Definition of pipe fittings

We usually contact is fitting, but for the true definition of pipe fittings must be not all people know. The so-called fitting, is to pipe connection into line parts. According to the connection method can be divided into the socket type pipe fittings, flanges threaded pipe fittings, pipe fittings and welding pipe fittings four classes. Use the same as the pipe materials. Elbow (elbow), flange, tee, four-way tube (cross) and reducer (reducer), etc. Bend to turn his arm; Flange is used to make the pipe with pipe connecting parts, connection pipe, tee to the meeting-place of three tube; Cross pipe used in the meeting-place of four tube; Reducer is used for different pipe diameter of two pipes are connected.