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

[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

[jsefcik]

Put the bottle in a vise, and get a pipe wrench and just keep pushing,

[Goats spudz]

[jsefcik]

Heat it up

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

[Goats spudz]

i have opened it,,, jumped on it

[jsefcik]

How did you get it open?
did you heat it?

[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.

[Gun Freak]

What size fittings are you gonna use to attach it?

[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.

[MrCrowley]

also it had 2600 psi of co2 in it

How hot was the bottle?

CO2 is only ~800PSI at room temperature.

[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

[Mr.Tallahassee]

The CO2 would have to be upwards of 200 degrees Fahrenheit to be under that much pressure at rated fill.

[Goats spudz]

yah, the bottle was about 200 degree f