... SPV22 SPV23 SPV24 And Concrete Mixer Eaton ACA Heavy Duty Variable Pump Our factory produce Concrete Mixer Sauer PV, SPV Hydraulic ... the excavator, compactor, paver, etc.Sauer PV series Axial piston variable displacement pumps, Series 20, are of swash plates construction with ... . The Flow rate is proportional to the pump´s driven speed and displacement, which, in turn, is determined by the swash ...