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Gear pump in the hydraulic market is the external gear pump. It is popular because of the low weight and wide speed range at a relatively low cost. Internal gear pumps are used when high efficiency or low operating noise is of importance. A gear ring pump works with a stator and a rotor where planetary movement of the rotor results in flow. Screw pumps work with worm gears within the housing and possess an extremely low operating noise level.
Type of Gear Pumps
External gear pumpsInternal gear pumpGear ring pumpScrew spindle pumpGear pumps
Gear pumps
Vane pumps
Vane pumps
Hydraulic vane pump finds its use in die casting and injection moulding machines in industry, as well as in land and road construction machinery. The operating pressure of vane pumps does normally not exceed 180-210 bar. However, in specially designed vane pumps the operating pressure may go well over 200 bar and up to 300 bar. Parker Hannifin has Denison Vane Technology to provide us with the best solution in the market of fixed displacement balanced vane pumps.
Type of Vane Pumps
Vane pumps, variable displacementVane pumps, fixed displacementDenison vane pumps, singleDenison vane pumps, doubleDenison vane pumps, triple
Radial piston pumps
Radial piston pumps
Radial piston pumps are available in two different configurations. With eccentric cylinder block, the piston rotates within the rigid external ring. Eccentricity determines the stroke of the pistons. Or, with an eccentric shaft, the rotating eccentric shaft causes radially-oscillating piston movements to be produced. Most models have an odd number of pistons to reduce the flow pulsation.
Type of Piston Pumps
Axial piston pump, fixed displacementAxial piston pump, variable displacementRadial piston pump, fixed displacementRadial piston pump, variable displacementReport abuse