Mechanical seal for kettle Manufacturer's installation

Multi stage pump mechanical seal installation:

1. Sealing form: for static seal, there are usually only two forms: gasket and sealing ring, and O-ring is the most widely used sealing ring;

For dynamic seals, centrifugal pumps rarely use packing seals, mainly mechanical seals. Mechanical seals can be divided into single end and double end, balanced type and unbalanced type. The balanced type is applicable to the seals of high-pressure media (usually the pressure is greater than 1.0MPA); The double end mechanical seal is mainly used for media with high temperature, easy crystallization, viscosity, particles and toxic volatilization. The double end mechanical seal should inject spacer into the seal chamber, and its pressure is generally 0.07~0.1MPA higher than the media pressure.

2. Sealing material: the static sealing material of multistage centrifugal pump is generally fluororubber, and polytetrafluoro material is only used in special cases; The material configuration of the dynamic and static rings of mechanical seals is more critical, and hard alloy is not the best for hard alloy. On the one hand, the price is high, and there is no hardness difference between the two is not reasonable, so it is best to treat them differently according to the characteristics of the media.