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Blind Flange

A blind flange is of importance in the piping system. It is mainly used to block off a pipeline or to create a stop. Also this steel flange is indispensable in a pipeline when repair is required. Without this type of pipe flange, it would be difficult to perform maintenance or repairs on a pipeline.

N-STEEL supplies an assortment of blind flanges with a full range of specifications and materials. If you have a need, just contact us freely.

3/8"~ 80"

Pressure of Blind Flange
American series: ANSI CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500 and CLASS 2500
European series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63 and PN 100

Types of Flange Face
American Series: Flat Face (FF), Raised Face (RF), Tongue (T), Groove (G), Female (F), Male (M), Ring Joints Face (RJ)
European Series: Type A (Flat Face), Type B (Raised Face), Type C (Tongue), Type D (Groove), Type E (Spigot), Type F (Recess), Type G (O-Ring Spigot), Type H (O-Ring Groove)

Materials of Blind Flange
Carbon steel: A105
Alloy steel: A182 F1-F2-F5-F9-F91-F1-F12-F22
Stainless steel: A182 304-304H-304L-304N-316-316H-316L-316N-316N-321-321H 347-347H
Low temperature steel: A350 LF2-LF3-LF8
High performance steel: A694 F42-F46-F52-F56-F60-F65-F70

Standards of Blind Flange
GB/T9112-2000, GB/T9123.1-2000, GB/T9123.2-2000, GB/T9123.3-2000, GB/T9123.4-2000, GB/T9124-2000
GD2000 GD87-1101
JB/T74-1994, JB/T75-1994, JB/T86.1-1994, JB/T86.2-1994
HG/T20592-2009, HG/T20614-2009
HG/T20615-2009, HG/T20623-2009, HG/T20635-2009
ASME B16.5-2009, ASME B16.47-2006
MSS SP 44-2006
CSA Z245.12-05-2005
EN1092-1-2007 EN1759-1-2004
BS1560-3.1-1989, BS4504-3.1-1989
AFNOR NF E29-200-1-2007
JIS B2220-2004

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