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Axial Piston Variable Pump A7VO - Group VH A/S

Axial Piston Variable Pump A7VO - Group VH A/S

Axial Piston Variable Pump A7VO - Group VH A/S

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Blocked for new applications / Für Neuanwendung gesperrtRE 92 202/03.06 <strong>A7VO</strong> Bosch Rexroth AG 5/32Technical DataTable of values (theoretical values, ignoring η mh and η v ; values rounded)Size 28 55 80 107 160Displacement V g max cm 3 28,1 54,8 80 107 160Speed max. 1 ) at V g max n max1 rpm 3150 2500 2240 2150 1900at V g < 0,74 • V g max (see diagram, page 4) n max2 rpm 4250 3400 3000 2900 2560Speed max. 2 ) n max perm. rpm 4750 3750 3350 3200 2850Flow at n max1 and V g max q v max1 L/min 89 137 179 230 304Power at q v max1 and Δp = 350 bar P max1 kW 52 80 105 134 177Torque at V g max and Δp = 350 bar T max Nm 156 305 446 596 891Mass moment of inertia (of the rotating parts) J kgm 2 0,0042 0,0042 0,0080 0,0127 0,0253Filling capacity V L 0,5 0,75 1,2 1,5 2,4Mass (approx.) m kg 17 25 40 49 711 ) The values shown are valid for an absolute pressure (p abs ) of 1 bar at the suction port S and when operated on mineral fluid with aspecific mass of 0,88 kg/L.2 ) Maximum speed (speed limit) for an increase in the inlet pressure p abs at the suction port S and V g < V g maxDetermining the sizeFlow q v =Torque T =Power P =V g • n • η v1000V g • Δp20 • π • η mh2 π • T • n=q v • Δp60000 600 • η tL/minNmkWV g = Displacement per revolution in cm 3Δp = Differential pressure in barn = Speed in rpmη v = Volumetric efficiencyη mh = Mechanical-hydraulic efficiencyη t= Overall efficiency

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