Piping Materials for Salt Water Environment
Piping Materials for Salt Water Environment
(OP)
I am replacing a 4" domestic water line and a 10" salt water fire line under a pier. Thinking of using copper or 316 stainless for the domestic and ductile iron for the fire line. Does anyone see any problems with this?





RE: Piping Materials for Salt Water Environment
Cheers,
gr2vessels
RE: Piping Materials for Salt Water Environment
RE: Piping Materials for Salt Water Environment
Cheers,
gr2vessels
RE: Piping Materials for Salt Water Environment
FRP for both would be a good option.
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Plymouth Tube
RE: Piping Materials for Salt Water Environment
It probably also makes sense for pipe-on-supports applications that may be exposed e.g. to aggressive sea/salt spray and wet and dry cycles etc. to be provided with a good quality primer and finish coating system, to minimize exterior corrosion and improve aesthetics, if those are concerns. It is best in these cases to order the ductile iron piping specially made from the manufacturer with the primer, as opposed to a standard asphaltic coating system per AWWA standards, in that the latter greatly complicates surface preparation and finish coating of those pipelines (if the asphaltic is not the finish coating desired). It probably also makes sense to provide some padding between the pipe and supporting/bracing systems, to reasonably protect same. It may be best to contact the manufacturers and/or consultants familiar with surface preparation and application of finish coating and on ductile iron pipe for specific recommendations on coating systems.
Ductile iron piping is also available in the 4" size.