PW Radial Blower Peerless

PW | Radial Blower

The Peerless Blowers PW | Radial Blower is a high pressure, low volume blower featuring a self-cleaning flat blade radial wheel, direct drive motor, configurable rotation, and multiple outlet orientations.

It is suitable for high-pressure clean air supply and dirty air exhaust in small commercial and industrial applications.

  • Small commercial and industrial applications
  • High pressure capabilities
  • ​​5 Models, 70 to 2,100 CFM, Max 12" SP
  • Arrangement 4 SWSI

Technical Specifications


Clean or Dirty Small Commercial and Industrial, High-Pressure Applications:

  • Laundry Exhaust
  • Conveying Supply Air
  • Cooling Supply Air
  • AIRFLOW: Clean and Dirty Air from 70 CFM to 2,100 CFM, up to 12" SP.
  • SIZE FORMAT: AMCA Arrangement 4 SWSI: Single Width Single Inlet.
  • WHEEL: Aluminum Die Cast Wheel with Straight, Flat Self-Cleaning Radial Blades. Diameters 7.75" to 13.5".
  • DRIVE: Direct Drive. Premium Efficiency, Fixed or Variable Speed, 120 to 480VAC Single or Three Phase, NEMA Enclosure and Frame Size Motors.
  • TEMPERATURES: 150°F Max.
  • INLET: Circular Inlet Duct Ring Diameter 4" to 8".
  • OUTLET: Rectangular Outlet 3" H x 3" W to 7.125" H x 5.75" W.
  • CONSTRUCTION: Steel Sheet, Gray Powder-Coated Finish. Indoor / Outdoor, Heavy-Duty.
  • SPARK RESISTANCE: Optional AMCA Spark A, B, or C Resistant Construction.
  • ​​APPROVALS: AMCA Certified Performance on PW Models. ISO-9001 Certified Shop. AMCA  Accredited In-House Test Laboratory.
Available Models
PW-8 7 3⁄4 283 4 1⁄3 0.082 0.057 3500 1⁄2
PW-9 9 475 5 3⁄4 0.129 0.087 3500 1⁄2
PW-11 10 5⁄8 786 7 1 1⁄2 0.187 0.091 3500 5⁄8
PW-12 12 1⁄2 1185 9 3 0.256 0.13 3500 7⁄8
PW-14 13 1⁄2 2100 12 7 1⁄2 0.336 0.271 3500 1 1⁄8

Constructed to withstand dusty, gritty, and particulate-carrying air at high pressures, Peerless' Radial Blower PW series is the definition of ‘industrial grade'.

Heavy die cast aluminum, straight radial blade design that self-cleans during use, maintaining its balance and assuring efficient airflow even in particulate-heavy conditions.

  • Heavy-Duty Die Cast Aluminum.
  • Dynamically Factory Balanced.
  • Self-Cleaning Design.
  • High Efficiency.

All fan housings can be fully rotated to reposition the discharge at any of eight pre-drilled 45° intervals, allowing for a wide range of installation and ducting configurations.

  • 45° Rotation Intervals.
  • Factory or Field Repositioning.
  • Housing Rotation Does Not Require Rebalancing.

Standard clockwise wheel rotation, bottom horizontal discharge position. Other rotations and discharge orientations can be supplied upon request.

  • ​​Clockwise Wheel Rotation Standard.
  • Optional Counter-Clockwise Wheel Rotation.

Indoor/outdoor, open-member steel frames keep motors, drivetrains, and wheels in alignment longer than formed sheet frames, resulting in longer maintenance intervals.

  • Fully-Welded Steel Frame.
  • Easy Maintenance Access.
  • Fewer Alignment Adjustments Needed.

Drive System
Direct drive, open ball bearing motors are fixed-mounted onto a welded base frame. No belt tensioning or bearing adjustments are necessary.

  • Factory-Set RPM Available.
  • Single Speed, TEFC, Inverter Duty Motor.
  • Explosion Proof Motor Options.

Peerless' Radial Blower PW series is available in Arrangement 4 SWSI.

Arrangement 4 SWSI
AMCA Arrangement 4 SWSI utilizes a direct-drive motor mounted onto a base frame, attached to the fan housing. The fan impeller is overhung on the motor shaft and does not need separate bearings.

  • Direct Drive with Overhung Impeller.
  • SWSI Type: Single Width Single Inlet.
  • ​No Bearings on Fan.
  • Onboard Motor.

With extreme applications in mind, the Peerless' Radial Blower PW series offers multiple options to extend the fan's service life even in aggressive particulate and soil conditions.

Weather Cover
The solid sheet metal Weather Cover installs over the drive and motor, offering weather protection without the need of a separately constructed penthouse or canopy.

  • Eliminates Separate Canopy Cover.
  • Solid Metal Protection.
  • Removable for Maintenance.

Vibration Rails
For sound and vibration sensitive applications, Peerless can provide spring or rubber-in-shear Vibration Isolation Rails and Isolation Pads.

  • Reduces Acoustical Impact.
  • ​Isolates Vibration.
  • Anti-Corrosion

To help protect against the abuse of particulates, greases, and acids, Anti-Corrosion Paint and Finish options can avoid premature housing damage in very aggressive applications.

  • Combats Very Aggressive Applications.
  • Prevents Premature Failure.
  • Ideal for Acids and Greases.

Spark Resistance
For applications where hazardous gases or other ignitable conditions exist, Peerless offers fully Spark-Resistant Construction and explosion-proof motors per AMCA Spark A, B, and C hazard classifications.

  • Hazardous Condition Protection.
  • AMCA Spark A, B, C.
  • Explosion Proof Motors.

Peerless can provide nearly any special motor specification, including multi-speed windings, stainless steel casings, washdown and other environmental ratings, inverter duty, explosion proof, IEC and other frame sizes, and more.

  • Any Compatible Motor Can Be Provided.
  • Domestic or International Frames.
  • Special Environment Ratings.


Heritage Products Catalogs | Centrifugal Radial Pressure Blowers KE, PW

Centrifugal Radial Pressure Blowers | PW

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