A RANGE OF SINGLE AND MULTIPLE PUMPSPump elements are available with displacements from 23 to 68 cm3/rev (1.4 to 4.15 in3/rev). The pumps will work at continuous pressures up to 250 bar (3625 psi), with peak pressures up to 280 bar (4060 psi)..Pumps can be supplied as single, double, triple or quadruple units.Specification:QX pumps use helical gears and are designed to reduce the amount of fluid borne noise generated by the pump and hence transmitted into the hydraulic system. This results in a reduction in the amount of airborne noise emitted from the machine, they are highly efficient and are designed to provide high performance levels and long life.