25VQTBPS14A 2297AA 20R

The 25VQTBPS14A 2297AA 20R pump belongs to the VQ Thru-Drive Vane Pumps series and is manufactured by Vickers for hydraulic automation systems where a single prime mover must drive several hydraulic loads. Its geometric displacement is 45.4 cm³ per revolution, which sets the theoretical volume moved each shaft turn and establishes baseline flow calculations. A maximum operating pressure of 210 bar allows the unit to serve medium-pressure circuits common in mobile and industrial machinery. When driven at maximum speed it supplies a typical flow of 103.8 L/min, enabling actuators to cycle quickly under full load. Reaching this flow requires 46.6 kW of input power, so prime movers must be sized accordingly to avoid stalling. Clockwise rotation is specified, ensuring the internal cam ring and vane set operate with correct loading when coupled to standard right-hand engines or motors. The flange mount with a double shaft seal provides positive location and limits external leakage. A BP thru-drive adapter, sized as an SAE B spacer for PVE12/19/21 pumps, lets a secondary pump bolt directly behind this unit without additional brackets.

Adapter orientation A keeps the spacer in line with the No. 2 outlet so auxiliary pumps align with downstream pipework. The main outlet is also coded A, placing it opposite the inlet to simplify hose routing on compact power units. A 297-splined input shaft transfers torque without key stress concentrations, while an SAE B 13-tooth 16⁄32 DP output coupling spline passes residual torque to the downstream pump on the thru-drive. SAE four-bolt flange ports give a common hydraulic interface that speeds assembly and service across global facilities. The rear mount dimension of 261.9 mm defines the clearance needed inside a power-take-off housing or frame plate. Finally, a weight of 19.5 kg helps planners determine lifting requirements and bracket strength for safe installation.