RFD SERIES
Round and square ceiling swirl diffusers
Standard sizes 125, 160, 200, 250, 315, 400
Air flow level 4 – 330 l/s or 14 – 1188 m³/h
The front panel can be made of galvanized sheet steel and powder coated, or aluminum (depending on the type of construction)
For supply and extract air
For systems with variable and constant air flow
For all types of ceilings
If equipped with an air distribution nozzle, it is ideal for free-floating air cooling
Rapid equalization of temperatures and reduction of air flow speed is achieved due to the high level of ejection
Diffusers can provide 35-fold air exchange when arranged in a row with a minimum pitch of 0.9 m (from center to center)
Ideal for comfort zones
Description
Ceiling swirl diffusers in air conditioning systems create a vortex supply of air for good mixing with the room air. The air flow obtained at the outlet of the diffuser allows one to achieve high ejection values, thereby quickly reducing the flow rate and leveling out the temperature difference between the supply air and the air in the room. Ceiling swirl diffusers are used for high air flows. As a result, there is a mixing of air flows in comfort zones, with a good distribution of air jets throughout the room and a small turbulent vortex in the area where people are present.
Ceiling swirl diffusers of the RFD series have fixed guide vanes. Horizontal air supply is carried out in all directions. The temperature difference between the supply air and the room can range from –12 to +10 K.
Flap blade (optional) to balance air flow simplifies operation. The metering point and damper blade with flexible rod (optional) allow you to adjust the air flow when the front panel is installed.
To create an attractive, holistic room design, diffusers from the RFD series can also be used for exhaust ventilation.
Additional equipment and accessories
The diffuser front panel can be painted in RAL CLASSIC colors
Horizontal or vertical duct connection
Plenum box with measuring point and valve flap with flexible rod
Low plenum
Standard sizes 125, 160, 200, 250, 315, 400 mm
Min. air flow, where ΔtZ = -6 K 4 – 36 l/s or 14 – 130 m³/h
Max. air flow level, at LWA ≅ 50 dB(A) 22 – 330 l/s or 79 – 1188 m³/h
Temperature difference between supply air and room –12 to +10K
Application
RFD series ceiling swirl diffusers are suitable for supply or exhaust ventilation to create comfortable indoor conditions
An attractive design element for architects and clients with high aesthetic requirements
Horizontal vortex air supply for mixing air flows
An effective vortex flow creates a high ejection coefficient and, as a result, rapid equalization of the temperature of the jet and a decrease in its speed (for supply ventilation)
For systems with variable and constant air flow
Temperature difference between supply air and room from –12 to +10 K
For rooms with ceiling heights up to 4 m (lower edge of suspended ceiling)
For all types of ceilings
Also suitable for free hanging with extended lip and air distribution nozzle (for supply ventilation)
Characteristics
Low sound power level, ideal for comfort zones
Fixed guide vanes
For all types of ceilings
Horizontal or vertical duct connection
Diffusers can provide 35-fold air exchange when arranged in a row with a minimum pitch of 0.9 m (from center to center)
① Diffuser front panel
② Center connection screw
③ Static chamber
④ Jumper
⑤ Hanging bracket
⑥ Connection
Optional
⑦ Seal
⑧ Measuring point
⑨ Flap valve for balancing air flow
⑩ Green cable for closing the damper blade
⑪White cable for opening the valve door
⑫ Measuring tube
⑬ Plenum box type label