Question

Explain the situations in which you will use the following seals for the better performance.

Give reasons for each. Give example of each application

1) Rotating seal

2) Stationary seal

3) Double seal

4) Catridge seal

5) Split seals

Answer 1

Rotating seal is a type of seals in which spring loaded or movable face rotates with shaft. An rotating seal is used for exculding dirt, dust, water while keeping the lubricant in the rotatry shaft equipment. Examples are hydralic pump seals, power steering seals.

Stationary seal is a type of seal in which spring loaded or movable face doesnot rotates with shaft. This type of seals are used in non moving pump components such as O-ring, gaskets

Double seal is a type of seal which are designed to provide the maximum sealing safety. This are made to remove both fulid and gas leakage. This seal are recommended to use to prevent a hazardous product from reaching the atmosphere.

Catridge seal is type of seal which are pre set at the factory which consists of shaft sleeve and in a seal galnd consistituting single unit. This seals are designed for rapid installation.

Split seals is type of seal which have two equal halves which are secured as one unit on the seal shaft. This seals will allows you to install the seal with no dismantling of the pump. This seals are used with large shaft sizes and vertical shaft pumps.