What kinds of bellows mechanical seals are there?

Bellows is a sealing element that integrates elastic elements, auxiliary seals and torque transmission mechanisms (ordinary seals do not have this kinetic energy), and its torque mode is unique to bellows mechanical seals. In the application, due to the different requirements of each field, there are many types of it.

Bellows mechanical seals can be used in a wide range of applications, from low temperature to high temperature, from neutral media to corrosive media, from low speed to high speed, and from ordinary to harsh working conditions. Bellows include rubber bellows and serpentine sleeves, plastic bellows and metal bellows. Rubber bellows and serpentine sleeves are used for low-load mechanical seals as auxiliary seals; plastic bellows are used for mechanical seals in strong corrosive media as auxiliary seals; metal bellows are used for mechanical seals of high temperature, high pressure and low temperature media, which can be used as auxiliary seals. Can be used as elastic element.

Metal bellows should have greater elasticity, strength and stiffness. It can be used in occasions where the pressure reaches 7Mpa, suitable for high and low temperature operations, temperature resistance -240 ° C ~ +650 ° C, and film thickness is not greater than (<0.4mm), which determines the requirement of corrugated pipe material with high corrosion resistance, and used in medium sexual medium.

Since the bellows has a variety of materials, there are also multiple types of bellows mechanical seals, which can meet different needs.