POC76
1Pages

Catalog excerpts

PILOT OPERATED CHECK VALVE (or Counter Balance Valve) • PRECISION GROUND HEAT TREATED SPOOL that assures long life. • FREE FLOW IN ONE DIRECTION and checked flow in the other (Not a zero leak check). • BUILT IN DAMPENING CHAMBER provides smooth action when pilot pressure is applied. • HOLES DRILLED CROSS-WISE allow the flow to gradually increase and decrease as it closes • 30 Micron filtration recommended • Cast Iron Body • Heat Treated Steel Spool • Delrin Check Poppet The Brand, pilot check valve will permit free flow in one direction and will check flow in the opposite direction. Applying pilot pressure to the pilot port of this valve moves the main spool, causing it to shift and unblock the flow. Pilot pressure must be 50 psi (3.4 bar) or greater. The POC76-3/4 is normally connected to the bottom of a cylinder holding a heavy load. This valve will prevent the load from free falling if a hose or pipe breaks. The valve meters the flow at the same rate in both directions which prevents cavitation and run-a-way. Metering the flow can be accomplished by varying the pilot pressure. The POC76-3/4 is available in production quantities of 100 and greater, unless in stock. DIMENSIONAL DATA (POC76-3/4 SHOWN): inches & [millimeters] CYLINDER PORT" PUMP PORT" PILOT PORT

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POC76 1Pages

Catalog excerpts

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POC76
1Pages