Basic Info.
Usage
Drainpipe, Water Supply Pipe, Threading Pipe, Wire and Cable Pipe, Agricultural Irrigation Pipe, Corrugated Pipe
Transport Package
Bulk Cargo
Product Description
HDPE pipe for water and sewer is manufactured for excellent performance and a long life expectancy.
- Its butt-fused joints eliminate potential leak points, common at 10 to 20 feet with ductile iron pipe, for a zero leak rate.
- Highly resistant to corrosion and weather, recent studies conclude it will last at least 100 years.
- Its light weight and flexibility make it easy to install, eliminate the need for fittings required with directional changes, and make it highly suitable for use in earthquake prone areas.
- Its high-strength walls give it the highest PE pressure rating, outstanding resistance to SCG and increased resistance to rapid crack propagation.
- The increased working stress rating of high-performance PE 4710 resin material makes it a superior choice over steel or ductile iron pipe, especially for the large diameter
pipe sizes.
HDPE pipe is a type of flexible plastic pipe used for fluid and gas transfer and is often used to replace ageing concrete or steel mains pipelines. Made from the thermoplastic HDPE (high-density polyethylene), its high level of impermeability and strong molecular bond make it suitable for high pressure pipelines. HDPE pipe is used across the globe for applications such as water mains, gas mains,[1][self-published source?] sewer mains, slurry transfer lines, rural irrigation, fire system supply lines, electrical and communications conduit, and storm-water and drainage pipes.BenefitsThe toughness and resistance to chemicals of polyethylene, as well as the corrosion resistance and low weight have contributed to its growing use in situations where cost-effective and durable fluid and gas piping systems are required. According to a press release from the Plastics Pipe Institute, "PE piping has been used for water and other fluids in Europe and America since the 1950s due to its durability, leak free joints, resistance to corrosion, and long-term cost-effectiveness."[2][self-published source?]HDPE pipe can be joined by butt welding, electrofusion welding, socket welding, or extrusion welding. These joints heat the pipe during the joining process, creating a completely homogenous joint so the weld becomes as strong, or stronger than the existing pipe on either side of the weld. There is no need to use rubber seals or jointing chemicals, as is used for joining PVC pipe, which cause environmental health issues and increase the chance of failure over time. PE is less likely to have problems with root intrusion, and provides integrity for the pipeline, even when installed in unstable soils.HDPE communications conduit pipe being installed by directional drilling in Perth, Western AustraliaDue to the fusion welded system, the need for anchors or thrust restraint blocks are eliminated, as the joints become fully end load resistant, reducing costs for material and installation time. This also allows for safer excavation close to the pipeline in future, which is particularly important for high pressure gas pipelines. Coils of PE Pipe make trench-less installation safer and less intrusive on the surrounding environment.HDPE Pipe Systems are available for many applications, providing for standard trenching of water mains, fire ring mains, sewer mains, and gas mains pipelines, as well as horizontal drilling for electrical and telecommunications conduits.[3] According to a company that manufactures HDPE, HDPE systems are cost-effective to install and have long-term maintenance cost savings, and also allow for cheaper installation methods, such as HDD (horizontal directional drilling), sliplining, pipe bursting, floating and submerged pipe.[4]HDPE pipe is very durable and flexible and can be bent on site to a radius twenty-five times the nominal pipe diameter - for SDR11 and SDR17 pipe, at or below 20°C ambient temperature. This provides major cost savings, when compared to different pipe systems, some of which require glued fittings, restraints or thrust blocks for even minor changes in direction. Because of the high impact resistance and flexibility of HDPE pipe, it is well suited to installation in dynamic soils including in earthquake-prone areas. HDPE pipe has very high flow capacity, because of its smooth bore and end-to-end jointing methods. HDPE pipe does not corrode in the environment, and will maintain its flow capabilities over time, unlike ferrous piping systems, which will rust and build up internal resistance to fluid flowing through it.[5][self-published source?]Because food-grade polyethylene virgin material is used to fabricate HDPE pipes, they are safe for the transfer of potable water, provided that any initial debris has been flushed out. HDPE pipe is resistant to many chemicals, facilitating its use in process plants or around corrosive or acidic environments, without needing to use protective coatings or galvanising, as is required on steel pipes. As HDPE has a very low thermal conductivity, it can maintain more uniform temperatures compared to metal pipes, when carrying fluids, which will greatly reduce any need for insulation to control condensation around the pipeline.
