SDP Plenum Box SDCH Swirl Diffusers

Introduction
The proprietary plenum boxes for our SDCH swirl diffusers are designed to guarantee a good mixing of the air prior to diffusion through the terminals. Available with Side Entry connections matching the diffuser neck (nominal size), these can be fitted with Spigot flap dampers FD, cord- or quadrant-operated, as well as 6mm acoustic lining (optional) reaction to fire class C-s3-d0 to EN 13501-1: 2007 to avoid noise generation.
The Supply air plenum box includes an internal baffle plate to homogenise the airflow over the swirl area.

Product Description
SDP Side Entry plenum box to suit SDCH Diffusers
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
BLACK Plenum painted black to prevent through vision (optional)

Features
Galavnised Steel, stitch fixed
Side entry spigot with optional airflow control damper
Oblong holes on top plate for easy drop rod installation
Internal baffle plate for Supply air diffuser

Finish
SDP Galvanised sheet steel