Options:

only for DH-04 and DK-14, see section

/A = actuator device mounted on side of port B

only for DP:

/H = adjustable chokes for controlling the main spool

shifting time (meter-out to the pilot chambers of

the main valve)

/H9= adjustable chokes for controlling the main spool

shifting time (meter-in to the pilot chambers of

the main valve)

/R =

with check valve on port P (not available for DP-1*)

/S =

main spool stroke adjustment (not available for DP-1*)

Valve configuration, see section

0 = free, without springs

1 = spring centered, without detent

3 = spring offset external position

5 = 2 external positions, with detent (only for DH and DK)

7 = center and external positions

Hydraulic operated directional valves

ISO 4401 size 06, 10, 16, 25 and 32

Hydraulic operated directional valves are

spool type, three or four way, two or three

position, designed to operate in oil hydrau-

lic systems.

Available with single or double hydraulic

actuator.

Valve sizes and max flow:

DH-0 = size 06, flow up to 50 l/min

DK-1 = size 10, flow up to 160 l/min

DP-1 = size 10, flow up to 160 l/min

DP-2 = size 16, flow up to 300 l/min

DP-4 = size 25, flow up to 700 l/min

DP-6 = size 32, flow up to 1000 l/min

Max pressure:

350 bar for DH-0, DP-1, DP-2, DP-4, DP-6

315 bar for DK-1

Type of actuator:

4 = single actuator

5 = double actuator

Spool type, see section

1 MODEL CODE

E225

DH-0511

DP-4411/H

Directional control valve,

size:

DH-0 = 06

DK-1 = 10

DP-1 = 10

DP-2 = 16

DP-4 = 25

DP-6 = 32

Series number

 Main body

 Spool

 Manual override

 Hydraulic actuator

 Adjustable chokes (option /H)

HYDRAULIC CHARACTERISTICS

see note (1)

3 (min) 5 (suggested)

(1) The max pressure on port T has to be not over 50% of pilot pressure

Valve model

Max recommended flow [l/min]

Max pressure on port P, A, B [bar]

Max pressure on port T (also X, Y for DP) [bar]

Minimum pilot pressure [bar]

Max recommended pressure on piloting line[bar]

350

250

DH-0

350

DK-1

160

315

DP-1

160

DP-2

300

DP-4

700

DP-6

1000

DH-0

4 3 A//** *1

Seals material,

see section

- =

NBR

PE = FKM

BT = HNBR (only

for DP)

Table E225-3/E

MAIN CHARACTERISTICS, SEALS AND FLUIDS - for other fluids not included in below table, consult our technical office

CONFIGURATIONS and SPOOLS valves type DH-*, DK-*

47/A

43/A

41/A

4567

0/2

1/2

2/2

01 02

Configurations Spools Configurations Spools

only for DH*

NOTES:

- For DP*-1 are available only spools: 0, 0/2, 1, 1/2, 3, 4, 5, 6, 7

- For DP*-6 are available only spools: 0, 1, 1/2, 2, 3, 4, 5, 6, 7, 8,

CONFIGURATIONS and SPOOLS valves type DP-*

4567

0/2

1/2

2/2

01 02

Configurations Spools Configurations Spools

Special shaped spools

- spools type 0 and 3 are also available as 0/1 and 3/1 with restricted oil passages in central position, from user ports to tank.

spools type 1, 4 and 5 are also available as 1/1, 4/8 and 5/1 are properly shaped to reduce water-hammer shocks during the switching.

NOTES

- spools type 0 and 3 are also available as 0/1 and 3/1 with restricted oil passages in central position, from user ports to tank.

spools type 1, 4

and

5 are also available as 1/1, 4/8

(only for DH), and

5/1. They are properly shaped to reduce water-hammer shocks during the swiching.

- spools type 1, 1/2, 3, 8 are available as 1P, 1/2P, 3P, 8P (only for DH-0) to limit valve internal leakages.

Mineral oils

Hydraulic fluid

NBR, FKM, HNBR

FKM

NBR, HNBR

DIN 51524

ISO 12922

HL, HLP, HLPD, HVLP, HVLPD

HFDU, HFDR

HFC

Suitable seals type

Classification Ref. Standard

Flame resistant without water

Flame resistant with water

NBR seals (standard) = -20°C ÷ +80°C, with HFC hydraulic fluids = -20°C ÷ +50°C

Seals, recommended fluid temperature FKM seals (/PE option) = -20°C ÷ +80°C

HNBR seals (/BT option) = -40°C ÷ +60°C, with HFC hydraulic fluids = -40°C ÷ +50°C

Recommended viscosity 15÷100 mm

/s - max allowed range 2,8 ÷ 500 mm

Ambient temperature range standard execution = -30°C ÷ +70°C; /PE option = -20°C ÷ +70°C; /BT option = -40°C ÷ +70°C

Subplate surface finishing roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)

MTTFd values according to EN ISO 13849 150 years, for further details see technical table P007

