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Rocky D
10-15-2007, 09:49 PM
I don't know much about propane tanks, bein' as I be a vegetarian, and don't use a bbq....however I have a 17# tank that has no gas coming out, but feels like it has about a gallon of liquid in it...what's up with that??? Do ya think I can get it filled? What would that liquid be? It has been sitting for about a year or so. :confused:

Hotfoot
10-15-2007, 09:56 PM
Take it to a refill station, and they'll tell you!:)

TozziWelding
10-15-2007, 10:02 PM
Is it an OPD tank, if so the thingamagigy(OPD device) may be stuck. Bang the bottom of the tank and it will free it up.

Rocky D
10-15-2007, 10:18 PM
Is it an OPD tank, if so the thingamagigy(OPD device) may be stuck. Bang the bottom of the tank and it will free it up.

It's the kind of tank you see associated with BBQ's looks like this just slightly smaller http://images.campingworld.com/is/image/CWI/3000/30327.jpg?wid=230&hei=230&op_sharpen=1&layer=1&src=CWI/logo.gif&sizeN=0.3,0.3&posN=.32,.3&opac=20

Sandy
10-15-2007, 10:26 PM
The OPD's have a little piston inside that is supposed to shut down any quick rushes of fuel plus I believe most have a face seat that needs detented by your BBQ regulator fitting or CGA XYZ (530?) fitting.

The OPD valves are characterized by the triangular knob on top.

Rocky D
10-15-2007, 10:29 PM
Gotcha...I can check that out...it may have gas in it after all then.

hankj
10-15-2007, 10:36 PM
Hi, ole' buddy! (that would be the Senior Elder Weldor)

What you described is really wierd. Still get a "slosh" when you shake the jug, but no gas comes out? Odor check fails?

It's seems obvious (bad phrase, sometimes?) that ther ain't no more pressure in this thing. I'd wrench out the valve 'n see wahtinhe'll ya got in there!

Could be drinkable!:p

Hank

Roger
10-16-2007, 08:39 AM
Check your propane tank's weight. Subtract tare weight. You will then know how many pounds propane is left in tank. Should also have full tank weight stamped on tank.

OPD valves have have flow fuse and float valve. Flow fuse is spring loaded open but excess flow closes flow fuse. Close valve and spring should open flow fuse. Large burners could demand high enough flow rates to close flow fuse. Roofers had this problem. Some newer OPD valves allow higher flow rates.

Float valve stops filling tank when liquid level is 90% of full tank volume to allow enough gas volume in tank for liquid expansion as temperature increases. Tank must be used in vertical position.

Propane tank filling should be monitored by weight and volume. OPD feature should only be safety backup. Small fill sites use to vent propane gas from valve until liquid came out of vent. Not good for preventing smog. OPD lessons need for venting during charging.

mooseye
10-16-2007, 09:15 AM
Hi, ole' buddy! (that would be the Senior Elder Weldor)

What you described is really wierd. Still get a "slosh" when you shake the jug, but no gas comes out? Odor check fails?

It's seems obvious (bad phrase, sometimes?) that ther ain't no more pressure in this thing. I'd wrench out the valve 'n see wahtinhe'll ya got in there!

Could be drinkable!:p

Hank

DO NOT DO THIS!
If there is still gas in the bottle you could be injured or killed not to metion burned beyond recognition.

Rocky D
10-16-2007, 09:47 AM
Check your propane tank's weight. Subtract tare weight. You will then know how many pounds propane is left in tank. Should also have full tank weight stamped on tank.

OPD valves have have flow fuse and float valve. Flow fuse is spring loaded open but excess flow closes flow fuse. Close valve and spring should open flow fuse. Large burners could demand high enough flow rates to close flow fuse. Roofers had this problem. Some newer OPD valves allow higher flow rates.

Float valve stops filling tank when liquid level is 90% of full tank volume to allow enough gas volume in tank for liquid expansion as temperature increases. Tank must be used in vertical position.

Propane tank filling should be monitored by weight and volume. OPD feature should only be safety backup. Small fill sites use to vent propane gas from valve until liquid came out of vent. Not good for preventing smog. OPD lessons need for venting during charging.
Thanks, Roger for chiming in...I don't know anybody that knows more about tank, valves, SCUBA, than you do...I appreciate your posts....also you're the only guy that can post several paragraphs, and not use the word "the"...:D

old fart
10-30-2007, 11:38 AM
There is propane in the tank! The valve has a spring loaded shut off so nothing will come out unless a regulator is connected to the valve. Take it to a filling station and they can explain how it works.

Clay Walters
10-30-2007, 02:30 PM
http://204.15.98.122/

Rocky D
10-30-2007, 03:46 PM
There is propane in the tank! The valve has a spring loaded shut off so nothing will come out unless a regulator is connected to the valve. Take it to a filling station and they can explain how it works.
Yup, there is...I was relying on my employee who said it was empty...I should have known better having operated propane forklifts and vehicles at work...when I connected it, full it was...my guy didn't have a clue....I need to remember that. Can't fire him, cuz he saves me so much work, and for that he's priceless...just don't you guys tell him. :D

Nickoli
10-30-2007, 06:20 PM
just don't you guys tell him. :D

Hey Rocky whats it worth to you???? I need to buy some tools and what a better way to get cash than through black mail:eek: