1,, steel-plastic composite pipe connection methods: threaded connection, groove connection, flange welding, steel-plastic composite pipe is generally threaded connection. 2, steel-plastic composite pipe, seamless steel pipe, welded steel pipe as the base pipe, the inner wall coating high adhesion, corrosion resistance, food-grade sanitary polyethylene powder coating or epoxy resin coating.
2, PSP steel-plastic composite pipe connection connection there are two kinds of connection, one is double hot melt connection, the other is the internal expansion flare connection. Double hot melt connection is generally used for DN160 below, DN160 above the flange connection.
3, groove connection groove connection is suitable for nominal diameter of not less than 65mm coated (lined) steel pipe connection. At the same time groove type pipe joints should be in line with the current national product standards. Application of rolling groove machine pressure groove, pressure groove pipe section should be kept horizontal state, steel pipe and rolling groove machine surface at 90 °.
4, 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.
5, PSP steel-plastic composite pipe supporting the connection of fittings according to different applications and occasions are divided into four: 1) compression (groove) type copper fittings such fittings are easy to install, high pressure-bearing capacity, corrosion resistance. 2) buried cast iron groove fittings of the ring is easy to connect the convenient installation, 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.
6, steel-plastic composite pipe connection method steel-plastic composite pipe is also called steel-plastic pipe or plastic lined pipe, is a steel pipe connected with HDPE, both the characteristics of steel pipe and plastic pipe characteristics. Steel-plastic composite pipe is generally connected to the specification of one hundred millimeters or less is a threaded connection; between one hundred and two hundred is a groove connection; more than two hundred is a flange welding.
Water supply with PSP steel-plastic composite pressure pipe, flare connection, related valves using what connection?
PSP steel-plastic composite pressure pipe using mechanical connection fittings, mechanical connection fittings according to the interface type is divided into: flare type, internal expansion type, compression type. Cold water fittings (all interface type fittings); hot water fittings (flare type interface and compression type interface). Below are several interface forms are described in detail.
Steel-plastic composite pipe shall not be directly connected to the valve according to the specification, should be used inside the brass plastic lined inside and outside the threaded special transition fittings. I do not know the reason for the specification of such requirements, and the cost will increase a lot, how do we deal with it, is directly connected or according to the specification to do.
PSP steel-plastic composite pipe supporting the connection fittings according to different application environments and occasions are divided into four: 1) compression (groove) type copper fittings such fittings are easy to install, high pressure-bearing capacity, corrosion resistance. 2) buried ring ink cast iron trench fittings of this connection is easy to install, easy to maintain.
PSP steel-plastic composite pipe fittings of several connection methodsSteel-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.
Threaded connection, groove connection, flange welding, steel-plastic composite pipe is generally threaded connection. The general connection is 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 of fittings according to different applications and occasions are divided into four: 1) compression (groove) 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.
PSP steel-plastic composite pressure pipe according to the use of the environment and its own characteristics, with three kinds of mechanical connection: internal expansion type interface, flare type interface, compression type interface. This article mainly introduces the characteristics of the three connections and their specific construction methods.
psp steel-plastic composite pipe with flare how to connect?\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 type interface, clamping type interface and other connecting methods, easy to install fast, easy to operate, the connection can be repeatedly disassembled, the middle of the way is also convenient to insert 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 by a threaded connection; between one hundred and two hundred is a threaded connection; more than two hundred is a flange welding.
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. Electricity heated double-heat welding tool until the welding temperature rises to 210 ± 10 ℃, before welding operations.
Steel-plastic composite pipe is divided into two kinds of plastic lined and coated, if the design is plastic lined can be replaced by plastic coated steel pipe, but if the design is coated with plastic can not be replaced by plastic lined steel pipe. The general connection 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.
How to connect the steel-plastic composite pipeThreaded connection, groove connection, flange welding, steel-plastic composite pipe is generally threaded connection. The general connection is PSP steel-plastic composite pipe specifications of one hundred millimeters or less is a threaded connection; between one hundred and two hundred is a groove connection; more than two hundred is flange welding. Sometimes according to the pressure requirements to determine.
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.
The next step is to connect the pipe and fittings, before connecting the attention to check the plastic lined malleable iron pipe fittings within the rubber seal, and then the fittings will be hand twisted on the end of the pipe screw so that the two are connected. Flange connection using the flange connection method should pay attention to the flange used for the plastic lined convex threaded steel pipe flange with neck.
PSP steel-plastic composite pipe connection connection there are two kinds of connection, one is a double hot melt connection, the other is the internal expansion flare connection. Double hot melt connection is generally used for DN160 below, DN160 above is using flange connection.
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.