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11-25-2014, 07:32 AM
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#21
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Rivet Master 
2016 30' Classic
Hinckley
, Ohio
Join Date: Sep 2009
Posts: 909
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LP Flex Line Inside the Airstream?
I was taught that the double flares were for high pressure apps. Seeing as the propane line has less than a 2 pound pressure a double seems like overkill. But error on the safe side. If you have the double flare part of the tool use it, it won't hurt. Flaring a double require an extra step.
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__________________
My budget won't stop me from buying something online that I don't need, but the threat of getting promotional
emails every day for the rest of my life just might!
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11-25-2014, 07:33 AM
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#22
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Rivet Master 
Commercial Member
Vintage Kin Owner
Naples
, Florida
Join Date: Dec 2005
Posts: 7,514
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Like the old info-mercial says: 'SEALS FIRST TIME.....EVERY TIME!'
Lew Farber
RVIA/RVDA Nationally Certified Master Tech
Master Tech Energy Systems, Inc.
AM Solar Certified Installation Center
Lifeline Batteries**Magnum Inverters
541-490-6357
__________________
lewster
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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11-25-2014, 10:56 AM
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#23
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Rivet Master 
1981 31' Excella II
New Market
, Alabama
Join Date: Sep 2011
Posts: 6,149
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For what it is worth, I plan to put about 20psi on my lines to check for leaks. That will show up smaller leaks using soap compared to .5 psi of propane.
20 psi of air that is.
Perry
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11-28-2014, 05:38 PM
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#24
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3 Rivet Member 
1967 20' Globetrotter
denver
, Colorado
Join Date: Aug 2010
Posts: 154
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Well I tried to use the original copper flexible gas line for my new refrigerator installation and discovered a crack where it go crimped.
So now that we know I need to use flexible copper, what size copper line do I need, what are the sizes of the female couplings and most importantly, where do I buy them cut and built to size?
Thank you.
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11-28-2014, 07:27 PM
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#25
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Rivet Master 
2016 30' Classic
Hinckley
, Ohio
Join Date: Sep 2009
Posts: 909
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LP Flex Line Inside the Airstream?
Well you won't find a copper flex line, they are not made. You can purchase male pipe x flare adapters and use regular tube. Home Depot sells flex lines they come with the special metric adapters. Although the only size you may find is 1/2 or 3/4. I think what you want is 3/8. 3/8 flex line will be very hard to come by. I though they used it on fire place logs and lamp post. So you may want to try a fireplace shop or a place that sells propane lamp posts
__________________
My budget won't stop me from buying something online that I don't need, but the threat of getting promotional
emails every day for the rest of my life just might!
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11-28-2014, 07:30 PM
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#26
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Rivet Master 
1981 31' Excella II
New Market
, Alabama
Join Date: Sep 2011
Posts: 6,149
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My Fridge uses 3/8" copper.
Perry
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11-28-2014, 11:01 PM
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#27
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Rivet Master 
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton
, Arkansas
Join Date: Mar 2013
Posts: 5,868
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LP Flex Line Inside the Airstream?
Go for a straight connection with flared 3/8" tube, ditch the flex line. It is just trouble.
You can leave extra length on the 3/8 tube to allow for a measure of flexibility.
1/2 Ton 4WD Truck, 72 Sovereign Hensley Arrow
__________________
The fact that I am opinionated does not presuppose that I am wrong......
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12-06-2014, 09:47 PM
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#28
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2 Rivet Member 
1978 Argosy Minuet 6.0 Metre
Athens
, Georgia
Join Date: Apr 2014
Posts: 52
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Flex line or soft copper?
The copper tubing that comes in a coil (10 or 20 feet usually) from a hardware store is smooth, is soft enough to bend, and I think that is what one might, incorrectly, call "flex" tubing. The flex tubing is not smooth, it has coiled ridges and pre-attached end fittings, and is not good for trailer propane (as mentioned). The soft copper line can bend, but be careful not to kink it! It should be slowly bent. 3/8 inch tubing will usually bend to a radius of, oh let's say a gallon tea jug, before one must be VERY careful not to kink it.
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12-06-2014, 10:08 PM
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#29
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Maniacal Engineer
1971 25' Tradewind
Lopez Island
, Washington
Join Date: Jan 2010
Posts: 1,244
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If tight bends need to be made and the piece of tube is removeable when bent, filling it w/ fine sand and taping the ends over w/ duct tape will support the tube during the bending process.
- Bart
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12-06-2014, 10:12 PM
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#30
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Rivet Master 
2007 22' International CCD
Corona
, California
Join Date: Jul 2013
Posts: 9,182
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Or you can get spring benders that go over the tube to prevent linking when you bend it tight.
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__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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01-11-2015, 05:32 PM
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#31
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Osogofind
1975 25' Tradewind
Austin
, Texas
Join Date: Mar 2011
Posts: 12
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I am an extreme novice ( or was) when I installed my water heater replacement. It required some serious tube bending - almost 90 deg at about a 2" or 3" diameter. Spring benders saved my bacon- takes patients tho!
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