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Be careful when purchasing the pipes you need, as pipes may be of relatively poor quality if you purchase them incorrectly, which can lead to serious problems over time or during installation and will cost you money. More to replace purchased pipes. If the seller and the buyer both think of each other for profit and believe in a simple win-win formula, quality and durable pipe will be sold and the pipe will be bought at the best price commensurate with the quality of the pipe. It can be difficult and difficult when you are dealing with obscure information that will not work for you. So here are a few basic points to consider when shopping. Buying a pipe because of its significant use and applications in the industry has tips and hints that if you pay attention to it you can make a great purchase and save considerable money on the project.
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Polyethylenes are a family of thermoplastic polymers (thermoplastics) that account for the largest share of plastics consumption in the world. Easy and easy, impact resistance, abrasion resistance, excellent chemical resistance, excellent fluid flow inside the tube, easy connectivity, high flexibility and versatile connections. That’s why the use of these pipes is increasing day by day. One of the most important factors in the replacement of steel pipes with polyethylene pipes is their permeability to chemicals. Organic and inorganic chemicals have a significant influence on the performance of metals compared to metals. Various factors affect the quality of polyethylene pipes, the most important of which are: (Amount and uniform addition) – Amplifier (such as reinforced polyethylene With glass fibers) – Production process: This part of the production depends heavily on the machinery and skill of the technical personnel – Environmental factor: Application of polyethylene pipe (water pipe or sewage and even for what kind of industrial water consumption or ..).
– Ultraviolet Beam: Specific Applications (Radio waves – Magnetic Waves) – Microbiological Effects – Stress Factor: Temperature (set in standard PE life assuming a temperature of 20 ° C for 50 years. Where temperature is not 20 ° PE life is different. will be. Temperature is the temperature of the fluid, not the environment. If the polyethylene pipe is on the ground, the fluid is the same as the environment, but if the underground, the temperature is lower than the environment)- Temperature fluctuations (We have temperature fluctuations in sewer pipes but we do not have water in the pipes which cause the fluctuations to wear out) – Static load: or dead load (the pipe beneath the soil is pressurized to the weight of the soil. If the tube is also under fluid pressure, these two pressures will partially offset the effect, otherwise the pipe will be damaged)- Bardynamic: or traffic load (if the pipe crosses the path that the machine is traveling in, the pressure will be higher, it will be difficult to bear this pressure for sewage pipes that do not have fluid pressure)- Slit and scratch- Welds: (Most joints are butt welds. If the temperature exceeds the limit, it will affect the life of the pipe and the system will cause problems at the welding site).
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The Polika tube is actually the same U-PVC tube that was the first manufacturer of this type of polka tube to be known in Iran. This type of tube is retained. The polyka tube has all the properties of U-PVC material and is badly damaged and long lasting. This pipe does not rust and does not rot. For this reason, PVC pipe is widely used in aquatic systems, underground wiring and sewer lines. U-PVC (PVC) is one of the most consumed polymer materials after polyethylene. It has long been regarded as a growth material by U-PVC and with all the talk it has been about, and Despite the various limitations on its use, a future with economic growth is envisioned for this material. Almost 90% U-PVC (PVC) pipe manufactured worldwide by one of three extrusion and injection molding processes The final product is converted. The most extruded PVC pipe is used in the manufacture of polycha pipes (pressure water pipes, water and sewer pipes). The polycha pipes having the highest technical and mechanical properties meet the economic and environmental requirements in the world. They provide today. The newest model of the Polycarbonate (U-PVC) family of water and wastewater pipes worldwide is a non-leakable, easy-to-install PVC pipe. The PVC pipe (UPVC pipe) is one of the first and most popular polymer pipes Widely used and manufactured and marketed in various types of PVC pipes with different applications.
PVC pipes are badly damaged and have a long life span, and due to their high resistance to environmental conditions, they quickly gained popularity and were able to transport sewage, water supply and fluid transfer in many projects. Apply. Polycarbonate tubes, with the highest technical and mechanical properties, meet the economic and environmental needs of today’s world. The most recent model of the Polycarbonate (U-PVC) family of tubes used for water and sewage worldwide The upvc tube is actually the first tube of this type, called Polica, which became known in Iran and was popularly known as Polica The UPVC tubes were chosen in gray and the name Polka stayed on this type of pipe. The PVC and UPVC tubes are now widely used The most common type of pipe is in buildings and construction projects, the most widely used upvc pipes for sewage transportation. Silent tubes (silent tubes) are also manufactured and marketed.
Where to buy PP and PVC pipes at low prices?
