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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 12 names in this directory beginning with the letter R.
reasonably available control technology (RACT)
The environmental requirement for emissions from an existing boiler in a non-attainment area.
reciprocating feedwater pump
A positive-displacement pump that uses steam to apply pressure to a large piston in one cylinder connected to a small piston in another cylinder that pumps the water.
regenerative air heater
An air heater that is divided into three zones: the gases of combustion zone, the sealing zone, and the air zone.
A formed sheet-metal plate with slots where the metal is bent on an angle. Also known as a diffuser.
resistance temperature detector (RTD)
An electronic thermometer consisting of a high-precision resistor with resistance that varies with temperature.
reverse osmosis (RO)
A filtration process in which the water to be treated is pressurized and applied against the surface of a semipermeable membrane in order to demineralize it and remove its impurities.