SpudFiles

Hi to all and thanks for such an informitave site. I have been a lurker for the last few days now and I finally got my cannon finished up. I wanted to show a picture of it. It is just a basic t-shirt cannon. 3" x 20" barrell and chamber with a 3/4" orbit sprinkler valve. I'm not real sure if it is 100% correct, but it does fire approx 35-45 yards @55psi. at any rate I'm real happy with it and I wanted to say thanks for a great site.

BTW: I have now installed a 115psi relief valve where the pipe plug is shown.

Any comments are appreciated

Thanks

Dusty

the valve is a little small for the bore, but its allright for a first build and nice to see saftey is a concern as you installed a pop-off.

whay pressure do you plan on using it up to,i guess 100psi?

yes around 100 psi.

Its quite a decent build for a first one.
That valve is REALLY limiting flow and thus power, so for more power, use a larger diameter valve next time. (At least the same diameter valve as barrel for the best performance)

(At least the same diameter valve as barrel for the best performance)

How do I go about a 3" valve? Just curious

itlbtu2 wrote:

(At least the same diameter valve as barrel for the best performance)

How do I go about a 3" valve? Just curious

3" Sprinkler valve? Check eBay every now and then and any local irrigation stores. You can get them online but they'll cost a lot. Some people even find them at dumps and recycle centres for only a few dollars.

You could build one yourself