2 - TCA spa

1RDS303 DIRECT ACTING PRESSURE SEQUENCE VALVE1RDS303-1NORMALLY OPEN3OUTLET (2)INLET (3)TANK (4)1FOR CLOSED TRANSIENTPOSITION SUFFIX WITH - SYPILOT (1)241RDS303-2NORMALLY CLOSED3OUTLET (2)INLET (3)TANK (4)1PILOT (1)2 413APPLICATIONThis valve provides a means of interrupting a pressureline when a predetermined pilot pressure is reached ina normally open or normally closed form.The valve can be used in any pilot or small flow systemas a remotely operated sequence valve.OPERATIONWhen a pre-set pilot pressure is reached the spoolmoves back against the spring either opening orclosing the line between inlet and outlet. When the pilotpressure falls the valve will return to its normalposition.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax WorkingPressurePilot PressureCartridge MaterialBody MaterialMounting PositionCavity NumberTorque Cartridgeinto Cavity30 litres/min (8 US GPM)350 bar (5000 psi)10 to 100 bar (145 to 1450 psi)Max pilot pressure 210 barAll working parts hardened andground steel. External surfaces zincplatedStandard aluminium (up to 210 bar*)Add suffix ‘377’ for steel optionUnrestrictedA5302 (See Section 17)60 Nm (44 lbs ft)FEATURESCartridge design enabling speedy servicing whenmounted in a body or in a composite manifold.WeightSeal Kit NumberRecommendedFiltration LevelOperating TempLeakageNominal ViscosityRange0.24 kg (0.53 lbs)SK645 (Nitrile)BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C50 millilitres/min nominal5 to 500 cStSK645V (Viton)*For applications above 210 bar please consult our technical department or use the steel body option.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.com13-171.F