CORNFED "5-0"
Rancho Cucamonga Ca. U.S.A.
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Joined: 07/18/2004
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Do I need a pressure regulator on both of my propane tanks. The main issue is that I can not get the left tank to send propane to the right side. On the right side is where the regulator, with the transfer valve, is located. Also the propane lines have some type of reed/flapper valve in the fittings. If I put a small amount of pressure to it, it will let it pass. If I put more then 3psi the little reed/flapper valve shuts and nothing will pass thru it. I looked at the fittings from my old 5er and I can look thru them, they do not have anything in them and I had only one pressor regalater. I was thinking about loosing the regulator on the left side, and change out the fittings and hooking it up direct to the regulator on the right side. WACHA THINK!!???
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08 CARDINAL 33TBH/LE 5er,GEN=EU2000 X2 W/PARA CBL & ALL THE GOOD STUFF.
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HE WHO CHASES MONSTERS! SHOULD SEE TO IT, THAT HE DOES NOT BECOME A MONSTER HIMSELF!
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tom_kat
way upstate new york/lake george area
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Joined: 02/28/2005
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regulators only allow you to use one tank at a time and can have a automatic or manual switch over.not sure if i understand your question or not what your trying to do?
1985 Class A Holiday Rambler Imperial 33 +1979 Class C Holiday Rambler Statesman 1000 = 24 ft
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Jrebhun
Western Pa
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Joined: 03/29/2004
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I had the same problem and thoughts and tried the slow valve opening technique and it works. Visit this thread for info.
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/21659637.cfm
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tom_kat
way upstate new york/lake george area
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there is excess flow valves that will shut down as a safety feature in case of a line breaking ,opening the gas valve slowly will allow gas to pass thru ,if opened really quick the valve may close.
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javaseuf
Southern Cal
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Joined: 03/30/2005
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tom_kat wrote:there is excess flow valves that will shut down as a safety feature in case of a line breaking ,opening the gas valve slowly will allow gas to pass thru ,if opened really quick the valve may close.
Correct. This is what those "flappers" are you see in the rubber pigtail lines. All new pigtails have them and some even have a thermal device that shuts down gas flow should temps reach 200 degrees.
Steve
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"Politically Incorrect And Proud Of It" 
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jetcare
Bowling Green, KY
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Joined: 05/02/2008
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If you have a 5th wheel with two propane cylinders located in different locations, you should review this LINK.
The long distance the propane has to travel down an empty line from the cylinder farthest away from the regulator is your problem. You may want to add a 30 PSI regulator at the cylinder that does not have the 2-stage regulator close by.
Matt Harris
A1 RV Repair Services
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CORNFED "5-0"
Rancho Cucamonga Ca. U.S.A.
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I want to thank you all for the info. I bought lines, without the excess flow valve, and put them in. The 8psi regulator that was on the farthest tank was replaced with a adjustable regulator set at 30psi. I left the factory regulator, the one that lets me switch from left to right tank, in place. In place of the excess flow valves I put a after market'inline' safty valve on both tanks. Thanks again. Going to Sequoia on the 30th thru the 5th so I will see you all on the road.
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