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300 psi spinkler valve
Posted: Mon Jul 16, 2007 8:39 am
by lukemc
I found this on ebay for 35$ all metal rated at 300psi. i dont have a use for one right now so i thought id show you guys.
Very long link
Posted: Mon Jul 16, 2007 8:59 am
by chaos
8lbs
man that would be heavy, but that thing could take probably 350-400psi.
nice find
Posted: Mon Jul 16, 2007 12:32 pm
by frankrede
It opens extremely slow though, read the description.
Posted: Mon Jul 16, 2007 3:39 pm
by lukemc
its says it has a slow closing time. i dont see anything about opening time
Posted: Mon Jul 16, 2007 3:47 pm
by robert23
So somebody needs to buy this and let us all know how well it works/how fast it opens.
Not it
Posted: Mon Jul 16, 2007 4:47 pm
by chaos
mine weighs mores
any1 want to buy it?
Posted: Mon Jul 16, 2007 4:50 pm
by wannabie
Hmmmmm a butterfly valve ( i think ) how would you atach (sp?) that to your gun i see no threads?
Posted: Mon Jul 16, 2007 5:25 pm
by Flying_Salt
wannabie wrote:Hmmmmm a butterfly valve ( i think ) how would you atach (sp?) that to your gun i see no threads?
Brute force.
Posted: Mon Jul 16, 2007 5:39 pm
by rna_duelers
That would be extrememly hard to open at those pressures!how mnay Square Inches do you think is on that buuterfly valves sealing plate?Then times that by 300psi and your getting close to the amount of force you are going ot need to get it to move.
Posted: Mon Jul 16, 2007 7:26 pm
by robert23
rna_duelers wrote:That would be extrememly hard to open at those pressures!how mnay Square Inches do you think is on that buuterfly valves sealing plate?Then times that by 300psi and your getting close to the amount of force you are going ot need to get it to move.
It looks to me like it pivots in the the middle of that sealing plate. So wouldn't that mean that when you open it, there will be as much force from the air pushing the valve open as there is trying to keep it closed? I might be mistaken as to how these work, but it looks pretty balanced to me.
Posted: Mon Jul 16, 2007 11:24 pm
by clide
chaos wrote:8lbs
man that would be heavy
I got two 40 pound valves. I'll make a nice portable gun with them.
Posted: Mon Jul 16, 2007 11:42 pm
by MrCrowley
Chaos you should sell that, they go for like $200, I forgot how they do connect to pipe...Do the ends of the pipe need to be flared or something and you bolt around it like a compression fitting?
Posted: Mon Jul 16, 2007 11:52 pm
by pyrogeek
That valve may be heavy, but then you can use higher pressure air, and would be using metal pipe anyway. It may not be the most fun to carry, but it would probably help make it more accurate and you wouldn't have to worry about it breaking from a heavy chamber or barrel since it's metal itself.
As for those butterfly valves, would those have to be welded? Are they aluminum? :violent2:
Posted: Tue Jul 17, 2007 1:05 am
by chaos
Try a price of $300AUD+ i didn't buy it it was a leftover from a job at work.
its solid stainless and for the purpose it would be used for would be welded to a steam line. but they have like a locking compression fitting type thing that clamps over the base of the valve.
there quite easy to open and mythbusters used a 12" butterfly valve on there chicken gun with no hassles to open it