NOMINAL DISPLACEMENT:8.3 12.8 16 24 31 40 51.5mL/rRATED PRESSURE:14MPaMAXIMUM PRESSURE:14MPaRATED SPEED:1000-1800r/minSPEED RANGE:1000-1800r/minFluid recommendationsPremium quality hydraulic mineral oil fluids are recommend, like H-LP oils to DIN 51524, part 2.The viscosity range should be 25 to 50 mm2/s (cSt) at 50 0C.Normal operating viscosity range between 12 and 100mm2/s (cSt).Maximum start-up viscositiy is 800 mm2/s(cSt). Operating temperature -30 to + 70 0C.For other fluids such as phosphoric acid esters or forother operating conditions consult your Parker representative for assistance.SealsNBR (nitrile) seals are use for operation with hydraulic fluids based on mineral oil.For synthetic fluids, as perhaps phosphoric acid esters, Fluorocarbon seals arerequired.Consult your Parker representative for assistance.Drain lineThe drain line must lead directly to the reservoir without restriction.The drain line must not connect to any other return line.The end of the drain line must be below the lowest fluid level in the reservoir and as far away as possible from the pump inlet line.This ensures that the pump does not empty itself when not in operation and that hot aireat oil will not recirculat.For the same reason, when the pump is mount inside the reservoir, the drain line should arrang in such a way that a siphon is created.This ensures that the pump always fill with fluid.The drain pressure must not exceed 2 bar.Drain line length should not exceed 2 metres.Minimum diameter should select accordingto the port size and a straight low pressure fitting withmaximised bore should use.FiltrationFor maximum pump and system component functionabilityand life, the system should be protected from contamination by effective filtration.Fluid cleanliness should be in accordance with ISOclassification ISO 4406:1999. The quality of filter elements should be in accordance with ISO standards.Minimum requirement for filtration rate x (mm):General hydraulic systems for satisfactory operation:Class 20/18/15, to ISO 4406:1999Hydraulic systems with maximised component life andfunctionability:Class 18/16/13, to ISO 4406:1999It is recommended to use return line or pressure filters.Parker Filter Division offers a wide range of these filtersfor all common applications and mounting styles. The useof suction filters should be avoided, especially with fastresponse pumps. Bypass filtration is a good choice forbest filter efficiency.Installation and mountingHorizontal mounting: Outlet port side or top. Inlet port sideor bottom, drain port always uppermost.Vertical mounting: Shaft pointing upwards.Install pump and suction line in such a way that themaximum inlet pressure never exceeds 0.8 bar absolute.The inlet line should be as short and as straight aspossible. A short suction line cut to 450is recommendedwhen the pump is mounted inside the reservoir, to improve the inlet conditions. All connections to be leak-free,as air in the suction line will cause cavitation, noise, anddamage to the pump.Drain portCompensation may cause short-term (20 to 30 ms) flowincrease, e.g. 30 l/min (PV 016 to 023), 40 l/min (PV 032to 046), 60 l/min (PV 063 to 092),80 l/min (PV 140 to 180)and/or 120 l/min (PV270). Please consider for dimensioning.Shaft rotation and alignmentPump and motor shafts must be aligned within 0.25mmT.I.R. maximum. A floating coupling must be used.Bellhousings and couplings can be ordered at manufacturers listed in this catalogue. Please follow the couplingmanufacturer's installation instructions. Consult yourParker representative for assistance on radial load typedrives.Start upPrior to start up, the pump case must be filled withhydraulic fluid (use case drain port). Initial start up shouldbe at zero pressure with an open circuit to enable thepump to prime. Pressure should only be increased oncethe pump has been fully primed.Attention: Check motor rotation direction.For more details see PVS pump installation manualPVS50EH140C2PVS08AZ140PVS08EH140PVS12AZ140PVS12AZ140C2PVS12EH140PVS12EH140C2PVS16AZ140PVS16AZ140C2PVS16EH140PVS16EH140C2PVS16EH140C2ZPVS16EH140ZPVS25AZ140PVS25AZ140C2PVS25EH140PVS25EH140C2PVS25EH140C2ZPVS25EH140C2ZPVS32AZ140PVS32AZ140C2PVS32EH140PVS32EH140C2PVS32EH140C2ZPVS32EH140ZPVS40AZ140PVS40EH140