PSP steel-plastic composite pressure pipe adopts double hot-melt connection, and the double hot-melt pipe fittings implement the industry standard CJ/T 237-2006.
CJ/T237-2006 (Double Hot-Melt Pipe Fittings for Steel-Plastic Composite Pressure Pipes) promulgated by People's Republic of China (PRC) and the Ministry of Construction is a widely used connection method for PSP steel-plastic composite pipes at present. It is a "double-insurance" hot-melt connection method for the inner and outer surfaces of PSP steel-plastic pipe, which is further developed from the mature hot-melt connection method of pe pipe and PPR pipe, and its market share is far ahead at present. Its characteristics are reasonable cost, mature technology, simple equipment, double insurance and double hot melting to ensure the safety of water supply. Widely used in various government projects, well-known enterprise manufacturers' projects, education, primary and secondary school projects, municipal projects, people's livelihood and housing projects.
2、? Flared connection of PSP steel-plastic pipe
PSP steel-plastic pipe flared (G-shaped expansion/clamping) connection
Implement the industry standard CJ/T 253-2007 Steel-Plastic Composite Pressure Pipe Fittings.
The expansion joint (G-shape/hoop type) of PSP steel-plastic composite pressure pipe is implemented according to the industry standards CJ/T 253-2007 and CJ/T 253-2007 Steel-plastic Composite Pressure Pipe Fittings issued by the Ministry of Construction of People's Republic of China (PRC), and it is a mechanical metal connection mode of PSP steel-plastic composite pipe. Its principle is to enlarge the nozzle, and then use bolts or internal and external threads to sleeve the metal pipe inside the PSP pipe. It is also a PSP pipeline connection method that conforms to the relevant national standards. It is characterized by metal pipe connection, traditional technology, heavy fittings and connecting equipment, less market share and slightly higher cost, but there is still customer demand.
3、? PSP steel-plastic pipe clamping
PSP steel-plastic pipe flared (G-shaped expansion/clamping) connection
PSP steel-plastic pipe shall conform to the industry standard CJ/T 253-2007 Steel-plastic Composite Pressure Pipe Fittings.
The connection mode of PSP steel-plastic composite pressure pipe is flared (G-shape/clamp type), and the industry standard CJ/T 253-2007 is implemented.
Summary: Generally speaking, PSP steel-plastic composite pipe can be divided into the above common connection methods, and PSP steel-plastic composite pipe is the most widely used double hot melt connection.