The working conditions of rubber o-rings seals are different, such as heat resistance, oil resistance, chemical resistance and working conditions (static, dynamic, rotating, swinging, etc.), speed, working pressure, etc. Therefore, for o-type rubber seals used for mechanical seals, first of all, starting from the requirements of rubber use conditions or special conditions, and then comprehensively considering the vulcanization acceleration system, reinforcement filling system, softening system, and physical protection system.
The O-type rubber sealing compound generally used for mechanical seals must have good elasticity and low compression concentration to meet the special performance requirements of different O-type rubber sealing products. As a dynamic seal, the rubber material of the O-type rubber seal is also required to have a certain tensile strength, good wear resistance and tear resistance.
Whether it is an O-ring rubber seal, or the quality of the sealing life of the sealing ring and the rubber silicone ring, it depends on the dimensional accuracy and the rubber material. Generally, rubber materials are required to have certain mechanical strength, tear resistance, good heat resistance, oil resistance, chemical resistance, and compression setting size under use conditions, which is one of its main indicators. It can be customized according to the requirements of use. For example, O-type rubber seals generally require heat resistance and oil resistance, and nitrile rubber is more commonly used as the material.
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