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Boiler- & Burner-Related Glossary Terms
Trying to learn your way around your boiler? These terms are a great place to start.
There are currently 19 names in this directory beginning with the letter D.
A plate that is attached to a piece of equipment that provides important information about that equipment.
A deaerator feedwater heater operating under pressure used to separate oxygen and other gasses from the steam before releasing the gasses to the atmosphere through a vent.
An ion-exchange conditioner consisting of a strong cation-exchange resin and a strong anion-exchange resin that purifies water more than is possible with a zeolite softener.
An accessory used to remove heat from superheated steam to make it suitable for a process.
diaphragm draft gauge
A draft gauge that measures draft using a flexible diaphragm connected with linkage to a pointer on a scale that is calibrated in inches or fractions of an inch of water column.
digital control system
An integrated system of control loops that use digital control signals to control a process
A level-measuring instrument consisting of a cylinder, heavier than the liquid in which it is immersed, connected to a spring or torsion device that measures its weight. Also known as a pneumatic level control.
A pressure gauge used to measure the difference in draft pressure between the atmosphere and the furnace, breeching, or stack.
A desuperheater that routes steam back through coils of submerged piping within the steam drum.
dry pipe separator
A closed-end pipe, perforated at the top, with drain holes on the bottom to remove moisture from steam.
A firetube boiler with a refractory lined rear door that directs the gasses of combustion from the furnace to the second-pass tubes and then through succeeding passes if so designed.