CRG Boiler Systems

Boiler Support : Deaerators

Critical equipment for boiler water systems

CRG offers a variety of deaerators sized from 5,000 pph to 250,000 pph. Deaerators are guaranteed to remove oxygen in boiler feedwater to .005cc/liter. Each unit is designed, constructed and stamped in accordance with the ASME Code of Pressure Vessels and inspected and registered with the National Board of Boiler & Pressure Vessels. This unit may be built with single or multiple pump applications using only name brand pumps, primarily Grundfos. (others available upon request)

Advantages of using a deaerator

• Removes carbon dioxide as well as oxygen

• Raises boiler feedwater temperature, eliminating thermal shock in boilers

• Eliminates the need of expensive oxygen scavenger chemicals, while improving on boiler room efficiency

• The undeaerated fresh water is fed into the deaerator through the inlet water connection. The water temperature is raised and many of the undissolved gases are released, as the water passes through the assembly, it flows to a scrubber section where final deaeration is accomplished by scrubbing the water with oxygen free steam. This steam is induced through a stainless steel spray valve assembly which causes the high velocity steam to break the water down to a fine mist through a violent scrubbing action, the deaerated water spills over to the tanks storage compartment for use by the boiler, and the gases are vented to the atmosphere.