Imported star-ring (X-ring), usually made of NBR star-ring, fluorine rubber star-ring. Imported star-ring (X-ring) Description: Star-ring (the star-ring), also known as X-ring, which is the cross-section through a die to form four circular annular sealing lip ring, it On the basis of the O-ring performance has been improved and improved, can replace most of the O-ring applications. It is a kind of sealing member may both directions for sealing purposes. When installed in various forms of grooves in the radial or axial precompression imparting initial star-ring sealing capability, the pressure increases with increasing its sealing force. Under pressure, the star-ring cross-sectional shape causes a uniform pressure is transmitted to the various aspects, it has good sealing effect. Imported star-ring (X-rings) applications: dynamic sealing applications for sealing reciprocating pistons, piston, piston. For sealing oscillating, rotating or helical motion of shaft or spindle. Static sealing applications: Sealed radial stationary parts, such as sleeves, end caps, pipe. Seal axially stationary parts, such as flanges, covers and so on. Star fluorine rubber ring: inside (Fluoro Carbon Rubber) fluorinated molecules of rubber, according to the fluorine content (ie monomer structure) and there are various types. Six series of fluorinated Viton currently the most widely used first by DuPont to "Viton" tradename listed. High temperature resistance than silicone rubber, have excellent chemical resistance, resistance to most oils and solvents (ketones, esters excluded), weather resistance and ozone resistance; cold resistance is relatively poor, the general temperature range of -20 ~ 250 ℃. Specially formulated to be low temperature -40 ℃. Advantages: 1. Heat to 250 ℃ 2. For most of the oil and solvents have the ability to resist, especially all of the acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils Cons: 1. Not recommended for use in ketones, low molecular weight esters and mixtures containing nitrate. 2. automobiles, motorcycles, diesel engines and fuel systems. 3. The chemical seal. Black VITON75 star-ring Viton Temperature range: static sealing: low temperature -26 ℃, 275 ℃ high temperature dynamic seal: low temperature -15 ℃, temperature 200 ℃ temperature VITON fluorocarbon material advantages and disadvantages - the star-ring (for in a variety of demanding industrial applications) elastomers: Viton or peroxide-cured bisphenol fluorine rubber O-ring has a strong high temperature and low temperature (-40-240oC) performance has good oil characteristics very good resistance dielectric properties, especially freon, acids, bases having all good resistance to corrosion carbohydrates (oil, grease, solvent) fluorine rubber has a low gas permeability in the high-pressure chemical resistant properties has a very strong anti- Compression permanent deformation, tear strength, abrasion resistance contact us at: Wal-top seal Taiwan - China Operations (Wuxi City Wall Top Trading Co.) Address: Liang Qing Road, Lake District, Wuxi City, Jiangsu Province, China Tel 555 630 : 0510-85899515-806 Fax: 0510-85899516 Mobile: 13301510715 (Miss May) Website: www.wxotp.com mail: wx@otp.net.cn For orders, please contact us to obtain a sample book, Wal-top (OTP ) high quality on your side.