Find new and used industrial de-aerators for sale with The Commercial Trader. Whether you’re removing dissolved oxygen from boiler feedwater to prevent corrosion, deaerating process liquids for product quality, or improving steam system efficiency, we connect you directly with trusted UK and European sellers offering de-aerators across every major technology.
Browse new and used industrial de-aerators across every format. Use our filters to narrow by manufacturer, condition, capacity, design pressure and materials of construction.
Each listing comes from verified sellers with detailed specifications, PED/UKCA certification and service history available where applicable. Need help specifying a de-aerator for your system? Get in touch via our contact page for guidance, or browse the related categories below.
Industrial Machinery Categories
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An industrial de-aerator is a piece of process equipment that removes dissolved gases (primarily oxygen and carbon dioxide) from water or process liquids. In steam systems, de-aerators are critical for protecting boilers, pipework and steam plant from oxygen-driven corrosion. The de-aerator heats the feedwater to near its saturation temperature and provides a large surface area for gas release, typically reducing dissolved oxygen to below 0.005 mg/litre (7 ppb). Industrial de-aerators are typically specified by water capacity (m³/hr or kg/hr), storage volume, design pressure and the de-aeration performance (residual oxygen level) they achieve.
Quality industrial de-aerators routinely operate for 25-40+ years. The pressure vessel structure typically lasts the working life of the asset, with periodic PSSR inspection confirming integrity. Spray nozzles, trays, valves and instrumentation are routine maintenance items. Stainless steel de-aerators offer the longest service life in corrosive or high-purity applications.
De-aeration is essential to protecting steam plant and ensuring product quality in oxygen-sensitive processes.
Industrial de-aerators are good candidates for second-hand purchase because the pressure vessel structure lasts for decades.
Spray-type de-aerators atomise feedwater through spray nozzles into a steam atmosphere, providing large surface area for rapid gas release. Compact and efficient, common in small and medium steam systems and packaged boiler installations.
Tray-type de-aerators cascade water over a series of trays in a steam atmosphere, providing prolonged contact and very effective de-aeration. Standard for larger steam systems and applications requiring very low residual oxygen. Often combined with spray sections in spray-tray designs.
Vacuum de-aerators operate below atmospheric pressure to remove gases at lower temperatures, ideal for process liquids that can’t be heated, including beverages, edible oils and heat-sensitive products. Common in food, beverage and specialty chemical processing.
Complete packaged de-aerator systems combine the de-aerator head, storage tank, feed pumps, controls and instrumentation in a single skid. Standard for boiler house installations, offering fast installation and integrated control.
As a buyer-to-seller marketplace, we feature industrial de-aerators from sellers across the UK and beyond. Use our location and distance filters to find equipment near your facility, supporting site visits and reducing transport costs.
As we operate as a buyer-to-seller marketplace, any returns policy must be agreed directly with the seller before purchase. We’d recommend pre-purchase inspection wherever possible, including a review of pressure certification, PSSR inspection records, internal condition and spray nozzle or tray condition.
This category forms one part of our wider industrial machinery marketplace. Browse the full range of New and Used Industrial Machinery, or jump into a specific sub-category below:
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