Ningbo Tecson Sealing Technology Co.,Ltd
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Tecson Sealing Technology

Address: No.1,Huapeng Rd, Kandun District, Cixi City, Zhejiang Province, P.R.C

Tel: 0086-574-23707877

Fax: 0086-574-23707878



Graphite Gaskets Classification

Graphite gaskets are made of pure graphite plates or metal (tooth plate, plate, net) reinforced graphite plate cut or stamping, with many excellent sealing performance, such as: heat stability, self-lubricating, corrosion-resistant, non-aging, Etc., in the harsh conditions can be long-term stable use, very little need to maintain. Lining materials are available in different metal sheets. Type optional no edge, inside the package edge, outsourcing edge, inside and outside the edge. Graphite cutting washers are made of perforated or cut from a pure graphite plate. It has good corrosion resistance, high / low temperature resistance, good compression resilience and high strength, and various rounds of complex Geometric gaskets are widely used in pipes, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators and so on.

For a variety of industrial pipe flanges, heat exchangers, bonnet, etc., as well as liquid level gauge, the level of the special shape of the flange.

Graphite gasket to graphite wire as the material, made by weaving and shaping. Graphite gasket for high temperature, high pressure, strong corrosive media work under the various types of valves, pumps, reactors and other equipment stuffing box seal.

Ingredients: Expandable graphite (flexible graphite) from pure natural graphite through chemical treatment and 1000 ℃ high temperature treatment, this material provides excellent heat resistance and chemical resistance, can make the gasket is very high elasticity and low Ductility characteristics.


1, flexible graphite gasket in the very low temperature to 400 ℃ high temperature range of sealing performance is almost unchanged;

2, flexible graphite gasket almost all of the liquid has excellent chemical resistance (except for strong oxidizing acid);

3, due to cold deformation and ductility is very small, too tight installation of flexible graphite gasket has no effect.


Flexible graphite gaskets are made of flexible graphite flakes (or with metal reinforcement), which are divided into four types depending on the application requirements:

1, flexible graphite gasket: from the flexible graphite sheet cut from the pipe flange and valve cover and so on. It is recommended that this gasket be a small diameter gasket, depending on its low mechanical strength.

2, flexible graphite gasket MI: hooked carbon steel sheet (0.2 mm thick) is placed in the middle of the flexible graphite sheet, and then cut into a specific size, high mechanical strength.

3, flexible graphite gasket PM: flexible graphite sheet is attached to the 0.2 mm thick 304 stainless steel sheet on both sides, with high mechanical strength and easy to transport, because it can also be cut into a complex shape, this gasket Is widely used in various industries.

4, flexible graphite gasket PM-A: T / # 1215 stainless steel sheet replaced with 316 steel (50 microns).