Blower plenum PB Series

The plenum boxes for Grilles constitute an easy and cost-effective way to connect the grilles back to ductwork. Available with Side or Top Entry connections to customer-specific diameter/shape, these can be fitted with Spigot flap dampers GPB, cord- or quadrant-operated, as well as 6mm acoustic lining (optional) reaction to fire class Cs3-d0 to EN 13501-1: 2007 to avoid noise generation. An internal baffle plate can be fitted to the plenum box to help evenly distribute the airflow over the whole surface of the grille if used for Supply air. GPB : Plenum box for Grilles NRG : Neck Reducer SE :Side Entry spigot TE :Top Entry spigot CC :Circular connection RC :Rectangular connection FO :Flat Oval connection FDC :Cord-operated Flap damper (optional) FDQ :Quadrant-operated Flap damper (optional) LINED :6mm acoustic lining (optional) reaction to fire class C-s3-d0 to EN 13501-1: 2007 BFL :Internal perforated baffle plate (optional) BLACK :Plenum painted black to prevent through vision (optional) *Galavnised steel, stitch fixed *Available in High-Line or Low-Line to accommodate larger spigot sizes *1 to 4 connections – Circular, Rectangular or Flat Oval (reduced plenum height) *Side or Top entry spigots with optional airflow control damper *Oblong holes on top plate for easy drop rod installation *Internal baffle plate for optimum air distribution (optional) Finish PBG / NRG : Galvanised sheet steel Dimensions Length : Extract Grille length Width : Extract Grille width Height : SE – Spigot diameter or height + 100mm as standard TE – as specified by customer (200mm minimum recommended)