2 - TCA spa

1CPBD SERIES ZERO DIFFERENTIALOVERCENTRE VALVEFULLY BALANCED - PILOT ASSISTED1CPBD90POPPET RELIEF1VALVE (2)PILOT (3)VENT (4)CYL (1)32 46APPLICATIONZero differential overcentre valves give static anddynamic control of loads by supplying a restriction toflow related to the opening of the valve created by thepilot pressure.The valve is used in conjunction with a remote pilotsource to provide hose failure protection, load controland load holding functions.If over-pressure or shock pressure protection isrequired then a separate relief valve should be used.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax WorkingPressureCartridge MaterialMounting Position90 litres/min (23 US GPM)350 bar (5000 psi)Working parts hardened and groundsteel. External surfaces zinc platedUnrestrictedOPERATIONThe check section allows free flow into the actuator thenholds and locks the load against movement. By theapplication of pilot pressure to the pilot port the poppetmoves back against the main spring opening thecylinder port to the valve port. The metering characteristicof the valve is controlled by the rate of the spring, the seatangle and the pilot pressure applied.Due to the balanced poppet design load inducedpressure will not open the valve and once open valve portpressure will not increase the pilot pressure required tokeep the valve open.FEATURESThe cartridge fits a simple cavity allowing quick, easyfield service reducing down time.Hardened poppet and seat provide for long leak freeperformance.Cavity NumberTorque Cartridgeinto CavityWeightSeal Kit NumberRecommendedFiltration LevelOperating TempLeakageNominal ViscosityRangeA12196 (See Section 17)60 Nm (44 lbs ft)1CPBD90-20°C to +90°C5 to 500 cSt0.29 kg (0.63 lbs)SK634 (Nitrile) SK634V (Viton)SK634P (Polyurethane/Nitrile)BS5540/4 Class 18/13(25 micron nominal)0.3 millilitres/min (5 dpm)Integrated Hydraulics LtdIntegrated Hydraulics IncCollins Road, Heathcote Ind. Est., Warwick, CV34 6TF, UK.7047 Spinach Drive, Mentor, Ohio 44060, USATel: +44 (0) 1926 881171 Fax: +44 (0) 1926 315729 Tel: (440) 974 3171 Fax: (440) 974 3170Website: www.integratedhydraulics.comWebsite: www.integratedhydraulics.com6-177.B