Structural Design

Shape and Dimensions: Square flanges are quadrilateral, with four sides and four corners. Their side lengths and thickness are designed according to different usage needs and standards. Common size ranges are wide, from smaller diameters to larger industrial sizes.

Connecting Holes: Multiple connecting holes are evenly distributed on the four sides of the square flange. These holes are used to insert bolts or other fasteners to connect the square flange to other components such as pipes and equipment, enabling the assembly of the piping system.

Sealing Groove: Some square flanges also have a sealing groove on their surface for installing sealing gaskets or seals, enhancing the sealing of the flange connection and preventing media leakage.

Manufacturing Materials

Metallic Materials

Carbon Steel: Possesses high strength and hardness, is relatively inexpensive, and can withstand certain pressures and temperatures. Commonly used in general industrial piping systems, such as water supply and heating pipes.

Stainless Steel: Features excellent corrosion resistance, oxidation resistance, and high-temperature resistance. It can be used for extended periods in harsh environments, is not easily rusted or corroded, and is suitable for industries with high corrosion resistance requirements, such as chemicals, food, pharmaceuticals, and papermaking.

Alloy Steel: Has good comprehensive performance. The alloy composition can be adjusted according to specific needs to improve the flange's strength, toughness, and wear resistance. It is often used in pipe connections under special conditions such as high pressure, high temperature, and high corrosion.

Non-Metallic Materials

Plastics: Such as polytetrafluoroethylene (PTFE) and polypropylene (PP), they have good corrosion resistance, insulation, and sealing properties. They are lightweight and inexpensive, but their strength and high-temperature resistance are relatively poor. They are suitable for some corrosive media transport pipelines, such as chemical laboratory pipelines and sewage treatment pipelines.

Rubber: Features high elasticity, shock absorption, noise reduction, and good sealing performance. It is often used in conjunction with metal flanges, such as square flange rubber joints, to compensate for pipe displacement, absorb vibration and noise, and is widely used in various piping systems.

Product Features

Good Sealing Performance: The sealing groove design of the square flange and its cooperation with sealing gaskets or seals can provide reliable sealing performance, effectively preventing leakage of the media in the pipeline and ensuring the safe operation of the piping system.

Easy Installation: The four corners and four sides of the square flange make it easier to locate and align during installation. Compared with circular flanges, it has more advantages in situations with limited space or precise installation requirements, and the arrangement of connecting bolts is relatively simple, making it easy to operate.

High Strength and Stability: Using appropriate materials and reasonable structural design, square flanges can withstand large pressures and tensile forces, have high strength and stability, and can ensure the reliability of the piping system during operation.

Adaptable to Complex Working Conditions: According to different usage environments and media requirements, selecting appropriate materials and surface treatment processes, square flanges can work normally under complex conditions such as high temperature, low temperature, high pressure, and strong corrosion.

Strong Customization: According to specific project needs, the size, material, connection method, and sealing method of the square flange can be customized to meet the special requirements of different piping systems.

Application Areas

Wind Power Industry	Shipbuilding	Mechanical Manufacturing
Nuclear Power Industry	Oilfield Industry	Chemical Industry