Oct. 07, 2024
Hardware
Ductile iron pipe is typically manufactured with larger inside diameters than steel pipe, resulting in lower pumping costs&#;and an average 21% savings in energy costs.
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While both types of pipe may have the same yield strength, steel pipe can be 35% thinner and does not include similar allowances in design calculations that Ductile iron pipe design has.
Installing steel pipe requires bonded coatings for corrosion control&#;either a cement-mortar coating or a bonded coating such as a tape-wrap. It is practically impossible to install steel pipe with bonded coatings without experiencing some coating damage from shipping and handling. Ductile iron pipe is routinely protected from corrosion through polyethylene encasement, which is applied at the job site&#;eliminating any shipping and handling problems.
During installation, steel pipe is not stiff enough or strong enough to stand on its own. Braces must be placed inside the pipe to hold its shape.
Steel pipe requires more side fill soil support against the external loads they will experience, increasing the difficulty of installation.
Ductile iron pipe has push-on joints that can be used to reroute the pipe, offering installers more field adaptability and flexibility and eliminating the need for line drawings necessary for steel pipe installation.
Advantage:
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Related links:Compared with PE pipe,
In terms of installation time, ductile pipes are easier and faster to install than PE pipes, and the internal and external bearing pressure is better after installation;
From the perspective of airtightness and corrosion resistance, the airtightness of the ductile pipe is better after installation, and the corrosion resistance performance can also be improved through a variety of anti-corrosion methods;
From the perspective of hydraulic performance, the ductile ink tube specifications generally refer to the inner diameter, and the PE tube specifications generally refer to the outer diameter. Therefore, under the same specifications, the ductile ink tube can achieve greater runoff;
From the perspective of comprehensive installation and maintenance cost, the ductile tube has a more superior cost performance. The inner wall is sprayed with zinc, cement mortar, and anticorrosive materials.
Disadvantages:
In the high-pressure pipe network, it is generally not used, and the pressure resistance is low. Because the pipe body is relatively heavy, machinery must be used for installation. If there is water leakage after the pressure test, all the pipes must be dug out, the pipes should be hoisted to a height that can be put into the clamp, and the clamp should be installed to prevent leakage.
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Post time: Jun-17-Previous: None
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