anise pad

The octagonal metal ring gasket is installed in the trapezoidal ring groove on the flange surface. When the connecting bolt is tightened, it is axially compressed and tightly attached to the upper and lower trapezoidal grooves, resulting in plastic deformation, forming an annular sealing band and establishing the initial seal. After boosting, under the action of medium pressure, the ring gasket is radially expanded. The gasket and the inclined surface of the trapezoidal groove are more tightly fitted, resulting in a self-tightening effect. However, the increase of the medium pressure will also deform the flange and the connecting bolt, resulting in the relative separation between the sealing surfaces and the relative decrease in the gasket sealing ratio. Therefore, the ring gasket can be considered as a semi-self-tightening seal. The octagonal metal ring gasket is mainly in surface contact with the flange groove. Compared with the oval ring gasket, although it is not easy to achieve close contact with the flange groove, it can be used again and is easy to process because the cross section is composed of straight lines. At the same time, the hardness of the octagonal metal ring gasket should be 15~20HB lower than the flange surface.

Keyword：

pad the is gasket ring and in flange of trapezoidal

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Flange Gasket

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15354087771

zhx@hongjiaxj.cn

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anise pad

The octagonal metal ring gasket is installed in the trapezoidal ring groove on the flange surface. When the connecting bolt is tightened, it is axially compressed and tightly attached to the upper and lower trapezoidal grooves, resulting in plastic deformation, forming an annular sealing band and establishing the initial seal. After boosting, under the action of medium pressure, the ring gasket is radially expanded. The gasket and the inclined surface of the trapezoidal groove are more tightly fitted, resulting in a self-tightening effect. However, the increase of the medium pressure will also deform the flange and the connecting bolt, resulting in the relative separation between the sealing surfaces and the relative decrease in the gasket sealing ratio. Therefore, the ring gasket can be considered as a semi-self-tightening seal.
The octagonal metal ring gasket is mainly in surface contact with the flange groove. Compared with the oval ring gasket, although it is not easy to achieve close contact with the flange groove, it can be used again and is easy to process because the cross section is composed of straight lines. At the same time, the hardness of the octagonal metal ring gasket should be 15~20HB lower than the flange surface.

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Hengshui Hongjia Rubber Products Co., Ltd.

Tel: 15354087771

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Website: https://hjrose.en.alibaba.com/

Address: Jingxian Development Zone, Hengshui City, Hebei Province