wow, uhh.. Well maybe I don't need one?? I am using a homemade meter pipe with a PSI gauge in it and two ball valves, where you just open one ball valve to let the Propane in, then close , and open the other end. The pressure I need to meter to get to is like 30 or 40 psig. So maybe I don't need a r...

Hey, So I am working on a Advanced Combustion, that if I ever get time will get finished, I have most of the pieces I need. Except, a regulator for the propane tank. I have read a bit and see that its a good idea to have one, except I went and talked to a guy at Menards, he wasn't to helpful, I don'...

Isn't this where someone says "Eye Protection"?

alright thanks,

I like science experiments, so I will definitely do the "smash" test. haha

-BFC

I was thinking more of my propane combustion cannons

Sorry to cut in, but if i store my cannons in the house and they are room temp. would it be safe to fire them like 3 or 4 times and then bring them back in side to warm up again??

-BFC

yea, im getting them from a guy who owns his own Irrigation Install Company.

its good to hear that they are tough.

thanks, i appreciate the response.

-BFC

Hey,

Im looking at sprinkler valves and I can get this valve : http://www.sprinklersupplystore.com/product-p/216b.htm

the Irritrol 216b 1 1/2in

can it be modified to open with a blowgun or pilot valve? or is it a no go?

thanks
BFC

You should prolly be using PVC cement on the PVC parts and the the ABS/PVC cement should be used when you are solvent welding ABS to PVC but I really really dont think that you should use PVC/ABS cement on a pneumatic cannon. On my Adv. Combustion I used PVC and ABS and where those joints came toget...

all cleared up,

thank you for the reply
BFC

In the data input area it asks for your meters "residual volume". What exactly is the Residual Volume. Its confusing me, Im probably making it more complicated than it needs to be.

thanks,
BFC

alright, that sounds like the bolts idea should work,

*EDIT*
@BioPyro
Hey,

You wrote about a glue that you used on your PVC/ABS cannon. I was wondering what exactly it was.

thanks for the info,
BFC

Would putting bolts to hold the joints together weaken the fittings and the pipe?

I wanted to use 4" PVC for the chamber because of the fact that the PVC is pressure rated and then I wanted to use the ABS parts funnel the blast out of the chamber and into the barrel. Maybe my idea was way off, but I had read on here on some different threads that ABS in Propane cannons can fail, ...

I have special ABS to PVC cement i bought yea, I think im going to do a few tests before I make my big one. I have a big thick blanket Im going to throw over it while I test and Ive got a blast shield I have from long time ago. Im going to use both while I test. I really dont want to be having to pi...