A, EPDM import O-ring (resistance to acid and alkali and water vapor O-ring O-ring)
The sealing material used, excellent resistance to acid and alkali, Taiwan Asahi Meike seal XOK devaluation EPDM three epdm. The limit temperature is -40~150 C, and the recommended temperature is -20~130 C. Three EPR is composed of chemically stable saturated hydrocarbons and contains only unsaturated double bonds in the side chain, so it has excellent resistance to ozone, heat resistance and aging resistance, and has good resistance to chemicals and water vapor. It can be widely used in building materials, such as waterproof material, wire and cable jacket, heat-resistant rubber hose, adhesive tape, automobile seal and other products. EPDM is essentially non-polar, resistant to polar solutions and chemicals, and has good insulation properties. Such as EPDM three EPDM O-ring in the following situations can be used normally:
1) at normal temperature or 100 C, the concentration of sodium hydroxide is 50%;
2) at normal temperature, the concentration of acid elimination was 10%.
3) the concentration of hydrochloric acid, 10% or 30%;
4) at normal temperature, the concentration of flow acid is 10%;
5) at normal temperature or 100 C, the concentration of phosphoric acid is 85%.
Two, EPDM import O-ring seals - Taiwan brand XOK
The overall impression of Taiwan brand seals is that the product is of high precision and stable quality, but the price is not too high and practical. After years of development, Taiwan Asahi seal has formed a comprehensive manufacturer with many varieties, many specifications, large spot quantity and can make various rubber sealing miscellaneous parts according to the special requirements of the customers. The standards for sealing products are: French standard, German standard, Japanese standard, American Standard, China national standard and so on. The diameter of the imported O ring can be produced from 0.3~20, and the inner diameter can be customized from 0.6~2200. The material of the sealing ring is all made of famous brands such as the United States, Japan and Germany. For example, perfluorobutadiene rubber FFKM, fluoroadhesive FPM/FKM/VITON, polyurethane PU, butadiene rubber NBR, three yuan ethylene propylene rubber EPDM, hydrogenated butadiene rubber HNBR, silica gel SIL, etc. The temperature range varies from -60~250 C to material. Moreover, the products have outstanding performance in ozone resistance, high and low temperature resistance, strong acid resistance, strong alkali resistance, wear resistance and anti-aging. All products comply with RoHS, UL and other certification.
Three, EPDM import O-ring can be applied to the extent to which
1/ is suitable for all places which are basically sealed for industry, such as automobile, ship, motor, machine tool, machine, flying sky, sanitary ware, electronic appliance, medical machinery, food machinery, mining machinery, agricultural machinery, precision instrument and instrument, etc.
2/ is installed in different liquid and gas medium on various mechanical devices, and can be divided into static and dynamic sealing.
3/ O-ring, in addition to what we all know, is a wide range of seals used in hydraulic and pneumatic transmission systems, and it has a role, that is, the effect of shock absorption is also becoming more and more widely used. It can be applied to all kinds of places which are wearable, oil resistant, high temperature resistant, high pressure resistant, chemical resistant and strong acid resistant.
The 4/ rubber O-ring is usually installed in a groove with a rectangular cross section in the outer circle or inner circle, which plays a role of sealing. Normally used for static and reciprocating seals, and of course rotary motion seals, but only for low speed rotary seals.