What pipe is the best for floor heating?

Commonly used floor heating pipes include floor heating pipes, cross-linked polyethylene aluminum-plastic composite pipes, floor heating pipes into PEX pipes and floor heating pipes into PB pipes. Different pipes have their own advantages and disadvantages, and can be selected according to requirements.

1, floor heating pipe cross-linked polyethylene aluminum-plastic composite pipe (XPAP)

The middle aluminum layer has the function of oxygen isolation, which can also improve the internal and external pressure resistance of the pipe to a certain extent. During construction, the shape can be maintained after bending, but the bending radius is relatively large, and it may delaminate when installed or subjected to instantaneous high temperature, and the price is also high. It is a better floor heating pipe than PEX-A pipe.

2. The floor heating pipe enters the PEX pipe

PEX pipe has good toughness at low temperature, higher temperature resistance than PPR, better stress cracking resistance, and high temperature resistance above 1 10 degree, which is the best among all plastic floor heating pipes. PEX floor heating pipe is non-toxic, tasteless, hygienic, non-corrosive, non-bacteria-breeding, smooth inner wall, and does not hinder water flow.

3. Lead pipe of floor heating pipe

It has the characteristics of high pressure resistance, high temperature resistance, low temperature resistance, good impact resistance, easy bending and no rebound, and is the softest of several floor heating pipes. PB tube has light weight, good pressure resistance, impact resistance, low temperature resistance and high temperature resistance, and can be used for a long time at 95℃, with the highest service temperature reaching 1 10℃.

Performance comparison between PE-Xa and PE-Xb for floor heating pipes

1 and PE-Xa have good flexibility and are beneficial to construction. Chemical bond is carbon-carbon bond (C-C), which has good thermal stability, while PE-Xb is silicon-oxygen bond (Si-O-Si), which is not as stable as PE-Xa.

2.PE-Xa is crosslinked synchronously in the extrusion process, and the crosslinking is uniform and stable; However, PE-Xb does not cross-link after extrusion, and needs to be put into a high temperature and high humidity cross-linking tank for secondary cross-linking. The production process is complicated, which requires high equipment, raw materials and technology, especially when domestic equipment and raw materials are used, the stability is even worse.

3.PE-Xa has advanced production technology, high degree of automation, high qualified rate and high finished product rate; PE-Xb is highly dependent on human factors, with high rejection rate and cost allocated to the price, which makes the price deviate greatly from the value.