Single Deflection Grilles

  • Single Deflection Grille
  • Single Deflection Grille closed

Single Deflection Grilles

SG1 / SR1 Series

Idealair Series SG 1/SR 1 single deflection supply grilles are suitable for duct, ceiling and sidewall applications in most commercial projects. Aerofoil grille vanes can be individually adjusted allowing the air pattern to be set on site. When fitted with an opposed blade damper at the rear they become series SR 1 with the damper being adjustable through the front face of the grille.

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Frames and vanes are manufactured from 6063 T6 extruded aluminium. Frame mitres are mechanically jointed and tig welded on the rear and neck for added strength and rigidity preventing any distortion of the hairline mitres. Grille vanes are set at 20mm centres and mounted horizontally in the frame as standard or vertically if requested.


MF – Mill Finish (Standard)
PPC RAL – Stock RAL colours available to order

idealair colour options

Grilles are supplied with countersunk holes as standard. Alternative fixing methods are available on request.

N – No fixing provided (fixing by others)
S – Countersunk Flange Holes

Countersink flange holes

– Rear Fixing Lug

Rear fixing lug

*Diagrams for reference purposes only

Size Range

100 x 100mm to 1000 x 1000mm nominal size in 50mm increments. Special sizes and multiple units are available on a made to order basis.
Please enquire for details.


Please specify the accessories on your order.

Opposed blade damper (OBD)
Neck reducers
Plenum boxes