Difference Between Flange Connection and Groove Connection of SSAW Steel Pipe

SSAW steel pipe is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip at a certain helix angle (called forming angle) into a tube blank, and then welding the pipe seams. Steel produces large diameter pipes. Mainly used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction and so on. The connection methods of ssaw steel pipe include flange connection and groove connection.

The characteristics of the flange connection of the ssaw steel pipe:

Flange connection speed is fast, construction is convenient, and tools are simple, but in terms of safety and sealing, it cannot meet most engineering requirements. Generally, pipes with low pressure and frequently used pipes are suitable for this connection method, such as sludge discharge pipes, etc. .

Groove connection of ssaw steel pipe: also known as clamp connection technology, it has become the first technology for liquid and gas pipeline connection. Although the development time of this technology in China is later than that in foreign countries, due to its advanced technology accepted by the domestic market. The application of grooved pipe connection technology makes complex pipe connection procedures simple, fast and convenient. A big step forward in plumbing technology.
 
SSAW steel pipe groove connection pipe fittings include two major categories of products:

1. The pipe fittings that play the role of connection and sealing include rigid joints, flexible joints, mechanical tee and groove flanges;

2. The pipe fittings that play the role of connection and transition include elbow, tee, cross, reducer, blind plate, etc. The groove connection pipe fittings that play the role of connection and sealing are mainly composed of three parts: sealing rubber ring, clamp and locking bolt. The rubber sealing ring located on the inner layer is placed on the outside of the connected pipe, and fits with the pre-rolled groove, and then a clamp is fastened on the outside of the rubber ring, and then fastened with two bolts.
 
Due to the unique sealable structure design of its rubber sealing ring and clamp, the groove connection has good sealing performance, and with the increase of fluid pressure in the pipe, its sealing performance is correspondingly enhanced.