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02-26-2018, 08:19 AM
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#1
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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TWO propane regulators - huh!?
Last fall on our last trip I had what I thought was an auto changeover regulator failure. I switched bottles to the roadside and went back to heat and stove use then bought a new auto regulator to install this spring. Today I wandered out to see if I should also install a new hose as well (yes) but also found that I have a second, single stage regulator of some sort on the curbside bottle line. It's located on the black iron pipe cross over to the other bottle, hoses and auto changeover regulator. This is far from my first 5er or TT with two propane bottles. Without pulling that regulator out of its almost hidden location can't figure out what it really does. Anyone else have this and if so, have a clue? I'll order a new one with that new hose but.......
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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02-26-2018, 08:55 AM
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#2
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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It is a 30 psi regulator required by regulations when propane tanks are separated by XX feet.
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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02-26-2018, 09:10 AM
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#3
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Montana Master
Join Date: May 2011
Location: Hixson
Posts: 3,436
M.O.C. #11397
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jcurtis934 is correct.
__________________
2018.5 Montana 3791RD
Full Timers 9/1/2010 through 1/16/2020.
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02-26-2018, 09:17 AM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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An earlier discussion about that regulator.
http://www.montanaowners.com/forums/...egulator+valve
And many of us have had to replace that regulator due to leaking.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-26-2018, 10:58 AM
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#5
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Thanks for the info. Learn something new every day -- thankfully
OK, I understand but it really makes no sense. If it's 59 inches long without this low pressure regulator or 61 inches long with regulator, the same potential for a problem exists regardless of that dimension. Oh well some committee had to do something
It sounds like I have 2 choices - remove it entirely or better yet, find a replacement. Since I'll be replacing it, is there a manufacturer and part number? Marshall-Excelsior have several with the MEGR-230 or MEGR-230-9 being a couple that I've found that may work.
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02-27-2018, 05:25 AM
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#6
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Looks like no one recalls what replacement they used, so I'll grab a couple tools and look then report back for others future reference
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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02-27-2018, 08:28 AM
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#7
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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I did use a Marshall 30 psi regulator when I replaced mine. But that was a number of years ago and I don't remember the model number.
As far as the length specified by NFPA, I know from my experience on the committees (not that particular committee) that they try not to leave anything to interpretation. They could have said "a length appropriate to not allow any significant accumulation of condensed propane in the line" and everyone could say "Oh that would be about 30 ft". So they chose what they consider the limits they are willing to put in writing and feel it is a safe measure.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-27-2018, 08:41 AM
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#8
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,365
M.O.C. #4831
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According to previous history and experience here, the regulator is
part # C6121#2049 30psi From Marshall controls. There used to be numerous sources but the original posting of information is from 2009. I have no idea if Montana still uses this regulator or they have found a cheaper alternative.
http://www.montanaowners.com/forums/...p/t-37246.html
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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02-27-2018, 09:36 AM
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#9
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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I noticed the Marshall 230 is a low pressure regulator. It shows a green color on Marshall web site. I believe the OEM regulators are high pressure regulators. I know the originals were typically red. I think you need the 6121 that Carl noted above. They both show a max inlet pressure of 250 psi, so I have no idea what the difference is.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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02-27-2018, 10:49 AM
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#10
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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It warmed up enough so I could get the existing regulator off. It's a brand I have never heard of - a Fairview GB-630. This one is marginal with 100psig inlet pressure and 500K Btu outlet @30psig
I looked at the Marshall MEGR-6121-30 but that one may be the Rolls Royce of 30 psig regulators but only has an inlet pressure of 100psig. I also looked at the Marshall MEGR-130-30 which seems to be a better one for RV use with inlet pressure of 250psig ( https://www.marshallexcelsior.com/st...pressure-fixed ) and a million Btu output.
I'll be ordering this one, Marshall MEGR-130-30 along with a new 20" pigtail
BB & Carl, Thanks for pointing me in the right direction (and Carl, the 6121 may no longer be available)
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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02-27-2018, 11:34 AM
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#11
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,952
M.O.C. #5651
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Just FYI. The tape for propane connections is different than regular pipe tape (I learned). Don't know if all brands are this way, but my dispenser is yellow as opposed to ??? white?