What is a carogite tube?
Double-walled polyethylene pipes, or karogite pipes, are referred to as pipes with two walls, one with an outer corrugated or loop-like appearance, and one inner layer of pipes having a flat surface that permeates fluids with properties Acidic wastewater and games and industrial effluents are used. Carogite pipes do not have an internal load pressure, meaning that the fluid passing through these pipes does not have an internal charge pressure and these pipes are practically a groundwater flow fluid. The carogite tubes also have an outer surface that is ring-shaped and They are of high strength and undergo all surface and subsurface pressures, both living and dead, beneath the surface of the earth due to the looping of the pipe surface due to the strength of the pipe. They are classified (by external pressure pressure) as being sixteen / thirty-one and a half / sixty-four kilotonnes respectively, each having a particular use in terms of soil surface type and surface and subsurface pressure. Nowadays we see carogite pipes as such in our world, in the streets and alleys, with yellow interiors and black cross-sectional surfaces. In fact, the only method of production is different in that the polyethylene material is produced and pressed into a single piece of carbonate tubes, but in the production of spiral-tube, the method of production is very different. By extruder that produces the pipe profile after cooling and passing the water inside the tub It is then gradually rolled into a spiral and is interconnected by a web of interactions. After adhering the inner layer of the tube, which is yellow, sits on the inner wall of the tube and on the profiles and is defined by rollers. The high pressure is attached to the tube.
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Types of polyethylene pipes
Polyethylene pipes can be classified into several general categories: • Single wall polyethylene pipe • Double walled polyethylene pipe • Irrigation pipe • PEX • PERT Single wall polyethylene pipe: Single wall PE pipe Includes polymer tubes that can be used at pressures ranging from 2 to 40 bar, with different diameters. The unique characteristics of polyethylene pipes compared to other types of pipes lead to the rapid growth of this product in transmission and distribution networks. As has been the case in the last fifty years, with industry advances in the field Production of polyethylene pipes and polyethylene fittings has introduced itself as a good replacement for metal pipes, PVC, GRP and cast iron and has been able in many cases to replace such pipes. The generation of pipes falls into the category of PE 40,32, 80, 100 in the category of polyethylene pipes. The characteristic number listed in these polyethylene grades is the type of MRS material that is said to be the minimum internal pressure resistance required after fifty years of operating at a fluid temperature of twenty degrees Celsius. . The minimum internal pressure is reported to be about 8 MPa for PE 80 and about 10 MPa for PE100. Accordingly, many efforts have been made to replace PE100 with PE80 in many countries. Polyethylene is mainly used for buried gas and water lines and for the construction of construction pipes. For this wide range of applications, polyethylene has become the dominant material in various materials in the country. The most important of these features can be mentioned: 1- Polyethylene shows very high impact resistance even at low temperatures . Proper behavior of PE against impact shrinkage to break is one of its important advantages in many applications, for example in areas where there is a high risk of earthquakes.
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2- Due to the non-polar nature of PE as a high molecular weight hydrocarbon, PE has a high resistance to chemical attack. PE has good resistance to acids, alkali. PE is resistant to oxidizing acids, ketones, aromatic hydrocarbons and chlorinated hydrocarbons.3- If polyethylene is exposed to direct sunlight for a long time, like many natural and plastic materials, by UV wave. Sunlight will be damaged and degraded by the oxidation process with oxygen in the air. This is why most PE pipes are resistant to UV light by adding carbon block.4 – PE pipes can be used in the temperature range from -50 ° C to +60 ° C. At higher temperatures, the tensile strength and hardness of the materials are reduced, and PEs have a linear thermal expansion coefficient of 0.15 to 0.20 mm / m 2, which is 1.5 times higher than PVC as long as this is considered during installation planning. , There is no problem with this. Thermal sensitivity is 0.38 W / m K. Because the insulation properties are achieved, the PE pipe system is significantly cheaper than a metal-like copper system.5- Polyethylene is a flammable plastic. The oxygen index reaches 17%. (Materials with 21% oxygen in air are burned) .6 Due to the low absorption of polyethylene water, its electrical properties are severely affected by continuous water contact. However, these properties can be drastically reduced due to contamination, effects of oxidation media or ambient air. Major applications of single layer polyethylene pipes:
• Urban and Rural Water Supply Networks • Urban and Rural Wastewater Networks • Drainage Networks • Liquid and Industrial Wastewater Systems • Pressure Irrigation Systems (Drip and Irrigation Systems) • Moving Irrigation Systems • Cable / Cabling Fiber Optic Coating • Power Cable Coating • Steel Pipe Coating • Ventilation Ducts • Gas Supply (indicated by yellow bar)
