PVQ20B2RSE1S20C2111

The PVQ20B2RSE1S20C2111 piston pump is part of the PVQ Piston Pumps series and is produced by Vickers for use in hydraulic automation circuits that need compact, fixed-displacement flow. Design number 20 marks the engineering revision and aligns the unit with the latest internal component tolerances. A displacement of 21.1 cm³ per revolution sets the basic volume moved during each shaft turn, while the rated speed of 1800 rpm defines the normal operating point for drive sizing. At that speed the pump supplies 38 L/min, providing steady flow for medium-duty actuators and valves. The pressure compensator is preset to 210 bar, so outlet pressure is limited to protect downstream components from overload. Maximum output at this pressure demands 14.9 kW from the prime mover, allowing engineers to match an electric motor or engine accurately. Right-hand (clockwise) rotation must be maintained to ensure correct internal port timing and bearing lubrication.

The unit weighs 14 kg (31 lb), a value that aids single-person handling during installation and service. Inlet pressure can reach 2 bar without causing cavitation, supporting flooded-suction reservoir layouts, while case pressure is restricted to 0.35 bar to prevent shaft seal distortion. An SAE J744 101-2 (SAE B) mounting flange positions the housing on standard pump pads, and a rear SAE O-ring port with 1.625 in inlet and outlet connections promotes leak-free assembly in rigid piping runs. Buna-N seal material is used throughout, offering compatibility with most petroleum-based hydraulic fluids and moderate temperature ranges. There is no thru-drive provision, so the pump cannot be piggy-backed with another unit; this simplifies alignment but requires separate drive adapters if multiple pumps are needed in the same system.