Ductile iron pipe ductile iron pipe manufacturers embalmed 1. asphalt paint coating the asphalt lacquer coating is used to transport the gas pipeline. Preheating the pipe before painting improves adhesion of asphalt paint to accelerate the drying. 2. The cement mortar lining + special anti-corrosion coating such measures applicable to convey sewage pipes, can improve the corrosion resistance lining. 3. coal tar epoxy coating of coal tar epoxy coating both for the gas pipeline, k9 ductile iron pipe, also applies to sewers. It is a two-component coating, Ningxi k9 ductile iron pipe, the coating has high adhesion and very smooth surface 4. The ceramic epoxy lined ceramic epoxy lined suitable for sewers and gas pipes However due to the manufacturing process is difficult and costly, so there are some limitations on use. Ceramic epoxy lined with high adhesion and smooth finish, is an excellent anti-corrosion coating. 5. aluminate cement or sulfate cement coat coating both special cement coating are suitable for use in the sewers of ductile iron pipe corrosion, improve the ability to resist the erosion of acid wastewater constituents. 6. The polyurethane coating is a demand to adapt to environmental protection and research and development of a new type of green special coating, has good wear and corrosion resistance. Ductile iron pipe advantage: the low-pressure pipe, ductile iron pipe with a safe and reliable operation, breakage rate, easy maintenance construction, fast, excellent corrosion resistance and other shortcomings ductile iron pipe: ductile iron pipe is connected to accept human factors such as operating level, sense of responsibility and so a greater impact, not as good as the advantages of PE pipe construction convenient .PE pipe: PE pipe has good corrosion resistance properties of the anti inorganic stronger than metal pipe when burying does not require anti-corrosion to facilitate construction. Small diameter PE pipe is superior to steel and ductile iron pipe on the price performance .PE tube was Disadvantages: benzene, gasoline, carbon tetrachloride and other organic solvents have to have a certain effect on polyethylene. If the organic solvent to penetrate the polyethylene, k9 ductile iron pipe, there will be swelling of the physical properties on the decline, the pressure of poor performance resistant to temperature changes. Ductile iron pipe and high resistance to internal pressure and corrosion resistant, full strength and toughness. High impact strength, mechanical joint flexibility and scalability to facilitate joint construction, for normal soil conditions. Do not need to make special sand tube group. and may use excavated soil backfill, connectors variety, need to play at the original elbow tee cement fixed station has been newly developed protective skid off the elbow and tee k9 ductile iron pipe |.. k9 ductile iron pipe manufacturing | Virtue Pipe Co., Ltd. Liaocheng by virtue of Industry. k9 ductile iron pipe | k9 ductile iron pipe manufacturing | Industry virtue is virtue Liaocheng Industry Co., Ltd (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) this year launched a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest information, contact: Hvdroxide.