TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

1

Specifications are subject to change without notice.

FLUID-SYSTEM is a leader in the design of anti-slipping system (registered patent) for hydrostatic transmissions

and will put its experience to work for you.

The flow divider is a slip preventing system for all types of hydrostatic transmissions. It provides 100%, on

demand traction for any field configuration.

FLUID-SYSTEM's flow divider is designed to suit the highest of performance and safety standards for all of our

clients.

The bidirectional flow divider controls the speed between wheels of the same axle, or between different axles

by dividing or combining the flow. It is equipped with an electric or hydraulic controlled bypass that enables a

higher operating speed on the road. It can be equally used on open or closed loop circuits.

FLUID-SYSTEM flow divider versatility allows for different installation options on many types of hydrostatic

transmissions.

→ Up to 450 bar [6527 psi]

→ Up to 150 l/min [39.6 gpm]

→ Direct in-line mounting, depending on

system configuration

→ Threaded connections :

o ISO 1179 (BSPP/Gas)

o ISO 11926 (UNF)

→ Open or closed loop circuits

→ Can work by dividing or combining the

flow

2 WAY FLOW DIVIDER - Spool size 20

 DESCRIPTION

S

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

2

→ Designed to reduce the installation and operation costs

→ Robust and reliable

→ No need for maintenance: cost savings and reduced risk of equipment failure

→ Cost-effective solution

→ Flows can be added or divided with precision

→ Flow ratio can be adjusted to customer need

→ Large range of options

→ Long life span

→ Rigorously designed; bench and field tested

 BENEFITS

 HYDRAULIC SCHEMATIC

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

3

Can be found in many configurations:

 1 solenoid valve (as shown above)

 2 solenoid valves

 3 solenoid valves (by special request)

 4 solenoid valves

Each additional solenoid valve added after the first one enables the control of other functions like a feeding

pump, a brake, a speed control, a selector, etc...

To obtain a specialized configuration technical specifications sheet, please contact our team.

 OVERALL DIMENSIONS

Millimeter (Inches)

(5.32"max)

(6.50"max)

(4.45"max)

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

4

If you need to install a flushing valve in a closed loop circuit equipped with a flow divider, the flushing

valve must be installed between the pump and the flow divider.

Maximum Flow

150 l/min (39.6 gpm)

Operating Pressure

450 bar (6527 psi)

Piloting Pressure

Min 8 bar (116 psi) - Max 50 bar (725 psi) *

Maximum Pressure

500 bar (7255 psi)

Operating Temperature

-20°C to 80°C (32°F to 176°F)

Seals

NBR **

Threaded Connections

ISO 1179 (BSP/Gas) - ISO 11926 (UNF)

Weight

8.9 kg (19.6 lbs)

Material

Steel

Viscosity

Between 10 and 100 cst

Pollution Level

20/18/15 as per ISO 4406

Surface Treatment

Phosphatation

* Values can be changed upon request to our engineering department.

** Other seals available on demand.

 INSTALLATION WARNING

 TECNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

5

Size

Max Flow

Ports

European Threades

Connections

ISO 1179-1

US Threaded

Connections

ISO 11926-1

Protective

Cap

20

150 l/min

T – G1

3/8" BSP

3/4" - 16 UNF- 2B

Plastic

A, B

1/2" BSP

7/8" - 14 UNF- 2B

Plastic

P

3/4" BSP

1 1/16" - 12 UNF-2B

Plastic

a. DIVISION SPECIFICATIONS

Division ratio can be : 50/50 – 70/30 – 80/20

The precision is determined by the pressure difference of 150 bar (2176 psi) between A and B,

without orifice and with a ratio of 50/50; it is equal to:

QA QB

QP QP

 PORT TABLE

 SPECIFICATION CURVES

% incoming flow

%

division

accuracy

ou

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

6

b. PRESSURE DROP

Bypass mode

Division mode

The total pressure drop corresponds to the loss at the transfer restrictor boundaries increased by the loss of

the block itself.

Test conditions: HV 46 hydraulic fluid at 40°C [104°F]

5 bar

(72.5 psi)

Max flow

Outlet flow l/min (gpm)

Pressure drop bar (psi)

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

7

c. TRANSFER RESTRICTOR (with orifice size)

It is located between the two outlets.

Transfer restrictor calculation:

d. CHECK VALVES ON FEEDING SYSTEM

In some applications, a receiver located in front of the flow divider can use a higher flow than the one supplied.

In this case, the oil is brought back in the line in order to protect the components from cavitation.

When a vehicle equipped with a hydrostatic transmission takes a turn, the external wheel must turn faster than

the interior one. If the divider is installed between the right and the left wheels and is activated (without the

bypass mode) while taking the turn, the check valves on the feeding system can be useful.

Note: Trials will confirm the required sizing for the application.

Nominal flow is aroud 40 l/min (10.6 US gpm) with a loss not exceeding 6 bar (87 psi).

S Section

Q

Dp

bar

l /min

Restrictor shape

(0.65 – 1.5)

cm

2

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

8

1

2

3

4

5

6

7

8

9

10

11

12

13

D

B

-

Function (1)

Transfer restrictor (7) from

A to B

Connection (12)

DB

Flow divider

01

Standard UNF

00

Without

02

BSP option

Operation way (2)

06

0,6 mm (0.024 in)

XX

Upon request

DE

Bidirectional

08

0,8 mm (0.031 in)

10

1 mm (0.039 in)

Special design (13)

XX

Upon request

NNN

Sans

No. of branches (3)

1

Branch protection HP (8)

2

2X

3

00

without

4

30

300 bar (4353 psi)

38

380 bar (5514 psi)

Max flow (4)

42

420 bar (6094 psi)

Size

Max Flow*

XX

Upon request

20

200

28

300

By pass (9)

XX

Upon request

01

Hydraulic

02

Electrical 12V

Divided flow** (5)

03

Electrical 24V

010

10 l/min

XX

Upon request

020

20 l/min

040

40 l/min

Accessories (10)

080

80 l/min

00

without

150

150 l/min

01

1 accessory

xxx

Upon request

02

2 accessories

03

3 accessories

Division ratio (6)

XX

Upon request

50 - 50

70 - 30

Supply Voltage (11)

80 - 20

NN

Without

60 - 40

12

12 V

75 - 25

24

24 V

55 - 45

XX

Upon request

XX - YY (upon request)

* in by-pass mode

** Flow for which division ratio is optimum

 PRODUCT CODE

TECHNICAL SPECIFICATIONS 2 WAY FLOW DIVIDER - 20

DISTRIBUTOR : Fluidesign Group

4, rue du moulin Cuzieu

42420 LORETTE

Tél: +33(0) 4 77 73 70 70

Fax:+33(0) 4 77 73 70 79

www.fluidesign-group.com

Last update : 28/10/2015

9

WITH HYDRAULIC CONTROL

WITH ELECTROHYDRAULIC CONTROL

→ Excavation machinery

→ Paved road sweepers

→ Forestry equipment

→ Harvesting machinery

→ Agricultural machinery

→ Self-propelled mowers

→ Lifting cranes

Transmission circuit examples (Flow divider with integrated pressure supply valves)

Flow divider operating as a wheel separator (Pst) with

integrated pressure supply valves and supply port (S).

Flow divider operating as an axis separator with

integrated pressure supply valves and supply port (S).

Note: If you need to install a flushing valve in a closed loop circuit equipped with a flow divider, the flushing

valve must be installed between the pump and the flow divider. If necessary please consult us.

With electric controls, direct-acting, with spool valve, hydraulic screw distributor…

 APPLICATIONS

 ACCESSORIES