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What are the Three Elements and Key Points of HDPE Water Supply Pipe Thermal Welding?

Pulished on Sep. 16, 2020

As a Water Supply Pipeline Manufacturer, share with you. Three elements of HDPE water supply pipeline hot welding preparation: First, during the construction process, as the construction team, the qualification certificate of HDPE water supply pipeline and pipe fittings should be presented, and the permit from the health department and the construction team's construction certificate should be issued for the domestic water supply pipeline. And qualification certificates. The pvc threading pipe is made of polyvinyl chloride resin as the main raw material, added with other additives and extruded. It is used for the protection of straight conduits for wires and cables in industrial and construction projects below 2000V. In recent years, it has been widely used in home interior decoration and construction projects. Wear pipe protection for installation.

HDPE Pipe

HDPE Pipe

HDPE power pipe is made of HDPE for hot dipping or epoxy resin for internal and external coating, which has excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation and will not cause electrical corrosion. Low water absorption, high mechanical strength, low friction coefficient, can achieve the purpose of long-term use. It can also effectively prevent damage to plant roots and soil environmental stress. Secondly, check whether the HDPE water supply pipes and fittings are the specifications and models required for the construction, whether the appearance of the HDPE water supply pipes is bent, deformed or cracked, and whether the colors are consistent; also check whether the outer diameter of the HDPE water supply pipe matches the inner diameter of the pipe fittings , To ensure that the size of the hot melt joint surface meets the welding requirements. Third, when cutting HDPE water supply pipes, the vertical axis of the cutting end must be done well. After cutting, the burrs should be removed and the cut part should be cleaned. Use a special marking pen or marking machine to mark the depth of the pipe to be inserted into the water supply pipe. HDPE water supply pipe thermal welding HDPE water supply pipe thermal melting point: HDPE water supply pipes and pipe fittings should be cleaned before welding, dust-free and water-free; in order to clean and dry, the general construction team uses 98% industrial ethanol and unhaired cloth to wipe the heating plate and Heating head, and welding HDPE water supply pipes and pipe fittings or the heating surface between water supply pipes and water supply pipes to ensure a tight connection. Heat evenly. The welding temperature of HDPE water supply pipeline is between 210℃~235℃, but in order to ensure the welding quality, the melting temperature should usually be tested according to the time period to ensure that the heating temperature of the joint reaches the required value. After the HDPE water supply pipe reaches the melting temperature and time, it is quickly inserted into the pipe fittings and maintains a certain pressure for a certain period of time. It should be gradually increased. The heated HDPE water supply pipe cannot be rotated during this process. After the welding is completed, attention should be paid to static cooling. The thermal welding should be carried out in an environment with no rain and dust, and the temperature is not lower than 5℃, and construction in windy and rainy conditions is prohibited.

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