Core structure composition

All parts of mechanical seal work together to ensure stable and reliable sealing effect:

Main seal: the rotating ring rotates synchronously with the pump shaft, and the stationary ring is fixed on the pump gland. The high-precision fitting end faces of the two are the core determining the sealing life

Elastic compensation parts: the spring and push ring provide stable axial force to ensure that the moving ring can still automatically compensate the fitting after being worn

Auxiliary seal: O-shaped/V-shaped sealing ring, sealing the clearance of all static sealing points to prevent the medium from leaking from the non-end face

Fix the transmission parts: spring seat, transmission pin and gland, complete the positioning and installation of components, and transmit torque to avoid relative sliding between the moving ring and shaft

Basic working principle

When the mechanical seal is in operation, the high-precision end faces of the moving ring and the stationary ring are closely fitted under the combined action of the spring preload and the fluid pressure in the pump. A very thin layer of lubricating liquid film will be formed between the end faces, which not only completely blocks the channel of the medium leaking outward, but also lubricates and cools the two opposite sliding end faces, and controls the friction and wear at a very low level.