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rotary oil pump


Rotary Pump | 2 Types Of Positive Displacement Pump | Two Stage Rotary Vane Vacuum Pump

A rotary pump is a positive displacement pump, which means it pumps a fixed amount of liquid after each revolution and is mostly used to treat viscous fluids. Regardless of the resistance against which the pump is pushing, a fixed amount of fluid is pushed with each revolution of the pump. It self-primes and maintains a nearly constant delivery power independent of pressure.
1. Gear type pump; external gear pump internal gear pump
2. Vane-type pump
3. Screw pump
4. Lobular pump
5. Cam and piston pumps

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