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Versatility, power, compactness and low running costs are
the main characteristics of vane pumps from
jbj Techniques Limited
All the components subject to wear are contained in a cartridge unit that can be easily
removed for inspection and/or replacement without disconnecting the pump from the
circuit, drastically reducing expensivemachine down time.
The cartridge contains a rotor, vanes and inserts, a cam ring and two covers.
During operation the rotor is driven by a splined shaft coupled to the drive unit. As the
rotation speed increases, centrifugal forces, in combination with the pressure
generated behind the vanes, push the vanes outwards, where they follow the profile of
the cam of the ring with a sufficient contact pressure to ensure adequate hydraulic
sealing. The two opposed pumping chambers formed by the elliptical profile of the cam
cancel out radial loads on the shaft bearings, thereby giving them extremely long
lifetimes.
The versatility of the BV series pumps enables them to meet the requirements of the
most varied industrial applications. In fact, as well as their proven high reliability and
excellent volumetric efficiency in all working conditions, they operate with particularly
low noise levels. This is made possible by the special profile of the cam ring and the use
of a 12 vane rotor that reduces the amplitude of the supply pressure pulses, thereby
reducing induced vibrations.