Threaded connection fittings

　　Threaded pipe fittings:

　　The pipe is the pipe connection into line parts. On the basis of connection methods can be divided into socket fittings, threaded pipe fittings, flanges and welded up four. With the same material and pipe. Elbow （elbow）， flange, three pipe and four pipe （crosshead） and reducer （reducer） etc Elbow for pipeline turn central; flange for tube and pipe interconnected parts, connected to the pipe end, three-way pipe for aggregation of the three tubes of central; four-way pipe for aggregation of four tubes of central; different diameter pipe for the two different diameter tubes connected to the central.

　　Thread:

　　1, with a guaranteed tunicoides, large triangle or big d type, equipped with a complex link for, the most common use of a is used for rope and maintenance of safety belt link.

　　2, the pipeline device for a connection, threaded connection, also known as thread engagement, it is after internal and external screw thread of the pipeline and a pipeline, a pipeline and a valve are connected. This cohesion is mainly used for the connection between steel, brass and high pressure pipeline, pipe fittings, valves, threaded pipe welding screw machine operation is currently used in the majority, and a thread machining accuracy and surface roughness requirements very high pressure pipeline must lathe.

　　Screw thread pipe fittings connection link the mainly used for steel, copper and high cohesion, welding pipe threaded screw machine operation is currently used in the overall situation, and a thread machining accuracy and surface roughness requirements very high pressure pipeline must lathe.