Pumps with Integral Valves

How to Choose a Vane Pump with Integral Valves

Match the replacement to the original on the mechanical and hydraulic specs that govern fit and performance. The figures below are typical for this class of pump; confirm them against your nameplate or the OEM print before ordering.

• Displacement (CID / GPM): The volume moved per revolution, which together with drive speed sets output flow. Match it to the original so the integral valve settings stay correct.
• Maximum pressure (PSI): The continuous and peak rating the housing and cartridge are built to handle, and the range the integral relief or compensator is set within.
• Rotation: Clockwise or counter-clockwise viewed from the shaft end. Rotation is generally not field-reversible on vane cartridges, so verify before ordering.
• Mount: Foot, flange, or SAE bolt pattern that ties the pump to the motor or power unit.
• Shaft: Keyed, splined, or tapered profile and diameter that engages the coupling or drive.
• Port: Inlet and outlet thread or flange type and size, plus any case-drain or valve-adjustment ports.

Which Vane Pump Is Right for the Job?

An integral-valve pump makes sense when you want valving consolidated into the pump housing to save space and reduce external connections. If your circuit already has separate valving, a plain Single Stage Vane Pumps unit may be the simpler match. When you are replacing a Vickers-style unit specifically, compare against the Vickers Replacement Pumps range, where model-for-model interchanges are common. If only the cartridge or seals have worn, Vane Pump Components can rebuild a serviceable housing rather than replace the whole pump. To see the full lineup, browse all Hydraulic Vane Pumps.

Complete the System

A vane pump runs cleaner and lasts longer when the rest of the circuit is matched to it. Size the Hydraulic Reservoir Tanks for adequate fluid volume and heat dissipation, and protect the cartridge with proper Hydraulic Filters on the suction or return line. On the work side, pair the pump with the right Hydraulic Motors for your output requirements, and use Quick Couplers where lines are connected and disconnected in service.

Cross-Referencing an Obsolete Vane Pump with Integral Valves

Northern Hydraulics has cross-referenced obsolete and discontinued vane pumps since 1963, and integral-valve units are often the hardest to source because the valve configuration has to match along with the cartridge. If your nameplate is worn or the original model is no longer made, send the displacement, pressure, rotation, mount, shaft, and port details along with any markings you can read, and we will identify a current interchange. To get started, request a cross-reference.