Sealing ring performance

In addition to the general requirements of sealing ring materials, the sealing ring should also pay attention to the following conditions:

(1) elastic and resilient;

(2) Appropriate mechanical strength, including expansion strength, elongation and tear strength, etc.

(3) Stable performance, not easy to swell in the medium, the thermal contraction effect (Joule effect) is small.

(4) Easy to process and shape, and can maintain the precise size.

(5) no corrosion of the contact surface, no pollution of the medium, etc.

The most suitable and commonly used material to meet the above requirements is rubber, so the sealing ring is mostly made of rubber material. There are many varieties of rubber, and there are constantly new varieties of rubber, design and selection, should understand the characteristics of various rubber, reasonable selection.