Class300 ASME B16.47 A181 26″-48″ Series B Blind Flange

Class300 ASME B16.47 A181 26″-48″ Series B Blind Flange

Followings are the definition, information and application of  various types of flanges:

Weld Neck Flange Slip On Flange Blind Flange Threaded Flange
Plate/Plain Flange Socket Weld Flange Orifice Flange Spectacle Blind Flange
Lap Joint/Loose Flange Long Weld Neck Flange Reducing Flange Rolled-Forging Ring Flange
Flange-Olet Tube Sheet/Tubesheet Anchor Flange Non-Standard/Custom Flange

The blind flange looks like a plate with bolts holes around.It has two kinds:series A blind flange and series B blind flange.We mainly produce blind flange according to standard ASME/ANSI B16.5,ASME/ANSI B16.47,EN1092-1,JIS B2220,BS4504,DIN,UNI,BS 10 etc.

Class300 ASME B16.47 A181 26"-48" Series B Blind Flange

Class300 ASME B16.47 A181 26″-48″ Series B Blind Flange

ASME B16.47 A181 26″-48″ Series B Blind Flange Pressure:


Class300 ASME B16.47 A181 Series B Blind Flange Size:


Class300 ASME B16.47 26″-48″ Series B Blind Flange Material:

Carbon steel: ASTM A105, A181, ASTM A516 GR.60, GR.70, ASTM A694 F42, F46, F52, F56, F60, F65, F70, ST37, ST45.8, C22.8, S235, S235JRG2, P235GH, P245GH, P250GH, P265GH, P355GH, S355J2, 16MN, 20MN, Q235, 20#, CT20, SS400.  

Stainless steel: ASTM A182 F304, F304L, F316, F316L, F321, F321H, F304H, F316H, F347H, 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4571, SUS304, SUS316.

Alloy Steel: ASTM A350 LF2, CL1/CL2, ASTM A182 F5, F9, F11, F12, F22, F91.

Duplex Steel: S31803  /  F51  /  S32205  /  F60  /  1.4462

Super Duplex: S32750  /  F53  /  1.4410  /  S32760  /  F55  /  1.4501

Haihao Group Flange Products Application:

Water Treatment, Shipbuilding industry, sea Platform, Petrochemical & Gas industry, Power plant, Valve industry, Construction, Chemical industry, General piping system etc.

Haihao Group Flange Products Application

Haihao Group Flange Products Application

Hebei Haihao Group was founded in 1982,which is widely manufacturing blind flange and other types of flanges.We have advanced production lines. Products are manufactured by forging, cold pressing, cold forming, hot extrusion, heat treatment, polishing, rubbing, machining and chrome finishing.Welcome to contact us when you have any need about series B blind flange and other products.

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