Co2 & N2 tanks

The Homebrew Forum

Help Support The Homebrew Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

user 6402

Long Time Brewer
Joined
Apr 30, 2013
Messages
28
Reaction score
3
Hi all,
A few years ago I inquired about co2 suppliers in the Essex area but didn’t do anything about it. Decided to just stick with small co2 bottles but now that Hambleton Bard have stopped supplying S30 bottles and refills, I thought I had to get another supply of gas bottles, if I was to continue brewing. Made a few inquiries locally and in London, but most of the suppliers don't deal with Joe Public, or if they do they want either a large deposit or a rolling rental deal. Looking back at the replies to my previous post, a couple of you recommended Andover Patio Centre. Gave them a call and they still supply to us brewers, and at a very reasonable cost. It was even economical for me to drive the 200+ miles round trip from Brentwood, and pick up 2 bottles, 1 co2 and 1 70/30 n2/co2 mix (they didn’t have any 60/40 mix in stock) yesterday. At the price I paid, £24.54 inc vat for each, I was expecting 2 litre size but they are about double that. NO DEPOSIT AND NO RENTAL. I dropped into the HBS in Farnborough on the way and exchanged my 2 S30 bottles for refills while stocks last. Now the questions-
1 Does anyone know the size of the threads on the valves? The N2 valve has a female fitting and the co2 a male fitting. The guy at Andover thought they were 1/2” but they are not 1/2” BSP.
2 Need to fit a regulator and was hoping to get away with just one for both bottles. Appreciate I would need an adapter on 1 of the bottles. Reading on the net, am I right in saying that you can run co2 through a Nitrogen reg. but you cannot run Nitrogen through a co2 reg. due to the higher pressure of Nitrogen?
3 When I Googled co2/n reg adapters, there are a few out there, some adapt from co2 bottle to Nitrogen regulator , and some from Nitrogen bottle to co2 reg. If I am correct in my latter point in Q2, then you shouldn’t adapt from Nitrogen bottle to co2 regulator. I assume these adapters only adapt the fittings and nothing to do with pressure or am I wrong?
4 What size and type of tubing do I require from the reg to a manifold or direct to a Corny Keg?
5 Do you recommend John Guest fittings on all ends? If so, again what size?
OK I think that will do for now and look forward to any replies or feedback.
Cheers,
STUART
 
Sorry can't help with the questions but thanks for sharing the info re Andover Patio Centre - I'm fairly nearby and been looking for a local supplier, I'll give them a call! :)
 
The CO2 will be a liquid, and the pressure remains about 860PSI until empty. The mixed gas is a compressed gas at about 2000-3000PSI, as it is used the pressure will gradually drop to 0PSI.

The regulators will often take the higher PSI but the threads are different (male/female) to help avoid dangerous mistakes when the fittings aren't up to scratch at the higher PSI.

After the regulator the gas systems can be the same. Most fittings for this situation are rated about 10BAR. I use polyurethane "pneumatic" tubing (and fittings), most folk use 3/8" (sometimes 3/16") MDPE tubing (and JG fittings).
 

Latest posts

Back
Top