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Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene.Being hydrophobic, non-wetting, high density and resistant to high temperatures, PTFE is an incredibly versatile material with a wide variety of applications, thought it's perhaps best-known for its non-stick properties.

1. Natural rubber (NR) Natural rubber (NR) is an isoprene polymer. Has excellent resilience, tensile strength, elongation, abrasion resistance, tear and compression set properties are superior to most synthetic rubbers. Suitable for making tires, shock absorption parts, buffer ropes and sealing parts. Not resistant to oil, poor weather resistance, ozone and oxygen performance. Use temperature range -60 ~ 100 ℃.

Sealing is achieved by compressing the gasket material and filling uneven sealing surfaces. This kind of seal can effectively prevent the leakage of the medium. In order to maintain this working condition, the connection part must exert enough load to resist the end-face hydrostatic pressure caused by the internal pressure of the system. The use of gaskets depends on many factors. Let's introduce the factors that affect the sealing performance of stainless steel metal spiral wound gaskets.

Gaskets are normally made from a flat material, a sheet such as paper, rubber, silicone, metal, cork, felt, neoprene, nitrile rubber, fiberglass, polytetrafluoroethylene (otherwise known as PTFE or Teflon) or a plastic polymer (such as polychlorotrifluoroethylene).

Flange insulation group is one of the most common, effective and important connection forms in petrochemical plants, natural gas plants, offshore oil projects, etc. Various pipelines, pipe fittings, valves, instruments and equipment, flange insulation groups have unique performance and advantages. Use insulation kit seals on flanges to protect your pipes from the risk of leakage, sealing is achieved by the fit of flanges, insulating washers, bushings, washers, washers, bolts and nuts. Flange junction is connected and sealed to prevent medium leakage at the flange junction, as well as anti-corrosion and conductive insulation Protect.

A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression.