PE (polyethylene) material is widely used in the field of water supply pipe manufacturing due to its high strength, corrosion resistance and non-toxicity. Because it will not rust, so, it is the ideal pipe to replace ordinary iron water supply pipe.PE water supply pipe executive product national standards: GB/T 13663.1-2017, GB/T 13663.2-2018 "polyethylene (PE) piping system for water supply part 2: pipe".
Pipe development: plastic pipes in China are developing rapidly, and the quality is constantly improving. Among them, polyethylene PE pipe is widely used in building water supply, building drainage, buried drainage pipe, building heating, gas transmission, electrician and telecommunication protection casing, industrial pipe, agricultural pipe and so on because of its own unique advantages. It is mainly used in the fields of urban water supply, city gas supply and farmland irrigation.

High-density polyethylene (HDPE) double-wall corrugated pipe, is a new type of pipe with a ring-like structure of the outer wall and smooth inner wall, was first successfully developed in Germany in the early 80s. After more than a decade of development and improvement, it has been developed from a single species to a complete series of products. In the production process and the use of technology has been very mature. Because of its excellent performance and relatively economic cost, in Europe and the United States and other developed countries have been greatly promoted and applied. In China, the promotion and application of HDPE double-wall corrugated pipe is in a rising trend stage, the technical indicators have reached the use of standards. Double-wall corrugated pipe inner wall color is usually blue and black, some brands will use yellow inner wall.

Plastic inspection wells, commonly known as plastic "manholes", are set up in plastic drainage pipe intersections, turns, changes in pipe diameter or slope, waterfalls, or straight pipeline segments at certain intervals, to facilitate regular inspection, cleaning, and dredging of the pipeline drainage accessory structures. Plastic inspection wells are mostly one-time injection molding, with reducer joints, angle joints and rubber seals and other accessories to achieve the change of pipe diameter and angle of the connection. Plastic inspection wells supporting the development of the cover, well and related accessories, road load through the cover, well seat around the role of the inspection wells, to avoid damage to the road load on the inspection wells. The well seat has the function of floating up and down, which can actively adapt to the changes in the height of the road surface. Meanwhile, the well barrel adopts the special well barrel, which can intercept the corresponding length according to the burial depth at the site, which is flexible and convenient. The connection between the shaft, water inlet (outlet) pipe and well base adopts rubber sealing ring flexible socket connection or heat-shrinkable sleeve connection, which can be adapted to a small range of angular changes, convenient and quick construction, good sealing performance, leakage prevention, effective prevention of secondary pollution of groundwater, and is a kind of environmentally friendly and energy-saving building materials. Plastic inspection wells can be divided into rainwater plastic inspection wells and sewage plastic inspection wells according to the use of plastic inspection wells, the application field is divided into building community drainage plastic inspection wells and municipal drainage plastic inspection wells.

Resin composite material manhole cover has many provinces and cities such as: Jiangsu, Zhejiang, Jiangxi, Anhui, Fujian, Chongqing, Hubei, Hunan, Henan, Gansu, Guangxi, Guangdong, Shandong, Hebei, Shaanxi, Sichuan, Guizhou, Yunnan, Shanxi, Inner Mongolia, Jilin, Liaoning, Heilongjiang, Ningxia, Qinghai, and other provinces and cities with resin manhole cover instead of cast iron manhole cover, resin manhole cover has a lightweight, high strength, excellent anti-fatigue properties, The resin manhole cover has the advantages of light weight and high strength, excellent fatigue resistance, breakage safety, simple molding, low noise, good chemical resistance, good acid and alkali resistance and beautiful appearance. Its comprehensive performance and economic indicators have exceeded the cast iron manhole cover, but also to solve the problem of cast iron manhole cover theft. It can also reduce the consumption of resources and has important economic and social value. According to the requirements of the Ministry of Construction, "1998 Ministry of Construction Industrial Products Standard Formulation and Revision Project Plan" (Construction Standard [1998] No. 58), a company in Heilongjiang Province, prepared by the "recycled resin composite material inspection manhole cover" standard, after review, approved as an industry standard, No. CJ/T121-2000, since June 1, 2001 onwards.

