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4 Inch Piston Valve Cannon with Video and many Pictures

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: glass_05 » Sat Jul 25, 2009 12:03 pm

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"
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Unread postAuthor: Technician1002 » Sat Jul 25, 2009 12:09 pm

glass_05 wrote: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.
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Unread postAuthor: glass_05 » Sat Jul 25, 2009 12:12 pm

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