In 1965, the Austrian Plastics Association had the first polybutene (PB) heating piping system, which was very exciting. The system is still in operation today. The following will take everyone to understand the performance advantages of the next pb pipe and the seven "most" related information of the PB pipe.
Pb pipe performance advantages:
1, light weight, good flexibility, construction is simple: PB tube weight is galvanized steel pipe 1/20, easy to handle, soft material, the minimum bending radius of 6D (D: tube outer diameter).
2, good durability, non-toxic and harmless: Because it is a high-density polymer, molecular structure is stable, the service life can reach 50-100 years, and non-toxic harmless, no chemical reaction occurs.
3, anti-ultraviolet, anti-corrosion: PB tube anti-ultraviolet radiation and microbial infringement, and can make the storage of water for a long time without deterioration.
4, good resistance to freezing and heat resistance: In the case of -20 °C, has a good low temperature impact resistance, the pipe will not freeze, after thawing, the pipe can be restored to the original, can withstand high temperatures below 100 °C.
5, smooth wall, no scaling: compared with galvanized pipe can increase the flow of water 30%.
6, good thermal expansion, advanced connection methods: PB tube thermal expansion is about 1/60 of the metal tube, expansion coefficient and concrete similar. The connection method is an integrated hot melt connection, so that when the pipe is buried, the movement of the pipe and the leakage at the connection due to the temperature change and the water hammer phenomenon can be avoided.
7. Energy conservation: PB tubes can save energy by 30% when used in low-temperature ground radiation heating.
8, easy maintenance, transformation: PB tube buried, do not bond with the concrete.
Pb tube specifications and uses
The reason that pb tube is used in large quantities is because of its superior physical properties. Long service life, large circulation, pb tube has entered our daily life, pb tube has good flexibility, excellent impact resistance, earthquake resistance, abrasion resistance Performance, impact strength is superior to metal pipes, and is 4 times longer than steel pipe life in transporting ore and mud. Hygienic, non-toxic: Non-toxic material, no bacteria, in line with national health standards, under the conditions of use, life expectancy exceeds 50 year. The inner wall is smooth and the flow resistance is small. The pipe head loss is more than 20% smaller than that of the same specification steel pipe.
Has significant economic benefits: low cost, low investment, compared with metal pipes, can reduce engineering investment by about 1/3. Easy to install, reliable: light weight, easy to handle, easy to bend, simple welding process, construction speed, making the pb pipe to become the preferred material for the project.
For the specifications of the PB tube, it is divided into six series of S3.2, S4, S5, S6.3, S8 and S10 according to the size. Polybutylene (PB) pipe system according to the provisions of GB/T 18991-2003, according to the use of conditions selected 1,2,4,5, four application levels, see Table 2 below, each level corresponds to a specific range of applications And 50 years of service life, in practical application, should also consider 0.4MPa, 0.6MPa, 0.8MPa, 1.0MPa different design pressure. The quality of the pipe is mainly determined by the pressure capacity and wall thickness of the pipe. Tubes produced by different manufacturers have different thicknesses. Level 1 pb tube, TD °C60 use time 49 years Tmax °C80 use for 1 year, supply hot water range 60 degrees. In the medium 20oC, system pressure 16bar, medium 70oC, system pressure 10bar and medium 95oC, system pressure 6bar under three different conditions can guarantee safe and reliable operation for 50 years, safety factor 1.5.
Seven "most" of PB tubes
1, the best sanitary pipe.
2, the best durability of the pipe.
3, the chemical reaction of the most stable pipe.
4, anti-ultraviolet and cracking on the best pipe.
5, high impact of good pipe.
6, the most corrosion-resistant, non-scaling pipe.
7, the most resistant to high pressure pipe.
Summary: The relevant information on pb pipe is introduced here for everyone. I hope the efforts of Xiaobian can help you. If there is anything we do not understand, we can leave a message for Xiaobian below. We will answer your questions as soon as possible. This site will provide you with more complete, more detailed and updated information.
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