Product performance EPDM rubber o-ring imported: the import of EPDM rubber o-ring material of choice for its sealing performance and service life of great significance. Properties of materials directly affect the performance of the O-ring. In addition to the general requirements should have an outer ring material, O-ring must pay attention to the following conditions: (1) flexible and resilient; (2) the appropriate mechanical strength, including the expansion of strength, elongation and tear strength and the like. (3) stable in medium hard to become swollen, heat shrinkage effect (Joule effect) is small. (4) easy processing, and can maintain precise dimensions. (5) does not corrode the contact surface, do not pollute the media. Satisfying the above requirements the most suitable and most commonly used material is rubber, so most of the O-ring made of a rubber material. Imported varieties EPDM rubber o-rings a lot, but there are always new rubber varieties appear, design and selection, you should understand the characteristics of a variety of rubber and reasonable choice. Characteristic feature of imports of EPDM rubber o-rings: Technical data Pressure speed: Static occasions reciprocating speed of up to a maximum 0.5m / s when no ring, the maximum pressure is reached when 20mpa maximum rotational speed of up to 2.0m / s has a ring, The maximum attainable pressure 40mpa medium temperature: When there are special ring, the maximum pressure is reached 200mpa see "rubber seal material characteristics table" maximum dynamic pressure compression: When no ring, reciprocating up 5mpa static sealing: o 20% when the diameter of the ring ring, high pressure dynamic seals: 30% imported EPDM rubber o-rings range of applications o-ring diameter: O-ring is suitable for installation in various machinery and equipment, in the prescribed temperature, pressure, and various liquid and gaseous media, in stationary or moving state from the seal. On the machine, marine, automotive, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and a variety of instruments, large-scale application imports EPDM rubber o-rings the various types of sealing elements. O-ring is mainly used for static seals and reciprocating seals. For rotational movement of the seal when limited to low-speed rotary sealing device.