AS-RD1 dual cassette mechanical seal

Description:
AS-RD1 multiple spring mechanical seal  is customized double mechanical seal,  with  Kalrez o ring inside, and 3.983"special size. 

Background Knowledge:

Design of O-ring seal in mechanical seal

As an auxiliary seal of mechanical seal, sealing state of O-ring seal is between rotary face and stationary seat, and has a certain degree of particularity. In addition, there are no design parameters that can be used for reference. The factors that need to be considered when designing are material selection, compression rate, cross-sectional diameter, extrusion gap, sealing ring groove, and auxiliary sealing ring arrangement of compensation ring, etc. Among them, friction force generated by sealing ring cannot be ignored in the mechanical seal design, and calculation and review are required, otherwise the entire mechanical seal will fail.

In short, there are many non-linear and inter-related factors in sealing ring design. It is difficult to express clearly with a certain formula. Therefore,we must pay attention to accumulation of test data instead of being limited to design standards and manuals, and optimize design parameters through experiments to improve  performance and longevity of mechanical seal.