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PE pipe welding temperature PE pipe construction welding temperature


Release time:

Aug 27,2019

PE pipes are divided into low density PE pipes, medium density PE pipes, high density PE pipes, and ultra-high molecular weight PE pipes. The welding methods and heating temperatures used for different pipes are different. Small diameter or thin wall with socket way, and hot melt PPR pipe is the same, but the heating temperature is different. Low density 160 degree, medium density 190 degree, high density and ultra high molecular weight with 210-decorative knowledge 235 degree. Large diameter requires a special hot melt machine, which is basically divided into 160, 250, 315, 450 and 630 models. Butt connection (that is, pipe and pipe are directly melted and connected) can also be connected by electric melt pieces.

PE pipes are divided into low density PE pipes, medium density PE pipes, high density PE pipes, and ultra-high molecular weight PE pipes. The welding methods and heating temperatures used for different pipes are different. Small diameter or thin wall with socket way, and hot melt PPR pipe is the same, but the heating temperature is different. Low density 160 degree, medium density 190 degree, high density and ultra high molecular weight with 210-decorative knowledge 235 degree. Large diameter requires a special hot melt machine, which is basically divided into 160, 250, 315, 450 and 630 models. Butt connection (that is, pipe and pipe are directly melted and connected) can also be connected by electric fuse without welding rod, pipe connection or direct butt connection.

  What is the reason why there are more bubbles after the hot melt joint of PE pipe is flanged?
1. Does your hot melt temperature meet the requirements? Is the time for inserting hot melt enough? 2. Is your hot melt device or tube not cleaned? 3. Is the caliber of the tube and the hot melt device matched? The above three points are only suggestions. Whether there are impurities, if you want a hot melt machine, you can buy it from me, Hangzhou Wo Rong Technology.

  Can PE pipe and ppr pipe be welded together
PE is made of polyethylene and PPR is made of polypropylene. The two materials cannot be welded. The molecules are different and the melting temperature is different. Those below 63 can be connected by wire and those above 63 can be connected by flange! PE is a polyethylene material, PPR is a polypropylene material, the two materials cannot be directly welded, the molecules are different, the melting temperature is also different, PE hot melt temperature 210 degrees, PPR260 degrees, two. No, you can just buy an inner and outer wire connection, and a flange for large diameter. Connotation....

  Can PE pipes be directly welded with different wall thicknesses?What?
Yes, but do not weld directly, because PE has different melting points from PPR and will be disconnected for a long time. Just add a PE flange root conversion. It has nothing to do with pipe diameter and wall thickness. The welding temperature is 210 10. Pay attention to windproof during welding! Better not ~.

  What are the technical points of hot melt butt PE pipe and how to determine the quality of the welding point?
Hot melt butt PE pipes must be guaranteed mainly with 4.1: welding temperature, time, pressure and cleanliness of welding surface. The temperature is determined according to the grade of raw materials, PE100 is 215-235 ℃,PE80 is 200-220 ℃, time and pressure are determined according to pipe and welding machine, and welding surface must be clean. The quality of welding seam is mainly determined by program control, and the judgment is based on appearance: flanging is uniform and symmetrical, with moderate height; The surface is smooth and free of degradation; There is no bump mark, and the lowest point of the weld is higher than the surface of the pipe. No cracking occurs in the back bending test weld. The hot melt of PE pipe generally uses a hot melt machine to hot melt, and a problem often occurs during hot melt. Because of the different raw materials used, the hot melt speed of pipe fittings and pipes is inconsistent. Of course.

  Can PPR and PE pipes be welded together? How much pressure can you withstand?
I took it this summer, and there is no water leakage up to now. I have also consulted experts. They said that it is not possible in terms of material composition, but in terms of melting principle, it is compatible. If it is buried in the ground with cement, it should be no problem. In theory, PPR and PE pipes cannot be directly melted together. If the building owner melts together like this, the mechanical and electrical knowledge may not leak for the time being, but I also took over the 4kg pressure that will leak after a long time. I wanted to change it at that time, but our boss was afraid of trouble and did not change it. I took it the year before last and did not come to find any trouble for the time being. If I can change it, I try to change it. I worry about it every day. There is no problem for the time being, but it won't last long. Be careful to burst the water pipe jacket.

Can PE pipe and ppr pipe be directly welded?
PE pipe and ppr pipe cannot be directly welded, and the connection between them with small pipe diameter is carried out by converting parts. The large pipe diameter is carried out through the flange. PPR pipes can be connected by hot melt, PE pipes cannot be connected by hot melt. If Feng Shui wants to connect them together, a pipe section can be added in the middle to connect the two pipes. Can not be directly hot melt, can only be variable diameter. Can not be directly welded because of the different materials, the welding temperature is also different, even after welding, easy to leak, generally use flange connection, or PPR inner wire directly connected with PE outer wire,.

  high density pe pipe welding temperature
About 210 ℃, also need to be adjusted according to the outside temperature. When the temperature is high in summer, it can be around 200 ℃, and when it is cold in winter, it can be around 220 ℃.

WeldingSuitable temperature for connecting PE pipe and hot melt machine
The temperature of the hot plate 280 200~230 ℃ does not need to look at the model, look at the pipe wall, the simplest method for welding thick pipe wall for a longer time: the pipe and the piece are heated at the same time, and the head of the fusion splicer can be fully advanced. It's very simple. Pay attention to the connection between the piece and the pipe. 230-280 250 to 300.























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