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Old 02-14-2004, 03:27 PM   #1
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OPD valves for 40 pound aluminum bottle

A friend has a mid to late 70's 30 foot trailer with aluminum 40 pound propane tanks. Does any one know a supplier for the new OPD valves for these aluminum tanks. They are longer than the OPD valves for the steel tanks.
Any help would be appreciated.


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Old 02-14-2004, 05:20 PM   #2
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Fred, just take the tanks to your local dealer. If they don't have the valves on hand, they can order them without rocket science.


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Old 02-14-2004, 05:39 PM   #3
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The appropriate dip tube lengths are listed here.
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Old 02-14-2004, 05:49 PM   #4
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40 Pound Aluminum LP cans


If you're referring to the horizonal LP cans, these have been exempted from OPD retrofits. Contact Airstream, they will send stickers for the cans. If they are vertical cans, Airstream has the correct/compatable OPD valves and is selling them at a reduced cost.

This past weekend, I took the A/S to a large, rural LP gas center. The gas was $1.50, the empty tank held 38 gallons. I was told to tell the cashier, my horizonal can was a forklift bottle. Their standard charge for forklift bottles was $14.00. I asked if they were sure about this and they said Yes! WOW, I'll go back!
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Old 02-28-2009, 02:43 AM   #5
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OK I know this is an old thread and all But...

What's with this horizontal vs vertical stuff? Forklift bottle discount ????
And what is the current 2009 price for propane per gal /.

And has/is Airstream Inc actually (still) selling anything at "reduced" cost?
____ d'drummer ____

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Old 02-28-2009, 05:28 AM   #6
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Horizontal tanks were used on some year "limited" 34 models. They are mounted with the diameter axis mounted horizontally under a shroud. They look similar and mount like the ones used on fork lift trucks. They are different in the way they take as they take off the top in gaseous state rather than a liquid state like the forklifts do. You can check the Airstream store at, to see if they still sell them. Most trailers mount the bottles standing up. Aluminum bottles require a speial OPD valve different tha the steel bottles.

Lately, Airstream has been selling their outdated or overstock parts on Ebay rather than bringing them to WBCCI functions and offering them as big discounts. WBCCI functions recently have had reduced participation and Airstream has moved away from using them. It is a business thing to maximize profits by increasing the number of people they are marketing to.
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Old 03-02-2009, 05:42 AM   #7
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yes they are differant

Originally Posted by phred View Post
Does any one know a supplier for the new OPD valves for these aluminum tanks. They are longer than the OPD valves for the steel tanks.
Any help would be appreciated.

Yes they are differant from the steel ones. It has to do with the shape of the bottles.

Click here to see the 40 lbs valves.

The tanks will need to be pressure tested and any company that can do that, will have the tools to change the valves. They most likely won't have the valves for the aluminum tanks in stock.

Dan Brown
Denton NC
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Old 05-30-2009, 11:56 AM   #8
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new OPD valves for 40lb tanks

I highly recommend Wiley and Sons (a propane company) in Milton, DE. Other than some surprise at finding what I thought were 30lb aluminum tanks to actually be 40 lb aluminum tanks, it was pretty quick and easy for them to test the tanks and make the switch. And they were remarkably courteous and professional about it considering I showed up at 4:00pm on a Friday afternoon. The hardest part was finding them...I literally called every number in the phonebook looking. Seeing as Wiley starts with "W" you get an idea how irritating and long that process was. Whole deal--new valves, test, and fill with propane was 69.00 each 40lb tank.

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