Ed, Thanks for the suggestion. I took a look at both the ROP and ROC and nothing really deals with the emergency vents, just the normal vent or it refers to vents generic.
Does anyone know why there has to be a normal vent, minimum 1.25" and an emergency vent with a spring loaded cap? Why not make the normal vent the same size as the emergency vent, leave the spring loaded cap off and just use a rain cap on the larger line? As you read this we are piping two 3" lines to 12 ft. above grade with cast iron vent caps and one 1.25" normal vent with a rain cap. Ron Fletcher Aero Automatic Sprinkler 21605 N. Central Ave Phoenix, AZ 85024 P: 623.580.7836 F: 623.434.3420 C: 602.763.4160 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Kramer Sent: Tuesday, April 28, 2009 12:13 PM To: [email protected] Subject: RE: Diesel Fuel Tank Emergency Vent Ron, it may not help your situation, but the NFPA 20 ROP and ROC contain proposed revisions that would provide guidance on tank design. Ed Kramer Littleton, CO > Class II combustible. > > Ron Fletcher > Aero Automatic Sprinkler > 21605 N. Central Ave > Phoenix, AZ 85024 > P: 623.580.7836 > F: 623.434.3420 > C: 602.763.4160 > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ed Kramer > Sent: Monday, April 27, 2009 8:25 AM > To: [email protected] > Subject: RE: Diesel Fuel Tank Emergency Vent > > Ron, good catch. Is diesel fuel considered 'oil'? I didn't find any > obvious definition (in 30 or 31). > > Ed Kramer > Littleton, CO > > > > > NFPA #30 1.1.2 Thiscode shall not apply to the following. > > (8) Storage, handling and use of fuel oil tanks anc containers > connected > > with oil-burning equipment. > > > > Ron Fletcher > > Aero Automatic Sprinkler > > 21605 N. Central Ave > > Phoenix, AZ 85024 > > P: 623.580.7836 > > F: 623.434.3420 > > C: 602.763.4160 > > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of Ed > Kramer > > Sent: Friday, April 24, 2009 10:04 PM > > To: [email protected] > > Subject: RE: Diesel Fuel Tank Emergency Vent > > > > Ron, sorry I'm a bit late on this. > > > > NFPA 30 section 27.8.1 and A.27.8.1.6 may be helpful. 27.8.1 implies > > vents > > need to be piped outside, though it doesn't specifically say it. > > > > Ed Kramer > > Littleton, CO > > > > > > > Our local AHJ is requiring that we pipe the emergency vents of a 150 > > > gallon UL 142 fuel tank outside. I have two questions. > > > > > > Are the vents required by code or standard to be piped outside? > > > > > > If we pipe them outside how do we calculate the added pipe and > > fittings > > > to be sure the vent will still operate properly? > > > > > > Thanks for your help. > > > > > > 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) > > _______________________________________________ > 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:Sprinklerforum- > [email protected] > (Put the word unsubscribe in the subject field) _______________________________________________ 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) _______________________________________________ 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)
