Category Archives for Centrifugal Pumps Bearings-Seals-Wear-Rings

Wear Rings

These are easily renewable leakage seals between the impeller or shaft and casing designed to prevent leakage from high pressure to low pressure areas. They require a difference in hardness to avoid galling, and in sandy service a flushing fluid … Continue reading

12. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | Leave a comment

Seals

Seals are necessary to prevent leakage at the point where the shaft enters the pump case. The most inexpensive seal is made of packing material that acts as a pressure breakdown device. Packing must be flexible and capable of being … Continue reading

11. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | 1 comment

Bearings

Ball bearings transmit a load from a rotating surface to a fixed surface via a series of rotating balls. They are generally inexpensive, do not require any separate lubrication system, and can be designed to be selfaligning. However, they have … Continue reading

11. September 2009 by Jack
Categories: Centrifugal Pumps Bearings-Seals-Wear-Rings | Tags: | Leave a comment