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Pilot-operated check valves, series ERV
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
ERV 8
ERV 8-600
Nom. flow rate
Oper. pressure, dynamic
Oper. pressure, static
Area ratio
l/min
bar
bar
60
450
450
1:2.5/ 2.1:1
60
450
600
1:2.5/ 2.1:1
Note:
Main stage opens only with reduced pressure
Types
Simple p.o. check valve
Applications
- Stabilizer cylinders on mobile equipment
