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PERFORATED PLATE DIFFUSERS (PPD) are suitable
for supply or return air in ceiling applications. They are available with 2, 3 or 4 way
horizontal throw patterns and can be provided with either square or circular necks. A
purpose made diffuser is available for use in modular ceiling systems (PPD/CP). See Perforated Plate Diffuser Options.
PPD diffusers have an extruded aluminium frame with integral flange, the mitred
corners being fully welded and linished. The face plate is manufactured from 20 swg mild
steel perforated plate (50% free area).
Finally they are stove enamelled white or silver 'Analum' as standard. Other
finishes are available. |
