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Position：Home >> News >> Several commonly used modern industrial sealing products News
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| Several commonly used modern industrial sealing products | | 发布者：admin 点击：1773 | A: graphite gasket
Graphite gasket material can be divided according to graphite gaskets and flexible graphite gaskets, graphite gaskets are reinforced graphite sheet from drilling or cutting is made, it has good corrosion resistance, high / low temperature, good compression resilient and high strength.
Two: spiral wound gasket
There are three main types:
Octagonal and oval-shaped pads - for trapezoidal trough flange sealing surface
Tooth form of the metal flat gasket sealing surface machined cone tooth ripple - For flange sealing surface irregularities
Lens pad - for lens flange sealing surface
There are pure iron metal gasket, very soft steel, stainless steel, aluminum and other materials
High precision metal gasket sealing surface and the surface roughness, the bolt clamping force is large, for use in high temperature and high pressure valves
Three: metal coated graphite gasket
Covered by a thin metal ring gasket made of asbestos. Generally used in the bump flange sealing surface. Suitable for high temperature and pressure, the valve
Four: spiral wound gasket
By corrugated metal band and sealing materials with mixed entwined. There strip - asbestos, steel - PTFE, steel - flexible graphite and other. Generally used to bump flange sealing surface. Suitable for medium pressure valve high temperature.
Five: PTFE gasket
Mainly made of Teflon PTFE and glass fiber clamp the two materials are generally used for the sealing surface of the trough tongue. Used in a variety of pressures lower temperature corrosive media.
Six: Asbestos rubber gasket
Generally with asbestos, acid asbestos, oil asbestos, asbestos and other metal wire clip material. Suitable for flange sealing surface smooth, convex flange sealing face and tongue and grooved flange sealing surface. The advantage is better corrosion resistance and thermal stability, good plasticity surface, with a smaller pressing force families to ensure the seal. The disadvantage is that low intensity, easy to stick in the flange sealing surface. There are universal asbestos asbestos rubber gasket, corrosion asbestos, used in higher temperature in the pressure valve. |
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