Auxiliary Valve QDS6 - Oleosistemas

Catalogue HY17-8542/UK/USTechnical DataPossible pressure setting ranges(applicable range will depend on pressure setting you specify)Switching pressure4-10 bar11-20 bar21-30 bar31-45 bar46-150 bar150-250 barWorking pressureMax. 250 barTank pressureMax. 250 bar in pressure shocks.Recommended flow rateMax. 20 l/minConnectionsAll connections are available in two versions:- G1/4 (BSP pipe thread) for flat seal (type Tredo) according toISO 228/1.- 9/16-18 UNF-2B for O-ring seal according to SAE J1926/1.LeakageAt pressure differential of 100 bar and viscosity of 30 mm/s 2 :P to S max. 12 cm 3 /minS to T max. 12 cm 3 /minP to X max. 5 cm 3 /minWeightApprox. 1.0 kgAuxiliary ValvesQDS6∆ p (bar)353025201510500 5 10 15 20 25 30 35q (l/min)Pressure drop for QDS61 = Pressure drop P-S for spool A and B2 = Pressure drop S-T for spool C and E3 = Pressure drop P-S for spool C and E4 = Pressure drop S-T for spool A and BDPSTSSpool A1234(Positively overlapped spool)XHydraulic fluidsBest performance is obtained using mineral-base oil of highquality and cleanness in the hydraulic system. HLP hydraulicfluids (DIN 51524), automatic-gearbox oil type A and API CDengine oils can be used. If in doubt, please contact Parker forfurther information.For best function, oil viscosity should be between 15 and 45mm/s 2 (cSt).PSpool BTXFiltrationFiltration should be arranged so that Target ContaminationClass 18/16/13 according to ISO 4406 is not exceeded.TemperatureTemperature range, fluid:-20 °C to + 70 °CTemperature range, ambient:-40 °C to +70 °CTemperature-shock resistance: max. 100 °C/secondGeneralTechnical data in this catalogue is applicable using mineralbase oil according to DIN 51524 at a viscosity of 30 mm 2 /s andtemperature of 50 °C.DPSSpool CTSXFor damped signalonlyXSpool EPFunctional symbols for QDS6T4 Parker HannifinMobile Controls DivisionBorås, Sweden