SpudFiles

do you need a pressure gauge on your pneumic cannon if there is one on the pump.

srry i am new to this if it is a dumb question just trying to eb safe

You should have a guage on the cannon as well so you know how much pressure is in the cannon itself. The one on the pump will not tell you how much pressure is in your chamber probably. That's the only number you really need to be concerned with because you definitely don't want to go over the pressure rating of your pipe.

ok. thanks.
now i have to get a pressure gauge and stuff

I have never used a pressure guage, though I have built over 30 pneumatic launchers. My bike pump has a guage on it that tells the pressure, and my new air compressor has a regulator that I set to 90 psi.

Well the compressor that my neighbor has that I use occasionally only has a guage that tells how much pressure is in that tank, not how much is in what you're filling. That's what i was going by. If you've got one that tells you the pressure of the tank you're filling more power to you. Wish I had one but I be a po college boy.

The gauge on a bike pump is obviously there to tell you how many psi you are putting in the chamber/tire. Why else would it be there?

I can't be bothered with a pressure gauge.

I have a gauge on the track pump I charge my cannon with, I'm very certain my cannon is leak free and I never leave it charged.

I don't have one, but I have a leak that acts up at exactly 30 psi, so estimating from there...
I have a gauge on my bike pump, hoping to get an air compressor sometime, because 5 feet of 3 inch chambers puts up a lot of resistance.

Well I would purchase a pressure gauge for both referencing, and safety. What Ive noticed with combustions obviously unrelated in there means of firing, but I living in a rural area have to shoot over 'stuff'. For instance a house 80yds away that is followed by a long field that probably spans some ~1000yds. So with aerosol combustions Ive had some fueling flukes, and well it shoots about 80yds. No serious damage, but there is a chance of. So the same goes for a pneumatic. Often times the reservoir pressure will drop from a prior filling, and well it will take longer to reach the desired pressure. So a pressure gauge will benefit with consistency, which is obvious good for many of reasons.

There *should* be one on the output of your compressor, provided you have something besides a bike pump. Compressors generally have a pressure gauge for both the reservoir pressure, and the output 'line' pressure. If you have set your regulator properly, and the device is not faulty, the output pressure should remain constant. It will 'dip' below the constant air pressure if your reservoir is 'drained' and as a result a lower pressure then the output. Assuming you don't have huge anus compressor, this will happen on items with large air consumption. EX: Pneumatic grinders, pneumatic drills, pneumatic cannons. So periodically you will have to allow the air compressor to 'catch up', in the case of a pneumatic, every charging of the chamber.

So I might suggest that you mount one on your gun so that you don't have to gawk over at the air pressure every time to check the present pressure. Not to mention there only a few bucks, they look cool, and provided you have more sympathy for your health, and safety to use something better then what you ripped off your gutter output, you should get one.

thanks im getting one.

If I regulate my compressor(24L)to 90psi it will fill my gun(dual fire extinguisher paintball rifle) up to about 75psi.Which I didnt realise until I got a guage.So shots I thought i was doing at 100psi were only about 85psi.

Here’s my two cents ($0.02)

The pros of having a built-in pressure gauge:
One, you can find out if your gun is leaking and if it is leaking how fast.
Two, allows you to “accurately” tell how much pressure is in your chamber, I use “accurately” lightly as gauges are very sensitive things, the sudden drop in pressure may damage them, and if you have a cheap one it might not be giving an accurate reading in the first place.
Three, if you don’t have a gauge on you pump, or if you don’t have your pump, you can tell how many PSI you have. (Question: is it how much or how many PSI you have?)

The cons:
One, gauges are expensive, wow a whole five bucks!
Two, gauges can get in your why, they stick out and can snag on brush and briers.
Three, as previously mentioned, there fragile.
Four, it’s one more hole in you pressure reservoir.

I personally use a pressure gauge as much as possible, but that’s just my two cents.

judgment_arms wrote:Here’s my two cents ($0.02)

(Question: is it how much or how many PSI you have?)

I'm gonna say how many psi. It's pounds per square inch and if you say the whole thing it doesn't sound right the other way. So how much pounds per square inch, or how many pounds per square inch. I'll go with the latter.

You really do like grammar, don’t you?

What makes you say that? Besides, you asked the question, I gave an answer.