Determine the type of shaft seal

Determine the type of shaft seal

The shaft seal is a sealing device to prevent the leakage of the pump shaft and the housing.Commonly used shaft seal types are packing seal, mechanical seal and power seal.

The shaft seal of a reciprocating pump is usually a packing seal.When conveying does not allow leakage medium, diaphragm type reciprocating pump can be used.The shaft seal of rotary pump (including vane pump, rotor pump, etc.) mainly includes packing seal, mechanical seal and power seal.

1. Packing seal

Packing seal has the advantages of simple structure, cheap price and convenient maintenance, but large leakage and loss of power consumption.Therefore, the packing seal is used to transport general media, such as water;Generally not suitable for petroleum and chemical media, especially can not be used in valuable, explosive and toxic media.

The company uses packing seal products are: DL, S, IS, IH, TSWA, D, DG, DA, GC

2. Mechanical seal

Mechanical seal (also known as end seal) sealing effect is good, leakage is small, long life, but the price is expensive, processing, installation and maintenance than the general sealing requirements.

Mechanical seals are suitable for conveying petroleum and chemical media, and can be used for media with different viscosity, strong corrosion and particles.

The company uses mechanical seal products are: in addition to the above products other products.