iron ductile pipe corrosion
iron ductile pipe corrosion
(OP)
We have a 4" iron pipe that carries ground water from a submersible pump to the water distribution pipes in our plant.
The first 4" elbow from the pump fails twice a year from corrosion.
The pump runs 24/7.
The ground water is high in iron.
what type of corrosion is occurring? Is this electroysis corroding the pipe?
Will replacing this iron pipe with stainless prevent this?
I will appreciate any comments or suggestions to correct this problem.
Thanks
Tom
The first 4" elbow from the pump fails twice a year from corrosion.
The pump runs 24/7.
The ground water is high in iron.
what type of corrosion is occurring? Is this electroysis corroding the pipe?
Will replacing this iron pipe with stainless prevent this?
I will appreciate any comments or suggestions to correct this problem.
Thanks
Tom





RE: iron ductile pipe corrosion
RE: iron ductile pipe corrosion
The pressure on the line is 80psi.
The wells pump very little to no sand.
The iron content is 2ppm.
Usually the corrosion occurs on the outside radius.
Thanks
Tom
RE: iron ductile pipe corrosion
If some mechanism of wear on the back of the ell fitting is however involved, I also am not sure "stainless steel" ell/piping would solve the problem, as I suspect the SS fittings are normally promoted with a thinner wall, and the stainless steel might even be some softer than the ductile iron you have now!
In any case I believe ell fittings or linings where particularly abrasive effects occcur may be available from some sources (and might even be adaptable in some fashion to your set-up), and I have even seen in the past even some quite special elbows with special sort of bolt-on/removable/replaceable wear pads on the outside of the bend where wear occurs in extreme services.