What is a Mechanical Seal?

- Aug 23, 2017-

A Mechanical seal is a leakage control device that is used or combining systems and mechanisms and for pressure control and also for preventing excluding contamination. Plumbing mechanism is a perfect example where Mechanical seal is used for preventing water leakage.

Mechanical Seals

A basic mechanical seal is not a complex device. It consists primarily of a rotary seal face with a driving mechanism which rotates at the same speed as the pump shaft, a stationary seal face which mates with the rotary and is retained using a gland or in some pump models an integral stuffing box cover, a tension assembly which keeps the rotary face firmly positioned against the stationary face to avoid leakage when the pump is not in operation, and static sealing gasket(s) and elastomers strategically located to complete the seal assembly.

Why use Mechanical Seals for your Pump?


Mechanical seals are engineered for most pumps, mixer and agitator applications in maintenance. In many cases the designs have been proven to be workhorses over years of use. In others seals must be designed for evolving industrial demands.


Rotating face units are the dependable mechanical seals answer for worn equipment when your shaft mechanical seals must be replaced. They are ideal for new equipment designs or to improve the usefulness of existing equipment by converting from pump packing to mechanical seals.

Contact Us:

Shaanxi DaoLin Mechanical & Electrical Co.,Ltd

Room1107, Building B, Sail Times Plaza, Hou Wei Zhai, Wei Yang 

District, 710085, Xi’an  City, Shaanxi Province, China

Tel.:+86(029)84523807-802 Fax: +86(029)84523807-808

Email: sales@inseals.com