PDSP-FR Series

Product Information

View Performance Data PDSP-FR
Three Hour Rating - Lay-In

PRICE PDSP-FR perforated face high capacity modular core directional diffusers are Fire-Rated Assemblies listed in the UL Listed (Underwriters Laboratories Fire Resistance Directory) and ULC Listed (Underwriters Laboratories of Canada Equipment and Materials Directory). This design meets time versus temperature test criteria and NFPA 90A requirements.

The Price PDSP-FR Series perforated face ceiling diffuser features a ceiling-hugging horizontal air pattern that is field adjustable between a standard 4 way side throw to a star pattern 4 way diagonal throw. Curved blade deflectors mounted at the diffuser neck maintain a consistent horizontal pattern, even at low flow rates, making the PDSP-FR Series an ideal choice for VAV applications. Quick-release latches on the hinged perforated face screen allow easy access for field adjustment of the blades. The drop (extended) face Model PDSPE-FR is available to complement tegular tile ceilings.

  • Choice of cold rolled steel (PDSP-FR/PDSPE-FR) steel backpan and pattern controllers in both cases.
  • 4 way pattern available with either factory set side throw or diagonal throw. Side or diagonal throw can be easily changed in the field.
  • Hinged, removable perforated face screen with quick-release spring latches.
  • Pattern can be field adjusted from horizontal to vertical by turning the blades.
  • 3 way horizontal pattern is achieved by redirecting one segment of blades in the opposite direction.
  • Non-adjustable, butterfly-type ceiling radiation damper.
  • Designed for use in an exposed grid suspension ceiling (T-bar Lay-in) with a three hour or less restrained or unrestrained assembly rating. Units must be installed in accordance with the instructions that accompany each unit.
  • Thermal blanket is non-asbestos.
  • Standard 165 °F [74°C] fusible link, optional 212 °F [100 °C] fusible link.
  • Optional adjustable volume controller (Allen key adjustable).
  • Optional T-bar Lay-in Panel 24" x 24".

White Powder Coat
For optional and special finishes see
color matrix.



    Product Selection Checklist

  1. Select Inlet diameter or Neck Size L x W based on desired performance characteristics.
  2. Select Face Size based on ceiling module.
  3. Select Outlet type by model number (Material, Flush or Drop Face).
  4. Select Border style according to installation requirements.
  5. Select Air Pattern Option (4, 4D).
  6. Select Volume Control accessories, if desired.
  7. Select Finish.

Example: 8" / 24" x 24" / PDSP-FR / 3 / 4 / B12

Available Module Sizes
24" x 24"
610 x 610
12" x 12"
305 x 305

*Performance Note:
The catalog data referenced can be used as a guide for selection of fire-rated diffusers. Sound and pressure drop values are increased from standard catalog values for some models and sizes due to restriction of the fire damper. For detailed selection assistance please contact your Price representative.

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