Flange connection flange connection is to fix two pipes, pipe fittings or equipment on one flange respectively, then add flange gasket between the two flanges, and finally tighten the two flanges with bolts to make them closely combined.
of the main road, as well as the pipe sections that need to be removed and repaired frequently.
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It has the characteristics of protecting water quality and sanitation, strong corrosion resistance and long service life.
The connection of copper pipe can also be crimped with threaded ferrule.
According to the purpose and pipe materials, the commonly used connection methods of building pipes include: threaded connection, flange connection, welding, grooved connection (clamp connection), ferrule connection, compression connection, hot-melt connection, adhesive connection, socket connection, etc.
Galvanized steel pipes are connected by threads.
Key points of hot melt connection of pipe fittings: after reaching the heating time, immediately remove the pipe and pipe fittings from the heating sleeve and heating head at the same time, and quickly insert them into the marked depth in a straight line without rotation, so as to form a uniform flange at the joint.
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Socket connection socket connection is mainly used for cast iron pipes, concrete pipes, ceramic pipes, plastic pipes, etc.
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Adhesive connection apply adhesive on the two pipe fittings to be bonded to make them react chemically, and then press the two bonding surfaces to make them fully contact, so as to achieve the purpose of bonding and forming.
with socket joints.
Hot melt connection hot melt connection is widely used to connect PP-R pipe, PB pipe, PE-RT pipe and other new pipes and fittings.
Put the fitting nut on the pipe end, then put the inner core of the fitting into the end, and tighten the fitting and nut with a wrench.
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Special joints or welding can be used for copper pipe connection.
Clamping connection stainless steel clamping pipe fitting connection technology replaces the traditional water supply pipeline connection technology such as thread, welding and glue connection.
Galvanized steel pipes with diameter less than or equal to 100mm should be connected with threads, which are mostly used for surface mounted pipes.
Flange connection is generally used in the connection valves, check valves, water meters, water pumps, etc.
Ferrule joints are not suitable for places with high temperature and vibration.
It has the advantages of convenient installation and It has the advantages of reliable connection and economic rationality.
Hot melt connection mainly includes: hot melt socket connection and hot melt butt welding connection.
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Steel plastic composite pipes are generally connected with threads.
Threaded connection (also known as threaded connection) threaded connection is connected with threaded pipe fittings.
It has the characteristics of simple operation, no impact on the original characteristics of the pipeline, safe construction, good system stability, convenient maintenance, labor and time saving.
Socket or casing welding should be used when the pipe diameter is less than 22mm.
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Hot melt connection has the advantages of simple connection, long service life and not easy to corrosion.
The pipes with larger diameter are connected by flange.
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Welding is applicable to non galvanized steel pipes, mostly for concealed pipes and pipes with large diameter, and is widely used in high-rise buildings.
Grooved connection (clamp connection) grooved connector connection can be used for galvanized steel pipes with a diameter greater than or equal to 100mm in fire water, air conditioning cold and hot water, water supply, rainwater and other systems.
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During construction, the socket pipe fitting with special sealing ring is connected with the pipeline, and the pipe orifice is pressed with special tools to seal and fasten.
Ferrule connection is a connection method in which the pipe is pressed on the pipe with locking nut and threaded pipe fittings.
The surface of galvanized coating and exposed threads damaged during threading shall be subject to anti-corrosion treatment.
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