The fluorine rubber O-ring is a rubber ring with a circular cross-section. Because its cross-section is O-shaped, it is called a fluorine rubber O-ring. One of the most widely used hydraulic and pneumatic transmission systems. Usually called O-Ring in Taiwanese and Japanese companies. O-ring is an annular rubber sealing ring with a circular cross-section. Under static conditions, O-ring can prevent the leakage of liquid and gaseous media. Under dynamic conditions, fluorine rubber Where are O-rings suitable for use? O-rings can also be used as dynamic sealing elements for axial reciprocating motion and low-speed rotational motion. According to different conditions, different materials can be selected to suit them. The main products include: fluorine rubber O-rings, star rings, skeleton oil seals, polyurethane oil seals, ED rings/pipe joint seals, combination gaskets, pneumatic seals (USH, APA, PDU, DKB), rubber balls, rubber flats Gaskets and rubber miscellaneous parts.
1. Rubber material Nitrile rubber NBR is made of acrylonitrile and butadiene copolymerized. The general operating temperature range is -40~120℃. NBR is one of the most commonly used rubbers for oil seals and fluorine rubber O-rings. Its advantages are: good oil resistance, water resistance, solvent resistance and high pressure oil resistance. It has good compression distortion, wear resistance and elongation strength.
2. Specification description of fluorine rubber O-ring. The general specification is expressed as: inner diameter d1 × wire diameter d2, for example: O-ring 25*2.2, where 25 represents the inner diameter of the O-ring is 25 mm, and 2.2 represents the cross-sectional diameter of the O-ring. 2.2 mm; complete specifications - there are 3,000 pairs of molds, including national standards and non-standards, and the specifications are truly complete.
3.NBR nitrile rubber fluorine rubber O-ring: suitable for use in petroleum hydraulic oil, glycol hydraulic oil, diester lubricating oil, gasoline, water, silicone grease, silicone oil and other media. It is currently the most widely used and lowest cost rubber seal. Not suitable for polar solvents such as ketones, ozone, nitrohydrocarbons, MEK and chloroform. The general operating temperature range is -40~120℃.
4.HNBR hydrogenated nitrile rubber fluorine rubber O-ring: It has excellent corrosion resistance, tear resistance and compression deformation resistance, and has good ozone resistance, sunlight resistance and weather resistance. It has better wear resistance than nitrile rubber. It is suitable for washing machinery, automobile engine systems and refrigeration systems using new environmentally friendly refrigerant R134a. Not recommended for use in alcohols, esters or aromatic solutions. The general operating temperature range is -40~150℃.