Glossary

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

Click on the alphabetic index to display terms beginning with the corresponding letter or search for a term below.

Actuator

Device used to open/close or control the valve. Key types include electrical, hydraulic and pneumatic. Movement may be quarter-turn or multi-turn. Actuators may be used when (i) valves are remotely located (eg, on pipelines) (ii) valves are located in hazardous areas (iii) manual operation would be time-consuming (eg, with larger valves)

Air valve

Valve that is used to control the flow of air. Flows are normally small, so solenoid valves are suited.

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