testing natural gas header line

10-05-2012, 02:46 PM	#1
biggles Member     Join Date: Jan 2008 Location: Long Island Posts: 3,199	testing natural gas header line with compressed air or nitro what is typical pressure to hold and for and for how long...thanks

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10-05-2012, 02:54 PM	#2
hvac benny Member   Join Date: Dec 2009 Posts: 547	testing natural gas header line Air is what is used to test most gas lines. Nitrogen doesn't come into play until you have very large lines. Code minimum here is 15psig for 15 minutes, but yours may vary. Check with your local authority having jurisdiction.

10-05-2012, 06:48 PM	#3
ben's plumbing Member   Join Date: Oct 2011 Location: pa Posts: 3,199	testing natural gas header line inside house line...3lbs for 15.min....outside service line 90lbs for 10 min... here in my area of pa..ben sr

10-05-2012, 07:48 PM	#4
carmon Member   Join Date: May 2010 Location: winnipeg manitoba canada Posts: 692	testing natural gas header line wow.... Manitoba is 15-20 lbs for 15 min

10-05-2012, 07:56 PM	#5
hvac benny Member   Join Date: Dec 2009 Posts: 547	testing natural gas header line Quote: Originally Posted by carmon wow.... Manitoba is 15-20 lbs for 15 min Code minimum is 15/15 across Canada, as I'm sure you are aware. It seems that every inspector in BC wants 30psig. We test the service line to the meter at 100psig for 10min., but that's for a working pressure of 60 or 80 psig, depending on area. Last edited by hvac benny; 10-05-2012 at 07:59 PM.