Vane Pump

A side thrust is made on the rotor shaft due to the difference in pressure between the inlet and outlet port. Due to the sides thrust on the rotor shafts, the bearing's life is reduced. Due to the pressure difference in the inlet and outlet port, this vane pump is called an unbalanced vane pump.

Directional control valves (DCVs) are one of the most fundamental parts of hydraulic and pneumatic systems. DCVs allow fluid flow (hydraulic oil, water or air) into different paths from one or more sources. DCVs will usually consist of a spool inside a cylinder which is mechanically or electrically actuated.