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Difference between revisions of "Plunger Valves"
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[[Category:Valves]]{{Knoppen}} | [[Category:Valves]]{{Knoppen}} | ||
[[File:Plunger Valve.jpg|thumb|right|Plunger Valves]] | |||
[[File:Plunger valve1.jpg|thumb|right|Plunger Valves]] | |||
'''Plunger Valves''' are the correct [[Valves]] to use whenever pressure heads or flow rates need to be safely and reliably reduced and controlled. They are used for two main tasks: | '''Plunger Valves''' are the correct [[Valves]] to use whenever pressure heads or flow rates need to be safely and reliably reduced and controlled. They are used for two main tasks: | ||
* By restricting the valve opening a change in flow conditions occurs where both flow velocity through the valve and pressure across the valve increases, resulting in conditions that create cavitation * To be able to control the pressure and flow precisely and finely, the valve's flow control characteristics must be as linear as possible over the whole opening range. | * By restricting the valve opening a change in flow conditions occurs where both flow velocity through the valve and pressure across the valve increases, resulting in conditions that create cavitation | ||
* To be able to control the pressure and flow precisely and finely, the valve's flow control characteristics must be as linear as possible over the whole opening range. | |||
[[Butterfly Valves]] and [[Gate Valves]], due to their design as isolation or, open or closed [[Valves]], are not suitable for continuous use as a variable flow control valve. | [[Butterfly Valves]] and [[Gate Valves]], due to their design as isolation or, open or closed [[Valves]], are not suitable for continuous use as a variable flow control valve. | ||