Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
(OP)
I designed a hospital roof helipad drain system around fuel gas code considering life safety issues of patients. I specified ASTM A53 schedule 40 steel pipe with welded joints (Schedule 40 ERW with welded joints was installed). Will the corrosion characteristic of this pipe support the storm water requirements? What would be the life expectancy of this pipe in a storm water application?





RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
You might check with the code/AHJ to even see if you can use ASTM A53 piping for storm.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
Look at the plumbing code for a material that would be compatible with the fuel components.
But if it is going to a storm system and has fuel in it, you will have problems.
You cannot discharge fuel laden water to the storm.
You could use an automated discharge basin that will only let the water be discharged. They use them to discharge rain water collected near above ground storage tanks for diesel fuel.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
stormceptor
http://www.stormceptor.com/en/
parallel plate Oil/Water Separators:
http://www.brentw.com/water/oilwater.html
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
The AHJ might have an issue with corrosion; however, since you are using schedule 40, you have a good corrosion allowance. You might consider an internal coating if that's his issue.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
The problem I'm having with the installed piping is coming up with proof that it is superior to acceptable materials listed in the plumbing code. I have many telling me the schedule 40 welded will last longer than I will be alive (25+ years...hopefully) but the issue is proving it to the AHJ. Does anyone have a way of proving this?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
It would likely mean getting a variance from the code, but if you show the plumbing inspector that the A53 pipe is used to convey pure fuel - with no problems and that it will be more corrosion resistant than cast iron to the water and put your PE stamp on it - he will likely have to accept it.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
Tee-hee, let the arguments continue!
I'm inclined to listen to pennpiper and BigInch on this one.
Do storm water systems now have to be designed for every possible spill situation? What if a particularly nasty bodybag (could theoretically happen) ripped-open spilling unknown toxins onto the surface? Would the helipad have to be designed according to CDC design criteria with moon suited professionals ready to take charge of the situation?
Perhaps this is just a proposed justification to over-engineer something or someone over-analyzing potential scenarios.
I've been highly allergic all my life - do I, as a reasonable person, expect the world to change for me? No, I take the more reasonable approach.
At some point, reason has to take over, but the trend seems to be towards "well, if we can put a man on the moon, why can't we completely de-toxify the environment for everyone that could be ever possibly affected if only the tiniest way?".
Sheesh.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
http://www.perma-liner.com/perma_lateral.html
I just talked to a fellow who worked on the relocation of Helipad at a local hospital (Florida) who said that the drainage for the pad area was tied into an existing C.I. roof drain with C.I. pipe. He didn't know what code was used as that part of project was handled by the plumbing contract. All water and air piping was 31.3.
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?
Designing this for hydrocarbons does seem like overkill. Following the same logic, what would we have to do now with normal storm catchments along the street? Design them for tanker truck spills just because it might happen some day?
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Should schedule 40 ERW ASTM A53 piping be used for storm drainage?