ASTM A181 BS4504 PN10 1/2″-80″ Spectacle Blind Flange

ASTM A181 BS4504 PN10 1/2″-80″ Spectacle 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

We are professional in producing spectacle blind flange according to ASME/ANSI B16.5,EN 1092-1,BS4504,UNI,DIN,JIS B2220 etc.We also produce other kinds of flange according to other standards such as:ASME/ANSI B16.5, ANSI/ASME B16.47, BS 4504, DIN 2527, EN 1092-1, GOST/ГОСТ 12821-80, JIS B2220,SABS/SANS 1123, MSS SP-44, UNI 6091, UNI6092, UNI6093, UNI6094, UNI6095 etc.

ASTM A181 BS4504 PN10 1/2"-80" Spectacle Blind Flange

ASTM A181 BS4504 PN10 1/2″-80″ Spectacle Blind Flange

ASTM A181 BS4504 PN10 Spectacle Blind Flange Size:


ASTM A181 BS4504 1/2″-80″ Spectacle Blind Flange Pressure:


BS4504 PN10 1/2″-80″ Spectacle 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 Certificate:

BS EN10204 3.1 MTC,ABS,PED 97-23-EC,CE,ISO,API approved.

Haihao Group Flange Products Certificate

Haihao Group Flange Products Certificate

Hebei Haihao Group was founded in 1982,which is widely manufacturing to several of flange.We are a professional manufacture factory specialized in producing spectacle blind flange and other products.We have our own team and advanced technology to produce.Welcome to contact us when you have any need about all kinds of spectacle blind flange.

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