Now our local AHJ is requiring emergency vents on UL 142 diesel fuel tanks be vented to outside. And because we will be adding pipe and fittings between the tank and the vent they want calculations to prove that the pipe size is adequate and the vent will operate as advertised. (It seems like only yesterday that we went through the tank overfill protection with float valves and remote level indicators, now this.)
Their argument is that the tank is "storage" and must comply with IFC 3404 and NFPA #30 even though the tank is connected through a closed fuel piping system to an oil fired piece of equipment. My read is that IFC 3401.2(3) references Section 603, 603.1 references Section 603 and the Int'l Mechanical Code. The Int'l Mechanical code references NFPA #37. NFPA #37 requires the normal vent to be piped out side but does not address emergency vents. Has anyone out there run into this before and do you or have you piped emergency vents to outside? I don't believe this jurisdiction has ever had a fuel tank for a diesel fire pump involved in a fire so the only history we have is no history. Thanks in advance for your thoughts. Ron Fletcher Aero Automatic Sprinkler Phoenix, AZ 85024 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
