Explain the connection method of carbon steel elbo

Carbon steel elbow is commonly used in the pipeline system, and its connection methods are mainly as follows:

1. Welding connection: carbon steel elbows can be connected by welding process, including submerged arc welding, gas welding, manual arc welding, etc. The advantages of this connection method are strong connection, good sealing, suitable for high temperature, high pressure and other requirements of the occasion. However, it should be noted that the operation requirements of the welding process are relatively high, and technical training and skill assessment are required.

2. Threaded connection: carbon steel elbow can be connected through threaded connection, this connection is suitable for low pressure, low temperature and other requirements are not high occasions. Its advantage is that it is convenient to connect and disassemble, and it is suitable for occasions that often need to be replaced or repaired. However, it should be noted that the tightness and firmness of the threaded connection is relatively poor, and it needs to be checked and replaced regularly.

3. Flange connection: carbon steel elbow can be connected through the flange connection, this connection is suitable for low pressure, low temperature and other requirements are not too high occasions. Its advantage is that it is convenient to connect and disassemble, and it is suitable for occasions that often need to be replaced or repaired. At the same time, the flange connection also has better sealing and firmness. However, it