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Old 2005-07-09, 9:23am
Dale M.'s Avatar
Dale M. Dale M. is offline
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Join Date: Jun 10, 2005
Location: A Little Bit West of Yosemite Valley
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There is a lot of things better........

First off the rules for propane storage may differ in a commercial zoning than a residential zoning situation... And from one area to another the country.

The best situation you can have is that propane tank be outside building, PERIOD. By placing it outside that keeps any possibility for propane that may be leaking from tank from accumulating inside building. Also be aware that a tank subjected to excessive heat (fire) will "blow off excess pressure" (tank safety valve) when INTERNAL PRESSURE of tank reaches 375psi, this may be caused by fire near location of tank. Best scenario would be tank placed in outside secure metal cabinet with ventilation holes top and bottom or a wire cage security enclosure..Also mark outside storage with "FLAMMABLE GAS" warning signs. By piping in gas in metal piping you remove danger of large volume of gas (tank) inside building. Propane should be piped in at LOW PRESSURE, NFPA codes state you can bring propane in at max pressure of 20psi. This can be done by having a fixed pressure regulator at tank. Also you should have shutoff valve (2) for gas piping one immediately before it enters building and other at "end" of piping before you distribute gas to adjustable regulator(s) or manifold (s) where hoses from torches attach. Each gas valve should be clearly marker that it is a "FLAMMABLE GAS SUPPLY" and clearly its "OFF and ON"" positions. Also suggest you include city building permits and inspection in piping processes and qualified or at least gas knowledgeable experienced people in plumbing process. Having it done right will cut down on liability issues with insurance and legal actions in case there is any litigation in case of fire or personal injury.

If situation is temporary, it still would be best to have hose long enough to keep tank outside... Temporary situation create a gray area where NFPA and local regulations may not apply. But good safety practices dictate tank be out side. Also where hose goes through doorways, use some sort of stop so hose is not pinched or cut by "closing" door.

Dale
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Last edited by Dale M.; 2005-07-09 at 9:37am. Reason: Fix some bo-bos
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