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Howden Spencer Blowers





Category:Centrifugal Blowers, Vacuum Systems, Regenerative and Multi-Stage Blowers
Regions/Markets Represented:Worldwide except for the United States, Canada, and Japan
Location:Windsor, Connecticut, United States


Blowers & Vacuum Systems with an Engineering Edge

Dorian Drake’s Industrial & Environmental Group is the sales and marketing representative of the Howden Spencer™ brand of centrifugal blowers, vacuum systems, gas pressure boosters, and other industrial blowers.

Since 1892, The Spencer Turbine Company were known for their innovative solutions for air and gas handling challenges. In 2021, they were acquired by Howden from Alliance Portfolio Holdings Inc. Today, Howden Spencer™ continues as a worldwide leader in highly engineered products that meet the demands of the industrial, municipal, institutional, and commercial markets.

Download Catalog - Dorian Drake International website

Manufacturer Products

  • Aeration Blowers    • Digester Gas Booster Systems
  • Dissolved Oxygen Control Equipment
  • Custom Electrical Control Panels
  • Cast Multistage Centrifugal Blowers
  • Regenerative Blowers
  • Single Stage Centrifugal Blowers and Vacuum Producers
  • Special Regenerative Blowers


Repair and Maintenance

Spencer provides complete in-house and field service for all Spencer products. They are available for startup, maintenance, and customer personnel training to maintain and operate your Spencer equipment. Spencer’s engineers develop special air & gas handling equipment. They use specialized metals like custom aluminum, Monel®, Hastelloy®, stainless steel, brass, titanium, etc.

Research and Testing

Laboratory Application studies, product development and testing programs are conducted by in-house professional engineers. More than a century of air and gas handling expertise has created a unique capability.


  • Water and municipal wastewater treatment facilities that require continuous-duty aeration blowers
  • Chemical and petrochemical plants where highly customized equipment is required to handle the processing of nasty gases
  • Food processing plants that must quickly remove wet and dry spills around equipment
  • Plants in the process industries where housekeeping using central vacuum systems with explosion proof safety features are vital to reducing the risk of combustible dust explosions
  • Electronics and aerospace cleanrooms that need powerful vacuum systems to maintain required levels of cleanliness
  • Public utilities requiring digester gas boosters to recover flammable gas for sale or use
  • Restaurants and healthcare facilities where available natural gas street pressures call for a gas booster to meet required pressure levels for boilers, heaters and ovens
  • Carwashes, car rental agencies and detailing shops that need long-life, dependable, rugged vacuum cleaning power
  • OEM manufacturers looking for reliable, customized air handling modules that suit their product parameters
  • Continuous galvanizing lines in the steel industry
  • Flotation cell application for the mining market

Cast Multistage Centrifugal Blowers and Vacuum ProducersSpencer-Power-Mizer-Centrifual-Blower

Power Mizer® blowers have rugged cast iron and cast aluminum components for heavy-duty service. They offer the first real improvements in blower technology in nearly 100 years, with uniquely shaped impellers and other advancements that achieve a peak adiabatic efficiency above 80%. Range of models to 35,000 ICFM (59465 m3/hr), 28 PSIG (193 kPa), 19″ Hg (6564 mm H2O) vacuum.

Regenerative Blowers

Vortex® single stage regenerative blowers are ideal for compact installation to deliver clean, oil-free air. Quiet, pulsation-free, low maintenance operation with up to 645 SCFM (1096 m3/hr) volume, 3.9 PSIG (27 kPa) pressure, 7.6″ Hg (2621 mm H2O) vacuum. Standard models equipped with UL Listed, CSA approved and CE compliant, TEFC motors.

Special Regenerative Blowers

Spencer Vortex® regenerative blowers are available as customized units. Blowers can be modified for special applications requiring different surface treatments including Teflon® coatings, anodizing, white epoxy paint, stainless steel paint and custom paint colors. Bases can be fabricated from stainless steel and drilled with inspection ports. Special motors include explosion-proof, premium efficiency and chem duty.

Digester Gas Booster Skid Packages

Custom designed systems to move digester gas and raise its pressure to desired levels. Spencer packages are pre-piped, prewired and packaged with all system accessories on a compact skid. To deal with corrosive gases, the system is equipped with a multistage hermetically sealed gas booster featuring a stainless steel housing, anodized aluminum impellers and an Inconel electrical connector.

Single Stage Centrifugal Blowers and Vacuum Producers

Used in OEM air handling equipment and in plant and process applications requiring uniform airflow, either pressure or vacuum, over an entire volume range. Typical uses: pneumatic conveying, exhausting, combustion air delivery, ventilation, materials handling, air curtains, drying. Volumes to 50,000 SCFM (84950 m3/hr), pressure to 3.5 PSIG (24 kPa).Spencer-control-panel

Custom Electrical Control Panels

Spencerʼs in-house engineering design and manufacturing capabilities offer custom control panels equipped with microprocessors, PLCs, data acquisition instruments, remote process controls, and multiple blower sequencers. These all can be tied to SCADA Systems for central control. UL and CUL Listed are available.


Interested in distributing or buying Howden Spencer™ products?

For more information, speak to an authorized representative from Dorian Drake International.

Dorian Drake Internationla - Download Catalogs for Bionix Medical Devices


Manufacturer Website: www.howden.com/en-us/supported-products/spencer