Jet Nozzle Diffuser
REF-JND
Refria Jet Nozzle Diffusers deliver targeted, high-velocity airflow over exceptional distances (up to 44.3m). Featuring a 30° adjustable ball joint for precise direction, they are ideal for large spaces like airports and theaters. Constructed from durable aluminum, they ensure efficient, long-throw air distribution for optimal comfort in commercial HVAC systems.
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Refria Jet Nozzle Diffuser
High-velocity, long-throw air distribution solution for large commercial spaces
About Refria Jet Nozzle Diffusers
The Refria jet nozzle diffuser series is engineered for large and high-ceiling areas such as airports, shopping centers, theaters, and exhibition halls. This hvac jet nozzle diffuser ensures long-throw air distribution (up to 44.3m) with precise directional control, making it ideal for spaces requiring targeted airflow over considerable distances.
125-630mm
Size Range (VJD-A)
Up to 44.3m
Max Throw Distance
30° Adjustable
Ball Joint Orientation
VJD-A Performance Data
Comprehensive performance data for selecting the right jet nozzle diffuser for your project. Data measured at air velocity of 2.5 m/s and throw velocity of 0.25 m/s.
VJD-A Selection Table
| Size(mm) | Effective area(m²) | Air volume(m³/h) | Pressure loss (Pa) | Noise dB(A) | Throw (m) |
|---|---|---|---|---|---|
| 160 | 0.005 | 100 | 18.5 | 26 | 10.8 |
| 125 | 22.8 | 30 | 13.5 | ||
| 160 | 56 | 34 | 17.4 | ||
| 200 | 82 | 39 | 22.2 | ||
| 250 | 116 | 43 | 27.3 | ||
| 200 | 0.009 | 160 | 10 | 30 | 12.7 |
| 200 | 21 | 33 | 16 | ||
| 250 | 54 | 38 | 20 | ||
| 320 | 82 | 41 | 25.7 | ||
| 400 | 116 | 45 | 32.2 | ||
| 250 | 0.0145 | 250 | 11 | 29 | 12.9 |
| 320 | 22 | 34 | 16.9 | ||
| 400 | 55 | 39 | 25.2 | ||
| 500 | 81 | 42 | 31.5 | ||
| 630 | 116 | 46 | 37.5 | ||
| 315 | 0.023 | 400 | 12.8 | 26 | 16 |
| 500 | 21 | 34 | 20 | ||
| 630 | 46 | 38 | 25 | ||
| 800 | 68 | 42 | 30.2 | ||
| 1000 | 94 | 46 | 37 |
VJD-B Performance Data
Extended size range and performance data for the VJD-B hvac jet nozzle diffuser. Data measured at air velocity of 2.5 m/s and throw velocity of 0.25 m/s.
VJD-B Selection Table (Partial)
| Size(mm) | Effective area(m²) | Air volume(m³/h) | Pressure loss (Pa) | Noise dB(A) | Throw (m) |
|---|---|---|---|---|---|
| 400 | 0.0415 | 800 | 17 | 36 | 22.2 |
| 1000 | 31 | 39 | 28.4 | ||
| 1250 | 58 | 43 | 34 | ||
| 1600 | 80 | 46 | 40 | ||
| 500 | 0.0642 | 1250 | 12 | 36 | 22.8 |
| 1600 | 28.8 | 41 | 28.9 | ||
| 2000 | 51 | 44 | 34.8 | ||
| 2500 | 70 | 50 | 41.2 | ||
| 630 | 0.127 | 2500 | 12.5 | 41 | 21.8 |
| 3200 | 29.4 | 43 | 27.6 | ||
| 4000 | 52 | 46 | 35.4 | ||
| 5000 | 78 | 49 | 44.3 |
Key Advantages of Our Jet Nozzle Diffuser
Designed for high-performance air distribution in demanding environments, our hvac jet nozzle diffuser provides exceptional throw distances and directional control.
Long throw distance up to 44.3 meters for large space coverage
30° adjustable ball joint for precise air direction orientation
Ideal for large commercial spaces: airports, shopping centers, theaters
Manual or motorized control options for flexible operation
Compatible with circular duct systems from 200mm to 1000mm
Ceiling, wall, or duct mounting options for versatile installation
Materials & Accessories
Material Construction
Constructed from high-quality aluminum sheet for durability and lightweight performance, ensuring long-term reliability of your jet nozzle diffuser.
Available Accessories
Dampers (butterfly damper in plastic or steel with manual control; radial-shape damper with screw control) for precise airflow regulation.
Finishing Options
Standard white powder coating (RAL9016, RAL9010), or customized colors to match your architectural design requirements.
Why Choose Refria Jet Nozzle Diffusers?
Exceptional Throw Performance
Engineered for long-distance air delivery (25m+), making this hvac jet nozzle diffuser ideal for high-ceiling and large-volume spaces.
Precise Directional Control
30° adjustable ball joint allows accurate air stream orientation for targeted cooling or heating distribution.
Commercial-Grade Durability
Constructed from robust aluminum with premium finishes, designed for long-term performance in demanding commercial environments.
Flexible Installation Options
Mount on ceilings, walls, or directly into circular ductwork, providing versatile installation solutions for any project layout.
Comprehensive Size Range
Available in sizes from 125mm to 630mm (VJD-A) and up to 630mm (VJD-B) to match various airflow requirements and duct diameters.
Optimized Airflow Performance
Engineered for efficient air distribution with controlled pressure loss and noise levels, ensuring comfortable environments even at high velocities.
Important Notes
Performance data based on standard test conditions (air velocity 2.5 m/s, throw velocity 0.25 m/s).
Specifications and dimensions are subject to change without prior notice.
For optimal performance of your jet nozzle diffuser, ensure proper selection and installation by a qualified HVAC professional.
Specifications and dimensions are subject to change without prior notice.
For optimal performance of your jet nozzle diffuser, ensure proper selection and installation by a qualified HVAC professional.
For more questions please
contact us
+86 13450754068
sharon.pan@refria.com
1112 Tianji International Building , No.5 Renchang Road , Beijiao Town , Shunde District , Foshan City , Guangdong Province , China
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