LCBSN-20-S3
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A cartridge-style standard capacity counterbalance valve
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Technical Feature
OPERATION:
Counterbalance valves with pilot assist are meant for control on overrunning load. The check valve allows free flow from port ② to port ① while a direct-acting, pilot-assisted relief valve controls flow from port ① to port ② . Pilot assist at port ③ lowers the effective setting of the relief valve at a rate determined by the pilot ratio.
FEATURES：
• Counterbalance valves should be set at least 1.3 times the maximum load induced pressure.
• Factory pressure setting established at 5l/min. -
PerformanceCurves
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Technical Data
FlowSee PRESSURE DROP VS.FLOW graph.Cavity20-S3FiltrationRefer to "Cleanliness of Hydraulic Fluid"Max.Setting350 barMax.Recommended Load Pressure at Max.Setting270 barLoad Holding Pressure350 barCrack Pressure0.8 barInternal Leakage5 -10 drops/min. at 80% of pressure setting(max. 40 drops/min.)Pilot Ratio10=8:1; 03=4:1Temperature-40°F to +250°F(-40°C to +120°C)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body MaterialSteel & Ductile iron rated to 350bar -
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