SHAFT

A mechanical seal is a device designed to seal a rotating shaft against a stationary housing, e.g. a pump shaft against a pump casing. The stationary components will consists of a seal ring and (depending on the design) a spring-loaded element. The spring-loaded element can be a spring or a bellows. The seal ring is sealed against housing with secondary gasket, e.g. an O-ring. The rotating components will consist of a seal ring and (depending on the design) a spring-loaded element.

The spring-loaded element can be a spring or a bellows. The seal ring is sealed against the shaft with secondary gasket, e.g. an O-ring.

A mechanical seal can be supplied as a pre-assembled cartridge or in separate components.

Assembly is done in accordance with the assembly drawing.

A mechanical seal will run in the pumped product or external source fluid. To provide lubrication, a film of liquid must always be present between the seal faces. The sealing surfaces are separate from each other by the seal liquid film during shaft rotation and in principle operate without contact and thus minimal wear under these conditions.

sealing is provided on shaft to prevent oil/ lubricants/ medium from leaking out, preventing contaminated air to contaminate oil/lubricant/ medium or both.

Depending on the pressure / medium involved appropriate sealing arrangement can be designed.