The customized EPDM oxygen O-ring is a circular ring, usually made of elastic rubber. Its dimensions are determined by the inner diameter d1 and the wire diameter d2. O-type rubber sealing ring is a kind of sealing element with a circular cross-sectional shape. It is widely used in various mechanical equipment and plays a sealing role in a certain temperature, pressure and different liquid or gas media.

　　Compared with other sealing rings, customized EPDM oxygen O-ring has the following superior properties:

　　①customized EPDM oxygen O-ring has simple structure, compact installation and light weight.

　　②It has a self-sealing effect, and often only one seal can be used to complete the sealing effect.

　　③ Good sealing performance, almost no leakage when used as a fixed seal, and some leakage only when the speed is high when used as a moving seal.

　　④Customized EPDM oxygen O-ring has very little frictional resistance, and can also adapt to the occasion of alternating pressure.

　　⑤The size and groove of customized EPDM oxygen O-ring have been standardized, the cost is low, the product is easy to obtain, and it is easy to use and purchase.

　　Compared with other sealing rings, customized EPDM oxygen O-ring also has the following three problems:

　　①The frictional resistance at the time of starting is large. ②When used as a seal for pneumatic devices, lubricating oil must be added to prevent wear. ③ The processing size and precision of coupling accessories, such as moving surfaces, grooves, gaps, etc., are very strict.