Variable Displacement Pump A4VG - Group VH A/S

RE 92 003/05.03 | A4VG Mobile Hydraulics | Bosch Rexroth AG 45/52Filtration TypesVariation:Filtration in the pressure line of the auxiliarypump, with cold start valve and ports forexternal boost circuit filter, KDesign similar to variation D, however additionally with coldstart valve:– Port plate is equipped with cold start valve and thereforeprotects the pump from damage.The valve opens at flow resistance ∆p ≥ 6 bar.Port F e :Port F a :Filter inlet (at the cold start valve)Filter outletFilter arrangement _ separately in the pressure line (hose filter)Circuit diagram variation K (with cold start valve)Variation: Filtration in pressure line of the auxiliary pump,readily built-on filter, FFilter type ______________________________________ filter without bypassFilter element pore size (absolute) __________________________ 20 µmFilter material _____________________________________________ Glass fiberPressure capacity ____________________________________________ 100 barFilter arrangement _____________________________ connected to pumpPlease note:– Port plate is equipped with cold start valve and thereforeprotects the pump from damage.The valve opens at flow resistance ∆p ≥ 6 bar.Recommendation: with contamination indicator (variaton P, L, M)(differential pressure ∆p = 5 bar)Filter characteristicDifferential pressure/volumetric flow characteristics conformingto ISO 3968 (valid for new filter element).Dimensions variation K (with cold start valve)Differential pressure ∆p in bar100101sizes 71...901000 mm 2 /s30 mm 2 /ssizes 40...56sizes 40...56size 180size 125size 125size 180sizes 71...900,11050 100 200Flow in L/minCircuit diagram variation F (with filter assembly)SizeK1K2K3 F 1 e ) T max. )40 122,5 198,7 0 M18x1,5; 15 deep140 Nm56 125,5 215,4 0 M18x1,5; 15 deep140 Nm71 145,5 239,0 8 M26x1,5; 16 deep230 Nm90 139,5 248,5 24 M26x1,5; 16 deep230 Nm125 172,0 267,9 20 M33x2; 18 deep540 Nm180 173,0 311,9 3 M33x2; 18 deep540 Nm1 ) DIN 38522 ) tightening torque, max.