A O ring, import wholesalers - Taiwan Asahi Meike seal
Imported rubber O ring due to different materials, product performance is also different.
1 nitrile rubber NBR material made of imported O type ring, its air tightness is good, has a very good oil resistance and wear resistance, NBR rubber is the most widely used products, also known as NBR O ring.
2) fluorine rubber (FKM or VITON) made of imported O shaped seal ring, is one of the most widely used sealing products. Because of its excellent properties, fluorine rubber is widely used in petroleum, chemical, aerospace and other departments. Fluorine rubber FPM has high temperature resistance, can be used in the environment of -40 ~240. Fluorine rubber VITON strong oxidation resistance, oil resistance, acid and alkali resistance, and fluorine rubber can be used in high vacuum and high altitude environment, but also suitable for oil environment.
3) silicone rubber has a very wide range of low temperature resistance and high temperature resistance (-60~250 C), sealing silicone sealing products are widely used in food, household appliances, lighting, medical equipment and other related industries, imported rubber O ring SIL imported O ring.
4) three yuan of ethylene propylene rubber has good ozone resistance, heat resistance and chemical resistance, and three yuan O ring also has good electrical insulation and hot water resistance.
 
Select two, import O ring wholesalers import O - ring seal compression ratio
General static seal compression rate: 10 "--'30%;
Low friction with the compression rate of: 1.5 ~ 6%;
High pressure, reciprocating compression rate: 4 ~ 16%;
The hydraulic seal compression rate is: 10 "---20%;
The compression ratio of the vacuum seal is: 40 "--45%;
Cryogenic low temperature compression rate: 70 ~ 85%.
                                                           
Three, the import of O type wholesalers - Measurement of O type circle diameter
More accurate, simple and practical method is to use the thickness gauge. The thickness of the rubber O ring will be compressed by measuring the thickness of the rubber, and the degree of deformation depends on the hardness and contact state of the rubber. For the measurement of radial and axial diameter is different.
It is proved that the influence of temperature can not be taken into account when measuring the section diameter. Range 0 ~ 10mm, the measurement error is not more than 0.025mm, the reading accuracy is 0.01mm