Toolies Piston Valve - Revision history

Boilingleadbath: + cross section

2009-08-27T22:50:16Z

+ cross section

← Older revision		Revision as of 17:50, 27 August 2009
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			[[Image:Wtooliepiston.png\|frame\|Cross-section of toolie-style piston valve; A is barrel, B is sealing face, C is chamber, D is drive rod, E is piston, F is pilot volume, G is pilot valve.]]
	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.		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.

Markfh11q at 06:31, 22 March 2009

2009-03-22T06:31:31Z

← Older revision		Revision as of 01:31, 22 March 2009
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	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.		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.		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==		==Implementations==

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...

2009-03-20T15:57:31Z

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...

New page

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]]