Can PPR pipe melt with PE pipe?

Can PPR pipe and PE pipe hot melt: The answer is not directly hot melt connection, which involves the material characteristics of the two pipes and the difference in hot melt parameters. If forced to melt directly, it will bring many hidden dangers to the pipeline system.

PPR pipe is made of random copolymer polypropylene material, PE pipe is made of polyethylene material, and the molecular structure of the two is different. The molecular chain of PPR pipe contains more methyl side chains, which makes it have high rigidity and heat resistance; while the molecular chain of PE pipe is relatively simple, with good flexibility and corrosion resistance. Different molecular structures determine their performance in the hot melt process is very different. The hot melt temperature of the PPR pipe is generally between 260-280 ° C. At this temperature, the molecular chain of the PPR pipe can be fully active to achieve good integration of the pipe and the pipe fittings; while the hot melt temperature of the PE pipe is usually 200-230 ° C. If the temperature is too high, the PE pipe will decompose and carbonize. If the PPR pipe and the PE pipe are directly hot melted, because the two hot melt temperatures do not match, the optimal hot melt state cannot be achieved at the same time, and one of the pipes will be over-melted and the other side will be under-melted. It is difficult to ensure the connection quality.

actual construction, if the PPR pipe and the PE pipe are forcibly hot-melted directly, it is easy to have problems such as weak connection and water leakage. Because during the hot melt process, the two pipes cannot form a stable intermolecular bond, and there are gaps and weak points at the connection. Over time, under the action of water flow pressure, these gaps will gradually expand, resulting in water leakage. For example, in a small decoration project in Wuhan, the construction staff tried to directly hot melt connect the PPR pipe and the PE pipe because they did not understand the characteristics of the pipe. Less than a week after it was put into use, there was leakage at the connection, and finally the pipe had to be replaced, which increased the construction cost and time cost.

Since the PPR pipe and the PE pipe cannot be directly hot melt connected, what should be done when the two need to be connected in the actual project? At this time, the adapter can be used. One end of the adapter is made of PPR material, and the other end is made of PE material. It is connected with the PPR pipe and the PE pipe through the corresponding hot melt method to realize the transition connection of the two pipes. When using the adapter, it is necessary to strictly follow the operation specifications. First, the adapter is connected with the PPR pipe at a temperature of 260-280 ° C, and then the other end is connected with the PE pipe at a temperature of 200-230 ° C to ensure that the connection is tight and firm.

in Wuhan, Hubei and other places, the price of PPR pipe and PE pipe is also the focus of attention of engineers and users. Generally speaking, the price of PPR pipe and PE pipe will be affected by factors such as pipe diameter, wall thickness, brand, etc. Under normal circumstances, the price of PPR pipe of the same specification is relatively high, because the production process and raw material cost of PPR pipe are relatively high; while the price of PE pipe is relatively close to the people, which is more advantageous in some cost-sensitive projects. Selecting high-quality pipe products and professional manufacturers is the key to ensuring the quality of the project. As a professional PPR pipe manufacturer and PE pipe manufacturer, Hubei AD Yuan Building Materials Co., Ltd. produces PPR pipe and PE pipe products in strict accordance with national standards, with reliable quality. The company provides a variety of specifications of pipes, with reasonable and transparent prices, and can also provide customers with professional pipe selection suggestions. At the same time, for the connection problem of PPR pipe and PE pipe, the company is equipped with a professional technical team, which can provide customers with a full range of services including guidance on the use of adapter joints. If you have any pipe procurement needs or technical consultation, please call 17399989993, Hubei AD Building Materials Co., Ltd. will serve you wholeheartedly.

PPR pipe and PE pipe cannot be directly connected by hot melt, using adapter is an effective way to realize the connection between the two. In the engineering construction and decoration projects in Wuhan, Hubei and other places, choosing the products and services of Hubei AD Building Materials Co., Ltd. can not only obtain high-quality pipes, but also get professional technical support, providing guarantee for the smooth implementation and stable operation of pipeline projects.