Tri-cock: Difference between revisions
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: This valve is designed to be used on a boiler as a indication of water level, either to check the [[Water gauge|water gauge]] indication or as a method of checking water level when the water gauge is inoperative. Normally, one valve is installed on the desired operating level and one just below the high water level and, most important, one just above the minimum safe water level. In most full sized boilers the minimum level was what was considered as the minimum safe level over the crown sheet. | : This valve is designed to be used on a boiler as a indication of water level, either to check the [[Water gauge|water gauge]] indication or as a method of checking water level when the water gauge is inoperative. Normally, one valve is installed on the desired operating level and one just below the high water level and, most important, one just above the minimum safe water level. In most full sized boilers the minimum level was what was considered as the minimum safe level over the crown sheet. | ||
[[Tri-cock|Tri-cocks]] are often mounted on the backhead of the boiler, but are also seen on the [[Water column]] of a [[Water gauge]]. | |||
[[File:Gage Glass with Tri-cocks Dave Sclavi.jpg|thumb|center|300px|[[Water gauge]] with [[Tri-cock|Tri-cocks]].]] | |||
== External Links == | == External Links == | ||
* [http://www.chaski.org/homemachinist/viewtopic.php?f=8&t=92599 "Try 'Tri' cocks?", <i>Chaski.org</i>] | * [http://www.chaski.org/homemachinist/viewtopic.php?f=8&t=92599 "Try 'Tri' cocks?", <i>Chaski.org</i>] | ||
Latest revision as of 11:59, 5 April 2016
Definition from American Model Engineering Supply:
- This valve is designed to be used on a boiler as a indication of water level, either to check the water gauge indication or as a method of checking water level when the water gauge is inoperative. Normally, one valve is installed on the desired operating level and one just below the high water level and, most important, one just above the minimum safe water level. In most full sized boilers the minimum level was what was considered as the minimum safe level over the crown sheet.
Tri-cocks are often mounted on the backhead of the boiler, but are also seen on the Water column of a Water gauge.
