How do you release air from a gas line?
Quote from the video:
Quote from Youtube video: It is to walk over shut off your wall switch. Turn your wall switch back on and it'll go through another 45 seconds. You should do that up to three times and that will get rid of the air in the gas.
What is gas purging procedure?
Purging is defined as: • the displacement of air, or an inert gas, by a fuel gas; or • the displacement of a fuel gas by air, or an inert gas. Purging to displace air or inert gas with a. combustible gas must take place immediately following a successful gas tightness test.
How long does it take to purge air from gas line?
Bleeding the Lines
While pressing the valve control knob in, press the igniter button repeatedly until the pilot ignites. This could take anywhere from one to 10 minutes to bleed air out of the lines as the gas starts to flow.
How do you seal the gap around a gas pipe?
The gas line entering into a manufactured firebox area of a fireplace, usually on the left or right side, often has a small gap around the perimeter of the gas line. This small gap should be sealed with a high temperature caulking or sealant.
Do you have to bleed natural gas line?
So, why is it so important that you bleed your furnace? It is important to bleed your gas furnace in case there is air in the gas line. If there is, you will not be able to ignite your gas furnace.
What is the difference between purging and ventilation?
After the contaminants have been removed (“purged”), the confined space may be ventilated. “Ventilation” means the continuous provision of fresh air into the confined space by mechanical means to maintain acceptable atmospheric levels.
Why we use nitrogen for purging?
Why Is Nitrogen Used for Purging? Nitrogen is dry and non-combustible, and the nitrogen displacement of combustible gases will prevent an unstable and potentially ignitable atmosphere.
What is the difference between purging and inerting?
Inerting differs from purging. Purging, by definition, ensures that an ignitable mixture never forms. Inerting makes an ignitable mixture safe by introduction of an inert gas.
Can expanding foam be used around pipes?
Moisture curing, polyurethane expanding foam, specifically developed for filling gaps around pipes and other plumbing applications. Adheres to most sanitary and plumbing materials; PVC, CPVC, copper, cast iron, chromed copper and chromed brass. Resistant to water, heat and ageing.
What to use to fill gaps around pipes?
Apply caulk or expanding foam around the hole. If the gap around the pipe is wider than an inch, use a solid material like sheet metal, plywood, or rigid foam to fill the hole. Fasten in place with adhesive or short screws and seal with caulk or spray foam.
Can I use Great Stuff around gas line?
Quote from the video:
Quote from Youtube video: And make sure the room is properly ventilated and do turn off your pilot lights and extinguish any open flames. Now when it comes to applying the great stuff just point the strong to the opening.
Do outside gas pipes need insulation?
While PEX is less at risk of freezing than copper (plastic doesn’t conduct cold the way metal does), both types of pipes need to be protected if they’re exposed to the weather. You don’t, however, have to insulate gas pipes. These are made of galvanized metal, which typically appears dull and heavy.
Can you use spray foam insulation around pipes?
Quote from the video:
Quote from Youtube video: So if you're looking at foam insulation to help present prevent something like frozen pipes you want to make sure are your pipes. Great against the outside wall if they are.
