Power Mizer® Cast Centrifugal Blowers

In addition to major components of cast iron, Power Mizer blowers have cast aluminum impellers with three-dimensional blades that transfer energy to the airstream with very high efficiency. In continuous-duty industrial processes and wastewater aeration applications, they offer energy savings of thousands of dollars per blower per year. Performance specifications include pressure to 28 psig (193 kPa), volume to 35,000 icfm (991 m3/min); power to 2000 hp (1491 kW).

Description

Power Mizer blowers represent the culmination of years of research and experimentation as Spencer engineers applied our Engineering Edge to the task of creating more energy-efficient, power-conserving cast blower technology.

The air handling components of these blowers were designed in the Spencer Development Laboratory. By avoiding abrupt velocity changes that create turbulence and waste energy, our engineers achieved smoother, more energy-efficient airflow from blower inlet to discharge.

In industries around the world, Spencer Power Mizer® multistage cast centrifugal blowers provide high efficiency air delivery in heavy-duty process applications such as:

  • Desulfurization processes
  • Wastewater aeration
  • Air knives
  • Hazardous vapor control
  • Soil remediation
  • Fluidized beds
  • Central vacuum systems
  • Felt dewatering
  • Landfill gas boosting
  • Combustion air delivery

Unique setup of Power Mizer blowers in series, driven by a single motor, delivers air for a high altitude test rig for automotive engines

In another prime area of usage, water and wastewater treatment, Power Mizer blowers serve demanding and non-stop applications such as:

  • Wastewater aeration
  • Sewage aeration
  • Odor control
  • Grit chamber aeration
  • Channel aeration
  • Filter backwash

Cast Components with Low Operating Sound Levels

The inlet section, return channels and discharge section of Power Mizer blowers are gray cast iron with excellent strength, chemical resistance and sound attenuation.

The rotor assembly of Power Mizer blowers in Series 4000 and larger contains cast aluminum impellers. Their three-dimensional blades transfer energy to the airstream with very high efficiency. Blade configurations include radial, backswept and combinations of both, selected by Spencer engineers using specialized computer software.

Superior Aerodynamics

Uniquely shaped impellers, return channels with airfoil-shaped vanes, redesigned inlet and discharge passages and vaneless diffusers all contribute to a peak adiabatic efficiency that is above 80%. The highest efficiencies are achieved without baffle rings at each stage. The result is a much simpler design with fewer parts.

Precisely Balanced Rotors

Spencer’s exacting balancing procedures produce an overall vibration level of 1.0 mil or less – the best in the industry. This decreases bearing stress, which improves bearing life and blower reliability.

Year-In, Year-Out Savings

Power Mizer blowers offer long-term power savings of tens of thousands of dollars per blower per year. And you can often downsize the motor to save even more!

Manufacturer

Since 1892, The Spencer Turbine Company has applied a unique Engineering Edge to create innovative solutions for air and gas handling problems. Today, the world faces extreme challenges in the areas of energy and the environment. They call these issues E2 and are addressing them with our own E2 combination of Engineering and Experience.

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