Circular Ceiling Diffusers - Air Diffusion

Models OD-1 and OD-2 Circular Ceiling DiffusersCircular Ceiling DiffusersAccessoriesDeflector and single flapcontrol damper with centralteleflex screw operation,type E2. Butterfly damperhaving individual bladeoperation, Type J2.Butterfly control damperhaving uniform bladeoperation with centrallylocated screw, Type J3.Spigot collar for installationusing a cross member forcentral fixing type L2.Model OD-1Model OD-2DescriptionModels OD-1 and OD-2circular ceiling diffusers arecapable of handling greater airvolumes and largetemperature differentials dueto the high induction rates(mixing of supply and roomair) with relatively low noiselevels.Model OD-1 is a fixedhorizontal air pattern diffuserhaving flush inner cones.Model OD-2 is a fixedhorizontal air pattern diffuserwith projecting inner cones.Optional butterfly and controldeflectors are available.Both Model types may beused for supply or extractsystems and are suitable forinstallation in mostcommercial and residentialapplications.MaterialSteel as standard.ConstructionFabricated from pressed steelhaving an outer flange conicalsection with inner coneassembly mechanically joinedby rods.Standard InstallationMethodCentral screw fixing located indiffuser face using crossbarsecured into duct abovediffuser neck (Type 7).Alternatively by using threescrews for a peripheral fixingthrough the diffuser facedirectly into the ceiling (Type X).Cross bar fixing Type 7Installation OptionsWhen using a damper ordeflector unit, installationshould be either by centralscrew fixing through thediffuser face into the damperwith the damper fixed inposition by angles (Type 8).Alternatively by using threescrews for a peripheral fixingthrough the diffuser facedirectly into the ceiling(Type V) with the damperalready secured into the duct.FinishStandard is White polyesterpowder to RAL 9010 (30%gloss) alternative finishes toRAL colours also available asan optional extra.Standard Model TypesModel OD-1; Fixed horizontalair pattern circular diffuserwith inner cones flush withouter flange.Model OD-2; Fixed horizontalair pattern circular diffuserwith inner cones projectingbelow outer flange.Deflector and Flap control damper Type E2Butterfly and Deflector control damper Type J3Butterfly damper Type J2Spigot connection forinstallation incorporating across member for centralfixing Type L24 www.air-diffusion.co.uk