Check Valves ERV

Description

Series ERV 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
ERV 8 60 450 450 1:2.5/ 2.1:1
ERV 8-600 60 450 600 1:2.5/ 2.1:1

Note:
Main stage opens only with reduced pressure

Models

Simple p.o. check valve

Applications

  • Stabilizer cylinders on mobile equipment