Selection of pump seal rubber ring materials
The sealing ring materials include NBR nitrile rubber sealing ring, HNBR hydrogenated nitrile rubber sealing ring, SIL silicone rubber sealing ring, VITON fluorine rubber sealing ring, FLS fluorosilicone rubber sealing ring, EPDM ethylene propylene diene rubber sealing ring, CR chlorine Butyl rubber sealing ring, IIR butyl rubber sealing ring.
The sealing ring is an axially acting elastic rubber sealing ring used as a pressureless seal on the rotating shaft. When selecting a sealing ring, in addition to the general requirements for sealing ring materials, the sealing ring must be elastic and resilient, and must have appropriate mechanical strength, including expansion strength, elongation, and tear resistance. The performance of the sealing ring must also be stable, not easy to swell in the medium, have a small thermal shrinkage effect, be easy to process and form, and maintain precise dimensions. The sealing ring must not corrode the contact surface or pollute the medium.
