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Where to buy a 1inch butterfly valve

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Discuss Where to buy a 1inch butterfly valve in the Plumbing Jobs | The Job-board area at Plumbers Forums

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ben brinnand

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Hi All.
I'm trying to source a 1" butterfly valve? I can only find ball valves.
(if your interested why)o_O
Its to make a throw line launcher, I'm a tree surgeon and we use a small line and a throw bag to pull up our main climbing rope into a tree.
For bigger trees it takes time to hit the right branch, this thing can launch the sack 30m accurately :D:D:D

sack launch.jpg
 
ben brinnand said:
Thats a Ball Valve:oops: It needs to be a Butterfly Valve!!
Click to expand...

One in the pic is a lever valve

There both exactly the same just a different Handle

100% the one in the vid is a ball valve
 
Hmm. Okay. Get that. So what that means is that speed of operation is vital and this is why the guy on the video uses a smaller valve with lower operating torque hence increased speed and air distribution.

I see the issue. To me, the easiest way around this problem is a 12v solenoid valve. An electrically operated valve that opens in approx 0.2 secs (far faster than you'll ever be able to turn something). Using one would also mean much better accuracy as both hands can be used to aim as in a rifle.

The better quality valve you buy, the more pressure it will stand and the faster it will operate. Seeing as time is money in your business, I'd test it out with a cheaper version then upgrade to something more robust, more reliable. The actual 'trigger' then becomes a simple push to make button.
 
YorkshireDave said:
Hmm. Okay. Get that. So what that means is that speed of operation is vital and this is why the guy on the video uses a smaller valve with lower operating torque hence increased speed and air distribution.

I see the issue. To me, the easiest way around this problem is a 12v solenoid valve. An electrically operated valve that opens in approx 0.2 secs (far faster than you'll ever be able to turn something). Using one would also mean much better accuracy as both hands can be used to aim as in a rifle.

The better quality valve you buy, the more pressure it will stand and the faster it will operate. Seeing as time is money in your business, I'd test it out with a cheaper version then upgrade to something more robust, more reliable. The actual 'trigger' then becomes a simple push to make button.
Click to expand...

Ok cool I'll roll with that:) Where do I buy a 12v solenoid valve? ;)
 
One other thing Ben.
Having now watched his video properly (get a life David...) YOu can massively improve this tools performance by spraying the inside of the barrel with a dry silicone prior to each shot. Using it lowers the coefficient of friction so you either go further/higher for the same pressure of shot or you use less pressure. It's use sees muzzle velocity climb considerably.

It could be that this trick is used by air gun enthusiasts to lift the performance of a rifle to over the airgun limit and well into firearm territory but on a temporary basis and without physical modification. Not that 'I' would know about such things...
 
ben brinnand said:
155 psi:)
Click to expand...
Hmm. At 10 bar (147 psi) you'll buy something small, quite low cost and fast operating. Using my 'trick' you can lower that pressure and still make your shot.
It also occurs to me that you could put a gauge onto the thing and calibrate it in feet/meters (basically by testing) so you only use air you need to use. By having a regulator on your air in, so you only pressurise to what distance you need, you'll waste far less air.

I'll now shut up :rolleyes:
 
YorkshireDave said:
Hmm. At 10 bar (147 psi) you'll buy something small, quite low cost and fast operating. Using my 'trick' you can lower that pressure and still make your shot.
It also occurs to me that you could put a gauge onto the thing and calibrate it in feet/meters (basically by testing) so you only use air you need to use. By having a regulator on your air in, so you only pressurise to what distance you need, you'll waste far less air.

I'll now shut up :rolleyes:
Click to expand...
Super cool, yet a bit scary how much you know about high speed projectiles :D Can you point me in the right direction as a quick google search bring up high speed and low pressure or low speed high pressure, not really sure what I'm looking for:(
 
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