Kunshan Hui Yang sealed Products Co., Ltd. is engaged in high-quality hydraulic (pneumatic) seals, oil seal, O-ring, all kinds of mechanical seals, graphite packing and other production and sales and technical services as one of professional production companies. Wear-resistant Viton O-ring technical requirements O-ring O-ring (O-rings) is a circular cross-section of the rubber ring, because cross-section of O-type, it is called the O-ring, also known as O-rings. Began to appear in the mid-19th century, the steam engine cylinder seal member was using it for. O-ring O-ring specifications and standards Specification Model main UHSO ring size, UHPO ring size, UNO-ring specifications, DHO-ring specifications, rod O-ring specification, high temperature O-rings, high pressure O-shaped ring, corrosion-resistant O-ring, wear-resistant O-ring. Standard O-rings are mainly national standard GB 1235-76, GB GB3452.1-92; JIS P TYPE, G TYPE, S TYPE, SS / V TYPE, F TYPE; US standard AS568, British standard series; European standard series O-ring The technical requirements include appearance requirements, size requirements and physical properties of materials requirements. Appearance requirements in line with GB / T3452.2-2007 material requirements in line with HG / T2579-2008 in line with the dimensional requirements in the GB / T3452.1-2005 Viton FPM (Fluoro Carbon Rubber) of molecular fluorine rubber, according to the fluorine content (ie monomer structure) and there are various types. Six lines of fluorinated FKM currently the most widely used first by the DuPont Company to "Viton" tradename listed. High temperature resistance than silicone rubber, has excellent chemical resistance, resistance to most oils and solvents (ketones, esters excluded), weather resistance and ozone resistance; cold is relatively poor, the general temperature range of -20 ~ 250 ℃. Specially formulated low temperature resistant to -40 ℃. Advantages: Can be heat-resistant to 250 ℃ · For most of the oil and solvent have the ability to resist, especially all the acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils Disadvantages: * not recommended for use in ketones, low molecular weight esters and containing nitrate mixture. * Automobiles, motorcycles, diesel engines and fuel systems. Kunshan Hui Yang Sealing Products Co., Ltd. Address: Kunshan City, Jiangsu, China Zhenchuan Road Zip:.. 215300 QQ Contact: 937 002 008 Phone: 86 0512-50131470 Fax: 86 0512-82092220 Contact: Liu Yang Mobile: 15312165301 Website: http : //www.fymfzp.com E-MAIL: fymfzp@163.com