ok, i have seen many propane meters on this site and if i get ABS i will use one too
but for sleekness i was wondering if it is ok to use flexable pipe in the meter, all i have seen use solid pipe, but thats is kinda not an option for me
meters
I am sure that if you use pressure rated propane tank hose, (keeps ID the same) or gas line for the house (not sure if it pressure rated though) but that might work. If you can make one from black pipe and fittings to put it together you can use the hose to put it on your cannon. It may be clusey with the all metal pipe and the other good stuff, but it makes the cannon look more stafistacated looking. (this is my opinon no cut down intended) Mine is not attached to the cannon it makes mine less bulky.
The way that I use mine should work for your idea. I have a shrader valve (IE Valve stem for tires) that is on the double thick part at the back of the cannon. I used an air chuck (like the tire pumps have to fill your tires up) on my metering pipe it makes it completely Separate from the cannon the shrader valve and the air chuck both act like a ball valve. If I got you right you want to measure water with this too? I am just trying to help but not sure if I am on the same idea.
Well this might help you, http://www.advancedspuds.com/SpudToolonline.htm I have used it on my cannon. If you know what size the chamber and the barrel is, this will help you find out what size and length the meter pipe is to be and how much propane % (I use 5% but a good one is 4%) to use and the amount of propane pressure to use. A pefect C:B ratio is 1.5:1. Oh I think it tells you the ID of the meter pipe too. I hope I got it right this time 
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 1:43 pm, edited 1 time in total.
it is4% it almost exactly right. i have used hose on all my meters and it works just as well as pipe. just make sure its pressure pipe and that th hose clamps are nice and tight, mine hold about 50 psi before they leak, witch is way to much for propane and way. you can even put a pressure gauge on it.
Noname, he's not trying to measure that pressure. He's stating that .58 psi is about 4% of 14.7 psi, and that he needs that much propane in the CHAMBER. To do so, he'll use P1V1 = P2V2 to determine the pressure that he needs in his (much smaller) METER.