Introduction
Flange gaskets are used in pipe flange connections. They are the seals between two flanges. The medium, pressure and temperature directly affect the selection of flange gaskets.
Classification
Non-metallic gasket non-metallic gasket A gasket made of asbestos, rubber, synthetic resin and other non-metallic gaskets. Non-metallic jacket gasket non-metallic jacket gasket Non-metallic jacket gasket covered with a layer of synthetic resin.
Semimetallic gaskets are gaskets made of metal and non-metallic materials, such as spiral wound gaskets and metal-coated gaskets.
a spiral wound gasket A spiral wound gasket made of a V-shaped or W-shaped section of a metal band clamped with a non-metallic tape.
1) The inner ring is a metal ring set on the inner ring of a spiral wound gasket.
2) Outer ring A metal ring set on the outer ring of a spiral wound gasket.
b Metal clad
Metallic gasket is a gasket made of metals such as steel, aluminum, copper, nickel, or Monel.
application
Spiral wound gasket refers to a gasket wound with a metal belt (usually a v-shaped steel belt) and a non-metallic belt into a ring. The metal belt and the non-metallic belt are alternately wound. In the flange sealing structure of the electric power industry, according to the specific location, a steel ring can be added to the inner or outer layer of the gasket to locate or strengthen.
standard
1. GB4622.2-93 spiral wound gasket pipe flange size series
2. GB9126.1-88 Asbestos rubber sheet for flat steel pipe flanges
3. GB9126.2-88 asbestos rubber sheet for convex steel pipe flanges
4. GB9126.3-88 Asbestos rubber sheet for steel pipe flange with concave and convex surface
5. GB9129-88 Asbestos rubber gasket technical conditions for steel pipe flanges
6. GB9130-88 Metal ring gasket technical conditions for steel pipe flange connection
7. HGJ70-91 flexible graphite composite gasket for steel pipe flanges
