Installing Gas Pipe
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- Опубликовано: 17 апр 2021
- I am finishing installing a new gas pipe for a generator. The gas pipe going into house to gas meter passed the air test/ plumbing inspection. Therefore I need to disconnect the test gauge. Then pipe the gas line into the generator. I put pipe dope to seal the pipe threads. The the threads are tampered. The pipe dope allows the tapered threads to seal against each other. Then I turn gas on and check for leaks. Afterwards I test the generator that it is getting gas. Finally I paint the gas pipe.
Thanks Bill, good straightforward video. Plumbing up a line for my portable generator now.
I've never installed with just dope and no teflon. Saves a lot of time I'll give this a shot
See you never did it the way i do. I only reckoned once with the yellow. Lately with the blue and black Teflon I’m seeing more Teflon used. I never have leaks on my gas fittings with only dope. Or I would Teflon. With water pipe I Teflon and tape.
It just takes a couple seconds to Teflon and pipe dope
Glad you used Blue Monster Teflon Tape. I wished you would use the Blue Monster White Pipe Dope with Teflon.
Thanks! Great vid.
wow , cant believe that flexible line is to code....I know your in new jersey ...just never saw it like that in new York,, ,enjoyed the vid Bill!
Manufacturer requires these due to engines moving somewhat on start. Helps protect steel gas pipe fittings vibrating loose.
@@howtohvac3234 , not really sure why New York would not be following the GAMA ( Gas Appliance Manufacturers Association) & the national gas fuel code rules on gas generator installations. You did a great job on your installation. I'm not a big fan of that type of connector used on generators. I prefer the braided vibration connectors, even if this type of connector is shipped with the generator, I refuse to use it ( it's just a glorified Appliance connector). Google/generator gas connectors/Calore Equipment & you will see what I mean. Just and FYI, some codes throughout the United States require the drip leg to be installed after the shut-off and the shut-off valve to go down to the off position ( fall to the off position, if you can visualize) but each to their own as long as the national code is followed.👍
@@boby115 their is a drip leg factory installed inside the generator. Right before gas ties into fuel solenoid. Our drip leg on outside is redundant yet for inspectors to see it.
@@howtohvac3234 👍
@@howtohvac3234 But not ALL generators have a drip leg installed from the factory.
In my area we always had to use galvanized schedule 40 pipe for all outdoor gas lines to prevent pipe from rusting.
In my area we use black steel pipe and paint. Not sure why in NJ galvanized is uncommon. Especially since NJ gets a lot of snow. Yet I have seen lots of rusty gas pipe. Only time I seen black pipe used for gas rot through was penetrating through a cement wall. Off the meter. Those pipes were rotted bad. Flaming apart. Usually I only see black pipe rot away on steam systems.
I NEVER use galvanized pipe to run gas line. Galvanized pipe has a tendency to flake. I ALWAYS run black pipe, and paint it when I'm finished.
Wrong. No galvanized. You use black steel pipe and fittings. Galvanized coating will flake off and clog the orifice. You paint the pipe, instead
@@elmono3939 I had a retired plumber from Ca Bay Area call me out using black pipe on his job, he said it was never allowed in the Bay Area, they were made to use galvanized for corrosion. Myself I do not care either way, I have never ever seen galvanized flake anything, I think it is an old wives tale. Not found in any code for sure.
@@nspro931: Definitely not a old wives tale. It is also not a Code, but manufacturer's recommendation. With that said, I also understand we all are used to different materials and installation methods - and we all claim "our method is the proper one." So be it. Checked with Inspector's network web site, and this is what they had to say regarding this topic: "...You do not want to use galvanized pipe for gas because of the galvanized coating. Over time pieces of the galvanized steel will flake off and clog your gas regulators and burner units. Never mix galvanized and black iron or where they touch corrosion will be accelerated...." Amen
In what area in the country was this done at? Blue Monster has a leak detector that will not freeze.
Did you tighten that flex with just your hand 💪?
At first I didn’t tighten with wrench. I usually like it to leak the air out when I first turn on the gas. It didn’t leak why at end I thought it would need a few cranks to start up. After the video I snugged it up more with wrench even though it sealed from hand tightening. Doesn’t take a lot of force to seal gas pipe. 7” w.c. = 1/4 PSI
Couple things. I'm assuming that's a generator & all generator manufactures provide their own flexible connector with specific installation instructions. I've installed & inspected many gas installs to generators & have never once seen a sediment trap on the inside of the unit. IFGC requires the sediment trap to be downstream of the shut off valve. Pipe dope is not a sealant it is a lubricant
Drip leg is factory installed inside of gender before gas solenoid. Not all units have a drip leg/ sediment trap inside. Look at the new Honeywell genders and it’s inside. I have been working on generators since 2010. Until Honeywell’s update I never seen it inside of the machine. Pipe dope is a lubercant. Yet also seals, if not why if you turn your wrench to the left to get proper angle of pipe. It will most likely leak?
It is actually a lubricant, because the the threads are pitched acts as a lubricant get the threads as deep as possible the threads actually seal not the pipe dope
Perfect 👌
Nice video, what area of the country are you in? I'm curious if you are near a coast.
I have a question, if you’re removing a section of pipe or a flex pipe and one of the pipes you don’t want to remove loosens a little. Can you just tighten up the one that moved a little and just tighten it? Or do you have to remove the pipe that moved a little and re-tape and dope it to reinstall!
Tighten it and test
Hello. Why the conection to the generator need a vertical tube (pipe leg before the ball valve =x=|| )?? Is it a residues colector or a pipe head for pick load?
Should be after ball valve
I hate flex line and never trust it, as a hvac tech I always hard pipe. No matter how much testing flex pipe has. We use a commercial grade braided line that is substantially stronger and not a cheap appliance flex line when we are worried about vibration
You absolutely MUST use a flex line on a generator install. No matter what brand, or what size generator, there will always be vibration.
I just had a question for anyone here, a recent had a very sm gas leak, and since then I have been planning to want to replace the black pipes with Proflex flak jacket CSST as a DIY, what I needed to know is can I go with thee exact same size as the black pipes that are currently in use, or do I need to go up a size when using CSST???
Don't DIY something that can blow up your house.
Yes its the same size, but HIGHLY suggest to call in someone. factors with bonding and so on. black iron is way less leak resistant. dont install if you dont know what you're doing.
Are hvac techs allowed to install generators?
The sediment trap goes after the valve....
❤
Work out from the main piece by piece Not the other way
The gas pipe is not allowed to be connected to the appliance until it passes the air test.
I dont see the point of the valve if the gauge leaks whether the valve is open or closed you wont know if there is a leak.
ya need 15 bro
Connecting two systems and theres constant tension? What am I watching
keep puting plires on that open female end of valve u going to have a football and no good valve
You are definitely not a journeyman plumber.
whats your license number brahhhhhhh
Great just what we need more gas furnaces
Smh a gas back up oh boy
More gas furnaces??
you mean the gas furnace covertly disguised as an electricity generator?
I see you guys are here for the gas furnaces
Nothing wrong with gas furnaces, heat is much warmer and cost much less that electricity. Even though the video is about generator hookup.
Uhhhhh I watched the video....no one installed any gas pipe in this ! Stop wasting my time. Change the title to connecting the gas flex to supply.