Which is better, ductile iron pipe and spray plastic pipe?
Ductile cast iron: the use of more than 18 by adding nodulizer, after centrifugal ductile cast iron machine high speed centrifugal cast pipe, called "ductile" (Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc.. The utility model is mainly used for conveying water, and is an ideal choice for tap water pipes.
Ductile iron pipe corrosion resistance, strength, it is said that the Ming Dynasty ordinary cast iron works now, and now has a new type of dedicated, can be used, construction becomes very convenient, ductile iron pipe has no effect on water quality. Plastic sprayed steel pipe is a new type of pipeline with higher price.
Spray pipe is: plastic composite pipe, steel pipe is a new composite material as matrix, through a special process in high temperature curing by walls melt spraying or adsorption of food grade epoxy powder coating or PE as raw material. It has excellent corrosion resistance and relatively small frictional resistance.
