What is the connection method of PE RT geothermal pipes

It can be welded with PE-RT pipe fittings, or it can be connected with copper pipe fittings, but there will be hidden dangers after connection, and it is not recommended to bury it.

Hello dear! 1. Docking of hot melt judgment book. The hot melt butt welding machine of PE water supply pipe is used to heat the pipe end, and after the pipe end is melted, it is quickly bonded to maintain a certain pressure and cooled to achieve the purpose of welding.

Second, the electric fusion connection. The electric fusion connection of PE water supply pipe is to put the electric fusion pipe fittings on the pipes and pipe fittings, and the resistance wire embedded in the inner surface of the electric fusion pipe fittings is heated by the electric fusion welding machine, and the heat energy generated makes the inner surface of the electric fusion pipe fittings and the outer surface of the pipe inserted with it melt and melt into one to achieve the purpose of welding. 3. Saddle butt.

In the application process of connecting Songxin PE water supply pipe, it is often encountered that it is necessary to carry out the main pipe tap according to the actual needs, and the traditional pipe must first cut off a section of the main pipe, and then install a tee to complete the tap, and the construction is very cumbersome. For PE pipes, saddle butt connection is adopted, that is, saddle butt welding machine is used to directly connect a saddle pipe fitting on the main pipe to complete the tapping of the main pipe. For the main pipe tap with a nominal outer diameter less than DN200, electrofusion saddle bypass or straight can also be used to carry out the water stop or without water stopping.

Hiroshi Sakura.

Features of Pert pipes.

1.Light weight, easy to transport, install, construction.

2.It has good flexibility, which makes it convenient and economical to lay, and the pipes produced can reduce the use of pipe fittings and reduce construction costs by coiling and bending during construction.

3.When the pipe is bent, the stress in the bent part can be relaxed quickly, and there will be no "rebound" phenomenon, which is convenient for construction and operation.

4.The friction loss in the pipe is small, and the fluid conveying capacity of this kind of pipe is 30% greater than that of metal pipes of the same diameter.

5.The brittleness temperature is low. The pipe has excellent low temperature resistance, so it can be applied even in the case of low temperatures in winter, and the pipe does not need to be preheated when bending.

6.Good chemical corrosion resistance, no rust, long service life.

7.Good environmental adaptability.

8.It can be used safely for more than 50 years under the condition of operating temperature and pressure of 70 degrees Celsius.

9.The pipes are not added with any toxic additives during the production process. The inner wall is smooth, does not scale, does not breed bacteria, and can be safely used in drinking water transportation and other fields.

10.The impact resistance is 5 times that of PVC-U pipes.

11.Good heat and pressure resistance.

12.It can be hot-melted and mechanically connected, reliable and leak-free. Whereas, PE-X can only be mechanically connected.

13.Green and environmentally friendly products, which can be reused.

PEX-B underfloor heating pipes.

1. PEX-B floor heating pipe has the following characteristics:

PEX-B floor heating pipes are clean, pollution-free, non-toxic and tasteless, which can save people from the pain of "yellow water" and "rusty water".

PEX-B floor heating pipe is temperature and pressure resistant, and the long-term use temperature can reach 95

PEX-B floor heating pipes are UV resistant, aging resistant, and have a service life of up to 50 years.

PEX-B floor heating pipes are easy to bend, simple and fast to install, with few pipe fittings, economical and practical.

PEX-B underfloor heating pipes are more resistant to environmental stress cracking.

2. The inner and outer walls of the pipe are smooth, the resistance is small, and there is no scaling;

1. The product quality is stable, the cross-linking degree is stable, and the cross-linking points are evenly distributed;

2. The inner and outer diameters of the pipe are unified, and the longitudinal and transverse wall thicknesses are uniform;

3. Imported high-quality special materials are used, and the indicators of the products meet the GB standard.

Comparison of hot drying gun tests of four materials of commonly used floor heating pipes: PE-XA, PE-XB, PE-XC, and PE-RT.

Pert heat-resistant polyethylene; A type of PEXB cross-linked polyethylene with worse performance than PEXA.

Cross-linked polyethylene is very harmful to the environment because it cannot be utilized. PERT is a newly developed PE pipe specially used for floor heating in the world. Its superior performance has gradually been recognized by the market. The market volume has been much larger than that of cross-linked polyethylene.

GB T18992-2003 GB T18992-2003 PE-XB pipe after production is according to the requirements of GB T18992.

