Thin-wall precision capillary carbon steel pipe (20g carbon steel reducer)

The division and construction procedures of construction pipeline engineering 1. Commonly used connection methods for construction pipelines According to the purpose and pipe material, the commonly used connection methods for construction pipelines are: threaded connection, flange connection, welding, groove connection (clamp connection), ferrule type Connection, compression connection, hot melt connection, socket connection, etc. 1. Threaded connection. The threaded connection is connected by threaded pipe fittings. The galvanized steel pipe with a pipe diameter less than or equal to 80mm is suitable for threaded connection, and it is mostly used for surface-mounted pipes. Steel-plastic composite pipes are generally also threaded. When the galvanized steel pipe is threaded, the surface of the damaged galvanized layer and the exposed thread part should be treated with anti-corrosion treatment. 2. Flange connection. Pipes with larger diameters are connected by flanges. Flange connections are generally used in main roads to connect valves, water meters, water pumps, etc., and on pipe sections that require frequent disassembly and maintenance. 3. Welding. Welding is suitable for non-galvanized steel pipes, mostly used for concealed pipes and pipes with larger diameters, and is widely used in high-rise buildings. Copper pipe connections can be made by special joints or welding. When the pipe diameter is less than 22mm, socket or sleeve welding should be used. The socket should be installed facing the medium flow direction. When the pipe diameter is large

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