A perforated or slotted pipe or box inside the drum and connected to the steam outlet.


Related Terms

GAGE VALVE

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

OPERATING WATER LEVEL

The water level in a boiler drum which is normally maintained above the lowest safe level.

LOWEST SAFE WATERLINE

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

LONGITUDINAL DRUM BOILER

A boiler in which the axis of the horizontal drum is parallel to the tubes, both lying in the same plane.

LIQUID-SEALED METER

A type of positive displacement meter for gas flows consisting of a cylindrical chamber that is more than half filled with water and divided into four rotating compartments formed by trailing vanes; gas entering through the center shaft into one compartment after another forces rotation that allows the gas then to exhaust out the top as it is displaced by the water. Also known as drum meter.

INTERNAL BRAKE

A friction brake in which an internal shoe follows the inner surface of the rotating brake drum, wedging itself between the drum and the point at which it is anchored; used in motor vehicles.

DRUM

A container with a capacity of 55 U.S. gallons.

DRUM WATER LEVEL LINE

The water level in the drum during the normal operating mode.

LONGITUDINAL SEAM

A riveted or welded seam along the longitudinal axis of a boiler shell or drum.

BEAT TO QUARTERS

Prepare for battle (beat = beat the drum to signal the need for battle preparation)

Related questions

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