Cast Steel Blind Flange factory

　　Blind flange (blind disk) the formal name of flange cover, there are also called is blind flange.Is the middle flange without hole, for sealed pipe plug.Sealing surface sort is more, in the form of a plane, convex and concave and convex surface, grooved surface, RTJ（Cast Steel Blind Flange factory）.

　　Material is carbon steel, stainless steel, alloy steel, PVC and PPR and so on.Blind plate look from the exterior, generally divided into blind plate plate plate, 8 characters/board, board, and ring gasket (flashboard and pad ring are blind pass).[

　　Flat steel pipe flange cover (GB/T9123.1-2000)

　　Convex steel pipe flange cover (GB/T9123.1-2000)

　　Concave steel pipe flange cover (GB/T9123.2-2000)

　　Grooved surface steel pipe flange cover (GB/T9123.3-2000)

　　RTJ steel pipe flange cover GB/T9123.4-2000) [4]

　　Marine blind plate steel flange GB/T4450-1995

　　Production standard:

　　Chemical standards

　　HG20592-2009.

　　HG20615-2009.

　　HG20601-97.

　　The national standard

　　GB/T9123.1-2000

　　GB/T9123.2-2000

　　GB/T9123.3-2000

　　GB/T9123.4-2000

　　GB/T4450-1995

　　The mechanical standard

　　JB/T86.1-94

　　JB/T86.2-94