\x0d\1PSP steel-plastic composite pressure pipe mechanical connection method characteristics \x0d\1) PSP steel-plastic composite pressure pipe according to the application environment can be used to expand the type of interface, flare interface, card pressure interface and other connection methods, installation is convenient and quick, easy to operate, the connection can be repeated disassembly and installation, the middle of the way, but also convenient to insert the construction.
Steel-plastic composite pipe connection methods: threaded connection, groove connection, flange welding, steel-plastic composite pipe is generally threaded connection. The general connection method for PSP steel-plastic composite pipe specifications within one hundred millimeters is threaded connection; between one hundred and two hundred is groove connection; more than two hundred is flange welding. Sometimes according to the pressure requirements to determine.
PSP steel-plastic composite pipe supporting the connection fittings according to different application environments and occasions are divided into four: 1) pressure (slot) type copper fittings such fittings are easy to install, high pressure-bearing capacity, corrosion resistance. 2) buried ring ink cast iron groove fittings of this connection is easy to install, easy to maintain. 3) the PSP steel-plastic composite pipe is connected to the PSP steel-plastic composite pipe, the PSP steel-plastic composite pipe is connected to the PSP steel-plastic composite pipe.
Through the instrument heating so that the two ends of the composite tube expansion to a certain extent and then through a section of the special composite tube in the middle and then connected to the two ends of the heated plastic composite tube. Electrically heated dual-heat welding tool until the welding temperature rises to 210 ± 10 ℃, before welding operations.
Steel-plastic composite pipe is divided into two kinds of lined and coated with plastic, if the design is lined with plastic can be coated with plastic steel pipe instead, but if the design is coated with plastic can not be lined with plastic steel pipe instead. The general connection for PSP steel-plastic composite pipe specifications within one hundred millimeters is threaded; between one hundred and two hundred is groove connection; more than two hundred is flange welding.