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Basic types of flange sealing surface
Dec 27, 2018

There are four basic types of flange sealing surface: plane sealing surface flange (including plane, FF and face, RF), suitable for occasions with low pressure, non-toxic media and nominal pressure less than 4 OMPa grade; Concave and convex sealing flange (code FM), suitable for high pressure occasions, can be used in the nominal pressure 2.5, 4.0, 6.4MPa level; Tenon groove sealing face flange (code TG), suitable for inflammable, explosive, toxic media and high pressure occasions; Ring joint face flange (code RJ), mainly used in high temperature, high pressure and two high working conditions.

Basic types of flange sealing surface

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