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Introduction Of The Valve Seat
- Aug 18, 2018 -

Bubble tight seal is obtained by using elastic sealing material and small actuator thrust, compression seat seal stress causes material to elastically deform and squeeze into the rough surface of the supplied metal parts to block all leakage paths.The permeability of the material is the basis for small leakage to the fluid.

Materials that are too soft, or that undergo cold deformation (creep) under load, may be stiffened by packing, such as fiberglass.If used to make thin sheets, can still meet the requirements of use, can eliminate cold deformation or permanent deformation.

The seal must be carefully secured to prevent rupture and leakage due to differential pressure.Soft seat bonding to metal parts is a solution, but it does not solve the problem completely, as the binding breaks and fails when subjected to thermal shock.High enough pressure will break the bond.