How is the PE one R floor heating pipe connected There is a pert material pipe in the floor heating pipe, because it has good thermal conductivity and is easy to construct, so it is widely used. Its connection method is hot melt connection, and it is very safe to use a hot melt machine and a joint of the same material for hot melt welding. Aluminum-plastic composite pipe belongs to hot melt materials, and when connected, a special hot melt machine is used for hot melt connection PEX is a thermosetting material, and copper pipe fittings are used for connection when connecting, or there is a kind of flexible street on the market, which is a mechanical connection of plastic pipe fittings Strictly speaking, in the sense of Chang Ridge, the part of the floor heating pipe under the ground is not allowed to appear joints

Summary. Hello dear, I'm glad to answer your questions PE joints can not be welded with floor heating pipes. PE (polyethylene) fittings are commonly used to connect polyethylene pipes, while underfloor heating pipes are usually made of polypropylene (PP) or polyethylene (PEX).

Although PE joints and underfloor heating pipes are made of similar materials, they are not fully compatible. In general, PE joints are not suitable for direct welding of floor heating pipes. This is because the welding conditions and technical requirements may be different between PE and PP (or PEX), which can affect the reliability and strength of the connection.

If the wrong method or tool is used for welding, it can cause leaks or other problems at the connection points. In order to ensure the reliability of the connection, it is best to choose a special connector or connector that matches the material of the underfloor heating pipe. These connectors are designed and tested to ensure compatibility with underfloor heating pipe materials and provide a reliable seal.

Hello dear, I'm glad to answer the question for you The PE joint of the group finger base can not be fused with the floor heating pipe. PE (polyethylene) fittings are commonly used to connect polyethylene pipes, while underfloor heating pipes are usually made of polypropylene (PP) or polyethylene (PEX). Although PE joints and underfloor heating pipes are made of similar materials, they are not fully compatible.

In general, PE joints are not suitable for direct welding of floor heating pipes. This is because the welding conditions and technical requirements may be different between PE and PP (or PEX), which can affect the reliability and strength of the connection. If the wrong method or tool is used for welding, it can cause leaks or other problems at the connection points.

In order to ensure the reliability of the connection, it is best to choose a special connector or connector that matches the material of the underfloor heating pipe. These connectors are designed and tested to ensure compatibility with underfloor heating pipe materials and provide a reliable seal.

Good. Thank you.

PE-RT tubingThe hot melt process is used, which is divided into two welding processes:1Hot melt socket welding 2Hot melt butt welding.

The small-diameter DN20-110 adopts the "hot-melt socket welding" process, and the large-diameter DN125-500mm uses the "hot-melt butt welding" process. Two different processes have strict requirements for welding temperature, the temperature of the hot-melt socket welding process is 250-260 °C, the temperature of the hot-melt butt welding process is 200-220 °, due to the change of the construction environment of PE-RT pipes and PE-RT II pipes in different seasons, the welding temperature is inversely proportional to the ambient temperature, that is, the welding temperature of the hot-melt socket process is adjusted to 260 °C in winter and 250 °C in summer; The construction temperature of the "hot melt docking process" is 220 °C in winter and 200 °C in summer

The main connection method of PE pipe is hot melt connection, and other auxiliary connection methods include flange connection and threaded connection, but these two methods are also inseparable from hot melt.

This is determined by the characteristics of the PE-RT pipe. This kind of pipe is more suitable for use as a floor heating pipe in terms of characteristics.

Generally speaking, the characteristics of PE-RT pipes are:

1. The PE-RT tube has good heat dissipation performance, and the thermal conductivity is W (M·K), which is much higher than that of PPR pipe

2. PE-RT tube has good bacteriostatic property.

3. Pressure resistance: Although the pressure resistance and temperature resistance of PE-RT pipe in hot water occasions are similar to that of PPR pipe, its pressure resistance is lower than that of PPR pipe when used in cold water field, which can be seen from the industry standard test ring stress of 10MPa (PP-R pipe is 16MPa).

4. Bending rigidity: PE-RT pipe has good bendability.

The raw material of this pipe is PE-RT, which is a kind of medium-density polyethylene produced by special molecular design and synthesis process, which uses the method of ethylene and octene copolymerization to obtain a unique molecular structure by controlling the number and distribution of side chains, so as to improve the heat resistance of PE pipes. Due to the existence of octene short branched chains, the macromolecule of PE cannot be crystallized in one sheet crystal, but runs through several crystals, forming a bond between crystals, which retains the good flexibility, high thermal conductivity and inertness of PE tubes, and at the same time makes it better in pressure resistance.