The difference between pex-a, pex-b and pex-c is the difference of process cost, which is more suitable for floor heating.

1, cross-linking methods are different: pex-a is peroxide cross-linking, pex-b is silane cross-linking and cooking cross-linking, pex-c adopts electron beam stirring technology, and the mixing is relatively uniform. It is more suitable to install floor heating PE-RT.

2. Different characteristics: pex-a is limited by temperature, proportion and other conditions, with unstable crosslinking degree and peculiar smell. It can't be considered as the best cross-linked pipe, but the technical properties of pex-c such as low temperature, high temperature and pressure resistance are obviously enhanced. pex-b has many human factors due to the degree of cross-linking and process. There is no guarantee of success.

3. Different applications: pex-c is the most stable cross-linked pipeline at present, but the equipment cost is expensive. The cost is too high. So the promotion is very slow and rare. Pex-a is used more.

Extended data:

Pe-x pipe and pe-rt pipe are the most commonly used air-energy floor heating pipes in the air-energy floor heating industry. Pex pipe is made of polyethylene, and the linear molecular structure of polyethylene is transformed into three-dimensional network structure by physical and chemical methods, thus improving the performance of polyethylene.

Among them, pe-x is divided into pex-a, pex-b, pex-c and PEX-D, among which pex-c pipe has been recognized by the industry as the best air energy floor heating pipe in China.

Pe-rt pipe, that is, heat-resistant polyethylene pipe, is a kind of non-crosslinked polyethylene pipe which can be used for hot water. Besides pex pipe and pe-rt pipe, aluminum-plastic composite pipe and pb pipe are also commonly used for air energy heating pipes. Aluminum-plastic composite pipe has good thermal insulation performance, inner and outer walls are not easy to corrode, the inner wall is smooth, and the resistance to fluid is very small. As a water supply pipe, aluminum-plastic composite pipe has enough strength.