25VS21A 297D22L

The 25VS21A 297D22L hydraulic pump belongs to the Vane Pumps series and is manufactured by Vickers. It is intended for fixed-displacement supply circuits where consistent flow is required in automated hydraulic machinery. The unit provides a displacement of 67 cm³ per revolution to deliver predictable volume at the specified operating speed. Shaft rotation is left-handed, a feature that must match system plumbing and motor orientation. The pump can start safely at a minimum speed of 1800 rpm and withstands a maximum working pressure of 172 bar, making it suitable for medium-pressure industrial lines. Flow is sealed by Buna-N elements that resist common hydraulic oils. The housing and rotor are cast iron to maximize wear resistance under continuous duty. For line routing, the outlet port on the cover end sits 90° clockwise from the inlet, simplifying right-angle manifold layouts.

Overall dimensions help assess mounting clearances and reservoir sizing. The pump measures 8.88 in in length, 6.88 in in width, and 5.5 in in height, enclosing a product volume of 336.019 in³ within the power unit. Its bare weight is 33 lb, so a single technician can handle installation with standard lifting aids. Internally, ring size 21 defines the cam ring thickness that guides vane travel, while design code 22 identifies the exact configuration of internal parts and port geometry for service ordering. These dimensional and identification details allow maintenance staff to stock matching components and seals without ambiguity. The shape, mass, and coded build therefore integrate the 25VS21A 297D22L smoothly into compact machine frames and standardized hydraulic manifolds used in automated production cells.