Spiral steel pipe connection method

Spiral steel pipe (SSAW), also called spiral welded steel pipe, is a common pipeline material and is widely used in construction, water conservancy, petroleum, chemical industry and other fields. When connecting spiral steel pipes, correct methods and measures need to be taken to ensure a solid connection, good sealing, and strong corrosion resistance. Several connection methods for spiral steel pipes will be introduced below.

1) Welding connection

Welded connection is one of the most commonly used connection methods for spiral steel pipes. When making welding connections, qualified welding materials and skilled welding techniques are required to ensure welding quality and safety. The advantages of welded connections are:

1. Firm connection: During welding, the edges of the spiral steel pipe are melted and reconnected to form a smooth weld, thereby ensuring the sealing and strength of the pipe.
2. Wide range of application: suitable for spiral steel pipes of various shapes and sizes, including straight pipes, elbows, tees, etc.

3. Strong corrosion resistance: The welded spiral steel pipes can effectively prevent pipeline corrosion after being coated with anti-corrosion materials.

2) Flange connection

Flange connection is a commonly used mechanical connection method. When making flange connections, it is necessary to install a flange on one end of the spiral steel pipe and a corresponding flange joint on the other end, and then connect the two flanges with bolts to form a sealed pipe connection. The advantages of flange connection are:

1. Good sealing: Flanges and bolts can effectively ensure the sealing of the pipeline and prevent media leakage.
2. Easy to disassemble: The flange connection is easy to disassemble and repair, making it convenient to replace pipes or repair equipment.
3. Wide range of application: suitable for spiral steel pipes of various shapes and sizes, including straight pipes, elbows, tees, etc.

3) Socket connection

Socket connection is a commonly used connection method for plastic pipes. When making a socket connection, one end of the spiral steel pipe needs to be inserted into the socket, and then the other end is sealed to form a sealed pipe connection. The advantages of socket connections are:

1. Convenient construction: The socket connection is easy to construct and can be quickly installed and disassembled.
2. Good sealing: The socket connection is sealed with a sealing rubber ring, which can effectively ensure the sealing of the pipeline.
3. Strong corrosion resistance: After the spiral steel pipes with socket connections are coated with anti-corrosion materials, they can effectively prevent pipeline corrosion.