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cant find sprinkler valves?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Unread postAuthor: Mr.Russ » Wed Mar 21, 2007 2:12 am

chaos wrote:
Mr.Russ wrote:a 15mm one? i think thats 1/4"? if it is, good luck.

soz wtf Mr.Russ lol where did you do that conversion?

lol anyways im liking how the plans for your gun are coming along to_live, good luck with it all


i dont know but i thought 3/4" was 20mm
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Unread postAuthor: jackssmirkingrevenge » Wed Mar 21, 2007 4:50 am

Mr.Russ wrote:i dont know but i thought 3/4" was 20mm

close, 0.75" is 19.05mm, so 15mm would be 0.59"
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Unread postAuthor: MrCrowley » Wed Mar 21, 2007 2:04 pm

wait.....hold on. 1/4" = 6mm
1/2" = 12mm
3/4" = 19mm
1" = 24.?mm

But the fittings are actually done in......8mm,15mm,20mm,25mm.
Thats where we are getting confused. A 15mm fittings is equal to a 1/2" fitting.
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