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RD-1650 Pilot Operated Check Valve

*1/4 NPT pilot port

1/4 NPT pilot port.  Used as a lock valve to hold a cylinder in position. Allows free flow into cylinder but blocks outflow until the pilot port is pressurized. Pilot is usually connected to a tee in the opposite cylinder port. Two-stage (cascading) poppet allows smooth, chatter-free operation. Use two valves to lock both ends of a cylinder. Pilot Ratio 4:1, decompression 16:1 (NOT for large booms or man-lifts - use SUN single holding valves or SUN double holding valves: CLICK HERE)


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