HDPE Pipes and Fittings for Drinking Water description:

HDPE drainage pipe is the replacement of traditional steel pipes and PVC drainage pipes, which mainly undertakes the drainage tasks of rainwater, sewage, farmland drainage and irrigation. It is widely used in drainage fields such as highway, railway roadbed, subway project, waste landfill, tunnel, green belt, sports field and slope protection caused by high water content, as well as underground irrigation and drainage system of agriculture and horticulture.

HDPE drainage pipe material characteristics and advantages:

Strong corrosion resistance: HDPE is an inert material, can resist acid, alkali, salt and other chemical substances erosion, suitable for different water quality and soil environment drainage system.
Good impact resistance: with high toughness and impact strength, even in low temperature environment, it can effectively resist external impact force and is not easy to break.
Good wear resistance: the inner wall of the pipeline is smooth, the roughness coefficient is only 0.009, the flow resistance is small, it is not easy to scale, and it can also reduce the wear of solid particles on the inner wall of the pipeline and extend the service life.
Easy connection: Usually using hot melt connection or electric melt connection, high interface strength, good sealing, can effectively prevent leakage, avoid pollution to the environment.
Light weight: The density of the HDPE Pipes and Fittings for Drainage/ Sewer is small, and the weight is only 1/8-1/10 of the concrete pipe of the same specification, which is easy to transport and install, and can greatly reduce the difficulty and labor intensity of construction.
Long service life: under normal conditions of use, the service life of HDPE drainage pipe can reach more than 50 years, with good economy

Construction method of HDPE Pipes and Fittings for Drinking Water:

Hot melt connection: The hot melt machine is used to heat the connection part of the pipe and pipe fittings to a molten state, and then the two are quickly bonded, cooled and solidified under a certain pressure to form a solid connection. Suitable for the same material, nominal outer diameter ≥63mm pipe and pipe, pipe and pipe fittings connection.
Electric fusion connection: the electric fusion pipe is set on the pipe, and the resistance wire in the electric fusion pipe is electrified through the electric fusion welding machine, so that the resistance wire heats up and the contact surface of the pipe and the pipe is melted, and the body is formed after cooling. Suitable for various specifications of HDPE water pipe connection, especially suitable for nominal outer diameter < 63mm pipe or can not use hot melt connection occasions.
Socket connection: First heat one end of the HDPE pipe to soften it, and then insert the other end into the softening end, and then heat and apply pressure to make the two closely combined. This connection method is suitable for small-caliber HDPE pipes, convenient installation, fast connection speed, but the connection strength is slightly lower than that of hot melt butt and electric melt connection.
Flange connection: The HDPE pipe and flange are connected together by hot melt or electric melt, and then the two flanges are connected by bolts, and the sealing gasket is installed in the middle to realize the connection and sealing of the pipeline. The flange connection is suitable for the connection of HDPE pipes with valves, flowmeters and other equipment, as well as the parts that need to be disassembled frequently, which is easy to maintain and overhaul.
PE quick joint connection: This joint has an internal cavity into which the PE pipe can be inserted, sealed and fixed by sealing rings or elastic clasp and other components, suitable for small and medium diameter PE pipe connection.

Hot melt connection	Electric fusion connection

Socket connection	Flange connection

PE quick joint connection