Trev's Regs

[mightymouse]

Looks like I have another project......

Trev

[maddox10]

Danny B, that solenoid valve can be used for lifters, as it has a low flowrate due the 1/8" connections.
In combination with Quick Exhaust valves it becomes another story. Woody has shown us the way to do that.

Trevor, I did adapt a reg of you in the past. Fitting it directly on a paintball valve just needs another nut. But then the bottle can't be horizontal as that will flood the reg with liquid CO2.
Your reg will survive,but the pressure spikes in the setup ain't funny. Lets hope on a good low pressure PRV then.

[Danny B]

So as long as I add a QEV to the system, I should be fine?
Also, I was still worried about what you mentioned in your above comment, since I planned to have the bottles horizontal. Would the bottle's pin-valve help stop liquid reaching the reg, or is there another common way that I've missed?

[maddox10]

A pin valve ain't good, you'll want an on-off valve on the paintball bottle. With a pin valve you'll need a seperate "isolation" valve meaning the connection on the Trevor won't be the one you're asking for.

This is an on/off valve.
http://www.ebay.com/itm/New-paintbal...-/390813702212

And no, the valve won't stop any liquid CO2 from entering the system.
The solutions used:
Positioning the bottle under an angle so the valve is above liquid level. (simplest)
An up tube , meaning there is a tube in the bottle that sticks "up" so the hole is above liquid level.
Long coiled tube or hose between bottle and reg as heat exchanger/evaporator
Buffertank

[mightymouse]

Danny,

Will plan to have the reg at 90° to the bottle so by angling the reg up it will stop liquid at it's normal position.

I prevent fluid problems by running the reg outlet through a 6mm OD (4mm ID pipe) to a buffer tank. If fluid passes through the reg the reduced pipework allows the pressure to build and shut off the reg before it can damage anything. The longer the pipe the better...

Trevor

[Danny B]

Trev,

I reckon I'll try your system too, since I'll almost certainly be going upside down at some point. When the bottle is at full capacity, is it literally full of liquid right to the top?

[Danny B]

Also, I take it this would be a suitable hose for the reg outlet? http://www.ebay.co.uk/itm/New-Paintb...item3f202169c4
I can stick an adapter on it easily enough if the connection is different.

[maddox10]

Trev,

I reckon I'll try your system too, since I'll almost certainly be going upside down at some point. When the bottle is at full capacity, is it literally full of liquid right to the top?

No, a CO2 bottle gets filled on weight, not pressure like most gasbottles. A full CO2 bottle at roomtemp is about 2/3ths full of liquid.

Overfill a bottle, and it heats up after filling (filling a CO2 bottle is best done with a very cold recieving bottle, and a roomtemp donorbottle) , the pressure will rise very fast, untill the burst disk blows.

[maddox10]

Also, I take it this would be a suitable hose for the reg outlet? http://www.ebay.co.uk/itm/New-Paintb...item3f202169c4
I can stick an adapter on it easily enough if the connection is different.

You realise that is 1 meter of braided hose you cannot shorten. But in theory that hose is strong enough to deal with the pressure.

[Danny B]

Yeah, I'm probably best going with the shorter hose instead.
Just trying to clear things up in my head, is the reg compatible with the on/off valve that you said I'd need on the bottle itself?