Variable Displacement Pump A10VSO - Group VH A/S

RE 92 711/03.00Installation NotesOptional installation position. The pump housing must be filled withfluid during commissioning and remain full when operating.In order to attain the lowest noise level, all connections (suction,pressure, case drain ports) must be linked by flexible couplings totank.Avoid placing a check valve in the case drain line.This may, however, be permissible in individual cases, after consultationwith us.1. Vertical installation (shaft end upwards)The following installation conditions must be taken into account:1.1. Arrangement in the reservoirBefore installation fill pump housing, keeping it in a horizontal position.a) If the minimum fluid level is equal to or above the pump mountingface close port “L”plugged, leave ports"L 1" and “S” open; L 1pipedand recommendation S piped (see Fig.1).b) If the minimum fluid level is below the pump mounting face pipeport “L 1” and “S” according to Fig. 2.Close port "L" with respect taking into consideration conditions in 1.2.1.Fluid2. Horizontal installationThe pump must be installed, so that "L" or "L 1" is at the top.2.1. Arrangement in the reservoira) If the minimum fluid level is above the top of the pump, port"L 1" closed, "L" and “S” should remain open, L piped andrecommendation S piped (see Fig. 3)b) If the minimum fluid level is equal to or below the top of thepump, pipe ports "L" and possibly "S" as Fig. 4.; close port "L 1".The conditions according to item 1.2.1.LL 1Fluidmin. 200 mmSh t minFig. 3Fig. 11.2. Arrangement outside the reservoirBefore installation fill the pump housing, keeping it in a horizontalposition. For mounting above reservoir see Fig. 2.Limiting condition:1.2.1. Minimum pump inlet pressure p abs min= 0.8 bar under bothstatic and dynamic conditions.Note: Avoid mounting above reservoir wherever possible in order toachieve a low noise level.The permissible suction height h comes from the overall pressureloss, but may not be bigger than h max= 800 mm (immersion depthh t min= 200 mm).h t minh maxL 1SL 1min. 200 mmOverall pressure loss ∆p tot= ∆p 1+ ∆p 2+ ∆p 3≤ (1 – p abs min) = 0.2 bar∆p 1: Pressure loss in pipe due to accelerating column of fluidρ • l • dv∆p 1= • 10 –5 (bar)dt ρ = density (kg/m 3 )l = pipe lenght (m)dv/dt = rate of changein fluid velocity (m/s 2 )∆p 2: Pressure loss due to static head∆p 2= h • ρ • g • 10 –5 (bar)∆p 3: Line losses (elbows etc.)SBaffleLFluidLh = height (m)ρ = density (kg/m 3 )g = gravity = 9.81 m/s 2Fig. 22.2. Installation outside the reservoirFill the pump housing before commissioning.Pipe ports "S" and the higher port "L" or "L 1".a) When mounting above the reservoir, see Fig. 4.Conditions according to 1.2.1.LL 1b) Mounting below the reservoirPipe ports "L 1" and “S” according to Fig.5, close port "L".BaffleBaffleL 1FluidFluidLh maxh t minh t minSSFig. 4Fig. 5Brueninghaus Hydromatik 6/40 A10VSO