SpudFiles

this is the svbc (sprinkler valve bolt cannon) its a 1 inch orbit valve modded the barrel is 1 inch sch 40 and the chamber is 1.5 inch sdr 21 leftover from my last gun the chamber is connected to the valve with a reducer tee its very powerful damage pics comin soon! plz comment.EDIT:just put the sch 40 on it damage pics will have to wait until tommorow though because my camera needs new batteries.

why did you put you blower valve on you sprinkler upside down? other then that nice gun

Is it Bolt action?

YOu did say bolt cannon or does it shoot "bolts".

Nice gun.
I find it interesting that your solenoid valve can block off the pressure.The sprinkler valve i bought's solenoid valve can't hold squat (in air pressure).

Anyway, like to see damage pics!
happy SPuddin'
8)

Nice gun. Where did you find the 1" Sprinkler valve?

redcoat.it shoots bolts but i will soon make it bolt action.Phonut.i got the valve at home depot.

It's an extrmeley bad idea to use SDR pipe as a pressure chamber; have fun diggin' out shrapnel.

noname wrote:It's an extrmeley bad idea to use SDR pipe as a pressure chamber; have fun diggin' out shrapnel.

yeah i know but its all i had and i dont take it over 85 psi (i usually do about 75) so i think it should be fine if im not rough with it.Its rated to 160 psi and im not going to take it to 100.

trae08 wrote:why did you put you blower valve on you sprinkler upside down?

?

trae08 wrote:

trae08 wrote:why did you put you blower valve on you sprinkler upside down?

?

Sorry you mean the blow gun right? if you do its because i didnt have the right fittings to do it the other way.

The pressure rating of the pipe won't matter. It's rated to 160 psi; big deal. IF, that's IF, I ever made a launcher from SDR pipe it would be a very low power combustion. IF it was a pneumatic, I would scrap it immediately. IF it was a case of life or death, then I wouldn't use it oover 20 psi.
Usually dropping a pressurized cannon can cause an elbow to crack or something. If you drop that hunk o' junk, the whole chamber is going to frag out on you. Then you get your very own article in the newspaper, just like the recent Ryan Meerdink.

noname wrote:The pressure rating of the pipe won't matter. It's rated to 160 psi; big deal. IF, that's IF, I ever made a launcher from SDR pipe it would be a very low power combustion. IF it was a pneumatic, I would scrap it immediately. IF it was a case of life or death, then I wouldn't use it oover 20 psi.
Usually dropping a pressurized cannon can cause an elbow to crack or something. If you drop that hunk o' junk, the whole chamber is going to frag out on you. Then you get your very own article in the newspaper, just like the recent Ryan Meerdink.

Okay ill put a new chamber on it tommorow the reducer tee is threaded so ill unscrew it and put a new chamber on it.

Luckily for you, the light-weight thinwall shrapnel won't do as much damage as normal sch40

It should be fine.. I would wear hearing/eye protection and a decent pair of gloves though.

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SpudBlaster15 wrote:1.5" SDR 21 pipe is rated to 200psi right? If that is the case, I have no idea what noname is going on about. As long as you don't drop the cannon or take it over it's pressure rating, the chamber should be fine.

I still would leave a safety margin on it though, I wouldn't take 260psi rated pipe up to 200psi. Like i've said many times i've had pipe rated to 260psi fail at 110psi, though I think it was due to rapid decompression and compression of the chamber.

I reccomend doing what your doing by just keeping it at 75 psi.
My first pneumatic was made using unrated pvc and i took it up to 90 psi.
The endcaps bent outwards but i had no leaks or shrapnel parties.
Just be careful.