— The BLS6 directional control valve is stackable and can be

assembled up to 8 different proportional and on/off

modules .

— Each module is equipped with a meter-in compensator that

keep costant the flow, independently from load changes.

— Sections with pressure compensators are not influenced in

any way by other operated functions, provided that

sufficient pump capacity is available. To correctly work, the

sum of the flows contemporarily used must not overcome

the 90% of the inlet flow.

— The user ports A and B are threaded 1/2” BSP. On the inlet

module the ports P1, P2 and T1 are threaded 3/4” BSP.

— The manual lever override is available as option.

BLS6

BANKABLE LOAD SENSING

PROPORTIONAL

CONTROL VALVE

SERIES 11

HYDRAULIC SYMBOL

OPERATING PRINCIPLE

44 150/112 ED

p max 300 bar

Q max 120 l/min

Maximum operating pressure:

- A and B ports

- P1 and P2 ports

- T1 port

bar

300

250

Maximum flowrate:

- A and B ports

- P1 and P2 ports

- T1 port

l/min

100

120

Electrical characteristics see paragraph 5

Ambient temperature range °C -20 / +60

Fluid temperature range °C -20 / +80

Fluid viscosity range cSt 10 ÷ 400

Fluid contamination degree

According to ISO 4406:1999

class 18/16/13

Recommended viscosity cSt 25

Single body mass kg 4,5

Surface treatment of body and plates thermochemical antioxidant

PERFORMANCES (obtained with mineral oil with viscosity of 36 cSt at 50°C )

1/14

44 150/112 ED

1 - IDENTIFICATION CODES FOR LOOSE MODULES

Seals:

V = FPM seals (standard)

Solenoid position:

(omit for configuration with two solenoids)

A = 1 solenoid on side A

B = 1 solenoid on side B

Size

Spool nominal flow (see below)

Spool type:

PC = closed centers

PA = open centers

Compensated direct operated

directional valve with

proportional control

BLS 6 - / 11 V - /

Coil electrical connection:

(see paragraph)

K1 = plug for connector type

DIN 43650 (standard)

K7 = plug for connector type

DEUTSCH DT04-2P male

1.1 - Proportional module

Here below all the loose components identification codes of the bankable valve are shown. To order a whole assembled valve, please use the

codes at paragraphes 9 and 10.

The inlet section is available in different version for fixed pump and for system with Load Sensing pump.

Series no. (the overall and mounting dimensions remain

unchanged from 10 to 19)

Coil type:

D12 = Nominal solenoid voltage 12V DC

D24 = Nominal solenoid voltage 24V DC

Manual override

(see par. 11)

SPOOLS

Valve configuration depends on the combination of the following elements:

number of proportional solenoids, spool type, nominal flow rate.

2 solenoids configuration:

3 positions with spring centering

1 solenoid on side A.

2 positions (central + external) with

spring centering

1 solenoid on side B.

2 positions (central + external) with

spring centering

ASYMMETRICAL

max flow ∆p

15/10 4

25/15 8

30/20 4

45/30 8

SYMMETRICAL

max flow ∆p

15/15 4

25/25 8

30/30 4

45/45 8

SINGLE FLOW

max flow ∆p

30 4

45 8

BLS6

SERIES 11

2/14

44 150/112 ED

The inlet section is available in different version, for fixed and for variable pumps with load sensing. The version for fixed pump can be easily

converted to work with variable pumps and vice versa.

Seals:

V = FPM seals (standard)

Series no.: (the overall and mounting dimensions

remain unchanged from 10 to 19)

Nominal size

C0 = without compensator (NOTE)

CF = for fixed pump

CV = for variable pump

Pressure adjustment range:

0 = no relief valve

5 = from 12 to 210 bar

6 = from 15 to 315 bar

Compensated direct

operated directional valve

with proportional control

BLS 6 - / 11 V

Series no.: (the overall and mounting dimensions

remain unchanged from 10 to 19)

Nominal size

C91 = without load sensing port

C92 = with load sensing port

Compensated direct

operated directional valve

with proportional control

BLS 6 - / 11

1.3 - Inlet modules

If necessary the proportional spool can be used together with on-off solenoids. In this case the description for the spool type as to be as

follow:

SC = closed center with on-off solenoid

SA = open center with on-off solenoid

In this version is also available a spool for high flow named SC60/60 and SA60/60.

1.2 - On-off modules

1.4 - End plate modules

NOTE: The version C0 is available only without the pressure relief valve, code BLS6-C00/11V.

BLS6

SERIES 11

3/14

44 150/112 ED

2 - HYDRAULIC FLUIDS

Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4 or fluids HFDR type. For the use of other kinds of fluid such as

HFA, HFB, HFC, please consult our technical department. Using fluids at temperatures higher than 80 °C causes a faster degradation of the

fluid and of the seals characteristics.

The fluid must be preserved in its physical and chemical characteristics.

