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1CEESHOMP35MOTOR MOUNTED VALVESOMP MOUNTING PATTERNSINGLE AND DUAL OVERCENTRE VALVE WITH BRAKE RELEASE SHUTTLEM1M2M1M2M1M2CT1CT3CT3CT2CT1CT3CT2V1 BR1 BR2 V2V1 BR1 BR2 V2V1 BR1 BR2 V21CESHOMP35-1 1CESHOMP35-2 1CEESHOMP35APPLICATIONOvercentre valves give static and dynamic control ofloads by regulating the flow into and out of hydraulicactuators. When installed close to or within anactuator, the overcentre valve will stop runaway in theevent of hose burst and if open centre directionalcontrol valves are used, will allow thermal expansionrelief of the hydraulic fluid.The overcentre cartridge is ideal for mounting directlyinto a cavity machined in the body of the cylinder, motoror rotary actuator. The cartridge can also be mounteddirectly to the ports via a specifically machined body aspart of a Hydraulic Integrated Circuit or single unit, orcontained within one of our standard line bodies.Single overcentre valves are normally used when theload is unidirectional, for example an aerial platform orcrane and dual overcentre valves are used forcontrolling loads in both directional for motorapplications or for cylinders going over centre.PILOT RATIOS2.5:1 Best suited for extremely unstableapplications such as long booms or flexibleframeworks.5:1 Best suited for applications where load varies(Standard) and machine structure can induce instability10:1 Best suited for applications where the loadremains relatively constant.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax Setting30 litres/min (8 US GPM)Max Load InducedPressure: 270 bar (4000 psi)Relief Setting: 350 bar (5000 psi)15OPERATIONThe check section allows free flow into the actuatorthen holds and locks the load against movement. Thepilot assisted relief valve section will give controlledmovement when pliot pressure is applied. The reliefsection is normally set to open at a pressure at least1.3 times the maximum load induced pressure but thepressure required to open the valve and allowmovement depends on the pilot ratio of the valve. Foroptimisation of load control and energy usage, achoice of pilot ratios is available.The pressure required to open the valve and startactuator movement can be calculated as follows:Pilot Pressure = (Relief Setting) - (Load Pressure)Pilot RatioFEATURESCartridge MaterialBody MaterialMounting PositionCavity NumberTorque Cartridgeinto CavityWeightSeal Kit NumberRecommendedFiltration LevelOperating TempWorking parts hardened and groundsteel. External surfaces zinc platedStandard aluminium (up to 210 bar*)Add suffix ‘377’ for steel optionUnrestrictedA6610 (See Section 17)45 Nm (33 lbs ft)1CESHOMP351CEESHOMP35BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C2.29 kg (5.04lbs)2.34 kg (5.15 lbs)1CESHOMP35 SK1285 SK1285V1CEESHOMP35 SK1284 SK1284VCartridge is economical and fits simple cavity. Allowsquick, easy field service - reduces down time. Directlyinterchangeable with 30 litres/min pilot check valve.See catalogue page 7-151.LeakageNominal ViscosityRange0.3 millilitres/min nominal (5 dpm)5 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.com15-151.A