2 - TCA spa

4CK SERIES CHECK VALVEPILOT TO OPEN4CK30VALVE (2)PILOT (3)1 2CYL (1)37APPLICATIONPilot check valves allow flow to pass in one direction,with a low pressure drop, then prevent reverse flowuntil pilot pressure is applied. There are manyapplications for this valve type, the most commonbeing to lock and hold a cylinder, or another hydraulicactuator, in position.The 4CK30 is a small cartridge valve and is ideallysuited for fitting directly into a cylinder, giving economyof installation, direct control of cylinder movement andease of servicing.OPERATIONPressure on the valve port causes the poppet to liftagainst the spring force, allowing the flow to thecylinder port. Reverse flow is prevented by the poppetreseating. Pressure applied to the pilot port willovercome the cylinder port pressure and lift the poppetfrom its seat, allowing flow from the cylinder to valveport.PRESSURE DROPPRESSURE-BAR252015105FLOW-US GPM0 2.5 5.0 7.5FREE FLOW10PILOTED OPEN12.535030025020015010050PRESSURE-PSIFEATURESHardened and ground poppet gives excellent flowcapability for valve size, positive sealing and long workinglife. Cartridge construction allows installation in actuators,manifold blocks and Hydraulic Integrated Circuits. Fits thesame cavity as the 1CE30 overcentre valve. See page6-111.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax PressurePilot Ratio 3:1Cartridge MaterialBody MaterialMounting PositionWeightSeal Kit NumberRecommendedFiltration LevelOperating TempLeakage30 litres/min (8 US GPM)350 bar (5000 psi)Working parts hardened and groundsteel. Electroless zinc plated bodyUnrestrictedCavity Number A6610 (See Section 17)Torque Cavityinto CartridgeStandard aluminium (up to 210 bar*)Add suffix ‘377’ for steel option.45 Nm (33 lbs ft)4CK304CK354CKK35SK430 (Nitrile)BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C0.08 kg (0.18 lbs)0.34 kg (0.75 lbs)0.76 kg (1.67 lbs)0.3 millilitres/min nominalSK430V (Viton)01020 30 40FLOW LITRES/MIN500Nominal ViscosityRange5 to 500 cSt*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.com7-151.C