4 Inch Piston Valve Cannon with Video and many Pictures

[glass_05]

Sorry for not understanding what that is, I am still new to all the piston gun terms.
By valve seat do you mean the size of the pipe that the piston sealing face seals? If so I am using a 3 inch pipe. The OD is almost 3 1/2", just barely under, and the ID is 2 7/8"

[Technician1002]

Sorry for not understanding what that is, I am still new to all the piston gun terms.
By valve seat do you mean the size of the pipe that the piston sealing face seals? If so I am using a 3 inch pipe. The OD is almost 3 1/2", just barely under, and the ID is 2 7/8"

Thanks. That is what I was asking. It is used to figure the opening size the air has to go through.

[glass_05]

The other day when playing with GGDT a little bit I came across that, and I figured that is what it was asking for.