3 - CHARACTERISTIC CURVES (values obtained with viscosity 36 cSt at 50 °C)

PROPORTIONAL MODULES PRESSURE DROPS ∆p-Q

Typical constant flow rate obtained with internal 2-way compensator, and current with 12V solenoid type (for D24 version the maximum current

is 860 mA), measured for the various spool types available.

SYMMETRICAL FLOWS - PC AND PA SPOOLS

ASYMMETRICAL FLOWS - PC AND PA SPOOLS

FLOWRATE - PRESSURE Q= f(p) CV-CF INLET MODULE PRESSURE DROPS ∆p= f(Q)

BLS6

SERIES 11

4/14

44 150/112 ED

BLS6

SERIES 11

5/14

44 150/112 ED

4 - ELECTRICAL CHARACTERISTICS

5 - STEP RESPONSE

(measured with mineral oil with viscosity of 36 cSt at 50°C with the relative

electronic control units)

Proportional solenoid

The proportional solenoid comprises two parts: tube and coil.

The tube, screwed to the valve body, contains the armature which

is designed to maintain friction to a minimum thereby reducing

hysteresis.

The coil is mounted on the tube secured by means of a lock nut.

It can be rotated through 360° depending on installation clearances.

Step response is the time (delay) taken for the valve to reach 90%

of the set position value following a step change of the reference

signal.

Reference

signal step

0 →100% 100 →0%

Step response [ms]

BLS6 50 40

6 - ELECTRIC CONNECTIONS

connection for DIN 43650 connector

code K1 (standard)

connection for DEUTSCH DT04-2P connector type

code K7

7 - ELECTRIC CONNECTORS

The on-off valves are supplied without connectors. For coils with standard electrical connections K1 type (DIN 43650) the connectors can be

ordered separately. For the identification of the connector type to be ordered please see cat. 49 000. Connectors for K7 connections are not

available.

coil

center line

Plug-in type IP 65 IP 69 K

K1 DIN 43650 x (*)

K7 DEUTSCH DT04 male x x (*)

Protection from atmospheric agents CEI EN 60529

(*) The protection degree is guaranteed only with the connector

correctly connected and installed

NOMINAL VOLTAGE V DC 12 24

RESISTANCE (at 20°C) K1 COIL

K7 COIL

Ω

3.66

17.6

NOMINAL CURRENT

A 1.88 0.86

DUTY CYCLE

100%

PWM FREQUENCY

Hz 200 100

ELECTROMAGNETIC COMPATIBILITY

(EMC)

According to

2004/108/CE

CLASS OF PROTECTION :

Coil insulation (VDE 0580)

Impregnation:

class H

class F

8 - OVERALL AND MOUNTING DIMENSIONS

8.1 - Proportional module

dimensions in mm

1 Mounting surface with

sealing rings:

n° 4 OR 2056 (14x1.78)

90 shore

2 Locking ring with boot

protected manual override

3 Coil removal space

4 Electrical connector type

DIN 43650 (drawing with

standard type K1 - for other

connections see par. 6)

5 Connector removal space

1 SOLENOID

2 SOLENOIDS

BLS6-PC*

BLS6-PA*

BLS6-PCB*

BLS6-PAB*

BLS6

SERIES 11

6/14

44 150/112 ED

n° 6 holes M6x10

solenoid position for PCA*

and PAA* configurations

BLS6

SERIES 11

7/14

44 150/112 ED

8.2 - Inlet modules

dimensions in mm

BLS6-C00

1 Mounting surface with

sealing rings:

n° 4 OR 2056 (14x1.78)

90 shore

2 Load Sensing port:

1/4”BSP with orifice

3 P1, P2 and T1 ports:

3/4” BSP

4 Pressure gauge port:

1/4” BSP

for fixing

8.2 - Inlet modules

dimensions in mm

BLS6-CF*

BLS6-CV*

for fixing

BLS6

SERIES 11

8/14

44 150/112 ED

1 Mounting surface with

sealing rings:

n° 4 OR 2056 (14x1.78)

90 shore

2 Load Sensing port:

1/4” BSP

3 P1, P2 and T1 ports:

3/4” BSP

4 Pressure gauge port:

1/4” BSP

5 T2 port: 1/2” BSP

6 Special plug for the

pressure relief valve seat.

(D). Orifice seat “A”

underneath.

BLS6-CF0

orifice “C” underneath

orifice seat “B”

underneath, on the spool

orifice seat “E”

underneath

“E”

8.3 - End modules

dimensions in mm

1 Mounting surface

with no sealing rings

2 T1 outlet: 3/8” BSP

3 Identification label

4 Load Sensing port:

1/4” BSP

5 Identification label

BLS6-C91

n° 2 holes fox fixing M8x13

BLS6

SERIES 11

9/14

44 150/112 ED

BLS6-CF5

BLS6-CF6

BLS6-CV5

BLS6-CV6

BLS6-C92

“E”

Inlet module:

C0 = without compensator (NOTE)

CF = for fixed pump

CV = for variable pump

Coding example:

BLS6-C00-PC30/30-PC30/30-C92/11V-D24K1: assembled valve includes: inlet module without 3 way compensator; 2 prop.

modules with closed center flow 30/30; end plate without load sensing port; FPM seals, 24V DC coils and K1 connection.

