An automatically-controlled valve for maintaining a desired amount of water in a boiler.

A vessel designed to receive the discharge from a boiler blow-off outlet where the discharge is cooled to a temperature

Insurance specifically written to cover steam boilers and other pressure-related equipment in a building.

A closed vessel in which a liquid is heated or vaporized by the direct application of heat to the outside

Any oil, but esp. linseed oil, which has been partially polymerized by heating at about 500°F (260°C) together with driers

A wet run of material at the bottom of an excavation or under the sheeting of an excavation.

A plant which lives continuously in wet soil, but not in stagnant water.

On a theater stage, a hanger for an overhead track, from which scenery, flats, or panels are suspended.