Resin manhole cover is also developing gradually. Compared with other well covers, its advantages are as follows:{7777777} 1. Long service life. The use of high-performance resins, glass fibers and special production process formulations to ensure that the resin penetrates into the glass fibers, so that the material will not cause internal damage under cyclic use, thus ensuring its service life. {77777}2. Beautiful and practical. Zibo Best can be customized according to the customer's requirements of pattern pattern and color, the appearance is beautiful and generous.
3. High and low temperature resistance, good insulation, not easy to corrode. Without metal additives, it has real heat insulation effect and can be used in complex and changing environment.
4. Good bearing capacity. The bottom adopts special structure to increase the bearing area, so that the product has enough bearing capacity.
5. Environmentally friendly and non-slip. At the same time, due to the light weight of the product, the cover and seat of the accurate locking, to overcome the other manhole cover "jumping, jumping, ringing, moving" problem. Green in the production process, the surface pattern can play the role of anti-skid.

Rib reinforcement winding corrugated (Ripple) pipe is a kind of pure plastic pipe, is now the initiative of pure flexible green drainage pipe (a drain). In the production (production) process (Technology), using (Use) the winding pipe and double-wall corrugated (Ripple) pipe technology (Technology) combination and technology (Technology) R & D upgrades, at the same time have (Have) the winding pipe production (production) process (Technology) is simple. Technology) simple, and corrugated (Ripple) pipe of the outer corrugated (Ripple) and backfill materials (Material Science) of the contact area of the advantages (Advantage), and, on this basis, through the R & D team's unremitting efforts, the pipe structure (structure) has been transformed, so that the pipe in the same ring stiffness conditions. The same ring stiffness conditions (condition), the weight (weight) significantly lower, while at the same time to solve the double-wall corrugated (Ripple) pipe complex production (production) process (Technology) brought about by the product (product) molding (Forming) difficult problem, and (also) can produce (production) out of double-wall corrugated (Ripple) pipe production (production) line difficult to produce (production) large-diameter pipe problems, in summary, hdpe standing rib reinforced winding wave corrugated (Ripple) pipe has a high cost-effective. {7777777}has the following characteristics (Characteristic): {7777777}1, standing rib structure (structure) gives the pipe high ring stiffness, good impact resistance.
2, the materials used (Material Science) for high-density (density) polyethylene and trace amounts of color masterbatch, so that the pipe's overall circumferential and axial flexibility, making the settlement performance (performance) is very good, the trench foundation requirements are low.
3, the inner wall is smooth, low friction, strong water capacity.
4, corrosion resistance (corrosion).
5, light weight, easy to carry, construction (construc

Plastic steel winding pipe (HDPE drainage pipe) has a strong resistance to pressure, can withstand the external environment such as soil and other pressure and impact, not easy to burst, reducing the chances of maintenance of plastic steel winding pipe!
Plastic steel winding pipe (HDPE drainage pipe) outer wall is a ring-shaped corrugated structure, greatly enhancing the pipe's ring rigidity, so that it can withstand the soil load pressure on the pipe. In many drainage pipes, after a few years of use, on the one hand, the pipe material changes, on the other hand, changes in the external environment of the pipe, so that the pipe can not withstand the external pressure of the pipe, there is a pipeline cracking situation.
Plastic steel winding pipe (HDPE drainage pipe) has high ring rigidity, and in the same bad environment, when you see other water supply and drainage pipes with such and such problems, the plastic steel winding pipe can be used normally as usual. In a better environment, the wall thickness of HDPE pipe can be reduced by half, thus reducing the cost.
Plastic steel winding pipe is a cost-effective product in the safety and cost of the project, as a new type of piping material, gradually widely used throughout the country!

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