Features and Benefits

The following features and benefits apply to the Boilermate Deaerator product line. The Boilermate design uses a packed column to deaerate the water.
Less Mechanical Movement of Deaerator Components: The water spray valve is the only internal moving component within the deaerator vessel.
Two-Stage Deaeration in a Common Vessel: Recycle pumps are not required, packaged for easy maintenance.
ASME Code Design (Section VIII): Assures deaerator vessel quality in materials and fabrication to meet safety requirements.
Internal Stainless Steel Vent Condenser: Protects deaerator vessel against corrosive gases while providing a means for removal of corrosive gases from boiler feedwater.
Self-Cleaning Water Spray Valve: Maintains deposit-free surface, Reduces maintenance requirements.
Internal Automatic-Check Valve Prevents Steam Back-Flow: The water spray valve is normally closed at no flow, Prevents steam back flow through the water spray valve at no flow conditions.
Removable Water Spray Inlet Assembly: Flanged assembly allows easy access for maintenance and/or inspections.
Stainless Steel Deaeration Assembly: Ensures a longer life of wetted materials in intimate contact with corrosive liquids and released corrosive gases.
Pressurized Tank Reduces Flashing and Minimal Venting: Recovery of exhaust and turbine steam, Saves Btu's that would normally be exhausted to atmosphere, Improves plant efficiency.
Auto Vent Valve Eliminates Gases at Start-Up: Atmospheric contamination virtually eliminated for incoming water.
Exceeds ASME Recommendations for Oxygen Level: Cleaver-Brooks deaerator is guaranteed to remove oxygen concentrations to 0.005 cc/liter while operating between 5 and 100%capacity, Carbon dioxide concentration is practically reduced to a zero.
Integral Level Control Automatically Introduces Cold Water Make-Up to Supplement Condensate Only When Necessary to Meet Boiler Demand: Saves Btu's by accepting condensate before cold make-up water. Maintains a minimal water level within the deaerator vessel to prevent damage to the boiler feedpumps, and to maintain system operation.
Variety of Tank Sizes to Handle Volume-Swings in Condensate Return: Provides flexibility for selecting a tank for specific applications to limit the loss of hot condensate to drain.
Packaged Units for Cost Effective Installation: Complete packages are pre-fabricated in the Cleaver- Brooks manufacturing facility to ensure piping alignment and control wiring function. The unit is partially disassembled, match marked for efficient field re-assembly.
Internal Pump Suction Vortex Breakers: Eliminates the problems of loss in NPSHA (Net Positive Suction Head Available) and cavitation associated with the creation of vortices within pump suction piping.

Product Offering

Information in this section applies directly to Cleaver-Brooks packaged boilermate deaerators ranging from 1,500 lbs/hr at 50 °F makeup to 135,000 lbs/hr at 200 °F make-up. Larger capacities can be obtained by using two columns. The Boilermate deaerator is a pressurized packed column, low maintenance system designed to remove dissolved oxygen in boiler feed water to 0.005 cc per liter or less and eliminate carbon dioxide. A typical deaerator package includes the packed column and storage tank mounted on a stand of appropriate height along with all operating controls, feed pumps assembled and piped (typically knocked down for shipment and field assembly). The tank conforms to Section VIII of the ASME Code.

The packed column design is best for handling high-temperature returns. The column is constructed of a carbon steel casing with a stainless steel liner. Built into a flange on top of the column is a spring loaded self-cleaning water spray nozzle and an automatic and manual vent valve. From experience, large industrial plants and utilities have learned that the most practical and economical way to remove oxygen from feedwater is through mechanical deaeration. The Boilermate deaerator economically effects oxygen removal through a design that is trouble free in performance. Raw water, untreated and not deaerated, contains as much as ten cubic centimeters of corrosion-causing oxygen per liter. Oxygen in water corrodes and shortens the life of boiler feed lines, boilers and condensate return lines.

The Cleaver-Brooks designed deaerator assures high purity effluent by removing oxygen and other dissolved gases in boiler feed. Thus, it is the answer to long-lasting boiler equipment for industrial and commercial boiler users. Built of corrosion-resistant alloys for lifetime service, the deaerator employs those basic principals of gas removal proved to most effective and economical to every boiler owner. Contact your local Cleaver-Brooks authorized representative for component and sizing information.

The design of the Boilermate deaerator offers simplicity in both operation and service. The exchange packing, the heart of the deaerator, requires no maintenance. There are no moving parts to adjust or maintain. Installation is simple and quick.

Control Panel The control panel, complete with starters, fuse protection, switches, lights and pre-wired terminal blocks is mounted on the stand assembly. Wiring to feed pump motor and all controls is standard.

Deaerator Tank ASME construction - certified to 50 psig. All tanks provided with manhole, individual pump suction tappings and other openings as required. Saddles or legs standard on all sizes. Select from sizes for 5 to 30 minutes of storage to overflow.

Piping Pump and motor sets are mounted on individual bases before mounting on stand base. Individual suction piping (including strainer, shutoff valve, flexible connector) are provided for all feed pumps.