Introduction and application of anchor flange

Anchor flange is an important supporting member of large diameter,high pressure and long distance gas or oil pipeline. It is mainly welded on the gas (oil) pipeline,fixed with cement piers,and partially or completely buried underground.Anchor flange looks like weld neck flange with shape,and the weight can be estimated according to two weld neck flanges of the same size.The most common anchor flange material is A105 carbon steel,but they can also be supplied using stainless or high-yield stress materials.

Schematic of anchor flange used in pipeline

In places with low pressure, short pipes can be used instead.For connections of fixed pipes without maintenance for life or required burial underground and require high pressure,conventional flanges cannot ensure safe and reliable work of high-pressure pipes.Anchor flange is a kind of axisymmetric ring body with flange.The two sides of the flange are symmetrical flange necks.The ends of the two flange necks are respectively welded with the pipe ends and embedded in the anchor pile.The two flanges connected by bolts are combined with the existing technology,the sealing gasket is cancelled, and an integral flange is made,which is connected with the gas transmission pipeline by welding, and fixed by its flange and flange body and anchor pile,so that it can be used to fix the connection of pipelines.

Anchor Flanges Finished in Haihao Group

Anchor flange is suitable for the West-to-East Gas Transmission Project in China and the fixed connection of many line valve Chambers.Our flange products are widely used in the following industries: oil,gas,chemical,shipbuilding,water treatment,power plant,steam,construction and other fields all over the world.

We supply forged flanges more than 30 years and we obtained the recognition from the clients and end user of domestic markets and all over the world.We have world-famous clients,such as Exxon Mobil,Shell,CNPC,SINOPEC,Unilever, chevron,Pemex,Petrobras,Hyandai etc.We can produce the flanges in different standard such as ISO,API,ANSI,BS,JIS,UNI, MSS,SP etc,and also stocks a wide range of flanges in various materials,sizes and specifications.For more infromation,please contact us feel free,Email:sales@haihaogroup.com