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You are here : Common-sense issues mechanical seals
Mechanical seals are precision, the structure is more complex component of the mechanical basis, a variety of pumps, reaction
Reactor, turbine compressor, submersible motors and other equipment of the key components. The sealing performance and service life depends on many due to
Factors, such as the selection, the machine precision, the correct installation and so on.
First, the selection method
Mechanical seal according to the nature of working conditions and the different media, with high temperature, low temperature mechanical seal, high pressure,
Corrosion-resistant mechanical seals, mechanical seals resistant granular media and adapt to the volatile medium of light hydrocarbons such as mechanical seals, should be
Select a different use depending on structure type and material of the mechanical seal.
Selection of the main parameters are: sealed chamber pressure (MPA), fluid temperature (¡æ), working speed (M / S), flow
Properties of an effective seal and installation space.
The basic principle of selection:
1. Under the seal chamber pressure to determine the sealing structure using balanced or unbalanced, single face or double face
And so on.
2. According to operating speed, determine the use of rotary or static, fluid dynamic pressure type non-contact type.
3. According to temperature and fluid properties, determine the friction and secondary sealing material, as well as the right choice lubrication, impulse
Washing, heat, cooling and other mechanical seal loop protection system.
4. Effectively sealed the installation space, determine the use of a single spring or multiple springs or wave springs,
Reactor, turbine compressor, submersible motors and other equipment of the key components. The sealing performance and service life depends on many due to
Factors, such as the selection, the machine precision, the correct installation and so on.
First, the selection method
Mechanical seal according to the nature of working conditions and the different media, with high temperature, low temperature mechanical seal, high pressure,
Corrosion-resistant mechanical seals, mechanical seals resistant granular media and adapt to the volatile medium of light hydrocarbons such as mechanical seals, should be
Select a different use depending on structure type and material of the mechanical seal.
Selection of the main parameters are: sealed chamber pressure (MPA), fluid temperature (¡æ), working speed (M / S), flow
Properties of an effective seal and installation space.
The basic principle of selection:
1. Under the seal chamber pressure to determine the sealing structure using balanced or unbalanced, single face or double face
And so on.
2. According to operating speed, determine the use of rotary or static, fluid dynamic pressure type non-contact type.
3. According to temperature and fluid properties, determine the friction and secondary sealing material, as well as the right choice lubrication, impulse
Washing, heat, cooling and other mechanical seal loop protection system.
4. Effectively sealed the installation space, determine the use of a single spring or multiple springs or wave springs,
