Can ductile iron pipes be used for fire protection?
Ductile iron pipes are selected for outdoor buried pipelines. Indoor plumbing remains unchanged!
Galvanized steel pipes are not allowed to be used outside the ground. The so-called "strengthening corrosion prevention" is just a self deception!
1, not anti-corrosion, a few years on the rotten end. 2, not green. The zinc coating will react with the soil.Ductile iron black ink also known as its chemical properties determines its excellent anti-corrosion effect, is the most ideal material for buried pipeline.
