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51EC Eggcrate Return Grilles
The Series 51EC Eggcrate Return Grilles are high-capacity return or exhaust outlets with the highest free area available (approximately 90%). They therefore have the lowest pressure drop and sound levels available for a return air inlet.
The aluminium cube cores are constructed of thin, interlocked aluminium strips assembled in a square grid fashion and match in appearance the grid louvres on parabolic light fixtures. They are most suitable for use as ceiling returns. They are not recommended for low-side wall applications due to potential core damage.
The 51EC Series are available with various frame/border styles to suit both lay-in type and hard ceilings.
51EC Eggcrate Return Grilles Product Brochure
For more information, please contact our specialists.
Features
- The optional opposed blade damper has a screwdriver slot operator for adjustment through the face of the grille.
- Screw holes in the frame are countersunk for a neat appearance (standard). painted to match the grille, are supplied.
- Concealed mountings are available (option).
Tech Specs
- Optional opposed blade damper has a screwdriver slot operator for adjustment through the face of the grille.
- Screw holes in the frame are countersunk for a neat appearance (standard) and painted to match the grille supplied.
- Concealed mountings are available (option).
- Model 51EC Type S has a 30mm face border with a 25mm overlap margin, supplied with countersunk screw holes and mounting screws.
- Type NF narrow frame with 25mm face border optional. Concealed mounting is optional.
- Aluminium construction: extruded aluminium frames mechanically interlocked with reinforced mitered corners.
- Grid cores are aluminium. Standard core size is 13 x 13 x 13mm with mechanically locked-in margins, or available as core only.
- Integral dampers, aluminium opposed blade design with a screwdriver slot operator.
Dimensions
Standard sizes are available in most models from 100mm x 100mm to 1200mm x 1200mm in single-section construction.
Other sizes, including multiple-section assemblies, are available on request but are subject to manufacturing limitations. For more information, please contact our specialists.