Approved Purge Burner

Started by BlindRiverPlumber, May 20, 2022, 01:06:26 PM

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BlindRiverPlumber

Hey there, I'm looking for options for an approved purge burner in Ontario. There seems to be few options on the market. I work in an Industrial refinery and need to purge Natural gas from our gas trains on a regular basis. I've reached out to TSSA with little luck. Anything that could point me in the right direction would be great.   

Admin

Are you purging air or actual natural gas?  I thought purging referred to removing air from the system.

Annex H of the B149.1-20 describes the 2 methods of purging.

QuoteH.5
The purging procedure shall be used only under the following conditions:
a) maximum piping system size is NPS 1;
b) maximum tubing size is NTS 3/4;
c) maximum piping or tubing system gas pressure is 2 psig (14 kPa);
d) maximum gas pressure at purging point is 11 in w.c. (2.74 kPa) or less; and
e) the longest run of pipe or tubing in the system is 100 ft (30 m) or less.

H.6
Piping and tubing systems not meeting the conditions listed in Clause H.5 shall be purged to the outdoors. Those that do meet these conditions shall be purged in accordance with Clause H.7.

H.7
The purging procedure shall be as follows:
a) Use only the approved purging assembly. See Figure H.1.
b) Inspect the purging assembly prior to use. Replace worn or damaged hose, and ensure that all joints are tight.
c) Ensure that the manual shut-off valve for the appliance is closed.
d) Connect the purging assembly to the appliance dirt pocket, where so equipped, or to the appliance piping, as close to the appliance as is practicable.
e) Ensure that no sources of ignition are present within the purge area and that the purge area is well ventilated.

If your conditions are found in H.5 then you can just run a gas hose outside and purge that way.

If you follow H.7 then try Mark Supply for the tool,

https://www.markssupply.ca/835277/product/hvac-accessories-ng-purge-kit