Pipe Flange

 
   Cangzhou Kangtuo Pipeline Manufacturing Co., Ltd. is located in the pipeline equipment manufacturing base of Hebei, China – Yanshan County, Cangzhou. It is a professional manufacturer specializing in the development, research, and production of steel pipeline fittings. The company is north of Beijing and Tianjin, south of the Jilu region, west of the Jinghuang Expressway, and east of the Jingsha Expressway and Huanghua Port, enjoying a superior geographical location and excellent transportation facilities. It boasts a wealth of talents and a strong technical force.
The company boasts advanced production technology, equipment, and testing systems. We offer a wide range of products including elbows, reducers, tees, crosses, caps, flanges, bends, connectors, expansion joints, and more, catering to industries such as oil, chemicals, metallurgy, shipping, papermaking, power, aerospace, water treatment, chemical fiber, construction, and machinery and equipment. Our products fully meet the requirements for pipeline connections.
The company has always adhered to the principles of "quality as the foundation, high credibility based on integrity, high-quality products governed by law, and high technology driven by people," aiming for customer satisfaction. We are committed to establishing friendly and developing relationships with friends and customers from all over the world, both new and old, for sincere cooperation and the creation of a great undertaking.

A flange is a component used for connecting shafts or for joining pipe ends; there are also flanges used at equipment inlets and outlets for connecting two pieces of equipment, such as a reducer flange. A flange connection or flange joint refers to a detachable connection made up of a flange, a gasket, and bolts, collectively forming a combined sealing structure, also known as a flange boss or rim.

The Usage of Flanges: Flanges are used in pairs. Threaded flanges can be used for low-pressure pipelines, while焊接 flanges are required for pressures over four kilograms. A sealing washer is placed between the two flange plates, then securely fastened with bolts. Flanges of different pressures have varying thicknesses and require different bolts.

Classification methods for flanges:

1. By chemical industry (HG) standards:

Overall Flange (IF), Threaded Flange (Th), Plate Weld Neck Flange (PL), Weld Neck Flange (WN), Socket Weld Flange (SO), Blind Flange (BL(S)), Socket Weld Ring Flange (PJ/SE), Weld Ring Socket Flange (PJ/RJ), Lined Flange Cover (BL(S)), Flange Cover (BL).

2. Divided according to the petrochemical (SH) industry standards: Threaded Flange (PT), Weld Neck Flange (WN), Flat Weld Flange (SO), Socket Weld Flange (SW), Lug Flange (LJ), Flange Cover (not specified).

3. Categorized by mechanical (JB) industry standards: Full face flange, Weld neck flange, Blind flange, Ring type joint flange with welding neck, Ring type joint flange, Grooved ring type joint flange, Flange cover.

4. Divided by national (GB) standards: Welding Neck Flange, Threaded Flange, Socket Weld Flange, Blind Flange, Lap Joint Flange, Flanged Neck Socket Welding Flange, Plate Flange, Flanged Ring Plate Flange, Flat Ring Plate Flange, Beveled Ring Plate Flange, Flange Cover.