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Help me find this air valve

Blacksheep10

Blacksheep10

Well-known member
Joined
May 19, 2020
Member Number
91
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495
I made a pneumatic golf ball launcher out of a spare old cheetah tank and 2” ball valve. Worked well with 2” tube on it. I need the valve to open faster and be lighter. First plan was a bimba cylinder to actuate the ball valve but I don’t think I can get the speed at the force required to do it quickly enough.
there is a cheetah on Amazon that looks like what I need but I can’t find just the valve.

Amazon.com: Tengchang Portable Tire Bead Seater Air Blaster Tool Trigger Seating Inflator 8L Black : Automotive

Buy Tengchang Portable Tire Bead Seater Air Blaster Tool Trigger Seating Inflator 8L Black: Air Compressors & Inflators - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com

Any ideas? I am aware that I can just buy the whole unit for a reasonable amount but that isn’t very fun.

3527350C-308E-4865-BF88-2D3ADE922781.png
 
google you how the potato gun guys do it with PVC fittings
they got a design for a valve that the tank pressure slams open, pilot operated with a small chamber that you vent to actuate the valve
 
Not crazy about using pvc parts :laughing:. That said, I'll do some reading/googling
 
SomeGuyFromOlympia said:
This seems safe enough to me
carry on :laughing:
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Honestly, it is just a bead blast tank with a golf ball in the barrel. Pretty standard stuff, I just want to have a small portable one golf bag length for a charity golf tourney this summer. It's the athletic tournament, and is just a drunk fest shit show to benefit the football/wrestling teams here in my small town. There is one long hole that dogs left about 150 yards in and I can't drive it to save my life. I also kind of suck at golf and rarely play. With seamed tube you can put some spin on the ball I've found. Thinking I can put in a small radius with my roller with the seam out and get some movement on the ball. Stupid time suck that will maybe maim somebody? Perhaps, but you have to have a sense of adventure.
 
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486, the quick dump valve is what they used to break the sound barrier with a baseball, watched a vid a few months back. Pull a plug back from the start of the barrel with a valve larger than the surface area of plug/piston head. Not reinventing wheels, maybe I'll save time and buy the amazon one, looks like a diaphragm on the actuation side. Thought it might be common
 
Blacksheep10 said:
Honestly, it is just a bead blast tank with a golf ball in the barrel. Pretty standard stuff, I just want to have a small portable one golf bag length for a charity golf tourney this summer. It's the athletic tournament, and is just a drunk fest shit show to benefit the football/wrestling teams here in my small town. There is one long hole that dogs left about 150 yards in and I can't drive it to save my life. I also kind of suck at golf and rarely play. With seamed tube you can put some spin on the ball I've found. Thinking I can put in a small radius with my roller with the seam out and get some movement on the ball. Stupid time suck that will maybe main somebody? Perhaps, but you have to have a sense of adventure.
Click to expand...
This is awesome
 
Blacksheep10 said:
Honestly, it is just a bead blast tank with a golf ball in the barrel. Pretty standard stuff, I just want to have a small portable one golf bag length for a charity golf tourney this summer. It's the athletic tournament, and is just a drunk fest shit show to benefit the football/wrestling teams here in my small town. There is one long hole that dogs left about 150 yards in and I can't drive it to save my life. I also kind of suck at golf and rarely play. With seamed tube you can put some spin on the ball I've found. Thinking I can put in a small radius with my roller with the seam out and get some movement on the ball. Stupid time suck that will maybe maim somebody? Perhaps, but you have to have a sense of adventure.
Click to expand...
I worked with a machinist that made a civil war style cannon that fit conveniently ......golf balls

He is still alive, you are good to go

Just film it:laughing:
 
SomeGuyFromOlympia said:
I worked with a machinist that made a civil war style cannon that fit conveniently ......golf balls

He is still alive, you are good to go

Just film it:laughing:
Click to expand...
If you substitute a 1 lb lead ball fishing weight + cotton patch for the golf ball, two 35mm film canisters of black powder will send it through a car door :eek: :laughing:

. . . "allegedly" :flipoff2:
 
Blacksheep10 said:
Not reinventing wheels, maybe I'll save time and buy the amazon one, looks like a diaphragm on the actuation side. Thought it might be common
Click to expand...
I did a quick search for air/air pilot valves in the 1.5" flavor, and everything I found was way more than the tire blaster you linked.

