How about the heat dissipation of Jinde PB floor heating pipes

Performance comparison of commonly used floor heating pipes Floor heating pipes and aluminum-plastic pipes are common pipes. The following is a brief introduction to the performance of several common floor heating pipes: PE-X:

Domestic production generally adopts the method of cross-linking medium density polyethylene or high-density polyethylene with silane or peroxide. It is to make chemical bonds between the linear long molecular chains of polyethylene to form a three-dimensional network molecular chain structure. Compared with general polyethylene, it has improved tensile strength, heat resistance, aging resistance, stress crack resistance, and dimensional stability.

The whole production process is a chemical reaction process. The floor heating variety has difficulties such as the cross-linking agent is not easy to disperse evenly, the cross-linking degree is difficult to control consistently, and the screw needs to be cleaned regularly to prevent the generation of gel particles, and the quality control of the product is difficult, and it is difficult for the general small production enterprises to do a good job. Qualified PE-X pipes have the advantages of good mechanical properties, high temperature and low temperature resistance.

However, PE-X pipes do not have thermoplastic properties and cannot be joined and repaired by hot melt welding. PB: Known as the soft ** in plastics, the creep resistance and mechanical properties are superior, the softest of several types of floor heating pipes, and the design calculation wall thickness is the thinnest under the same design pressure.

Under the same conditions of use, the same wall thickness series of pipes, this variety has the highest safety of use. However, the raw material is the highest, more than double that of other varieties, and the current application area in China is less. pe-rt：

The floor heating raw material is a kind of medium-density polyethylene with very stable mechanical properties, which is formed by metallocene catalytic copolymerization of ethylene and octene. Its unique ethylene backbone and octene short branch chain structure make it have the superior toughness, stress cracking resistance, low-temperature impact resistance, outstanding long-term water pressure resistance and heat creep resistance of octene. It can be connected by hot melt connection, and accidental damage can also be repaired with hot melt connection of pipe fittings.

The raw material for floor heating has a creep failure curve that meets the product standard, and it is the only variety of polyethylene that can be used for hot water pipes without cross-linking at this stage.

PB pipes are not recommended for floor heating coils, and PE RT pipes are more suitable from the perspective of heat dissipation effect.

To be honest, it's not good. In fact, not only Jinde's saying that some PB heat dissipation effects are not good, PB's advantage is high temperature resistance, but heat dissipation is weak. At present, the best brands in China are George and Weixing, I have checked the information, the general floor heating pipes are like PE-RT, and the thermal conductivity of the meter is not enough, but the effect of PB is clear at a glance.

According to the service life, 25 of the wall thickness of the German Kuosheng as an example, under 80 degrees of hot water, if you use it for 1 year, you can withstand it, if you want to use it for 5 years, you can withstand it, if you want to use it for 10 years, you can bear it, if you use it for 25 years, you can bear it, depending on your requirements.

In fact, regular companies do not use PB pipes to make floor heating pipes.

Weixing, Ruihe, Georg Fischer, and Kinder are all good.

Floor heating pipe refers to a kind of pipe used as a circulating flow carrier of low-temperature hot water in the low-temperature hot water ground radiant heating system (referred to as floor heating). Since the birth of floor heating, the following pipes have been used as floor heating pipes.

Zhongcai and Jinde from the ** point of Zhongcai's expensive, mainly depends on the construction process, and the quality of accessories, just listen to ** is useless, a square meter is expensive ten yuan eight pieces of what is the meaning, as long as it is done well, it is good floor heating.

The deformation and cracking of the PB pipe is something that no one can change, right? After all, PB is plastic, which is not resistant to high temperatures and is easy to deform, and the problem of longitudinal cracking is also common! If the aluminum-plastic pipe is so unbearable as you say, why do 99% of the HVAC companies on the market use aluminum-plastic pipes?

PB pipe is very expensive, a square minimum of about 130, the quality is also the best, and his construction requirements are very high, if you want to install, you must find a professional installation, aluminum-plastic pipe can not be welded means that it can not be hot melt, you can go to Zhengzhou Jinde floor heating official website to see, to see if there is a suitable one.

Use PB pipe, because it is relatively more cold-resistant, and the corrosion degree is much better than that of aluminum-plastic, and it is flexible.

My home is an aluminum-plastic PP-R pipe, which is said to be more than 10 pressures.

When installing underfloor heating, there are probably two types of underfloor heating pipes that need to be used, PE-RT and PEX, both of which have their own characteristics. 1. PE-RT high temperature resistant polyethylene pipe, PE polyethylene plastic. Representative pipes:

Nanjing Pfister, Shenyang Jinde, Shanghai Tianan, etc., most of the raw materials are produced by DOW Chemical Company of the United States and BASF of Germany. 2. PEX cross-linked polyethylene pipe, PE-polyethylene plastic, X-cross-linked; Representative pipes: South Korea Dongming, Jilin Xinyuan, South Korea LG, Qinhuangdao Ritai, etc.; Most of the raw materials are HDPE XL-1800 geothermal pipes produced by LG Chemical Co., Ltd. in South Korea.

When installing floor heating pipes, which heating pipe materials should be purchased according to their actual situation, no one is absolutely good, and no one is absolutely bad.