ManufactureTo make pipe lengths, HDPE resin is heated and extruded through a die, which determines the diameter of the pipeline. The wall thickness of the pipe is determined by a combination of the size of the die, speed of the screw and the speed of the haul-off tractor. Polyethylene pipe is usually black in color due to the addition of 3-5% of carbon black being added to the clear polyethylene material. The addition of carbon black creates a product which is UV resistant. Other colours are available but are less common. Coloured or striped HDPE pipe is usually 90-95% black material, with just a coloured skin or stripe on the outside 5%.The following shows the process for HDPE Pipe Extrusion:Freshly Extruded 800 mm (31.50 in) HDPE PipePolyethylene raw material is pulled from a silo, into the hopper dryer, which removes any moisture from the pellets. Then it is pulled by a vacuum pump into the blender, where it is heated by a barrel heater. The PE material becomes molten at around 180 °C (356 °F), allowing it to be fed through a mould/die, which shapes the molten material into a circular shape. After coming through the die, the newly formed pipe quickly enters the cooling tanks, which submerge or spray water at the pipe exterior, each one reducing the temperature of the pipe by 10-20 degrees. Because polyethylene has a high specific heat capacity, the pipe must be cooled in stages, to avoid deforming the shape, and by the time it reaches the "haul-off tractor," it is hard enough to be gently pulled by the 2-3 belts. A digital or powder printer, the size, type, date and manufacturers name is printed on the side of the pipe. It is then cut by a saw cutter, either into lengths of 3 or 6 or 12 or 24 meters (9.8 or 19.7 or 39.4 or 78.7 ft), or it is coiled to 50 or 100 or 200 m (164 or 328 or 656 ft) lengths on a coiler.HDPE Pipe with Blue stripesA different die is used for striped HDPE pipe, which has small channels that the coloured material runs through, just before it is pushed through the die. This means the stripes are formed as an integral part of the pipe and are not likely to separate from the main pipe body. Co-extruded, or co-ex HDPE pipe, has a second extrusion screw which adds an extra skin of colour around the black HDPE pipe, this allows the pipe to be coloured on the outside, for identification or thermal cooling requirements.UsesAn example of the durability of HDPE pipe is the 600 m (1,969 ft) long HDPE boom used for the Ocean Cleanup project. The HDPE pipeline is being released into the ocean to clean up the Great Pacific Garbage Patch.[7]HDPE pipe has been used in rural and mining environments in Australia for over 50 years, proving to be a very durable and effective means of fluid and gas transfer.[8][self-published source?]Life expectancyHDPE yellow jacket gas pipe, white jacket communications conduit, and orange jacket electrical conduitAlthough HDPE pipe is often estimated to last 50 years, they are in fact more likely to have life expectancies of 100 years. PIPA (Plastics Industry Pipe Association) and the Plastic Pipe Institute (PPI) have written technical white papers on HDPE design life. The PIPA paper is called "Life Expectancy for Plastics Pipes" which mentions that because of the fifty-year stress regression data, people[who?] falsely assume that plastic pipe systems' life expectancy is only fifty years. In fact, these pipe systems can be reasonably expected to last up to or more than 100 years.[5][self-published source?] In Australia, PE pipes and PE fittings were introduced during the mid-1900s, mainly for irrigation or water supply, but also for gas, fuel, and other industrial applications. The use of this 50-year time interval, leads to a misunderstanding that it represents a 50-year pipe life. For pipe systems that have been correctly manufactured and installed, the actual life cannot be predicted, but can be expected to be over 100 years until major rehabilitation is needed.
Address:
Ziqiu, Pingyi, Linyi City, Shandong Province, China
Business Type:
Trading Company
Business Range:
Chemicals, Construction & Decoration, Electrical & Electronics, Industrial Equipment & Components, Manufacturing & Processing Machinery, Packaging & Printing, Tools & Hardware
Management System Certification:
ISO 9001, ISO 14001, ISO 14000, ISO 20000, ISO 14064, IFS, FSC, ISO 17025
Company Introduction:
Shandong Yuete Pipe Industry Co., Ltd
Professional Manufacturer of Pipe products & fittings in China.
Since 2005, Yuete has been manufacturing pipe products& fittings for different kind of piping systems. As our businesses grew, we have expanded our product lines to plastic pipes, plastic fittings and plastic products. Our current product line includes PPR pipe & fittings, PERT pipe & fittings, PEX pipes & fittings, PB pipe & fittings, UPVC pipe & fittings, PP fittings & valves, brass fittings & valves, Construction tools and materials.
Based on years of leading technology and rich experience, we have established a distinctive management control system and passed the ISO 9001: 2008 certification.
The company has introduced the world′s most advanced technology and equipment, all of our pipes and fittings are made from environmentally friendly raw materials with sophisticated technology, their quality is highly guaranteed.
For 15 years, we have exported to 30 countries, where pipe fittings for plumbing are needed. We will continue to improve product quality and to serve more clients.
We will be committed to the business philosophy "Innovation, practical, highly effective, pursuit excellence" to give the best service to our customers.
