Coated galvanized steel outer

Plastic pipe connection piping applications as part of the key, is worthy of attention and concern of the detail. Compared with ordinary steel pipe, plastic pipe connection work is relatively still a lot of place to note that, after all plastic pipe wall is coated with powder material corrosion properties, are summarized below under you, how to choose coated steel connection tube. Currently, plastic pipe connections have summed up what several categories, threaded connections, clamp connections, flanged, welded directly, double metal connection, plug-type connection, no damage connections, etc., of course, choose a different Connection to the actual construction and operation needs, DN65 below the small diameter pipe, connected to the institute in the design aspect of time, usually threaded connection, but does not exclude other forms of connection, such as the pressure level is greater than 1.6Mpa, you can choose a flange connection, but this time the construction cost will rise a lot. Clamp connection for pipe DN50-300 caliber size, pressure rating is also within the scope of 1.6Mpa, and the clip can be divided into flexible and rigid, for in different areas, were selected with respect to the large diameter is requires pressure is large, it is generally recommended that the flange connection, the connection is secure, tighten the screws opposite operation is also very convenient. Bimetallic welding is required for a direct connection butt newly developed areas, the connection is connected to the pipe diameter DN150 or more, choose the highest price when buried. Type socket for connection of the cable conduit, which is simple and convenient manner.