BLS6-CF5-PA45/30-PA45/30-PC30/30-PAB15/15-C91/11V-D12K1: assembled valve includes: inlet module for fixed pump, with

pressure max 210 bar; 2 prop. modules with open center flow 45/30, 1 prop. module with close center, flow 30/30 and 1 prop. module

with open center and solenoid only on side B, flow 15/15; end plate with load sensing port; FPM seals, 12V DC coils and K1 connection.

NOTE: To obtain the best performances, we suggest to mount the spool with the max flow first, and then the others

decreasing.

9 - IDENTIFICATION CODE OF ASSEMBLED VALVE

Seals:

V = FPM seals (standard)

Series no.: (the overall and mounting

dimensions remain unchanged from 10 to 19)

Compensated direct

operated directional

valve with proportional

control

BLS6 - / 11 V -

- -

Coil type:

D12 = Nominal solenoid voltage 12V DC

D24 = Nominal solenoid voltage 24V DC

Coil electrical connection:

(see paragraph 9)

K1 = plug for connector type

DIN 43650 (standard)

K7 = plug for connector type

DEUTSCH DT04-2P male

BLS6

SERIES 11

10/14

44 150/112 ED

NOTE: The version C0 is available only without the pressure relief valve, wiith code BLS6-C00/11V.

Pressure adjustment range:

0 = no relief valve

5 = from 12 to 210 bar

6 = from 15 to 315 bar

End plate:

C91 = without load sensing port

C92 = with load sensing port

Proportional module:

Choose open or closed center, and then the

spool type, like code in par. 1.1

Repeat for each proportional module required,

max 8 modules.

Manual override on all

proportional modules

(see par. 13)

10 - INSTALLATION AND OVERALL DIMENSIONS OF THE ASSEMBLED VALVE

dimensions in mm

1 Inlet module

2 Pressure relief valve

3 Proportional modules

4 End plate

5 Fixing studs

6 Fixing holes

7 Manual lever override

module

BLS6

SERIES 11

11/14

44 150/112 ED

Fixing kit

No. of body

modules

Code

2 3404150010

3 3404150011

4 3404150012

5 3404150013

6 3404150014

7 3404150015

8 3404150016

The fixing kit includes n° 3 studs,

3 self locking nuts and 3 washers,

all zinc-coated.

To order it please use the following

codes:

Modules

(NOTE)

2 212 132,5

3 262 182,5

4 312 232,5

5 362 282,5

6 412 332,5

7 462 382,5

8 512 432,5

NOTE: with the inlet module

BLS6-C00 the dimension

results 10 mm shorter.

Tightening torque: 25 Nm

(NOTE)

44 150/112 ED

12/14

BLS6

SERIES 11

11 - MANUAL OVERRIDE

The standard valve has solenoids whose pin for the manual operation is integrated in the tube. The operation of this control must be executed

with a suitable tool, minding not to damage the sliding surface.

Four different manual override version are available upon request:

- CM version, manual override belt protected.

- CS version, with metal ring nut provided with a M4 screw and a blocking locknut to allow the continuous mechanical operations.

- CH version, lever manual override.

- CK version, knob. When the set screw is screwed and its point is aligned with the edge of the knob, tighten the knob till it touches the spool:

in this position the override is not engaged and the valve is de-energized. After adjusting the override, tighten the set screw in order to avoid

the knob loosing.

CM Version CS Version

Code: 3803210003 Code: 3803210004

CH Version

max stroke 6.4

CK Version

Spanner for set screw: 3 mm

Code: 3803210005

44 150/112 ED

13/14

BLS6

SERIES 11

These cards drive only a module at once.

Every module to be driven with electronic card must have its

one.

Two solenoids

One solenoid

12 - ELECTRONIC CONTROL UNITS

EDM-M211 for solenoid 24V DC

rail mounting

DIN EN 50022

see cat. 89 250

EDM-M241 for solenoid 12V DC

EDC-111 for solenoid 24V DC

plug version

see cat. 89 120

EDC-141 for solenoid 12V DC

EDM-M111 for solenoid 24V DC

DIN EN 50022

rail mounting

see cat. 89 250

EDM-M141 for solenoid 12V DC

13 - EXAMPLES OF APPLICATION

BLS6 valve for fixed diplacement pumps with pressure relief valve.

BLS6 valve for systems with LS pump. The system is equipped with a pilot-operated relief valve, protecting the

pump.

44 150/112 ED

14/14

DUPLOMATIC OLEODINAMICA S.p.A.

20015 PARABIAGO (MI)  Via M. Re Depaolini 24

Tel. +39 0331.895.111

Fax +39 0331.895.339

www.duplomatic.com  e-mail: sales.exp@duplomatic.com

BLS6

SERIES 11

REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.

Example of two BLS6 valves linked with parallel connection for the pump and serial connection for LS port.