PWB Radial Blower Peerless

PWB | Radial Blower

The Peerless Blowers PWB | Radial Blower is a high pressure, low volume blower featuring a self-cleaning flat blade radial wheel, belt 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 industrial applications
  • ​​5 Models, 60 to 2,322 CFM, Max 15" SP
  • Arrangement 10 SWSI

For detailed information, download the PWB catalog

Technical Specifications


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

  • Laundry Exhaust.
  • Conveying Supply Air.
  • Cooling Supply Air.
  • AIRFLOW: Clean and Dirty Air from 60 CFM to 2,322 CFM, up to 15" SP.
  • SIZE FORMAT: AMCA Arrangement 10 SWSI: Single Width Single Inlet.
  • WHEEL: Die Cast Aluminum Wheel with Straight, Flat Self-Cleaning Radial Blades. Diameters 7.75" to 13.5".
  • DRIVE: Fixed or Adjustable Pitch V-Belt Sheave Drive. Premium Efficiency, 120 to 480VAC Single or Three Phase, NEMA Enclosure and Frame Size Motors.
  • TEMPERATURES: 180°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 PWB Models. ISO-9001 Certified Shop. AMCA  Accredited In-House Test Laboratory.
Available Models
[in WG]
PWB-8 7 3⁄4 360 6 0.7 0.08 0.06 4506 3⁄4
PWB-9 9 608 8 1.42 0.13 0.06 4508 3⁄4
PWB-11 10 5⁄8 990 12 2.86 0.19 0.09 4480 3⁄4
PWB-12 12 1⁄2 1352 12 4.3 0.256 0.13 4074 1
PWB-14 13 1⁄2 2322 15 8.35 0.336 0.27 4004 1

Combining self-cleaning radial blade performance and adjustable belt drive flexibility, Peerless' Radial Blower PWB series solves your high-pressure challenges with ease.

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
Adjustable or fixed V-belt drive with cast iron adjustable pitch sheaves, heavy-duty motor base rails, ground and polished keyed shafts, and motors are fixed-mounted onto a welded base frame.

  • Adjustable Motor Base for Belt Tensioning
  • Factory-Set RPM Available.
  • Single Speed, TEFC, Inverter Duty Motor.
  • Explosion Proof Motor Options.
  • 100K Run Hour Bearings.

Peerless' Radial Blower PWB series is available in Arrangement 10 SWSI.

Arrangement 10 SWSI
AMCA Arrangement 10 SWSI features a space-efficient, packaged design with an onboard motor mounted within the fan's bearing pedestal.

  • V-Belt Drive with Overhung Impeller.
  • SWSI Type: Single Width Single Inlet.
  • ​Normal Duty, 100k Run Hour Bearings.
  • Onboard Motor.

High-pressure, low-volume applications can often benefit from functional and performance customization, and that's why Peerless' Radial Blower PWB series offers a wide variety of factory options.

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.

Belt Guard
Our heavy-duty Belt Guard is fabricated from expanded metal and installed over the V-belt drive end of the fan, providing personnel protection from the drive's moving parts.

  • Added Personnel Protection.
  • Covers All Rotating Parts.

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 Finishes
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 PWB

Centrifugal Radial Pressure Blowers | PWB

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Inside Sales Manager

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Inside Sales Manager

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