Coupling-Pinyin guan gu, English coupling, it is a commonly used fitting in industrial pipe connection. A pipe clamp is a short piece of pipe used to connect two pipes. Also called external connector. Because of its convenient use, pipe clamps are widely used in civil construction, industry, agriculture and other fields. The main manufacturing standards for pipe collars generally include GB/T14383, ASME B16.11, and BS 3799.

Socket ferrule is a pipe connector that is machined by round steel or steel ingot die forging. Its connection form is socket welding (Socket Welding-SW). The steel pipe is inserted into the socket for welding. Therefore, it is called "Socket ferrule", the main manufacturing standards are ANSI/ASME B16.11, GB/T 14383.

The varieties of socket pipe clamps include double socket pipe clamps and single socket pipe clamps. Among them, double socket pipe clamps are divided into equal diameters and different diameters, and double socket pipe clamps with different diameters are also divided into concentric and eccentric.

The socket ferrule consists of a socket, a socket, a socket, etc. It is characterized in that there is a socket on the socket.

The sockets are respectively located at the two ends of the curved part; compared with the prior art, the design is reasonable, the operation is simple, the practicability is strong, and the operation quality and convenience are improved.

Socket pipe clamps can be widely used in pipes of different diameters, including single-way, three-way, four-way, etc., and can also be used for water meters and valves. Because of the socket structure, the pipeline joint reduces the cost, is extremely convenient to install, use, and maintain, and at the same time, it has a very high leakage resistance.