Manual override with rubber cover

Connector type

EN 175301-803 without signal lamp

No designation

EN 175301-803 with signal lamp

EN 175301-803 without connector

AMP Junior timer without connector

8VK6/- 3

Overvoltage

Without overvoltage protection

No designation

With overvoltage protection

Threaded connections

M18x1,5

No designation

M22x1,5

M22

M20x1,5

M20

G3/8

G1/2

3/4-16 UNF-2B

SAE 8

Supply voltage

Direct voltage 24V

No designation

Direct voltage 12V

12 DC

Seal type

NBR seals for mineral oil HL, HLP, to DIN 51524

No designation

FPM seals for HETG, HEES, HEPG to VDMA

24568 and ISO 15380

Special requirements to be briefly specified

25/11/11

More information on

Poclain Hydraulics reserves the right to make any modifications it deems necessary to the products described in this document

without prior notification.The information contained in this document must be confirmed by Poclain Hydraulics before any order is

submitted.

Illustrations are not binding.

The Poclain Hydraulics brand is the property of Poclain Hydraulics S.A.

hirteen subsidiaries and a worldwide network

of more than 150 distributors and partners …

A35758S