Pipe introduction
The polypropylene (PP) silent drain series has improved the problem that the flexible cast iron pipe cannot resist acid and alkali corrosion. The product adopts a three-layer co-extrusion production process. The raw material is a recyclable environmentally-friendly impact copolymerized polypropylene resin and a special sound absorbing material. After modification, it has good noise reduction, quiet performance and chemical resistance. Performance and heat resistance. The pipe is widely used in the construction field and can be used for drainage and drainage of office buildings, high-end apartments, hospitals, nursing homes, embassies, schools, AAA-class residences and industrial buildings.
Unique advantages
In addition to its light weight, non-toxicity, corrosion resistance, aging resistance and high impact resistance, the polypropylene silent drain series products also have the following specific energy:
1. Superior chemical resistance. The polypropylene silent drainage pipe system can discharge the liquid with pH value of 2～12, completely avoiding the cast iron pipe from being resistant to acid and alkali, and the pipe wall is easy to form point-like and pore-like corrosion, and the use of many repair operations is greatly improved. The service life of the system.
2. Excellent impact resistance. Although the PP silent drain pipe is not as strong as the impact resistance of the metal pipe, it is sufficient for the use of high-rise buildings. The flat test (not broken, not split) and the ring stiffness test (≥12kN/m2) by the National Chemical Testing Center are sufficient to show that it is one of the best products in plastic drainage pipes. The pipe replaces the cast iron pipe "in the form of a rigid steel" with a prominent "soft-made" physical elastic feature, which avoids the disadvantage that the cast iron pipe is fragile and fragile.
3. Convenient and quick installation. The total mass of the polypropylene silent drain pipe is only 20% of the cast iron pipe. The pipe and pipe fittings adopt the socket type flexible connection and the rubber ring seal, which is convenient and quick to install. The expansion joint is not used, the installation cost is reduced, and the pipe is saved while the pipe is saved. The maintenance, maintenance and modification are also particularly convenient, that is, the “disassembled and ready to install†is realized; the “pipe hoop†pipe fitting is different from other pipe fittings, and there is no “limit deviceâ€, which can facilitate the disassembly and assembly of the pipe system.
4. Excellent low noise emission. By adding special sound absorbing materials to adjust the internal microstructure of the pipe, absorb audible and sound waves, and prevent sound waves from coming out. By using the "plug-in connection", the noise is prevented by the sound flowing to the next pipe when the water flow hits the pipe wall, thereby further reducing the noise.
5. Superior high temperature resistance. The specially modified inner layer polypropylene resin can withstand the hot water discharge of about 95 °C for a long time while maintaining its original good impact resistance and long service life, ensuring the dishwasher and disinfection of the residents. Long-term use of cabinets and water heaters.
6. Excellent environmental performance. The non-toxic and recyclable nature of the product avoids environmental pollution. The use of socket-type flexible connection eliminates the need for adhesive bonding in U-PVC products, eliminating the contamination of formaldehyde and benzene in the interior (the adhesive contains a large amount of formaldehyde and benzene).
7. Excellent cost performance. This product can significantly save construction costs. Since the polypropylene raw material is a general-purpose plastic, its cost is lower than that of cast iron material, and the polypropylene has recyclable recycling characteristics, and the use of socket connection without other accessories makes the engineering cost of the polypropylene silent drain pipe much lower than the flexibility. Cast iron pipe.
Promising domestic development prospects
In the 1990s, polypropylene mute drains first appeared in Europe, and subsequently became more and more widely used in new homes in Europe and North America with many advantages such as noise reduction, hot water discharge, and chemical resistance. At the beginning of this century, some domestic plastic pipe equipment manufacturers represented by Zhejiang Shuanglin Plastic Machinery Co., Ltd. began to develop polypropylene ultra-quiet drain pipe production line and achieved success, which greatly promoted the application of polypropylene silent drain pipe in China. development of. As a result, our country has a brand-name product that rivals the Dutch WAVIN products. With the rapid development of China's economic construction in recent years, the people's living standards have improved, and the requirements for residential buildings have become higher and higher. The smooth drainage network is one of the important infrastructures of a building and even a city, which can provide a strong guarantee for people's life and production. As a new product to replace cast iron pipe, polypropylene ultra-quiet drain pipe will undoubtedly be widely used in China's building drainage engineering due to its superior quietness and advanced flexible connection.
Shuanglin polypropylene silent tube production line introduction
Main technical features
The production line uses two new precision extruders with PP-H special screw, three-layer co-extruded composite mold, which is precisely metered by melt metering pump and then cooled by special vacuum sizing. Equipped with online chipless cutting chamfering device, the cutting surface of the product is flat, the element is burr, and the pipe installation and insertion is more convenient.
The whole line adopts PLC closed-loop control system, man-machine dialogue interface, easy operation, single machine adjustment, full-line linkage, fault automatic alarm appearance, and stable and reliable production.
Concerned about surprises
Tag: Silent Chemical resistance Telescopic joint Closed loop control system Polypropylene resin
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