A pipe flange is disc, collar or ring that attaches to pipe with the purpose of providing increased support for strength, blocking off a pipeline or implementing the attachment of more items.  Pipe flanges are usually welded or screwed to the pipe end and are connected with bolts.

Standard:

ANSI/ASME B16.5,ANSI/ASME B16.47,BS4504,BS3293,EN1092,DIN2631 etc.

Material:

Carbon steel,stainless steel,alloy steel,duplex steel,super duplex.

FF ASME B16.5 Plate Flange

A gasket is inserted between the two mating flanges to provide a tighter seal.  Pipe flanges are either custom with dimenions provided by the customer or they are manufactured according to published specifications.

Hebei Haihao group as a first class manufacturer of blind flange(BL flange) in China,supplys a variety of steel flanges to satisfy our customers’ specifica requirements,which include different size,different schedule,different pressure and different finish faces. Our products are produced strictly according to the required standard. Our raw material for weld neck flanges all are purchased from big steel companies which can make sure the material in a high quality.