In recent years, China’s actual estate business keeps developing rapidly, in all sorts of buildings of water provide and drainage is extremely important, and using the improvement of science and technologies and also the improvement of people’s living standard, water supply and drainage technology also gets the corresponding improvement. Pipe is among the most well-liked subject in construction drainage technology. At present you will find twenty or so water supply pipe within the market, metal pipe, steel-plastic composites pipe and plastic pipe all have their respective utilizing circumstances and applicable scope, and they are related to engineering requirements, medium temperature, pressure, water quality, environmental circumstances, technical, economic along with other elements closely.


Because the construction from the first tap water factory of our nation, conventional galvanized steel pipe continues to be utilized as the developing water supply line. Nevertheless, this kind of pipe isn’t great for people’s health for it’s simple to corrode that will result in water pollution. The previous dozens of years, rapid economic development, people’s living standard and also the environmental protection consciousness are each enhanced, the conventional galvanized water provide pipe simply because cannot meet the modern environmental requirements and has enhance steadily be eradicated. Ductile iron pipes have come into use for the outstanding anticorrosive performance, sealing effect and ductility.

You will find numbers of benefits in ductile cast iron pipes. Ductile iron pipe functions safe and dependable operation, lower breakage, and convenient upkeep, fast construction, outstanding anticorrosive efficiency amongst the numrous pipes. Noticed from leakproofness and antiseptic property, ductile iron pipe performs much better, a number of techniques can be used to enhance enhancing anti-corrosion efficiency. Seen from hydraulic performance, simply because ductile iron pipe specs generally refers to inner diameter, PE pipe specs usually refers to outside diameter, below exactly the same specification circumstances, ductile iron pipe can realize more runoff. Speaking of complete installation and maintenance cost, ductile iron pipe has more superior cost ratio.

The main elements of ductile iron pipes are carbon, silicon, manganese, sulfur and phosphorus and magnesium. With easy installation, ductile iron pipe is primarily utilized in water provide, gasoline transmission and oil transmission of municipal, industrial and mining enterprises. It’s the very first choice of water provide pipe, has the extremely higher performance-price ratio. Compared with the PE pipes, in the installation, ductile iron pipe is much more simple and quick than PE pipe, and following installation the within and outside bearing stress is better.

Ductile iron pipe also has drawbacks as there’s no rose dawn away a thorn. The human factors this kind of as operation level and responsibility may influence the connection of iron pipes sometimes. PE pipe has much better corrosion resistance efficiency and resistance of inorganic than metal, buried installation doesn’t need corrosion prevention. Polyethylene that is main component of A519 alloy steel pipes tubing and benzene, gasoline and so forth natural solvent has particular influence to this materials. If natural solvent permeate polyethylene, there might be swelling phenomenon, its physical properties will fall, the resistance to pressure and temperature variation isn’t so good.