Co2

My question concerns co2. I'm toying with the idea of making a co2 generator, using fermentation. My question is about pressure. Say you take a 2 gallon vessel, with a pressure gauge, fill it with the right ratio of sugar, water, and yeast, completely seal the vessel , how much pressure will the SWY mix generate?

I need to know about pressure,So i DONT blow anything up. I have 34 years experience working in the plumbing and piping indursty. Ive worked on all sorts of piping systems, alot of them were high pressure systems dealing with various gases. I know how to weld, ive used argon, for welding and purging, also dewars full of liquid nitrogen.This is a DIY fourm, the system I wish to build is just like a standard tank system, with a regulator and a solenoid. I have a empty "b" tank and a flow meter I can use. Instead of having to keep going to the welding supply to get my tank refilled, Id like to set it up so i can make my own co2, in my tank. I would be a fool to build such a system without knowing what type of pressures I'd be working with. I did find some info at a wine making web site. In the making of champange they add a little yeast, sugar, and juice to the wine before they bottle it . This causes secondary fermentation in the bottle, which gives champange its bubbles. According to the article this secondary fermentation builds about 90 to 100 lbs of pressure. Thats why the cork pops! The article also states that a WEAKER ratio of YSJ will result in less pressure 60 to 90 lbs, this is called sparkling wine. All that being said. I just want to make sure I don't build some kind of bomb that blows up my house. Obviously I can get 100lbs, but how much higher will it go? I think somebody who does a lot of home brewing might have my answer. Thanks for all your help and input .