A pipe conducting steam discharged from a safety valve to a safe location.


Related Terms

SEA VALVE

A shut off valve through the hull for intake or discharge piping.

GAGE VALVE

A valve attached to a water column or drum for checking water level.

TRY VALVE

One of three valves mounted on a boiler or water column within the visible range of the gauge glass and used to check the water level.

POPPET VALVE

A cam-operated or spring-loaded reciprocating-engine mushroomtype valve used for control of admission and exhaust of working fluid; the direction of movement is at right angles to the plane of its seat.

PNEUMATIC CONTROL VALVE

A valve in which the force of compressed air against a diaphragm is opposed by the force of a spring to control the area of the opening for a fluid stream.

PNEUMATIC CONTROLLER

A device for the mechanical movement of another device (such as a valve stem) whose action is controlled by variations in pneumatic pressure connected to the controller.

PLUG VALVE

A valve fitted with a plug that has a hole through which fluid flows and that is rotatable through 90 for operation in the open or closed position. Also known as plug cock.

PISTON VALVE

A cylindrical type of steam engine slide valve for admission and exhaust of steam.

PENSTOCK

1. A valve or sluice gate for regulating water or sewage flow. 2. A closed water conduit controlled by valves and located between the intake and the turbine in a hydroelectric plant.

OVERRIDING PROCESS CONTROL

Process control in which any one of several controllers associated with one control valve can be made to override another in accordance with a priority requirement of the process.

Related questions

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