2 - TCA spa

MOTOR MOUNTED VALVESOMS MOUNTING PATTERNSINGLE AND DUAL OVERCENTRE VALVE WITH BRAKE RELEASE SHUTTLE1CESHOMS/1CEESHOMSM1M2M1M2M1M2CT1CT3CCT3CT2CT1CT3CT2V1BV2V1BV2V1BV21CESHOMS95-1 1CESHOMS95-2 1CEESHOMS9515APPLICATIONOvercentre 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 directions for motorapplications or for cylinders going over centre.OPERATIONThe 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 RatioPILOT RATIOS4:1 Best suited for applications where the loadvaries and machine structure can induceinstability.8:1 Best suited for applications where the loadremains relatively constant.Other ratios available upon request.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStRated FlowMax SettingCartridge MaterialBody MaterialMounting PositionCavity NumberTorque Cartridgeinto CavityWeightSeal Kit NumberRecommendedFiltration LevelOperating Temp90 litres/min (23 US GPM)Max Load InducedPressure: 270 bar (4000 psi)Relief Setting: 350 bar (5000 psi)Working parts hardened and groundsteel. External surfaces zinc platedStandard aluminium (up to 210 bar*)Add suffix ‘377’ for steel optionUnrestrictedA12336 (See Section 17)60 Nm (44 lbs ft)1CESHOMS951CEESHOMS95BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C2.32kg (5.10 lbs)2.42 kg (5.32lbs)1CESHOMS95 SK1282 SK1282V1CEESHOMS95 SK795 SK795VFEATURESCartridge is economical and fits simple cavity. Allowsquick, easy field service - reduces down time.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.com15-161.A