Valves

[ClaytonM223]

Hi, I am Clayton from the Van Wert robotics team and I need help finding a valve that I can use on our FRC robot that we will use to shoot t-shirts at ball games. We intend to have a bank of 7 or so barrels that will shoot individually. I need to find valves that can allow the CO₂ into the barrel from the tank. They need to be as cheap as possible. Thanks for the help!

[farcticox1]

Any pictures yet or is it still being designed.

[jackssmirkingrevenge]

Welcome to the forum!

Are you regulating the CO2 or using it at full pressure?

If you want something off-the-shelf that is reasonably priced, a Quick Exhaust Valve is your best bet.

some eBay links:

https://www.ebay.com/itm/New-SMC-NAQ500 ... SwLq1f1SNp

https://www.ebay.com/itm/1pcs-Quick-Exh ... Sw-INa0ByX

You will need to bring the CO2 pressure to about 300-400 psi for safety reasons and the pressure should compensate for the low valve seat diameter compared to the t-shirt bore.

The challenge would be the exhaust valve to actuate the QEV. Solenoid Valves are expensive for higher pressures, you could consider using a slide check valve hooked up to a servo, this would do double duty of firing the QEV as well as cutting off CO2 flow from the main tank.

[ClaytonM223]

We are still designing the robot and we plan to regulate the CO₂ before it goes into a accumulator tank