2 - TCA spa

1HSH26 / 1HSH756 HOT OIL SHUTTLE& PURGE RELIEF VALVE1HSH*P1P2CT1CT2TAPPLICATIONThis valve in one block provides hot oil shuttle andpurge relief for transmission systems to removecharge pump oil from the heated oil side of the system.OPERATIONWhen the pressure in line P1 exceeds the pressure inP2, the P2 side is opened to tank through a purge reliefremoving excess oil at a pre-set pressure, ensuringsaturation of the pump’s suction line. When thepressure in P2 is greater than P1 the reverse of theabove takes place.FEATURESCompact design with through ports makes for easyinstallation into a system. Pilot style purge relief gives flatpressure drop charactersitics for exhausted oil.SPECIFICATIONSFigures based on: Oil Temp = 40°C Viscosity = 40 cStMax WorkingPressure400 bar (5800 psi)PRESSURE DROP P1/P2 - T1HSH26FLOW-US GPM0 1 2 3 4 5 640Rated PurgeOil FlowMax Setting1HSH26 20 litres/min (5 US GPM)1HSH756 75 litres/min (19 US GPM)1HSH26 100 bar (1500 psi)1HSH756 70 bar (1000 psi)13PRESSURE-BAR35302520151050050040030020010005 10 1520 25FLOW-LITRES/MINPRESSURE - PSIBody MaterialMounting PositionWeightSteelLine mounted1HSH26 1.75 kg (3.85 lbs)1HSH756 5.41 kg (11.9 lbs)PRESSURE-BAR5045403530252015105001HSH756FLOW - US GPM0 5 10 152010 20 30 40 50 60 70 80FLOW-LITRES/MIN7006005004003002001000PRESSURE - PSISeal KitNumberRecommendedFiltration LevelOperating Temp1HSH261HSH756Nominal ViscosityRangeSK1277 (Nitrile)SK1278 (Nitrile)BS5540/4 Class 18/13(25 micron nominal)-20°C to +90°C5 to 500 cStSK1277V (Viton)SK1278V (Viton)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.com13-191.D