Why does this guy's automatic air cannon have 2 valves?
Posted: Mon Jul 31, 2017 11:37 pm
by Chauvo
From what I understand, the bb with a spring near the trigger is what makes it automatic... So what is the purpose of the sprinkler valve?
Re: Why does this guy's automatic air cannon have 2 valves?
Posted: Tue Aug 01, 2017 6:46 pm
by jackssmirkingrevenge
The sprinkler valve is the main valve but it needs to be piloted to fire. By having a pop-off valve as the pilot, it will be piloted at certain intervals effectively giving full-auto fire.
I did this with a eBay Quick Exhaust Valve coupled with a pop-off safety valve: