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Question:

What new technologies are there for the installation of ductile iron pipes?

What new technologies are there for the installation of ductile iron pipes?

Answer:

Because the new flexible interface mechanism of cast iron drainage pipe pipe in the development of China's relatively short history, compared with other drainage pipes, people know little of the present, with some experience of the author in the construction, the application of the performance, characteristics and engineering, to do some simple introduction.
Type W: type W tube in the same pipe with high strength, low noise, good fireproof performance, long service life, with the characteristics of flexibility and good seismic performance, but also has synchronous construction, utilization rate is high, easy to pipe, reducing the hydraulic test of pipeline clearing times, shorten the construction period to improve economic benefits. In addition, this type of interface with bolts in the lateral fastening, avoids the defects of socket flexible interface flange is easy to damage, close to the wall to the fixed bolt, has the advantages of simple operation, so in the selection of building drainage pipes and fittings, with strong competitiveness. In addition, because the length of W pipe is 3M, the number of intermediate joints is greatly reduced, and any length can be intercepted in accordance with the requirements, thereby greatly saving the pipe material, reducing consumption and cost. W type socket with stainless steel hoop rib clamp, lined with rubber ring flexible connection, seismic performance and good sealing performance, no leakage and allowed to swing in a certain range. Therefore, W tubes are widely used both at home and abroad.
At present, the international general no faucet pipe hoop straight pipe and fittings (i.e. new flexible joint cast iron drainage pipes and fittings of the thesis), according to the interface type is divided into A type flexible interface (flange gland connection) and type W (flexible interface coupling connection) two, referred to as A type and W type.1.1 new flexible joint cast iron drainage pipe by centrifugal casting technology, has a compact structure, pipe wall thickness, the outer wall is smooth, no trachoma and slag, the tensile strength and compressive strength are high, products with stable chemical composition, corrosion resistance, fire retardant non-toxic, comply with fire safety requirements of environmental protection, no noise, no deformation, life. Long use.Type 1.2A: type A tube with high strength, low noise, good fireproof performance, long service life, with the advantages of flexibility and good seismic performance, but in the actual project that socket joints need larger installation space and the tube body is heavy, consumption of steel, especially in high-rise buildings it is difficult to accept by construction.
The latest installation technology is the use of cast iron pipe special installation tools, a person can be convenient and efficient operation, 5 minutes an interface, very convenient, called cast iron pipe installation tool, you can search.

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