Application Of Blind Flange:

Without the blind flange it would be difficult to perform maintenance or repairs on a pipeline. The flow would need to be shut off at the nearest valve, which could be miles away from the repair area. Valves are also very expensive and are prone to sticking. The blind flange is a much more cost efficient way of sealing a pipe.

A Blind flange is round plate which has all of the relevant boltholes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. It also permits easy access to the interior of a line or vessel once it has been sealed and must be reopened.Blind Flanges are commonly used in petrochemical, pipe engineering, public services & water works.

ASTM A105 Raised Face Blind Flange

Class125 ASTM A694 F60 Blind Flange

Class125 1/2″-160″ Blind Flange  Product Show:

Class125 ASTM A694 F60 Blind Flange

Class125 ASTM A694 F60 Blind Flange

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.