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Types of pvc pipes
The upvc pipes are manufactured in porous, twisted, threaded, adhesive and welded models, each depending on their application. Mostly, upvc pipes are used for conveying non-pressurized or low pressurized fluids, and these joints use common connections, but for high-pressure fluids welding joints must be used. U-pvc pipes Nowadays they are not only used in buildings and are very trusted in drainage applications and most of the pipes and drainage equipment are upvc pipes. U-PVC (Polyka) Pipe and Benefits
UPVC Tube Resistance to Corrosion: U-PVC (polyka) tubes are insensitive to electrical current and are resistant to electrochemical reactions caused by acids, bases and salts that lead to corrosion in metals. This feature exists on the inner and outer surface of the PVC pipe. As a result, the use of the U-PVC pipe is very cost-effective in applications where the aggressive soil is present. It is also resistant to most corrosives such as inorganic acids, bases and salts. For routine water supply operations, U-PVC pipes are completely resistant to chemicals in soil and water. And flexibility: Resistance to breakage of U-PVC pipes is one of their important performance benefits. Under load, U-PVC pipes can deform without breaking. U-PVC modulus of elasticity is one of its major advantages for technical applications, especially when soil movement or vibration is likely (earthquake, etc.). The high value of this quantity minimizes the double-sided phenomenon in these pipes.
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Also, as the thickness of the sewage pipes is determined by the modulus of elasticity of the resin used in the pipe construction, the high U-PVC modulus decreases the pipe thickness and increases the cross-sectional area of the flow. Long-term tensile strength: U-PVC pipes (Polyka) are formulated to have high long-term tensile strength. It is higher than the corresponding values for other plastic pipes such as PE. This is an important advantage because of its high weight, light weight: High strength of U-PVC reduces the thickness and lightness of these pipes. U-PVC pipes have a significant lightweight advantage that is an important safety aspect. Easy transport, minimizes work damage and facilitates cheaper installation and transportation. Sealing joints: An important advantage of any sealing pipe is its connections. The high penetration depth of U-PVC pipes and push-fit systems has been able to overcome many of the traditional products through this advantage.
Scratch and abrasion resistance: U-PVC (polyka) tubes show very high abrasion and scratch resistance. PVC pipes have been proven to have a much higher durability than metal, cement and earthen pipes to deliver slurry. Impact strength in UPVC pipes: Under normal conditions, U-PVC pipes have relatively high resistance to impact damage. Compared to clay pipes, cement and most other materials are common in pipe making. Although the impact strength of U-PVC pipes is reduced at very low temperatures, the impact strength is still higher than required. U-PVC pipes have a very low resistance to fluid flow due to their highly polished inner surfaces (roughness coefficient and low friction). They accumulate (forming biofilm) and gradually block the flow of water, which in turn reduces the pressure of the stream and adversely affects the health of the drinking water.
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Low Roughness in UPVC Pipe: Pipe roughness is an important factor in causing pressure drop and discharge reduction. U-PVC pipes show very low resistance to fluid flow due to their highly polished inner surfaces (coefficient of friction and low friction). They accumulate (biofilm formation) and gradually block the flow of water, which in turn reduces the flow pressure and also adversely affects the health of the drinking water. Reduce pressure drop, prevent sludge from settling in sewage networks, and reduce the probability in drinking water distribution networks. Pollution. Therefore, the maintenance costs of these pipes are low and the initial design of the pipeline is also optimized. It ensured that the levels of lead, tin and other toxic elements such as mercury, worm, cadmium and barium were below the standard permissible limits.
Latest price list of PP pipes in global market
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Currently, different types of polymer tubes are used instead of traditional metal and concrete pipes. Different factors should be considered when comparing the benefits of PE and other polymer tubes. Nowadays one of the competitors of polyethylene pipes is PVC pipes. PVC pipes have great properties but are not resistant to heat and flame and they are spot-on. PVC pipes will lose their properties against UV radiation. Also, PVC pipes cannot be used at high temperatures because of their low performance. Polyethylene pipes are more flexible than these pipes. Both polyethylene and polypropylene pipes are fully sturdy in such a way that even polypropylene can be used for molding. Polypropylene pipes are less resistant to UV radiation and lose their properties. But these pipes(Polyethylene pipes) are resistant to chemicals and acids. ABS pipes and polymers reinforced by glass fibers are highly resistant to use in composite composites. Recyclable. Signs of recycling and environmental standards are also visible on the body of the pipes.