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How Do you unscrew the valve of the top of co2 tanks

Unread postPosted: Thu Aug 04, 2011 12:30 pm
Author: Goats spudz
i have an old co2 tank for a beer system that my Grandad had, its about 30 years old, i emptied it through the hammer valve and drilled it through but something in the valve got stuck in the cylinder, how would i get it out because the thread is brass with a silver coloured ring around the bottom and i have tried with a wrench put i cant remove it. help :D

Unread postPosted: Thu Aug 04, 2011 12:38 pm
Author: jsefcik
Put the bottle in a vise, and get a pipe wrench and just keep pushing,

Unread postPosted: Thu Aug 04, 2011 12:58 pm
Author: Goats spudz
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Unread postPosted: Thu Aug 04, 2011 2:17 pm
Author: jsefcik
Heat it up

if my other posts pop up please excuse them, they arent showing up on my computer please excuse them

Unread postPosted: Thu Aug 04, 2011 2:24 pm
Author: Goats spudz
i have opened it,,, jumped on it :D

Unread postPosted: Thu Aug 04, 2011 2:34 pm
Author: jsefcik
How did you get it open?
did you heat it?

Unread postPosted: Thu Aug 04, 2011 3:55 pm
Author: saefroch
Pressure test that before you use it, looks like it's taken a bit of abuse. Fill it with water and pressurize to twice the pressure you plan to use it at.

Unread postPosted: Thu Aug 04, 2011 3:57 pm
Author: Gun Freak
What size fittings are you gonna use to attach it?

Unread postPosted: Thu Aug 04, 2011 5:02 pm
Author: Goats spudz
its fine the only damage was the paint and label which i have sanded off. also it had 2600 psi of co2 in it, i de-pressurized it by pressing the valve in on a rock. And Im gonna put a 1/2" hex nipple that reduces to 1/4" for the elbow into my QEV. and im only pressurizing to 300 psi, also to answer your question i opened the valve with the wrench i kicked it really hard and the valve came off.

Unread postPosted: Thu Aug 04, 2011 6:12 pm
Author: MrCrowley
Goats spudz wrote:also it had 2600 psi of co2 in it

How hot was the bottle? :shock:

CO2 is only ~800PSI at room temperature.

Unread postPosted: Thu Aug 04, 2011 6:25 pm
Author: Goats spudz
i kept it in my shed which has insulation and a window in the roof its kinda hot in there, i pressure tested it but it cooled

Unread postPosted: Thu Aug 04, 2011 6:28 pm
Author: Mr.Tallahassee
The CO2 would have to be upwards of 200 degrees Fahrenheit to be under that much pressure at rated fill.

Unread postPosted: Thu Aug 04, 2011 6:38 pm
Author: Goats spudz
yah, the bottle was about 200 degree f