Flexible impeller

Animated image showing the operation of a flexible–impeller pump
Main article: Pump

A flexible impeller pump is a positive-displacement pump that, by deforming impeller vanes, draws the liquid into the pump housing and moves it to the discharge port with a constant flow rate. The flexibility of the vanes enables a tight seal to the internal housing, making the pump self-priming, while also permitting bi-directional operation. The output from these pumps tends to be smooth or gentle when compared to the operation of a reciprocating pump (for example). In 1938, Arthur M. Briggs filed a patent for this type of pump.[1]

Types

Uses

Particularly suitable for transfer of viscous, delicate, and slurry fluids even with high solid content. Widely used in the oenological field, food processing, chemical industry, cosmetic and marine field.

Materials

Pump housing can be made of high grade stainless steel, bronze for marine applications, or other materials.

The impeller can be made of:

A Flexible Impeller

The end face mechanical seal can be made of:

References

This article is issued from Wikipedia - version of the 9/19/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.