Grooved fittings are a new type of steel pipe connection fittings, also called clamp connections, which have many advantages.

Overview of Grooved Fittings

The design specifications for automatic sprinkler fire extinguishing systems state that the connection of system pipes should be made with grooved fittings or threaded or flanged connections; pipes with a diameter equal to or greater than 100 mm in the system should be connected in sections with flanges or grooved fittings.

Grooved fitting connection technology, also known as clamp connection technology, has become the first choice for current liquid and gas pipeline connections. Although this technology was developed later in China than abroad, it was quickly accepted by the domestic market due to its advanced technology. Since 1998, it has been developed and applied in just a few years, and has gradually replaced the two traditional pipeline connection methods of flanges and welding. Not only is it more mature in technology, it is also generally recognized by the market, and has been actively guided by national laws and regulations.

The application of grooved fitting connection technology makes the complex pipeline connection process simple, fast and convenient. It has taken a big step forward in pipeline connection technology.

Introduction to pipe fittings

Grooved pipe fittings include two major categories of products:

① Pipe fittings that play a connecting and sealing role include rigid joints, flexible joints, mechanical tees and grooved flanges;

② Pipe fittings that play a connecting and transitioning role include elbows, tees, crosses, reducers, blind plates, etc.

Grooved connection pipe fittings that play a connecting and sealing role mainly consist of three parts: sealing rubber rings, clamps and locking bolts. The inner rubber sealing ring is placed on the outside of the connected pipe and matches the pre-rolled groove. Then the clamp is buckled on the outside of the rubber ring and then fastened with two bolts. Because the rubber sealing ring and clamp adopt a unique sealable structural design, the groove connector has good sealing performance, and its sealing performance increases accordingly with the increase of the fluid pressure in the pipe.