If you want compact overall length, consider a 180 after the tank. I did that years ago on an ABS spud gun & it worked great. Going from a potato cannon to a "bullpup" potato cannon earned me bragging rights for the most overthunk spud chunker that summer :laughing:
 
I have something like that in my storage, I'll check in the AM.
 
IIRC when I was putting way to much energy into a spud gun the searching I did suggested using lawn irrigation valves. I may be wrong butits an idea.
 
I suppose I didn’t mention I have a 2 inch butterfly valve off of eBay that I am going to burn a handle for. It is heavy as hell. Just bought a bimba off of Amazon cheaply, we will see if it opens it rapidly enough whenever it gets here.
Greg, I’m just not crazy about using plastic and that also adds the complexity of a battery. I really liked that light in line aluminum housed diaphragm valve in my original post but if that is not a common thing that people can figure out search terms for, I will try the bimba and then I will try just buying that cheetah and modifying the barrel
 
surpip said:
2 wires
complx
Click to expand...
Adding more systems adds weight and complexity no? I have Milwaukee battery adapters for my flamethrowers, I am capable but at the same time if I can trigger it by the air that is already in the tank I don’t know why I want to add a solenoid valve and a battery. Plus plastic.
 
Blacksheep10 said:
I suppose I didn’t mention I have a 2 inch butterfly valve off of eBay that I am going to burn a handle for. It is heavy as hell. Just bought a bimba off of Amazon cheaply, we will see if it opens it rapidly enough whenever it gets here.
Greg, I’m just not crazy about using plastic and that also adds the complexity of a battery. I really liked that light in line aluminum housed diaphragm valve in my original post but if that is not a common thing that people can figure out search terms for, I will try the bimba and then I will try just buying that cheetah and modifying the barrel
Click to expand...
I've built plenty of spud launchers with the sprinkler valves. To get rid of the electrics, just unscrew the solenoid and screw in an air gun. All that solenoid does is open the pilot passage, the air gun will do the same thing and do it faster. I was easily slinging potatoes 300yds out of a 2.5" x 6' barrel.

www.alltiresupply.com

MTP Auto Release Valve for Aluminum Bead Seater Tank

Are you looking for a replacement auto-release valve for your MTP aluminum bead seater tank? The front and back valve hole is 1.5-inch threaded and made of durable materials that.
www.alltiresupply.com www.alltiresupply.com

Anyway, here's what looks like the valve you need.
 
ExWrench said:
I did a quick search for air/air pilot valves in the 1.5" flavor, and everything I found was way more than the tire blaster you linked.

If you want compact overall length, consider a 180 after the tank. I did that years ago on an ABS spud gun & it worked great. Going from a potato cannon to a "bullpup" potato cannon earned me bragging rights for the most overthunk spud chunker that summer :laughing:
Click to expand...
I built one out of PVC that had the barrel down into a larger 6" pipe with a reducer.
air tank was half the barrel. Stood about 6 feet.

hucked taters 400 yards with some ether and a piezo ignitor. It was cool to watch the flame front go from the front of the tank and out the barrel.
 
I've got a bunch of these in use and they work well but I've timed them. You could use the tank pressure to drive one side through a parking brake valve and get it to open pretty fast I'd think.
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2" Pneumatic Ball Valve Double Acting Air Actuated Actuator Ball Valve 1000 psi | eBay

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so what size pipe is it for golf balls? I remember looking at PVC when I built my spud gun and not finding the right size for a golf ball.
 
surpip said:
so what size pipe is it for golf balls? I remember looking at PVC when I built my spud gun and not finding the right size for a golf ball.
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2" x .120 (shit, maybe .095, 2 month ofl memory) is a touch loose, but cramming a 2" ball valve open with 140 psi as fast as you can using a square tube lever, you can't get it all the way open before the ball is clear of a 13' tube. I've slow mo'd the vid as much as my iphone can and you can see the orange ball before the lever is past maybe 80% open. Trying to get a bit of spin, so seam tube seems to work well. Not predictable yet, but more testing needed.
 
Why am I thinking there was a Mythbusters episode with a build like this, only bigger
 
I work on fast closing valves regularly. mostly very large stuff (18" closing in .3 seconds)
the fastest option will be the ball valve with double acting actuator. Butterfly will be ok but still has the disc in the line and is bulky if you are holding it.
Piloted Quick Exhaust valves will work and they are made up to 2.5" size, again bulky and will get very pricy.

or just get this :smokin:

 
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