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1. Corrosion resistance
PPR pipes and fittings can resistant to most chemical corrosion; it can withstand PH value range 1-14 high concentration of acid and alkali corrosion over a wide temperature range.
2. Installation performance
PPR pipe PPR pipe is light in weight, and the operation installation is easy, which make it available to weld again. It is very important that pipe and pipe fittings can be welded together in seconds with a simple tool. Compared to traditional connection methods it can save 40%~50% of the time.
3. Safety Indicators
The basic component of PPR is carbon and hydrogen which is simple. It keeps in line with food hygiene regulations, non-toxic. If you use PPR pipe, there will no dirt in the inner wall or “secondary water pollution” caused by rust any more.PPR pipe ,green building materials, is more suitable for transporting drinking water.
Advantages of PPR pipe
1. Maximum operating temperature can up to 95℃; it can work in a long term under the condition of 70℃ and 1.0Mpa.
2. PPR pipe density is only 1/8 of metal pipe; pressure resistance strength test is up 5Mpa, with good toughness, impact resistance.
3. Inner diameter of PPR pipe is little bigger than that of pipe fittings, which can ensure not to increase the resistance to fluid flow.
4. Inner wall of PPR pipe is smooth, no rust, no scaling, small fluid resistance
5. PPR pipe has excellent insulation properties, can significantly reduce the vibration and noise caused by the flow of liquid.
6. PPR pipe energy consumption is only 20% of steel pipe; its thermal coefficient is also only 1/200 of steel pipe, reducing heat loss greatly.
7. PPR pipe is poor electrical conductor material, which can avoid galvanic corrosion phenomena.
8. With poor thermal conductivity, PPR pipe can reduce condensation.
9. PPR pipes, fittings are recyclable.
1. Hot and cold drinking water supply system of civil and industrial buildings
2. Clean, pure water piping system
3. Beverage production and transport systems
4. Industrial liquid delivery system
5. Central air conditioning system
6. Hot water circulation Heating System
7. Compressed air piping system
8. Garden and greenhouse irrigation systems
PP-R pipe as a new pipe, has the following characteristics:
1. The production of energy saving PP-R pipe is only 20% of the steel pipe, and its low thermal conductivity [0.2W / (mK)], is only 1/200 of steel pipe, used in hot water systems will be greatly reduced heat loss.
2. Corrosion-resistant, non-scaling, hygiene, wall using non-toxic PP-R pipe can be removed from the use of galvanized steel pipe caused by fouling, rust and water quality caused by the "secondary pollution." Since PP-R component simple, basic component of carbon and hydrogen, in line with food hygiene regulations, non-toxic, more suitable for transporting drinking water.
3. Heat, pressure, long life and long-term use temperature of PP-R pipe up to 95 ℃, short-term use temperature up to 120 ℃. The temperature is 70 ℃, working pressure of 1.2MPa conditions, the long-term continuous use, life expectancy up to 50 years.
4. Lightweight, high strength, fluid resistance PP-R pipe density of only 1/8 of metal pipes, pressure resistance strength test up 5MPa, and good toughness, impact resistance. The smooth wall has no rust, no scaling, fluid resistance. The main technical indicators PP-R pipe is as follows: the density of 0.9g / cm3 modulus of elasticity (20 ℃) 800MPa thermal expansion coefficient of 1.8 × 10-4 / K thermal conductivity of 0.2W / (mK) longitudinal shrinkage rate of 2% impact ≤10% hydraulic test short-term trials breakage rate 1h, ring stress 16MPa no leakage long 95 ℃, 1000h, hoop stress 3.5MPa no leakage table 1 performance comparison of several pipe material.
PP-R pipe in addition to general plastic pipe has a light weight, corrosion-resistant, non-scaling, long life and other characteristics, but also has the following main features:
1. Non-toxic, health. Molecular material PP-R only carbon and hydrogen elements, no harmful toxic elements are present, reliable health, not only for hot and cold plastic water pipe, can be used to clean drinking water systems.
2. Thermal insulation. PP-R pipe thermal conductivity coefficient of 0.21w / mk, steel is only 1/200.
3. Good heat resistance. Vicat softening point of PP-R pipe 131.5 ℃. Maximum operating temperature of up to 95 ℃, plastic water pipe can meet the water supply and drainage requirements specification hot water system.
4. Long service life. PP-R pipe in working temperature 70 ℃, working pressure (P.N) 1.OMPa conditions, the service life of up to 50 years; at room temperature (20 ℃) the service life of up to 100 years.
5. Easy PPR installation, reliable connection. PP-R has good welding properties, pipe, pipe fittings can be used hot-melt and fused connections, easy PPR installation, the joint firm, which is greater than the strength of the connection portion of the strength of the pipe itself.
6. Recyclable materials. After cleaning, after crushing PP-R waste can recycle in pipe, tube production. If recycled material amount does not exceed 10% of the total, does not affect pp-r pipes and fittings product quality.
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