PB pipe
(Polybutylene) is a polymer inert polymer. It was born in the 1970s. PB resin is a polymer complex synthesized from butene-1. It is a crystal with a special density (0.937) and is a soft heterogeneous body. . It is a high-tech product of organic chemical materials. It has high temperature resistance, durability and chemical stability and plasticity, tasteless, non-toxic and odorless. The temperature range is -30oC to +100oC. It has cold resistance and heat resistance. It is resistant to pressure, rust, corrosion, non-fouling, long life (up to 50-100 years), and has long-term aging resistance. It is one of the most advanced chemical materials in the world. [1]
Pb pipe physicochemical properties
It is a polymer inert polymer, and the PB resin is a polymer composite synthesized from butene-1. It is a crystal having a special density of 0.937 and is a heterogeneous body having flexibility. It is a high-tech product of organic chemical materials. It has high temperature resistance, durability, chemical stability and plasticity. It is tasteless, non-toxic and odorless. The temperature range is -30oC to +100oC. It has cold resistance and resistance. Heat, pressure resistance, no rust, no corrosion, no scaling, long life, up to 50-100 years, and long-term aging resistance, is one of the world's most advanced chemical materials. It has been widely used in many countries in the world. There is a reputation for "gold in plastics". [2]
Pb pipe material properties
1. Material properties and production process
Polybutene is odorless, non-toxic, and has high temperature resistance. The material is flexible and has good tensile and compressive strength. The softening temperature is 121 °C.
The density of the PB tube is 930 kg/m: similar to that of the PE tube.
2, production standards
There are not many manufacturers of PB pipes in China. Guangdong, Shanghai and Wuhan have introduced production lines to produce PB pipes. The national standard of China's PB pipe, the enterprise standard of the production enterprise is generally equivalent to the national standard of the country where the imported production line is located.
The diameter (outer diameter) of the PB pipe is available in the domestic 10mm, 15mm, 22mm, and 28mm specifications, and the foreign PB pipe has a diameter of l10mm.
The pressure bearing capacity of the PB pipe is related to the wall thickness of the pipe, and is related to the temperature of the medium-water passing through, especially the temperature of the medium.
3, connection methods, accessories
The PB tube can be mechanically clamped (plug-in) or hot-melt. Manufacturers have developed a variety of types of accessories, which can basically meet the needs of engineering applications.
4, performance advantages:
1. Light weight, good flexibility and simple construction: PB pipe weight is 1/20 of galvanized steel pipe, easy to handle, soft material, minimum bending radius is 6D (D: pipe outer diameter).
2, durability is good, non-toxic and harmless: because it is a high-density polymer, the molecular structure is stable, the service life can reach 50-100 years, and it is non-toxic and harmless, and no chemical reaction occurs.
3, anti-ultraviolet, anti-corrosion: PB tube is resistant to ultraviolet rays and microbes, and can make the water stored in it not deteriorate for a long time.
4, anti-freeze heat resistance: in the case of -20 ° C, has a good low temperature impact resistance, the pipe will not freeze and crack, after thawing, the pipe can be restored to the original, can withstand high temperatures below 100 °C.
5, the pipe wall is smooth, no scaling: compared with the galvanized pipe can increase the water flow by 30%.
6, good thermal expansion, advanced connection: the thermal expansion of the PB tube is about 1 / 60 of the metal tube, the expansion coefficient is similar to concrete. The connection method is an integrated hot-melt connection, so when the battery is buried, the movement of the pipe and the leakage at the joint due to temperature changes and water hammer can be avoided.
7. Energy saving: When the PB pipe is used for low-temperature ground radiant heating, energy can be saved by 30%.
8, easy to repair, transformation: PB pipe when buried, not bonded to concrete.
5, Hong Neng PB pipe application range:
1. Water supply (sanitary pipe) and hot water pipe: In terms of tap water and hot water pipes, PB pipe is recognized as a non-toxic, odorless and best durable pipe material. The most hygienic pipe.
2, heating pipe: due to its good insulation, construction and permanent durability, it is most suitable for the connection of the building and the underfloor heating pipe system. The most durable pipe.
3, industrial pipe for air conditioning: because of its corrosion resistance (acid and alkali resistance), non-toxic and tasteless, is the best pipe for chemical engineering, food processing engineering, general hospitals, industrial water and so on. Due to its high compressive strength, it is most suitable for use in air conditioning duct systems. The most stable tube for chemical reactions.
4, agricultural and horticultural tubes: because of its corrosion resistance, softness and UV barrier, it is used for irrigation, golf field sprinklers, farm underground heating and spraying. UV resistant and cracked the best tubing.
5. Snow removal pipe: It has a permanent life and strong impact resistance, and is especially suitable for snow removal pipes for roads, parking lots and playgrounds. Engage in good impact pipe.
6, hot spring tube: heat and pressure resistance outstanding, will not produce rust and scale, as a hot spring tube has an unparalleled effect. Corrosion-resistant, non-fouling pipe.
7. Pipes for automatic sprinkler system for fire protection: For the first time in non-metallic pipes, they have passed the UL specification of the United States and have been approved by FM. They are widely used as pipes for automatic sprinkler systems in developed countries. Pipes resistant to high water pressure.
8. The hot water pipe of the solar hot house: Because PB pipe has excellent heat preservation performance, it exerts excellent performance and effect on the warm water and heating system of the solar hot house. A tube with excellent insulation properties.
