Internal gear pumps are primarily used in non-mobile hydraulics (e.g. machines for plastics and machine tools, presses, etc.) and in vehicles that operate in an enclosed space (electric fork-lifts, etc.). The internal gear pump is exceptionally versatile and also capable of handling thick fluids.
In an internal gear pump, the gear rotor is connected to the drive. When the gear rotor and internal gear rotate, volume is created between the gear ring profiles, housing walls and filling piece. The space between the gear tooth profiles increases relatively slowly over an angle of about 120°. This causes operation to be exceptionally quiet with a constant flow.
Typical Applications:
Handling of fuel oil, & polymers, asphalt & bitumen, food products, Grease etc.
Salient features:
Smooth quite flow,
Reversibility,
Excellent self priming.,
Bracket/ Gear box mounting allows free expansion/ contraction -alignment not affected.
Insensitive to viscosities,
Easy maintenance,
All metal construction, no contamination
Built-in reducer offers ideal speed range 240~960 RPM,
Single sealing, external bearing
Slow speeds ensure better pumping & longer life,
Low noise and pulsation,
Reduced maintenance.