"Boston Industrial Tools" air regulators are cheap

[noob of noobs]

Hello! So I'm looking to build a propane/air meter for an upcoming hybrid cannon. It's going to require two regulators (one for air, one for propane) but the thing is is that if I were to get two regulators at lowes or Home Depot, it'd cost 40 USD plus Tax, which is pretty big for me. So I was searching Amazon, and I came across this: http://www.amazon.com/Boston-Industrial ... 97&sr=1-28

It says it goes up to 160psi, it has an adjusting knob, and is much cheaper; getting two of these would cost me probably less than 20 USD which includes shipping and tax. The only thing is is that I know you generally get what you pay for, and this is cheap.

So... do you think I should try them?

Manufacturer's site: http://www.bostonindustrial.com/1airrewiga.html

Thanks in advance!

[potatoflinger]

I would advise not to get them, from the looks of it, they are only flow regulators, not pressure regulators. The know that you see on the side is pretty much just a ball valve, that you open or close to change the flow of air. It is most likely not the kind of regulator that you are looking for.

[jrrdw]

You must have added "cheezie" to the search , 4.99 for both the gauge and regulator should have tipped you off as to the quality. Take the time to search all places, around and I bet you will find something quality for the rite price.

[Sticky_Tape]

The price is great for what it is. IT IS NOT A PRESSURE REGULATOR!!! This is called a flow adjusting valve. But you could use this to fill your fuel meter. Flow adjusting valve>ballvalve>meter pipe>ballvalve>Cannon chamber. This setup would be cheap and it would allow you to fill the meter pipe to different pressures without having to change the setting on the reggy. EDIT: I was bitten by that once I wanted to buy a pressure regulator but instead I bought the cheaper flow regulator not knowing the difference.

[noob of noobs]

Oh...I see...
Well, with a little more searching, I found this, which is more expensive, but looks right:
-Link changed, PCGUY http://tinyurl.com/8rhoh3

Better?

I don't know why, but the text didn't show up when I looked at this thread???

[jrrdw]

Is any body else not seeing the text in any of the above post?

[Sticky_Tape]

I don't see anything in noob of noobs post. I see the others

[Sticky_Tape]

The link isn't working noob hehe noob.

[jonnyboy]

I think he was trying to post this link

I think it would work fine.

EDIT His signature cut off the end of the url.

[Sticky_Tape]

yeah that would work but I would go with the flow regulator.

[jrrdw]

Only the Admin can edit profile, sigs and account info. Noob can edit his own sig and profile, same with all members that I know of.

[noob of noobs]

Thanks Jonnyboy! I do have to use a regulator like this though; the meter I hope to operate using sprinkler valves and batteries to provide the cannon with a high rate of fire. The flow adjustor would require that I monitor the meter pipe’s pressure, which will lower ROF.

[Gippeto]

Just a suggestion here, I would fill the bleed hole in the diaphragm with epoxy. (they are self venting)

You don't want to be venting flammable gas to atmosphere when you are about to be adding an ignition source, now do you.

Maybe that's just me though.

[jonnyboy]

Just a suggestion here, I would fill the bleed hole in the diaphragm with epoxy. (they are self venting)

You don't want to be venting flammable gas to atmosphere when you are about to be adding an ignition source, now do you.

Maybe that's just me though.

Or you could try piping the gas back into the system.

@noob

What happened to your posts?That happens to me sometimes but it only affects me.

[ramses]

the problem is that the gas is at atmospheric pressure, so it is impossible for it to be recycled. better to just epoxy the hole.