Deaerators & Surge Tanks

Shipco 300

SHIPCO PUMPS – The mechanical deaeration process is one of the most economical methods for removing corrosive gases such as dissolved oxygen from boiler feed water. Dissolved oxygen in feed water is the major cause of boiler corrosion. A standard .03 deaerator design removes dissolved oxygen to a maximum level of .03 cubic centimeters per liter of feed water; rating can also be expressed as 44 parts per billion of oxygen in the feed water by weight. A standard .005 deaerator design removes dissolved oxygen to a maximum level of .005 cubic centimeters per liter of feed water; rating can be expressed as 7 parts per billion of oxygen per liter of feed water.

A surge tank increases the storage capacity of boiler feed system. It performs similar function to a boiler feed unit except it feeds a deaerator instead of a boiler. A surge tank is typically used on systems having more than 20% hot condensate returns. Two designs are available—either a two-compartment style (deaerator models with “2C”) or a two-tank style (deaerator models with “2T”). The tank can be floor-mounted or elevated.


 superior logo

SUPERIOR BOILER WORKS – The Superior Boiler Works Deaerator Systems are Complete Packaged Systems, designed, built and stamped in accordance with the ASME code for 50 PSIG.  Constructed with all stainless steel direct contact internal vent condenser, all stainless steel adjustable spray valve(s) and a 10 minute minimum storage capacity.



PARKER BOILER – The Parker Deaerator incorporates a number of features, which make it unique on the market, more modern, with fewer moving parts, simpler and easier to operate.

The Parker Deaerator design has been shown to reduce the residual oxygen level in make-up water to below 7ppb or .005cc per liter,  CO2 is virtually zero. The unit provides a complete packaged assembly for easy field installation.



A steam boiler is only as reliable as the feedwater system supplied with it. Precision is one of a select few manufacturers you can trust to supply a total steam generating package—not just the right steam boiler or generator. We design and fabricate a broad range of feedwater collection and pumping systems, including ASME code deaerators as well as non-code condensate storage tanks. Precision’s engineers and sales representatives will work together to recommend the feedwater package that best fits the application’s steam demand profile and minimizes the volume of both make-up water consumed and the quantity of feedwater chemistry used. Precision will propose a total package solution that increases the system’s reliability, extends its life, and minimizes both maintenance and operating costs over time. In addition to deaerators (SP/spray and TR/tray) and condensate receivers (CF) with feedwater pump packages, we also offer chemical feed packages and water softeners to create a truly complete steam boiler room solution.

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