Plastic pipe is too much on the market now, what PPR canal, PE canal, PVC canal is waited a moment. Which a few kinds is what average life uses with water? How divisional hot conduit and cold water are in charge of? What application do they have? Heibei saves qualitative check academy below light industrial the product examines the ministry introduces the material of a few kinds of canals that often encounters in a few kinds of daily lives to everybody.
One, water supply uses hard pvc (PVC-U) tubal material. PVC-U conduit is with wholesome class polyvinyl chloride (PVC) colophony is main raw material, join right amount stabilizing agent, lubricant, filler, grace plastic extruder squeezes the classics such as the agent go out to shape and note model machine to note model to shape, . It is white commonly, product standard is GB/T10002.1-2006. PVC-U conduit has weight obstruction of light, anti-corrosive, current is small, managing fast of the sources of energy, installation, cost is low advantage. Main application is defeated by project of water supply of project of project of water water supply, water supply of building inside and outside, industrial and mining enterprises, ground to bury project of fire control water supply, irrigation and water conservancy to be defeated by water to irrigate in town tap water project, gardens is horticultural project of catchment of water supply of industry of project of afforest water supply, aquiculture.
2, cold hot water uses polypropylene (PP-R) tubal material. PP-R canal cries again 3 model polypropylene canal, use random copolymerization polypropylene to go out via squeezing make tubal material, note model to become pipe fitting. It is the product of new-style and plastic conduit that application develops at the beginning of 90 time of European. PP-R is 80 time end, use craft of gas phase copolymerization to make 5% or so PE is in the molecular catenary of PP randomly even polymerization (random copolymerization) and make material of new generation conduit. It has better anti-impact properties and long-term creep property. PPR provides stability of price moderate, function, heat-resisting heat preservation, anti-corrosive, wall does not written guarantee glossily on the safe side of system of dirty, pipeline, do not permeate, use fixed number of year can amount to 50 years. So-called never written guarantee dirty, never rust, never leakage, green is advanced water supply material. The product examines the standard is GB/T18742.2-2017. But demand of technology of PPR canal construction is high, need to use special tool and professional personage to undertake construction, just can ensure the system is safe. Main application domain is the cold warm water system of the building, include to centralize heat addition system; The heating system inside the building, include floor, wainscot and radiation heating system; But direct and drinkable clean water water supply; In the center of (center) air conditioning system; Carry or discharge chemical medium to wait industrial pipeline system.
3, ABS pressure provides material. The material of production canal material is propylene eyeball one butadiene of one styrene mix burden, give priority to with ABS colophony among them. Product standard is GB/T20207.1-2006. ABS plastic pipe can be used commonly indoors tens of year long, if be buried in underground or water,life is met longer. ABS plastic pipe can be used at the industry such as pharmacy and food, do not change water quality, won't form pollution 2 times.
4, water supply provides material with polyethylene PE. PE service pipe material is by it is main raw material with polyethylene, join a variety of processing aid, classics melt pushs the plastic pipe capable person that gives treatment to be made. Product standard is GB/T13663-2000. Stabilizing agent of heavy metal salt is not added when PE provides treatment, material does not have noxiousness character, without knot dirty layer, do not cause a bacterium, solved 2 pollution of urban drinking water well. Outside dividing a few strong oxidant, can be able to bear or endure of a variety of chemical medium erode; Corrode without electrochemistry. Below state of rated temperature, pressure, PE conduit but safety uses 50 years of above. PE canal tenacity is good, impact resistance is tall, the clog has controlled pipeline directly, won't cause conduit rupture. PE is in charge of hot frit or the intensity prep above of electric frit interface is in charge of material noumenon, juncture won't move as a result of soil or the action of vivid load disconnects. Conduit is qualitative light, solder craft is simple, construction is convenient, the project is integrated cost is low. Should be in in great quantities the city is municipal water supply.
5, cold hot water uses chloridize pvc (PVC-C) canal. PVC-C is polyvinyl chloride (PVC) a kind of when colophony and chlorine make below specific requirement new-style high polymer synthesizes material. Have function of machinery of admirable corrosion resistance, physics, report function and flame retardation, use temperature can amount to 110 ℃ , product standard is GB/T18993.2-2003. PVC-C provides material significantly the characteristic is the function that fight bacterium, pass a lot of tests to confirm, the bacterium inside PVC-C canal is not easy breed, its bacterium increase rate is the 1/60 that PEX is in charge of, the 1/10 of copper pipe, the 1/4 of steel tube. Bacterium of the army group in its sample counts a test to measure the 1/13 that is in charge of for PEX, the 1/17 that PP-R is in charge of.
6, cold hot water uses polybutene (PB) tubal material. PB is material of polybutene high polymer, this material weight light, flexibility is good, anti-corrosive, high temperature resistant. Insipidity, without smelly, avirulent, it is one of chemical material with quite at present high content of the science and technology on the world, be known as " plastic medium gold " . The PB tubing that makes with PB material is system of the advanced water supply on current world, heating with conduit, euramerican developed country is used extensively already, replace copper pipe to make the first selection of conduit of hot water water supply. Can use for a long time when 95 ℃ , use temperature can amount to 110 ℃ . Have be able to bear or endure goodly sex of environmental stress craze, and tubal material is qualitative light, withy, impact resistance is good. Product standard is GB/T19473.2-2004.
