HDPE Pipes and Fittings for Drinking Water details description:

HDPE Pipes and Fittings for Drinking Water with high density polyethylene (HDPE) resin as the main raw material, usually add appropriate amount of antioxidants, ultraviolet absorbers and other additives, in order to improve the aging resistance and service life of the pipe. It has strong corrosion resistance, no fear of acid and alkali and other chemical substances, can adapt to complex water quality and soil environment, and greatly extend the service life. The inner wall of the pipeline is smooth, and the water flow resistance is small, which reduces the transportation energy consumption and improves the water transmission efficiency. The connection method is convenient, hot melt and electric melt two ways, so that the interface is firm, sealing performance is good, reduce the potential water leakage. Its light weight, convenient transportation and installation, greatly reducing the difficulty and cost of construction. In addition, it also has good low temperature resistance and impact resistance, and can withstand a certain external impact.

HDPE water pipe material characteristics and advantages:

High corrosion resistance: HDPE is a polymer inert material, has excellent resistance to acid, alkali, salt and other chemicals, can adapt to different water quality and soil environment, no additional anti-corrosion treatment, long service life.
Good low temperature resistance: It has good low temperature resistance, can still maintain good flexibility and impact resistance in low temperature environment, does not occur brittle cracking phenomenon, and can be adapted to outdoor use in cold areas.
High impact resistance: The toughness of the HDPE Pipes and Fittings for Drinking Water is good, can withstand a certain degree of external impact, and is not easy to break during handling, installation or accidental impact, reducing the risk of pipeline damage and water leakage.
Low water flow resistance: the inner wall of the pipeline is smooth, and the surface roughness is only about 0.009mm, which is much smaller than the metal pipeline. When the water flows in the pipe, the friction resistance is small, the energy loss is low, which can improve the efficiency of water transmission and reduce the operating cost.
Reliable connection: It mainly adopts hot melt connection and electric melt connection. The strength of the connection after connection is similar to that of the pipe itself, and the sealing property is good, which can effectively prevent the occurrence of water leakage and ensure the safe operation of the pipeline system.
Long service life: under normal conditions of use, the service life of HDPE Pipes and Fittings for Drinking Water can reach more than 50 years, far exceeding some traditional pipes, reducing the frequency and cost of pipeline replacement, and having good economic and social benefits.
Light weight: The density of HDPE is small, making the weight of HDPE water pipe much lighter than metal pipe, easy to transport and install, can greatly reduce the construction labor intensity and construction costs, improve construction efficiency.
Good environmental performance: HDPE material is non-toxic and tasteless, and will not pollute the drinking water transported, ensuring water safety. At the same time, the material can be recycled, in line with environmental requirements, conducive to sustainable development.

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 cannot 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