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...
I am looking into the coating approach now.
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+...
No, fuel is not stored on the roof, but in the case of a crash and fire on the roof the pipe would not prevent the crash, the pipe would safely convey the fuel saturated fluid to the fuel separator. Patient rooms are located directly below the helipad. In any building where fuel is being...
The system is discharging into a packaged fuel separator/tank buried in the yard the separator then discharges to the storm sewer. A year or so ago a sister hospital campus in the same city had a helicopter crash and explosion on the roof involving fuel spill and leakage and building damage...
The local AHJ is not accepting the ASTM A53, the only pipe the fuel code and plumbing code have in common is copper which has restrictions with the hydrogen sulfide level of the fuel.
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...
