Pre-Fill Valve (FPF)

Feature: Compact construction, available for large flow, no leaking. It must leak the pressure before turning on.

Function: A drain valve between hydraulic cylinder and tank.

During operation in a large pressure mechanism, it needs to suck oil from tank to hydraulic cylinder. While pressurizing, it prevents the oil flowing from hydraulic cylinder to tank. When reversion, hydraulic cylinder will make oil draining to tank.

*Flange on Port
FPT: With flange on port P, T
FP: With flange on port P
FT: With flange on port T

add to Inquiry Cart Model Valve Size Flange on Port Cracking Pressure Max. Flow


2" FPT / FP / FT 0.12 kg/cm2 250 L/min


3" FPT / FP / FT 0.12 kg/cm2 400 L/min


3-1/2" FPT / FP / FT 0.12 kg/cm2 630 L/min


4" FPT / FP / FT 0.12 kg/cm2 1000 L/min


5" FPT / FP / FT 0.12 kg/cm2 1600 L/min


6" FPT / FP / FT 0.13 kg/cm2 2500 L/min