By coincidence, I am currently presenting a training program for fire inspectors and plans reviewers from the State of Qatar. I posed this question to them (Qatar is the world's 3rd largest producer of natural gas behind USA and Russia) and they affirmed that standards (a mix of NFPA with a little British) don't contain a reference to "compressed" natural gas, only LNG. But current canister technology allows compression up to 3600psi, and there is a wide range of working pressures and canister sizes for different applications. LNG and CNG are different - LNG is low pressure/higher volume ... not sure what the code implications are but they are different.
Sorry that's not much help, but they're definitely not the same thing. Steve L. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Richard Mote Sent: Thursday, April 10, 2014 8:27 AM To: [email protected] Subject: Compressed Natural Gas vs. Liquefied Natural Gas We are bidding a job that has one room (23' x 38') that is completed separated from the rest of the building by an 8" CMU wall, the only access is from the exterior of the building. This room is labeled CNG. The builder has identified that they will be storing compressed natural gas in cylinders. The only reference I can find to natural gas in NFPA publications is NFPA 57 for Liquefied Natural Gas. Do I use NFPA 57 for CNG or is there somewhere else I should be looking? Richard Mote ET Design Manager Rowe Sprinkler Systems, Inc. PO Box 407 Middelburg, PA 17842 P- 877-324-ROWE F- 570-937-6335 [email protected]<mailto:[email protected]> www.rowesprinkler.com<http://www.rowesprinkler.com> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler .org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
