Cannon construction

It is important to construct your launchers with care. This includes:

• Using pressure rated (NSF-PW or NSF-61) fittings and pipe, especialy in a pneumatic cannon.
• Solvent welding correctly
• Using pipe of the proper pressure rating, eg. sch 80 in a Hybrid Cannon.
• Only tap though a double layer of pipe where the pipe and a fitting is joined(for bolts, pressure gauges) .

Under no circumstances WHAT SO EVER should you use cell-core or unsleeved thinwall pipe.