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Author:
ronananda1 (NY)
I want to add a line off the natural gas line that goes into my house. The easiest way to do this would be to disconnect the union on the house side and insert the fitting for the new line close by. It is a line for my emergency generator. I have never seen a union like this (picture). It has a rubber piece. I am not sure how it comes off. Any help would be appreciated. Ron
[s68.photobucket.com]
Edited 2 times.
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Author:
holland123 (MI)
that is just a typical cold weather gas meter union, there will be a rubber gasket that you don't want to lose.
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Author:
Paul48 (CT)
Is there enough gas available? Is the meter sized correctly? Make sure those things are correct, before doing anything.
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Author:
steve (CA)
The black ring you see on the exterior is part of a dielectric sleeve, to break the electrical conductivity of your house piping from the meter and in-ground piping.
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Author:
srloren (CA)
Do you have room to put close nipples and a union in that space? It appears tight, but that is just a guess.
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Author:
ronananda1 (NY)
Thank you for all the response. Helpful. I am posting another picture and I have a follow up question. I plan to insert the new fitting after the elbow, on the longer nipple going down. I have plenty of room there.
But another question I had was the way a reducing nipple is used coming away from the meter. I wondered whether that would reduce the volume of gas moving past it. It is a larger (1 1/2" pipe going into the house. Does the smaller nipple reduce the volume potential of the larger pipe?
And, is there advantage/disadvantage to the way it was done?
Thanks in advance.
Ron
[s68.photobucket.com]
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Author:
North Carolina Plumber (NC)
The advantage is that the meter would be more expensive for the larger pipe. Around here all the meters are 3/4" and we go directly to 1" or 1 1/2" as soon as possible when exiting the meter.
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Author:
ronananda1 (NY)
Okay, that makes sense. Thank you. And I assume there is no loss of capacity putting it through a smaller nipple before going to a larger pipe?
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Author:
packy (MA)
you can easily fit a tee into the horizontal piece coming out of the union.
loosen the union, remove the whole piece (3/4" nipple, 1" nipple and 1 x 3/4 reducing coupling)
replace with a 1 x 3/4 x 1 tee and shorter nipples as needed.
then come out of the 1 inch branch of the tee with a short nipple and a gas cock. now you can turn the gas back on and light any pilots you have.
hint... loosen the union about a turn. then unscrew the piece you want out. leaving the union loosely in place will allow you to unscrew things but it will be more stable.
same with putting it back together. tighten the nipples into the tee out of place. then screw the new piece into the 90 and put the union back on. catch the union once again loosely then tighten everything. last thing is just tighten the union..
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Author:
Paul48 (CT)
How many cu/ft per hour is your generator rated for? What does the plate say for cu/ft per hour on the meter? Depending on the size of the generator, the gas co. may have to put in a larger meter.
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Author:
dlh (TX)
here where i am at the only places you see any gas meter that is not 1" in and out is commercial buildings. they different regulators or go to med/high pressure meters
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Author:
Paul48 (CT)
Here, the meters are rated in cfh. You have to add up all the appliances that use the gas, and make sure the meter's rated for that volume. Generators tend to use a lot of gas. I'm not afraid of gas, but I'd prefer not having medium or high pressure in the house myself. I've had a half-pound leak before.
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