Carbon steel flanges, a type of pipe connection component, are manufactured from carbon steel material and provide enhanced strength and durability in specific applications compared to traditional flanges. These flanges are commonly utilized for connecting cast iron or steel pipes within the 50-515mm diameter range. Their non-steel connections allow for convenient disassembly and assembly, while also exhibiting good toughness to withstand certain tensile forces, making them suitable for connection applications in low-pressure piping systems.
The flat welding flange is a prevalent method for connecting steel pipes with a nominal pressure below 2.5MPa. The resulting smooth, concave-convex, and mortise-and-tenon joints can be applied in various situations. In residential settings, smooth flat welding connections are often used in low-pressure water circulation systems with gentle flow rates.
The connection steps for carbon steel flanges and pipes are typically as follows:
Preparation: Ensure that the ends of the flanges and pipes are smooth, undamaged, and free from dirt or debris to ensure a proper seal.
Alignment: Align the ends of the flanges and pipes so they can be properly matched during installation.
Installing gaskets: Place gaskets between the flanges to provide sealing properties, selecting gaskets of appropriate materials as needed.
Inserting bolts: Insert bolts into the holes of the flanges, ensuring that the bolts match the flange holes and leaving enough space for nut tightening.
Connecting flanges: Position the flanges on the ends of the pipes, allowing the bolts to pass through the flange holes and match with the corresponding flange nuts.
Tightening bolts: Use a wrench or torque wrench to tighten the bolts one by one, following a specified sequence to ensure even tension on the bolts and prevent air leaks or loosening at the flange connection.
Inspecting the connection: After completing the connection, check for any air leaks or leakage at the flange connection to ensure the sealing performance meets requirements.
In the industrial sector, flange connection structures are widely employed, with stainless steel flanges being the preferred choice. Stainless steel flanges offer excellent corrosion resistance and play a crucial connecting role in industrial equipment. Therefore, whether carbon steel flanges or stainless steel flanges, they both serve an important connecting function in different scenarios, ensuring the safe and stable operation of piping systems.
