SECTIONAL VALVE 250L GS

SECTIONAL VALVE 250L GS

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TECHNICAL INFORMATION

WORKING CONDITIONS

This catalogue shows technical specifications and diagrams measured with mineral oil of 46 mm2/s – 46cSt viscosity at 40°C temperature.

Nominal flow rating

 

250 l/min.

 

Max. flow

 

380 l

 

Operating pressure (max.)

Series-parallel (tandem) circuit

315 bar

4600 psi

Back pressure (max.)

on outlet port T

25 bar

360 psi

Internal leakage A(B)®T

Dp=100 bar – 1450 psi fluid and valve at 40°C

4cm3/min.

0.24 in3/min.

Hydraulic fluid

 

Mineral base oil

 

Fluid temperature

with NBR seals

from - 20° to 80°C

 

with FPM (VITON) seals

from - 20° to 100°C

 

Viscosity

operating range

from 15 to 75 mm2/s

from 15 to 75 cSt

Min.

12 mm2/s

12 cSt

Max.

400 mm2/s

400 cSt

Max. level of contamination

 

19/16 – ISO 4406

 

 

PORTS THREAD

PORTS

BSP(ISO 228/1)

OPTIONAL

UN-UNF(ISO 11926-1)

Inlet P

G 1

G 1 1/4

1 5/8 - 12 UN - 2B (SAE 20)

A and Bports

G 1

G 1 1/4

1 5/16 - 12 UN - 2B (SAE 16)

Outlet T and carry-over C

G 1 1/4

G 1 1/2

1 5/8 - 12 UN - 2B (SAE 20)

PILOT PORTS

Hydraulic ports

G 1/4

-

-

Pneumatic ports

G 1/8

-

-

DIMENSIONAL DATA

APPLICATION AREAS

This 250L GS directional control valve group is commonly used for excavators, front loaders, cranes and backhoe loaders, vessels, fishing vessels.