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 based on different Select a different type of useful structure and the mechanical seal.

 Selection of the main parameters are: sealed chamber pressure (MPA), fluid temperature (¡æ), working speed (M / S), fluid properties and the effective installation of closed space.

 The basic principle of selection:
 1, according to sealed pressure chamber to determine the sealing structure using balanced or unbalanced, single face or double face, etc.;
 2, according to operating speed, determine the use of rotary or static, fluid dynamic pressure type non-contact type;
 3, according to the temperature and fluid properties, determine the friction and auxiliary sealing materials, and correct choice of lubrication, washing, heat, cooling and other mechanical seal loop protection system;
 4, according to the effective installation of closed space, determined by a single spring or multiple springs or wave springs, built-in or externally mounted.