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Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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02-27-2018, 11:55 AM
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#12
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Quote:
Originally Posted by twindman
Just FYI. The tape for propane connections is different than regular pipe tape (I learned). Don't know if all brands are this way, but my dispenser is yellow as opposed to ??? white?
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Tom, I have a roll or two of the yellow gas connection tape but prefer to use a gas system approved liquid pipe dope (and what Keystone used). My luck with Teflontape is worse then lousy
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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03-03-2018, 05:38 AM
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#13
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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I thought AMAZON Prime was fast. RV Upgrades made them look like snails. I ordered the regulator and 20" replacement hose on Tuesday evening, they shipped on Wednesday and arrived Thursday. Unfortunately 8" of soggy snow yesterday after two 60* plus days changed my installation plans though
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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03-03-2018, 07:41 AM
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#14
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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We asked the question to Marshall regulators back when we got the 06 3400. The response was that it is required and needed they did suggest a higher rated regulator and we did replace the OEM one. We have not had a problem of any kind.
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03-03-2018, 08:50 AM
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#15
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Quote:
Originally Posted by richfaa
We asked the question to Marshall regulators back when we got the 06 3400. The response was that it is required and needed they did suggest a higher rated regulator and we did replace the OEM one. We have not had a problem of any kind.
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.....and exactly why I chose the one I ordered vs the OEM low end clunk
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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03-03-2018, 09:37 AM
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#16
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Montana Fan
Join Date: Feb 2014
Location: Chico
Posts: 269
M.O.C. #14041
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When traveling in Oregon I went to an R.V. parts store and picked one up from the shelf. My problem was the Change Over Regulator so I now have a spare. Id give it to you but the drive may be a bit much, I am in N. Calif.
Good Luck.
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04-01-2018, 05:45 AM
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#17
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Got a wee break in the weather yesterday and installed both new propane regulators. Also had a lesson learned. I found that there are at least a couple different types of hose connections at the regulators. One is the usual NPT. the other is an inverted flare - which of course is the one I bought (the other side was new last fall). I rooted around in my fittings box of odd parts and found the right adapter so all is well. Did my soapy water leak test, fired up the furnace for a check and am now ready for the camping season as far as LPG service.
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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04-15-2018, 08:47 AM
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#18
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Montana Master
Join Date: Sep 2017
Location: Willis
Posts: 896
M.O.C. #20587
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Quote:
Originally Posted by carl n susan
According to previous history and experience here, the regulator is
part # C6121#2049 30psi From Marshall controls. There used to be numerous sources but the original posting of information is from 2009. I have no idea if Montana still uses this regulator or they have found a cheaper alternative.
http://www.montanaowners.com/forums/...p/t-37246.html
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Just as a note, our 2018 3791RD has a Fairview GR-630. It's red and has no pressure numbers marked on it. Their web pages says
GR-630B1/4 FPT, 500,000 BTU/Hr, 30 PSIG Set Outlet but no inlet pressure.
__________________
2018 Montana 3791RD (SOLD)
2017 Ram 3500 DRW 6.7 Cummins Aisin, B&W RVK3600 (SOLD)
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04-15-2018, 09:17 AM
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#19
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Quote:
Originally Posted by masterdrago
Just as a note, our 2018 3791RD has a Fairview GR-630. It's red and has no pressure numbers marked on it. Their web pages says
GR-630B1/4 FPT, 500,000 BTU/Hr, 30 PSIG Set Outlet but no inlet pressure.
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Good information for those who are looking for replacements
Both the primary and secondary regulators on our 5er were Fairview and both had a Made in China sticker. Both replacements are now Marsh-Excelsior now.
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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04-15-2018, 09:31 AM
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#20
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Montana Master
Join Date: Sep 2017
Location: Willis
Posts: 896
M.O.C. #20587
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Quote:
Originally Posted by Dave W
Good information for those who are looking for replacements
Both the primary and secondary regulators on our 5er were Fairview and both had a Made in China sticker. Both replacements are now Marsh-Excelsior now.
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Same with the pigtails - Fairview - China. I just ordered spare of both - Marshall. Not sure where they are made
__________________
2018 Montana 3791RD (SOLD)
2017 Ram 3500 DRW 6.7 Cummins Aisin, B&W RVK3600 (SOLD)
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