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Old 09-16-2008, 08:33 PM   #1
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Propane Transfer

I finally decided to attempt to transfer propane from one tank to another. I did a google search and found a few suggestions as to the procedure.
Why would anyone want to do this you may ask?
Well my finely eguipped 86 Excella has a readout inside the trailer that is connected to the sending units in the tanks- imagine that!
So I wanna keep this going.
As no one wants to fill my 2 aluminum tanks with these valves on them I've decided to do it myself.It's no big deal really.
You just need a HIGH pressure hose with a POL fitting at end. Screw the 2 tanks together with the hose. Place the full tank inverted above the empty tank.Put this tank in the full sunlight. Place the empty tank right side up in the shade. Wrap a towell around the lower tank and soak it with cold water. Open the valves and haul a$$- no lol- just open the valves and you will see the hose kinda pulsating as the transfer is happening.
This may take 20 to 60 minutes depending on the temperature differential of the 2 tanks.
So it does work!
And yes you just need to be smarter than a propane tank to do it safely.
I'll post pics soon as I do my next tank in the very near days.
I'm also gonna fill some of those 16 oz. camp stove tanks also.
DG
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Old 09-16-2008, 08:39 PM   #2
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I was always told to wear ear plugs when attempting this sort of operation just in case.
I've found that it is hard to run w/ ones fingers in ones ears.
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Old 09-16-2008, 09:23 PM   #3
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You know Tim....the innovations you come up with fascinate me to wish that I lived closer to you just to watch. However, with this propane transfer idea I don't believe the hour drive that separates us is enough.
Neil.
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Old 09-16-2008, 09:25 PM   #4
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You know Tim....the innovations you come up with fascinate me to wish that I lived closer to you just to watch. However, with this propane transfer idea I don't believe the hour drive that separates us is enough.
Neil.
Neil, sometimes I think Tim is a genius, and sometimes I think he is as nutty as a squirrel turd. I'll let you know which I think he is this time, after he performs his transfer process a few more times.
Remember the Hindenburg!...
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Old 09-16-2008, 09:37 PM   #5
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What is a POL fitting?
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Old 09-16-2008, 09:41 PM   #6
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What is a POL fitting?
It looks like this:
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Old 09-17-2008, 09:17 AM   #7
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Nice

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Neil, sometimes I think Tim is a genius, and sometimes I think he is as nutty as a squirrel turd.
Thanks for the compliment Terry.

Some people let their brains wither away as they age.

Me- well as you stated, well, my mind is as active as my digestive system.

I'll post the pics when I get my putor back from the repair place today, I'm working with my backup unit now, no card reader-etc..


Hey Larry-- is that a army huey wheelbarrowing in on your avatar?
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Old 09-17-2008, 10:00 AM   #8
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So are the sending units in the original tanks a part of the pre-OPD valves? If not, I don't see why somebody can't replace the valves with OPDs.

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Old 09-17-2008, 10:51 AM   #9
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Lynn has the right ticket, I think. I had my valves changed by my local propane supplier (not an exchange place) and the cost was very reasonable. I'd suggest you do that and be done with it.

Pat
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Old 09-17-2008, 10:59 AM   #10
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I have read that when filling small lantern size propane bottles from a large one, put the small ones first in the deepfreeze. Maybe this would also apply to refilling a large tank.
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Old 09-17-2008, 02:12 PM   #11
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Yep, it's a C model Huey. III Corp, "Bearcat", 240th AHC, 6/67-4/69
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Old 09-17-2008, 04:59 PM   #12
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doorgunner

Weight each tank before and after the transfer. I would be interested in what % of transfer you get.

It has often been hard to find a reason to live on the east coast but I think the distance will make it worth it on this one.

The new valves a cheap just get some metal number stamps and put a recent date on the rim of the tanks, to make it look like they have been recertified, before you take them in for refill.
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Old 09-17-2008, 05:02 PM   #13
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doorgunner ... just get some metal number stamps and put a recent date on the rim of the tanks, to make it look like they have been recertified, before you take them in for refill.
The standard visual recertification (good for five more years) is free at the place where we do business. The only thing they ask is that one fill the cyclinder there, too. Small price to pay!


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Old 09-17-2008, 07:00 PM   #14
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The instrustions on the adaptor to fill the camp stove cylinders indicates to put the small empty cylinder in the fridge for 15 min.Kinda goes along with water,shade on 30 lb cylinder. Any way Howie-The weight of the small cylinder empty is 14.5 OZ. After 60 seconds connected to inverted 20 lb tank this cylinder was removed and weighed. 1lb 13.75 oz. Well that's about as good as it gets.
The large trailer cylinders acheived 100% transfer. I know this because I did in fact weigh them and when I opened the valve on the donor cylinder after the transfer- not a whizz of propane.
The cylinders I want to keep have the sending unit as part of the valve. It appears that no one is making this set up with an OPD valve. There are other alu cylinders out there with the sending unit welded into the top of the tank next to that stupid OPD valve. I'm not into spending $800 for 2 tanks when I can do it myself with what I have on hand.
You know if the Hank Hills of the industry are doing this in the back room it ain't brain surgery!!Ever been to a wreching yard and seen how they MT tanks?or the nope won't go there.
I'm getting the stall on my putor repair, sumin about ram mismatch while changing out the mutha board. I will post the pics soon!!
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