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Check Valves DERV

 


Description

Series DERV pilot-operated check valves lock a cylinder in any rest position. 
They are intended for direct mounting in the cylinder.

Advantages

  •    -  Pilot-operated check function and pipe-rupture protection in one valve
  •    -  Optimized hydraulic pilot stage gives gentle opening
  •    -  Leak-free valve seats; hardened, ground and lapped
  •    -  Load pressure acts in the closing direction


Technical Data

Type Nominal flow rate  l/min Operating Pressure, dynamic bar Operating pressure, static bar Area ratio DataSheet
DERV 8 70 350 500 1:18 DERV-8,10 300-P-9050061-en

DERV 10 100 350 500 1:18
 

Double p.o. check valve

 

Applications

  •    -  Stabilizer cylinders on mobile equipment