Three Connection Methods of Large Diameter Double-sided Submerged Arc Welded Spiral Steel Pipe

Three Connection Methods of Large Diameter Double-sided Submerged Arc Welded Spiral Steel Pipe

Welding is the most commonly used connection method for large-caliber spiral double-sided submerged arc welding (SAW) spiral steel pipe. But in some projects, threaded connection, flange connection, socket connection and groove connection are often used.

1. Welding and Flange Connection

Welding and flange connection belong to the traditional l-spiral steel pipe connection mode, which can not meet the market demand in safety, sealing performance, cost space and emergency repair efficiency. They are mainly suitable for water pipeline connection, oil and gas pipeline connection, chemical pipeline connection, power pipeline connection and so on.

2. Connection of grooved fittings

Groove pipe fittings connection technology, also known as clamp connection technology, has become the first technology for liquid and gas pipeline connection. Although this technology has been developed later in China than abroad, it is quickly accepted by the domestic market because of its advanced technology. The application of grooved pipe fittings connection technology makes the complicated pipe connection process simple, fast and convenient. Pipeline connection technology has taken a big step forward. Groove connection makes pipeline connection easy to operate, conducive to construction safety, good system stability, convenient maintenance, labor and time saving, so it has good economic benefits. With the clamp connection, although the price of the single part of the clamp is higher, the comprehensive benefit of the whole pipe network installation is higher than that of the flange connection.

3. Connection of clamp fittings

As an advanced pipe connection mode, clamp pipe fittings can be either laid or laid, i.e. steel joints or flexible joints. Therefore, it has a wide range of applications.