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ECG: Egg Crate Grille

ECG: Egg Crate Grille: The ECG series egg-crate grille return air vents offer multiple installation options, a robust and durable structure, and feature a thick-gauge aluminum grille core, optional extruded aluminum edging and frame, and a durable powder coating. A variety of aluminum grille cores are available, with varying grille spacing and depth to meet diverse architectural and performance requirements. The product is tested according to ANSI/ASHRAE Standard 70-06, demonstrating excellent airflow performance and a low noise level (NC). Please contact us for all certifications and test reports.

Standard Construction

  • Minimum Size: 100 mm * 100 mm
  • Maximum Size (single piece): 1220 mm * 1220 mm
  • Oversized construction available with muillions and/or duct channels
  • Total Height: 50 mm

Construction Options

  • Fixed Core (Figure 1)
  • Hinged Type Removable Core (Figures 2 and 3)
  • Opposed Blade Damper (+D)
  • Filter frame (+FF)
  • Insect screen (+IS)
  • Square to round adaptor (+SR)

How to order

  • Ex. Aluminum matte white egg-shaped nozzle - 25mm edge - with OBD - meter 400*300
  • Code: ECG/25/+D/BASE/400*300/Matt White

32 mm Frame (32 sides)
25 mm Frame (25 sides)
20 mm Frame (20 sides)
Other frame sizes (contact us)

FRAME

Fixed Core (obstruction)
Hinged Type

CORE

No additional accessories required
Opposed Blade Damper (O.B.D.)
Filter Frame (+FF)
Insect Screen (+IS)
Square to Round Adaptor (+SR)

ACCESSORIES

Border Calculation Formula

    border Neck Tianhua left a roar Wind throat Neck height
    20mm B-24mm B-14mm B-19mm 50mm
    25mm B-36mm B-26mm B-31mm 50mm
    32mm B-50mm B-40mm B-45mm 50mm
    • B = Base Size (Meter)
    • Assuming a 25mm edge is chosen, the face value is 300mm.
    • Neck gauge = 264mm
    • The ceiling height is 274mm.
    • Air vent hole = 269mm

Other borders/methods

    • A frame thickness of less than 20mm is not recommended.
    • Narrower bezels will have less impact on appearance and rigidity, thus reducing the risk of installation distortion.
    • Narrower frames require more precise ceiling openings.

Frequently Asked Questions

    • Can the neck be thinned?
    • No, the neck depth of double-leafed plants must be at least 50mm. If it is less than 50mm, consider using single-leafed plants (ASE), which only need to be 25~32mm.

If you need any assistance, you can consult our 24-hour online text customer service / customer service mailbox , and we will provide you with service at any time.

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