Assembly position / location any position except for valves type DH-050, DK-150, DP-*50 (without springs) that must be

installed with their longitudinal axis horizontal

Max fluid contamination level ISO4406 class 20/18/15 NAS1638 class 9, see also filter section at www.atos.com or KTF catalog

Compliance

RoHS Directive 2011/65/EU as last update by 2015/65/EU

REACH Regulation (EC) n°1907/2006

DH-04**

7 DIMENSIONS OF HYDRAULIC OPERATED VALVES ISO 4401 size 06 and 10 [mm]

E225

Mass: 1,6 Kg

Mass: 4,2 Kg

Mass: 1,2 Kg

Mass: 3,4 Kg

Mounting subplates: see tab. E010

ISO 4401: 2005

Mounting surface:

4401-03-02-0-05 (see table P005)

Fastening bolts: 4 socket head screws M5x50 class 12.9

Tightening torque = 8 Nm

Diameter of ports A, B, P, T: Ø = 7,5 mm (max)

Seals: 4 OR 108

Mounting subplates: see tab. E025 (only version /Y)

DH-05**

DK-14** DK-15**

Note: Line Y must be always present and no

counter pressure are allowed on this line.

 Pilot pressure port G1/8”

 Manual override

 Pilot pressure port G1/4”

V Air bleed

ISO 4401: 2005

Mounting surface:

4401-05-05-0-05 (see table P005)

(without X port)

Fastening bolts: 4 socket head screws M6x40 class 12.9

Tightening torque = 15 Nm

Diameter of ports A, B, P, T: Ø = 11,2 mm (max)

Diameter of port Y: Ø = 5 mm

Seals: 5 OR 2050, 1 OR 108

Q/Δp DIAGRAMS

DH-0 See note and diagrams on table E010 relating the DH* valve from which DH-0* are derivated

DK-1 See note and diagrams on table E025 relating the DKE valve from which DK-1* are derivated

DP-1 See note and diagrams on table E085 relating the DPH*-1 valve from which DP-1* are derivated

DP-2 See note and diagrams on table E085 relating the DPH*-2 valve from which DP-2* are derivated

DP-4 See note and diagrams on table E085 relating the DPH*-4 valve from which DP-4* are derivated

DP-6 See note and diagrams on table E085 relating the DPH*-6 valve from which DP-6* are derivated

59.5

21.5 21.5

136.5

26.25 26.25 26.25

59.5 59.5

185

38.5

23.5

ø15 ø15 ø15

92.2

64.5

166.7

92.264.5 64.5

221.2

DP-2

Mass: 10 Kg

Mass: 16,5 Kg

Mounting subplates: see tab. K280

Stroke adjustment

device for option /S

Mass: 38 Kg

11/19

8 DIMENSIONS OF HYDRAULIC OPERATED VALVES ISO 4401 size 16, 25 and 32 [mm]

ISO 4401: 2005

Mounting surface:

4401-07-07-0-05

Fastening bolts:

4 socket head screws M10x50 class 12.9

Tightening torque = 70 Nm

2 socket head screws M6x45 class 12.9

Tightening torque = 15 Nm

Diameter of ports A, B, P, T: Ø = 20

Diameter of ports X,Y: Ø = 7 mm

Diameter of port L: Ø = 5 mm

Seals: 4 OR 130, 2 OR 2043

ISO 4401: 2005

Mounting surface:

4401-10-09-0-05

(port L optional)

Fastening bolts:

6 socket head screws M20x80 class 12.9

Tightening torque = 600 Nm

Diameter of ports A, B, P, T : Ø = 34 mm

Diameter of ports X,Y: Ø = 7 mm

Diameter of port L: Ø = 5 mm

Seals: 4 OR 144, 2 OR 3056

DP-6

Only for

option /H

ISO 4401: 2005

Mounting surface:

4401-08-08-0-05

Fastening bolts:

6 socket head screws M12x60 class 12.9

Tightening torque = 125 Nm

Diameter of ports A, B, P, T : Ø = 24

Diameter of ports X,Y: Ø = 7 mm

Diameter of port L: Ø = 5 mm

Seals: 4 OR 4112, 2 OR 3056

DP-4

Stroke adjustment

device for option /S

Stroke adjustment

device for option /S

Only for

option /H

Only for

option /H

ISO 4401: 2005

Mounting surface: 4401-05-05-0-05

(see table P005)

Fastening bolts:

4 socket head screws M6x40 class 12.9

Tightening torque = 15 Nm

Diameter of ports A, B, P, T : Ø = 11

Diameter of ports X,Y: Ø = 5 mm

Seals: 5 OR 2050, 2 OR 108

DP-1

Only for

option /H

Mass: 7,1 Kg

30 62,5 62,5 30

49.77

185

49.77 35 35

33.5 33.5

151

86 40 25

220

14438 38

162

254097

191

290

49.5 49.5109 max

118

126 40 25

191

232.5

167.5 40 25

200

395

27560 60132 max

85 max