30VQ28A 1A20

The 30VQ28A 1A20 vane pump belongs to the Vane Pumps series from Vickers and delivers controlled fluid flow for hydraulic automation circuits such as presses, machine tools, and mobile equipment. Design code 20 identifies the internal configuration used to match this pump with complementary cartridges in the same product family. A ring size of 28 determines the displacement chamber geometry and resulting flow rate. The housing is cast iron to provide wear resistance under high inlet vacuum and discharge pressures. Total internal volume measures 309.684 in³, defining the cavity space available for rotor and vane movement. Overall length is 9.75 in, width is 6.875 in, and height is 4.62 in, so the unit fits compactly inside standard power pack frames without requiring additional spacers or brackets.

Net weight of the 30VQ28A 1A20 is 32 lb, allowing a single technician to position the pump during assembly while still offering sufficient mass for vibration damping. The shaft rotates to the right, making it compatible with engines or electric motors that supply clockwise drive from the coupling end. A single shaft seal prevents external leakage along the drive shaft and simplifies maintenance schedules compared with tandem seal arrangements. Fluid exits on the side opposite the inlet, which simplifies manifold layouts that demand straight-through flow paths. SAE four-bolt flanges are used for both ports to provide secure, repeatable connections to high-pressure hoses or rigid lines. Buna-N is selected for the internal static seals to achieve reliable compatibility with standard petroleum-based hydraulic oils while maintaining flexibility over typical operating temperature ranges.