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Valves in boiler piping which facilitate removal of solid matter present in the boiler water.



Related Terms

GORGE

  1. A narrow opening between mountains, especially one with steep, rocky walls. 2. A collection of solid matter obstructing a channel, river, etc., as ice gorge

SLUG

A solid body of boiler water passed into the steam flow by priming or picked up from a pocket of condensate in the steam line.

DE-MINERALIZER

A device which removes dissolved matter from boiler pretreated water by contacting the water with ion-exchange resins.

BLOWDOWN VALVE

A valve generally used to continuously regulate concentration of solids in the boiler, not the drain valve.

BOILER PRIMING

An induction of boiler water caused by the steam flow into the steam line. The water may be in the form of a spray or a solid body.

SUSPENDED SOLIDS

Undissolved solids in boiler water.

GLOWING COMBUSTION

A reaction between oxygen or an oxidizer and the surface of a solid fuel so that there is emission of heat and light without a flame. Also known as surface burning.

ABOVE BOARD

On or above the deck, in plain view, not hiding anything. Pirates would secret their crews below decks, thereby creating the false impression that an encounter with another ship was a casual matter of chance.

LOWEST SAFE WATERLINE

The lowest water level in a boiler drum at which the burner may safely operate.

SUBLIMATION

Condition where a substance changes from a solid to a gas without becoming a liquid.

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