The working principle of a cam pump

Lobe pump – a positive displacement pump. The product is transferred by means of lobes between the walls of the working chamber and the lobes.

The lobes can have different shapes depending on the pumped product, its density, and viscosity.

Working principle of a lobe pump

Features of the lobe pump:

  • during rotation, the lobes do not come into contact

Unlike a gear pump, where the driving gear transmits torque to the driven gear through direct contact, a minimal clearance is always maintained between the lobes and the casing.

Working principle of a lobe pump

Thanks to this feature, the pump operates quietly, and the pumping process is smooth without damaging the product.

  • the lobe pump operates at low speeds – from 200 to 500 rpm.

The low operating speed ensures no pulsation, does not foam the product (detergents, dairy products, various types of oils), and significantly increases the service life of bearings and mechanical seals.

  • can pump hot products at temperatures up to 150℃

Thanks to the special design of the mechanical seal, as well as its placement outside the working chamber, this type of pump can handle hot products with various inclusions.