| Click on Alphabet letter to view list of terms: | |
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | |
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Vacuum Pressure less than ambient atmospheric pressure measured in inches of mercury (Hg). |
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Valve A device which controls fluid flow direction, pressure or flow rate. |
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Valve, air A valve for controlling air. |
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Valve, directional control A valve whose primary function is to direct or prevent flow through selected passages. |
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Valve, directional control, 3-way A directional control valve whose primary function is to pressurize and exhaust a port. |
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Valve, directional control, 4-way A directional control valve whose primary function is to pressurize and exhaust two ports. |
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Valve, flow control (flow metering) A valve whose primary function is to control flow rate. |
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Valve, needle A flow control valve in which the adjustable control element is a tapered needle. Its usual purpose is the bidirectional control of flow. |
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Valve, pilot A valve applied to operate another valve or control |
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Valve, pilot operate (indirect) A valve in which a relatively small flow through an integral flowpath (pilot) controls the movement of the main elements. |
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