Cangzhou Kangle Pipeline Manufacturing Co., Ltd. is located in Yanshan County, Cangzhou, Hebei Province, China, the pipeline equipment manufacturing base, and is a professional manufacturer specializing in the development, research and production of steel pipe fittings series products. The company is north of Beijing and Tianjin, south of Jilu, west of the Beijing-Hongqiao Expressway, east of the Beijing-Shantou Expressway and Huanghua Port, boasts an advantageous geographical location, convenient transportation, a wealth of talents, and a strong technical force.
Our company boasts advanced production processes, equipment, and testing systems. We offer a wide range of products including elbows, reducers, tees, crosses, caps, flanges, bent pipes, connecting fittings, expansion joints, and more, all of which are extensively used in the petrochemical, metallurgy, shipbuilding, papermaking, power, aerospace, water treatment, chemical fiber, construction, and mechanical equipment industries. Our products fully meet the requirements for pipeline connections.
The company consistently adheres to the principles of "quality as the foundation, high credibility as the foundation of virtue, high-quality products as the foundation of law, and high technology as the foundation of people," aiming to achieve customer satisfaction. We are sincerely committed to establishing friendly and developing relationships with friends and customers from all walks of life at home and abroad, as well as with new and old clients, for cooperative endeavors and to create great achievements together.

A flange is a component that connects two shafts together and is used for the connection between pipe ends; there are also flanges used at equipment inlets and outlets, such as reducer flanges, for connecting two pieces of equipment. A flange connection or flange joint refers to a removable joint formed by the combination of a flange, a gasket, and bolts, also known as a flange boss or rim.

Flange Usage: Flanges are always used in pairs. Low-pressure pipelines can use threaded flanges, while those above 4 kg pressure require welding flanges. Place a sealing gasket between the two flange plates and then secure them with bolts. Flanges of different pressures have varying thicknesses and require different bolts.

Classification of Flanges:

1. Divided by the industry standards of chemicals (HG):

Overall Flange (IF), Threaded Flange (Th), Plate Flanged Socket Weld (PL), Weld Neck Flange (WN), Socket Weld Flange (SO), Blind Flange (SW), Ring Type Joint Flange (PJ/SE), Ring Type Joint Flange with Flat Face (PJ/RJ), Lined Flange Cover (BL(S)), Flange Cover (BL).

2. Divided according to the petrochemical (SH) industry standards: threaded flange (PT), welding neck flange (WN), flat welding flange (SO), socket welding flange (SW), loose joint flange (LJ), and flange cover (not specified).

3. Divided by mechanical (JB) industry standards: whole flange, weld neck flange, flat welding plate flange, weld ring plate loose flange, flat ring plate loose flange, beveled ring plate loose flange, and flange cover.

4. Divided by national (GB) standards: Flanged joints, Threaded flanges, Weld neck flanges, Socket weld flanges, Blind flanges, Ring-type joint flanges with weld neck, Plate-type flat weld flanges, Ring-type plate joint loose flanges, Flat ring plate loose flanges, Beveled ring plate loose flanges, Flange covers.