SpudFiles Wiki - User contributions [en]

File:0525110733.jpg

2013-10-13T14:59:11Z

Markfh11q: Taken from thread: http://www.spudfiles.com/combustion-cannon-database/topic22784.html?hilit=control%20box

Taken from thread: http://www.spudfiles.com/combustion-cannon-database/topic22784.html?hilit=control%20box

Toolies Piston Valve

2009-03-22T06:31:31Z

Markfh11q:

A '''toolies piston valve''' is a type of inline barrel-sealing [[piston valve]] which allows inline (or any) [[launcher configuration|configuration]] launcher setup with more effective chamber volume than a simple coaxial barrel-sealing piston valve.

==Inner Workings==
The toolie's type valve consists of an air chamber. At one end (the pilot end), a large piston sits which is the same diameter as the inside of the pipe. A long rod (threaded rod, smooth rod, pipe nipple, whatever) reaches all the way to the other side of the chamber, where it ends in a sealing face only marginally larger than the outside diameter of the barrel. This rod also usually has a spacer to center it in the air chamber.

When the pilot is exhausted, the piston will move back because of the force pushing against the other side of the larger piston, and against the small exposed area on the barrel-sealing piston. Like most barrel-sealers, there is a "jump" in force as the barrel-sealer unseats from the back of the barrel, and the piston moves backwards.

==Implementations==
[http://www.spudfiles.com/forums/valve-trouble-t14475.html Valve implementation by judgment_arms]

[http://my.freeway.net/~toolies/ The Original]

[[category:valves]]

Toolies Piston Valve

2009-03-20T15:57:31Z

Markfh11q: New page: A '''toolies piston valve''' is a type of inline barrel-sealing piston valve which allows inline (or any) configuration launcher setup with more effective ch...

A '''toolies piston valve''' is a type of inline barrel-sealing [[piston valve]] which allows inline (or any) [[launcher configuration|configuration]] launcher setup with more effective chamber volume than a simple coaxial barrel-sealing piston valve.

==Inner Workings==
The toolie's type valve consists of an air chamber. At one end (the pilot end), a large piston sits which is the same diameter as the inside of the pipe. A long rod (threaded rod, smooth rod, pipe nipple, whatever) reaches all the way to the other side of the chamber, where it ends in a sealing face only marginally larger than the outside diameter of the barrel. This rod also usually has a spacer to center it in the air chamber.

When the pilot is exhausted, the piston will move back because of the force pushing against the other side of the larger piston, and against the small exposed area on the barrel-sealing piston. Like most barrel-sealers, there is a "jump" in force as the barrel-sealer unseats from the back of the barrel, and the piston moves backwards. The main difference between this valve and a barrel sealer, though, is that the piston starts to move backwards once the pilot starts to exhaust, like a chamber-sealing valve. This will require one to use a beefy exhaust valve, to ensure that the piston does not bounce.

==Implementations==
[http://www.spudfiles.com/forums/valve-trouble-t14475.html Valve implementation by judgment_arms]

[http://my.freeway.net/~toolies/ The Original]

[[category:valves]]

Mauler Valve

2008-08-03T02:07:15Z

Markfh11q:

The Mauler valve is a commercially available [[barrel]] sealing [[piston valve]] for the use in [[pneumatic cannon]], designed by Sean Gort.

An independent test by John Shell, author of [http://neospud.com/ NeoSpud], found that the Mauler valve yields [[muzzle velocity]] superior to that of the [[Supah-Valve]]. A [[chronometer|shooting chronograph]] was used to return muzzle velocity data.

The Mauler valve is unique in that it utilizes modified [[PVC pipe]], and fittings. In contrast the Supah-Valve has machined PVC bar stock for the internal components. Both [[valve]]s use a lathe to modify the components found in the valve. The Mauler using a wood lathe, and the Supah-Valve using a metal lathe. The difference between the wood, and metal lathe is how the tooling is controlled. On a metal lathe, the tooling is fixed in a mechanism, then moved along linear axises. With a wood lathe the tooling is held in the operators hands, steadied by a tool rest.

'''Specifications:'''
* 2" Female NPT Porting
* Encased in 2.5" PVC [[tee]]

==Variants:==
For every size variation the valve is given a different name.

'''NPT Porting:'''
* 1.5" - Shredder
* 1.25" - Ripper
* 1" - Stinger

==External Link==
Pictures and specifications of this valve can be found at [http://www.launchpotatoes.com/index.php?act=viewProd&productId=26 LaunchPotatoes]

[[category:valves]]

Check valve

2006-11-05T21:00:13Z

Markfh11q:

A check valve is a one-way valve which only allows a fluid or gas to flow one way through a system. Most are spring-ball or piston type which have a compressed piston or ball in them which is pushed up when air flows through one way, and closes again when pressure has equalized or air tries to flow the other way.

Check valves are useful for filling launchers via a male quick-disconnect. This way, a ball valve is not needed as a shut off. They can also be used for shutting off a high-pressure hybrid chamber and barrel from a lower pressure-rated system, (such as a fuel meter, air intake, or Generation II tank).