The drainage pipe is made of high-speed centrifugal casting, with dense structure, no trachoma, slag pores, smooth surface, non-combustibility, non-toxicity, corrosion resistance, low noise, light weight, earthquake resistance, easy installation, and small expansion and contraction coefficient. As an excellent water supply pipe, the drainage pipe should have the following characteristics: high strength, corrosion resistance, high pressure resistance, low accident rate, long service life, and high elongation.
The main drainage pipe fittings used in water supply and gas pipeline engineering, iron pipes with corrosion resistance are 30 times that of gray iron pipes, and their service life is longer than gray iron pipes. Various performance comparisons determine its replacement performance for gray iron pipes. Because of its brittle material, low strength and toughness, the traditional gray iron pipe adopts mechanical interface, and cannot withstand high internal and external loads during use. It is often unavoidable to explode, break, break, and crack. When the geological conditions and external load conditions change, the pipe body is prone to brittle fracture, dislocation accidents, and leakage. Now it has basically withdrawn from the market. Drainage pipes can provide large-caliber products with high transportation and safety costs, and are currently only used in areas with lower economic levels; drainage pipes have a short service life, relatively complicated construction, and high engineering costs.
Forged pipe fittings are the first choice for water supply pipes, which have a high cost performance. In terms of installation time, the drainage pipe installation is simpler and faster, and the internal and external bearing pressure is better after installation; from the perspective of airtightness and corrosion resistance, the drainage pipe has better airtightness after installation, and various anti-corrosion measures can also be used to improve corrosion resistance. Performance: From the perspective of hydraulic performance, the drainage pipe can achieve greater runoff; from the perspective of comprehensive installation and maintenance costs, the drainage pipe has a more superior cost performance.
Due to the continuous construction and development of economic highways, people's awareness of environmental protection has become weaker and weaker, and the ecological environment on which drainage pipes depend has been seriously damaged. The drainage pipe adopts environmentally friendly raw materials. During the laying and use of the drainage pipe, it will not cause any serious damage to the soil and water source. It is in line with the modern society's environmental protection concept, which is an extremely humane performance.
While the development of industry has brought benefits, the drainage pipe is very strong, not to mention the anti-corrosion effect, and to a large extent the damage to the piping system caused by external pressure is avoided. The inner wall is not treated with anti-corrosion treatment, so long-term immersion in water will also rust, which will cause the service life of the drain pipe to be shortened, the pressure of the water supply is reduced, and the water is cut off in some areas. The inner wall of the drain pipe must be treated with anti-corrosion.
Drainage pipe has the characteristics of simultaneous construction, high pipe utilization rate, easy pipeline clearing, reduced hydraulic test times, shortened construction period and improved economic benefits. This type of drainage pipe interface is fastened with bolts on the outside, avoiding the defects that the flexible interface flange of the socket is easy to be damaged and the bolts against the wall feet are difficult to fix. It has the advantages of simple operation and so on. The drainage pipe is used in construction drainage pipes and fittings. Medium, has strong competitiveness.
