One-way flow control valve
TYPE: VRFU 90
USE: These valves are used to adjust speed of actuators in one direction; flow is free in the reverse .
Pressure compensation is not provided, flow rate depends on pressure and oil viscosity. These valves are characterised by a high adjustment accuracy.
MATERIALS AND FEATURES:
Body: zinc-plated steel.
Internal parts: hardened and ground steel.
Seals: BUNA N standard
APPLICATIONS:Connect V to the supply and C to the actuator to control; flow is adjust from C to V and is free in the reverse direction. When used on actuators with double pilot check valves, VRFU 90° has to be mounted between the actuator and the double pilot check valve. Flow adjustment is done by rotating the plastic hand knob after loosening the side locking screw.
This particular configuration allows an accurate adjustment.
Oil temperature: 50 ° C
Oil viscosity: 30 cSt