Can PVC pipes be hot melted?

Many construction personnel and users will have the question "can PVC pipes be hot-melted" when connecting pipes. The answer is no. There are obvious differences in material and performance between PVC pipes and PPR pipes. The use of hot melt to connect PVC pipes not only fails to achieve the desired effect, but also brings many problems.

PPR pipes are made of random copolymer polypropylene materials, which have good thermoplasticity. They can be softened by heating at a specific temperature and can be re-solidified after cooling. This allows PPR pipes to be firmly integrated with pipe fittings by hot melt connection. Hot melt connection, the use of special hot melt equipment to connect the site heated to 260 - 280 ℃, pipe and pipe fittings molecules can be diffused, entangled with each other, forming a high-strength connection, good sealing and long service life, so PPR pipe manufacturers in the product construction guidance also recommend hot melt connection.

the main component of PVC pipe is polyvinyl chloride, although this material is also a thermoplastic, but its heat resistance is poor, easy to decompose after heating to produce hydrogen chloride gas. If the PVC pipe hot melt operation, when the temperature rises, PVC pipe material will quickly become soft deformation, decomposition reaction occurs at the same time, resulting in the destruction of the physical and chemical properties of the pipe. Even if you try to connect the PVC pipe and pipe fittings after heating, due to the gas and deformation generated by the decomposition of the material, the connection cannot be tightly fitted, it is difficult to form a firm connection, and the problem of pipeline leakage is very easy to occur during use. For example, in some drainage projects, there were construction workers who mistakenly connected the PVC pipe by hot melt. As a result, water seepage appeared at the connection soon after it was put into use, and eventually the pipe had to be replaced, resulting in a waste of manpower and materials.

In view of the fact that the PVC pipe cannot be hot melted, the correct connection method is usually glue connection. During construction, first clean the connection parts of PVC pipes and pipe fittings, then evenly apply PVC special glue on the outer wall of the pipe and the inner wall of the pipe fittings, quickly insert the pipe into the pipe fittings, and keep it for a certain period of time. After the glue solidifies, a relatively firm connection can be realized. This connection method is relatively simple to operate, and can meet the needs of PVC pipes in drainage, wire protection and other scenarios.

In the engineering construction of Qianjiang, Jianli, Tianmen, Jingmen, Shayang and other places, it is crucial to choose high-quality pipes and professional manufacturers. Hubei AD Yuan Building Materials Co., Ltd. is a professional pipe manufacturer, covering the business scope of PVC pipe manufacturers and PPR pipe manufacturers. The PVC pipes produced by the company strictly follow the relevant standards. From raw material screening to production and processing, every link is strictly controlled to ensure reliable product quality. For the connection of PVC pipes, the company will provide customers with detailed technical guidance to help construction personnel master the correct glue connection method. At the same time, the PPR pipes produced by the company are also known for their high quality and stable hot melt performance, providing users with reliable pipeline solutions. If you have pipe procurement and related technical consultation needs, please call 17399989993, Hubei AD Building Materials Co., Ltd. will serve you wholeheartedly.