Sterling Deaerator Company

Lee's Summit,  MO 
United States
  • Booth: 4225

Sterling Deaerator Company

Sterling Deaerator Company is a leading worldwide supplier of spray-tray, package, and vacuum deaerators for over thirty years.  Sterling also offers continuous blowdown equipment, steam accumulators, blowdown HRS, surge tanks, and HTF expansion vessels. Sterling handles the largest projects efficiently from start to finish including Engineering, Drafting, Design, Fabrication, and Quality Assurance.

Brands: Deaerator Deaerators Continuous Blowdown Intermittent Engineering Fabrication Dissolved oxygen HTF Heat Transfer Fluid Expansion Vessels Accumulators Steam Package Vacuum Scrubber Tray


  • Deaerators
    Sterling Deaerator offers spray-tray, small scrubber type, vacuum, and package deaerators. Sterling has vast experience in all applications, serving Power Generation, Petro-Chemical, Cogeneration, Pulp and Paper, Light Industrial, and other industries....

  • Sterling has a design staff with over a century of experience to offer customers the most economical solution for each application. Through the aid of custom-designed software, Sterling can respond quickly to customer inquiries and match the customer’s needs with Sterling’s proven technology.

    Sterling is an active member of the Heat Exchange Institute (HEI) and continues to work in developing design standards for deaerators through HEI. Sterling is also active in the ASME and played a crucial role in the rewriting of ASME Performance Test Code Section 12.3. PTC 12.3 is the most widely accepted code for deaerator performance testing. Sterling is also active in the American Boiler Manufacturer’s Association.

    Models Available

    • Model HT - Horizontal type with no storage capacity; spray-tray technology
    • Model VT - Vertical type with no storage capacity; spray-tray technology
    • Model DT - Dome type with horizontal storage; spray-tray technology
    • Model VTHS - vertical deaerator with horizontal storage; spray-tray technology
    • Model HTHS - Horizontal deaerator with horizontal storage; spray-tray technology
    • Model DS - Dome type with integral, horizontal storage; spray-scrubber technology
    • Model UT - Upright with integral storage; spray-tray technology
    • Model HS - Horizontal type with integral horizontal storage capacity; spray-scrubber technology
    • Vacuum Type - Deaerators designed to operate under vacuum conditions
    • Package Units - Deaerator includes: support stand, pumps, piping, valves, strainers, and control systems.
  • Spray Valves
    Sterling utilizes two designs of its unparalleled spray valve for maximum dissolved gas removal, using the standard Single Cone and the High Efficiency Dual Cone Spray Valve to increase performance in difficult applications....

  • Standard Single Cone Spray Valve:

    Sterling’s standard single cone is recommended for normal operation.  The Sterling Spray Valve is cast from noncorrosive type 316L stainless steel to ensure maximum life. This self-adjusting spray valve can handle flow up to twice its rated capacity, while maintaining spray pattern. Because the Sterling Spray Valve is hydraulically non-guided, solid particles and debris pass harmlessly through clogging or reducing performance.  The thin film of feedwater sprayed into the steam atmosphere provides transfer and gas removal. The Sterling Spray Valve produces that thin cone of feedwater consistently over its operating range, resulting continuous deaerating performance.

    Dual Cone Spray Valve:

    Sterling’s patented (US Patent # 5,862,992) High Efficiency Dual Cone Spray Valve is utilized in difficult applications. Sterling’s Dual Cone Spray Valve adds a second, slightly smaller, cone of feedwater which produces a 71% increase in steam to water surface contact area within the deaerator’s spray zone. The Dual Cone Spray Valve is best suited for installation in existing deaerators to increase performance and reduce chemical costs. Upgrading is especially beneficial for underperforming deaerators. The Dual Cone Spray Valve is a direct replacement as well as most of our competitors’ spray valves, making it ideal for retrofit applications. Sterling also offers mounting adaptors for conversion from some competitors’ older designs to the Dual Cone’s bolting pattern.

  • Spray Trays
    Sterling Tray Assemblies are utilized in our tray-type deaerators. Sterling’s rugged, resilient stainless steel tray assemblies include models utilizing rivets or Perma-Lock clips and are designed for maximum feedwater retention and deaeration....

  • In addition to Sterling’s superior spray valve, our tray-type deaerators are also equipped with the Sterling Tray Assembly. The Sterling Tray Assembly is constructed of 16-gauge, type-430 stainless steel and is fastened in one of two ways, with stainless steel rivets or sturdy, interlocking stainless steel clips. Each tray assembly consists of two staggered rows of four tray channels. This staggered tray channel pattern ensures maximum feedwater retention and reduced pressure drop, which results in optimum heating surface and deaeration. The Sterling Tray Assembly, as well as the Sterling Spray Valve, is designed to be resilient: able to withstand upset and extreme conditions resulting in reduced downtime. Rugged construction combined with lower steam pressure drop extends deaerator life even under the most severe operating conditions. Sterling also offers trays for no-longer-existent companies, such L.A. Water Treatment. Sterling can replace most competitors’ trays.

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