The pump combination V3 + V3 is composed of two vari- able displacement vane pumps. The front pump is flange or subplate mounted. Both pumps are driven from one common shaft. Their delivery flow var-ies from Q = 0 to Q max as required by the user. Varia- ble flow displacement is gained by means of the pressure compen-sator. Because of this, loss of power in the circuit is kept to a minimum. For further details on the individual pumps see the data cards of pumps V3.