top of page

DSD: Stainless Steel Double Deflection Grille

The Stainless Steel Double Deflection Grille features double-layered blades arranged in a cross shape, allowing for individual adjustment of the airflow angle. A black OBD (Figure 3) control valve on the back allows for airflow regulation. Commonly used in public swimming pools, kitchens, restaurants, shopping malls, parking lots, and restrooms. 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

  • Grade 304 or 316 SS
  • Short leaves in front, long leaves behind (ASD-V) (Figure 1)
  • Longer leaves in front, shorter leaves behind (ASD-H) (Figures 2 and 4)
  • Opposed Blade Damper (+D)
  • Filter frame (+FF)
  • Insect screen (+IS)
  • Square to round adaptor (+SR)

How to order

  • Example: Stainless steel - sandblasted finish - double-blade - 25mm edge - longer blade in front - OBD included - face meter 800*300
  • Code: DSD-H/25/+D/BASE/800*300/Satin Finish
32 mm Frame (32 sides)
25 mm Frame (25 sides)
20 mm Frame (20 sides)
Other borders

FRAME

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

ACCESSORIES

Shorter leaves in front (ASD-V)
Longer leaves in front (ASD-H)

BLADE POSITION (RECTANGULAR)

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

    1. 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.

bottom of page