Cast Steel Blind Flange
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