What are the classification forms of mechanical seals?

1. Push type mechanical seal and non-push type mechanical seal

Push type mechanical seal refers to the mechanical seal that the auxiliary seal is pushed along the shaft or shaft sleeve to compensate for the wear of the sealing surface. It usually refers to the spring pressure type mechanical seal.

Non - push type mechanical seals are used to assist seal mechanical seals fixed on the shaft, usually bellows mechanical seals.

2. Single spring mechanical seal and multi-spring mechanical seal

Single spring mechanical seal, simple structure, spring can also play a driving role, but the end specific pressure is not uniform, not suitable for high speed operation.

Multi-spring mechanical seal, complex structure, spring can not play a driving role, but the end face specific pressure uniform, suitable for high speed operation.In general, it is recommended to choose multi-spring mechanical seal.

3, built-in mechanical seal and external mechanical seal

Built-in mechanical seal: means that the mechanical seal is installed in the sealing cavity.

External mechanical seal: means that the mechanical seal is installed outside the sealing cavity.

4, rotary mechanical seal and static mechanical seal

Rotary mechanical seal refers to the compensation parts with the shaft rotation of the mechanical seal.

Static mechanical seal refers to the compensation parts do not rotate with the shaft mechanical seal.