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Ian6's avatar
Ian6
Explorer
Dec 12, 2016

Help with external propane supply.

Hello, I am having serious problems trying to hook up an external 20lb propane tank to my RV.

It's a 1988 Super Chief and nobody, not even RV supply stores has anything that can help me, and I can't seem to find anything online that fits the new OPD cylinders, everything is for POL.

Below is what is installed. There is a high pressure hose that ends in a 3/8 Flare fitting.

All I need is a OPD to ANYTHING adapter and I could get the parts at a hardware store to adapt.

But I can't for the life of me find anything that connects to the 20lb tank that isn't regulated. I've bee spending days calling and driving around but nothing. Is it really this hard?

Help?





http://i.imgur.com/AV2rhmF.jpg

http://i.imgur.com/lN0KlW2.jpg

Edit: Can't seem to post pictures or links so adding them here.
Class A

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  • Chris_Bryant's avatar
    Chris_Bryant
    Explorer II
    Dec 12, 2016
    You just need a standard LP pigtail- the small end needs to be 1/4" inverted flair. This attaches to the plugged port facing the camera. All cylinders will take a POL fitting, but you shouldn't have any trouble finding the ACME QCC. Most kits include the POL because they often rent 100 lb cylinders, which are POL.
  • Ivylog's avatar
    Ivylog
    Explorer III
    Dec 12, 2016
    This is a 12 inch rubber pigtail with 1/4inch inverted flare x QCC... $12 on Ebay. I think all 20 lb have left hand threads on the inside.
  • haddy1's avatar
    haddy1
    Explorer II
    Dec 12, 2016
    I'm not understanding your problem. To the best of my knowledge, OPD refers to the valve, not the connection. All of the newer portable tanks with OPD valves will have an ACME thread. Many of those valves also have a POL thread on the inside.

    If you are concerned that the available hoses have a flow restriction device, that shouldn't cause a problem because they don't reduce pressure but simply restrict flow if the hose were to break. BTW they are usually removable, but I won't advise you to do so.

    You can find many hoses with ACME connections on one end and either a reverse flair or NPT fitting on the other end.
  • Ian6's avatar
    Ian6
    Explorer
    Dec 12, 2016
    Effy wrote:
    extend a stay?


    It already has something like that, I posted some pictures of it. There is a Y coming out of the tank to the right, one goes into the two-stage regulator and the other line runs into a propane stove with it's own regulator.

    I can remove that second high pressure line, complete with shut off valve but that's a 3/8 Flare which won't connect to the propane tank.

    And every extend a stay that I have found online says it's for a POL connection and all the new tanks are OPD.

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