25VQ12A 11C20 LH

The 25VQ12A 11C20 LH pump is part of the VQ Thru-Drive Vane Pumps series manufactured by Vickers for hydraulic automation where compact power density is required. It delivers 40.2 cm³ per revolution (2.45 in³/rev) so the circuit designer can predict volumetric output at any shaft speed. A SAE rated flow of 12 US gpm at 1200 r/min and 7 bar shows the pump’s typical delivery in low-pressure standby loops. Left-hand (counter-clockwise) rotation aligns the inlet and outlet with common engine or motor drives that turn in the same direction. SAE 4-bolt flanges are used for the ports, establishing a rigid, leak-resistant joint that fits standard hydraulic plumbing without adapters.

The maximum continuous pressure reaches 210 bar (3000 psi), allowing the unit to serve medium-pressure actuators such as cylinders or hydrostatic steering circuits. A permitted inlet pressure of 1.4 bar (20 psi) prevents seal damage from excessive boost, while the allowable inlet vacuum of 5 in Hg maintains suction stability during cold starts or high-altitude operation. The outlet is positioned in line with the inlet, identified as code C, which simplifies manifold design because both connectors lie on the same housing side. The pump weighs 14.5 kg (32 lb), so a single technician can install it on mobile machinery frames or industrial power units without lifting equipment.