RF - Venkonair

Round ceiling diffuser for supply or extract air with concentric round curved blades (anemostat). Made by aluminium painted electrostatically in RAL color. Secret fixing with screws in the neck of the diffuser. The air is supplied in the same way to all directions (360o). For use in cooling cases or in heating if the installation height is small.

Also is available in the following executions:

RF-A: Fixing with visible screws in the front frame.

RF-D: With butterfly type damper.

RF-A-D: Fixing with visible screws in the front frame and butterfly type damper.

RF-V: With blades in “V” shape.

RF-A-V: Fixing with visible screws in the front frame and blades in “V” shape.

RF-D-V: With butterfly type damper and blades in “V” shape.

RF-A-D-V: Fixing with visible screws in the front frame, butterfly type damper and blades in “V” shape.

RF-S: Secret fixing with central screw.

RF-D-S: Secret fixing with central screw and butterfly type damper.

RF-SPR: Installed in metal plate with external dimensions 595Χ595mm painted in the same RAL color with the diffuser.

RF-D-SPR: With butterfly type damper and Installed in metal plate with external dimensions 595Χ595mm painted in the same RAL color with the diffuser.

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RF
RF 595mm x595mm

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Settings	RF remove	SLT remove	DA remove	D remove	FDMA remove	O remove
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Description	RF Round ceiling diffuser for supply or extract air with concentric round curved blades (anemostat). Made by aluminium painted electrostatically in RAL color. Secret fixing with screws in the neck of the diffuser. The air is supplied in the same way to all directions (360o). For use in cooling cases or in heating if the installation height is small.	SLT Linear slot diffuser for use in air supply or return applications. For installation in ceilings or walls. Τhe main blade adjusts the direction of the supply air to the right, vertical or to the left. Also two additional plastic blades at each side of the opening control the air direction	DA Multiple leaf air volume control damper for installation in square or rectangular air ducts. The frame is made by galvanized sheet steel. With simultaneously, opposite rotated, aerodynamically shaped blades made by anodized aluminium. Every blade is rotated by two plastic gears. The plastic gears are inside the frame to avoid pollution. The blades in the length they have seals in rubber for better air-tightness. The blades angle is manually regulated. Air leakage when closed: CLASS 2 according to the standard ΕΝ 1751:1998. The connection of two dampers DA (in same or opposite rotation) is possible by using connection elements. The blades are parallel to the first mentioned dimension.	D Multiple leaf air volume control damper for installation in the majority of grilles or diffusers. Made by aluminium. With simultaneously opposite rotated blades. The regulation is possible from the front of the grille/diffuser with screwdriver or a handle.	FDMA FDMA – The Damper in the HVAC equipment duct that prevents the spread of fire and combustion products from one fire segment to another by shutting off the airflow at the fixture points.	O Ceiling diffuser, square or rectangular, with fixed blades in angle 45o (anemostat), for supply or extract air. With one (O1), two (O2), three (O3) or four (O4) way throw pattern. Accessible. Made by anodized aluminium. Electrostatic paint in RAL color is possible. For use in cooling cases or in heating if the installation height is small.
Content	Also is available in the following executions: RF-A: Fixing with visible screws in the front frame. RF-D: With butterfly type damper. RF-A-D: Fixing with visible screws in the front frame and butterfly type damper. RF-V: With blades in “V” shape. RF-A-V: Fixing with visible screws in the front frame and blades in “V” shape. RF-D-V: With butterfly type damper and blades in “V” shape. RF-A-D-V: Fixing with visible screws in the front frame, butterfly type damper and blades in “V” shape. RF-S: Secret fixing with central screw. RF-D-S: Secret fixing with central screw and butterfly type damper. RF-SPR: Installed in metal plate with external dimensions 595Χ595mm painted in the same RAL color with the diffuser. RF-D-SPR: With butterfly type damper and Installed in metal plate with external dimensions 595Χ595mm painted in the same RAL color with the diffuser. DOWNLOADS RF RF 595mm x595mm	Also is available in the following executions: SLT-N: Without external flange. For secret fixing in gypsum board with thickness 12 mm cutted in 45o corner. SLT-C: With narrow external flange, for installation in gypsum board with thickness different of 12 mm. SLT-C-P:With narrow external flange, for installation in gypsum board with thickness 12 mm. SLT-X: Without main blade. (for return air). SLT-SX: With perforated equalising grid. DOWNLOADS SLT	Also is available in the following executions: DA-ON/OFF 220V: Adjustable with electric actuator on/off 220V. DA-ANALOGUE 24V: Adjustable with electric actuator analogue 24V. DOWNLOADS DA	Also is available in the following executions: D-ON/OFF 220V: Adjustable with electric actuator on/off 220V. DOWNLOADS D	Characteristics Dampers from 180 × 180 mm to 1 600 × 1 000 mm CE certified acc. to EN 15650 Tested in accordance with EN 1366-2 Classified acc. to EN 13501-3+A1 Fire resistance up to EIS 120 External Casing leakage class C / Internal leakage class 3 acc. to EN 1751 Corrosion resistant acc. to EN 15650 Cycling test in class C 10 000 acc. to EN 15650 Damper actuating mechanical or electrical Maximum air speed through opened damper of 12 m/s and pressure difference 1200 Pa Can be used in explosion-hazard environments	Also is available in the following executions: O1/O2/O3/O4-D: With aluminium made, multiple leaf, air volume control damper with simultaneously opposite rotated blades. O1/O2/O3/O4-SX: With equalizing grid, made by aluminium, cosnsisted by one row of adjustable blades. O1/O2/O3/O4-D-SX: With aluminium made, multiple leaf, air volume control damper with simultaneously opposite rotated blades and equalizing grid, made by aluminium, consisted by one row of adjustable blades. All the above mentioned types of diffusers is possible to be installed in metal plate with external dimensions 595X595mm (-SPQ). In this case the plate and the diffuser are painted electrostatically in RAL color. This is possible for the nominal diffuser dimensions 150Χ150, 200Χ200, 230Χ230, 250Χ250, 300Χ300, 350Χ350, 380Χ380, 400Χ400 and 450Χ450. In this case the diffuser is not accesible. DOWNLOADS O O 595mm x595mm
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