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RA 2 Flat Blade Diffuser

The RA 2 Flat Blade Diffuser is suitable for circular air supply and return air outlets in indoor spaces or halls, and can also be installed on side walls or ceilings.
  • Commodity name： RA 2 Flat Blade Diffuser

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Diffuser &Grille

Wall-mounted linear ceiling diffuser

Email:

asli@shinelong.com

Phone:

18221910198

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  • Product Description
  • Technical parameters

  •  

    Made of aluminum profiles, with surface oxidation treatment. Anodizing, electrostatic spraying, and baking paint are also available to meet decorative requirements. 
    The flat-blade diffuser features a prominent linear design, suitable for circular air inlets and outlets in indoor spaces or halls. It can also be installed on side walls or ceilings. 
    The blades are fixed, with a slanted air supply and return air type, and the blades are inclined at 15 degrees. 
    The maximum length of a single piece is 3 meters. Longer lengths can be achieved through splicing. 
    Optional accessory: G1 air volume control switch. 
    Face dimensions = Neck dimensions + 37

  • RA-2 Flat Blade Diffuser Performance Table

    Neck Area

    Air Speed (m/s)

    2

    3

    4

    5

    6

    7

    0.0181m2

    Total Pressure Loss (mmAq)

    0.4

    0.6

    0.9

    1.6

    2.2

    3.0

    Air Volume (CMH)

    130

    194

    260

    324

    389

    454

    Reach Distance (M)

    Ceiling Discharge

    0.1-0.1

    0.8-0.8

    1.6-1.6

    2.1-2.3

    2.8-3.1

    3.3-3.6

    Wall Discharge

    1.2-1.6

    1.8-2.8

    2.8-3.8

    3.3-4.8

    4.0-5.4

    4.2-6.0

    NC

    ~

    ~

    24

    30

    35

    40

    0.025m2

    Air Volume (CMH)

    180

    270

    360

    450

    540

    630

    Reach Distance (M)

    Ceiling Discharge

    0.3-0.3

    1.2-1.2

    2.0-2.2

    2.6-2.9

    3.5-3.8

    4.1-4.4

    Wall Discharge

    1.3-2.0

    2.2-3.2

    2.8-4.1

    4.0-5.1

    4.6-6.0

    5.2-6.7

    NC

    ~

    ~

    23

    29

    34

    39

    0.0324m2

    Air Volume (CMH)

    233

    350

    467

    583

    700

    816

    Reach Distance (M)

    Ceiling Discharge

    0.4-0.4

    1.5-1.5

    2.7-2.7

    3.1-3.4

    4.1-4.3

    4.8-5.1

    Wall Discharge

    1.5-2.3

    2.4-3.5

    3.5-4.5

    4.1-5.5

    5.1-6.4

    5.9-7.3

    NC

    ~

    ~

    22

    28

    33

    38

    0.0406m2

    Air Volume (CMH)

    292

    437

    583

    729

    875

    1020

    Reach Distance (M)

    Ceiling Discharge

    0.6-0.6

    1.8-2.1

    3.1-3.1

    3.5-3.8

    4.4-4.7

    5.2-5.5

    Wall Discharge

    1.8-2.6

    2.9-3.7

    4.0-5.0

    4.4-5.6

    5.6-6.9

    6.5-7.8

    NC

    ~

    ~

    23

    29

    34

    39

    0.0481m2

    Air Volume (CMH)

    346

    520

    692

    866

    1039

    1212

    Reach Distance (M)

    Ceiling Discharge

    0.9-0.9

    2.0-2.0

    3.2-3.2

    3.9-4.1

    4.8-5.2

    5.6-5.7

    Wall Discharge

    2.2-2.8

    3.1-4.1

    4.3-5.3

    4.8-6.1

    5.9-7.2

    6.8-8.4

    NC

    ~

    ~

    23

    29

    34

    39

    Note: Air outlet test length is based on 1M.
    Note: Reach distance is measured at terminal air speed of 0.5M/S~0.25M/S.
    Note: NC value column [-] indicates NC is below 20.
    Note: NC value is based on indoor absorption attenuation of 10dB and 10-12 watts.
    Note: Tested according to A.D.C. standard.
    Note: If used for return air, static pressure loss = total pressure loss * 0.75 and NC value + 5.
    Note: When the length changes, the reach distance and NC correction values are as follows:

    Effective Length (M)

    0.5

    1

    1.5

    2

    NC

    -2

    0

    +2

    +3

    Terminal Air Speed 0.5m/s

    0.8

    1

    1.1

    1.2

    Terminal Air Speed 0.25m/s

    0.9

    1

    1.15

    1.2

     

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