Variable Displacement Pump A4VG - Group VH A/S

44/52 Bosch Rexroth AG | Mobile Hydraulics A4VG | RE 92 003/05.03Filtration TypesStandard: Filtration in the suction line of the auxiliary pump, SStandard model (preferred)Filter type: __________________________ filter without bypassRecommendation: _____________ with contamination indicatorThrough flow resistance at the filter element:at ν = 30 mm 2 /s, n = n max ___________________ ∆p ≤ 0,1 barat ν = 1000 mm 2 /s, n = n max ________________ ∆p ≤ 0,3 barPressure at port S of the auxiliary pump:at ν = 30 mm 2 /s ___________________________ p ≥ 0,8 barat cold start (ν = 1600 mm 2 /s, n ≤ 1000 rpm) ___ p ≥ 0,5 barCircuit diagram standard SVariation: Filtration in the pressure line of the auxiliarypump, ports for external boost circuit filter, DPort F e : Filter inletPort F a : Filter outletFilter type: Filter with bypass are not recommended.When applying with bypass please consult us.Recommendation: with contamination indicatorPlease note:For DG control device (with control pressure not from theboost circuit) use the following filter type:filter with bypass and with contamination indicatorFilter arrangement: __ separately in the pressure line (line filter)Flow resistance at filter element:at ν = 30 mm 2 /s _________________________________________ ∆p ≤ 1 barat cold start ______________________________________________ ∆p ≤ 3 bar(valid for entire speed range n min – n max )Circuit diagram variation DVariation: external supply, EFor models without integral auxiliary pump (N00 or K..).Connection S is closed.Supply comes from connection F a .Filter arrangement: ___________________________ separatelyFor safe operation ensure required purity grade for the boostpressure fluid at connection F a (see page 5).Circuit diagram variation E (external supply)