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RD

Rotary diffuser RD

Rotary diffusers are used in supply and exhaust ventilation and air conditioning systems. They are designed for installation in ceiling or wall openings in rooms of various types and purposes.

CeilingWall

1How much air are we supplying?

2Size

3Options

Fixing method

4RAL colour

Performance

Airflow simulationjet model
Occupied zone · 1.8 m0.47 m/s near peopleCeiling 3.8 m
Air velocity, m/s0.000.250.500.751.00+0.25 m/s isoline — comfort limit

Section through the room at the diffuser. Velocity and temperature on the jet axis come from the calculation verified against the manufacturer's selection software; the surrounding field is an engineering model of the jet and return flow, not a full CFD analysis. Lines show air particle paths.

Free area
0.0070m²
Outlet velocity
5.95m/s
too high
In occupied zone
0.47m/s
acceptable
Pressure drop
28Pa
good

Temperature difference in the occupied zone ≈ 0.70 K — comfortable.

• Outlet velocity is too high — it will be noisy. Choose a larger size or use several diffusers.

Order code

RD (RAL 9016) 100x100

€6.99

€6.99 × 1 pcs

Manufacturing: 8 working days

Description and manufacturing

Purpose

Rotary diffusers are used in supply and exhaust ventilation and air conditioning systems. They are designed for installation in ceiling or wall openings in rooms of various types and purposes.

Design and materials

The grilles are made of high-quality aluminium profiles in the form of a frame with pairs of mutually perpendicular movable blades. By changing the position of the blades (the angle of each is set individually and adjusted independently), the direction of the airflow can be corrected.

The diffuser can be fixed either with springs (standard, concealed fixing) or with a screw connection (countersunk mounting holes on the front flange). The profiles are coated with heat-resistant powder paint, which provides reliable protection against adverse environmental factors and prevents premature wear of the product. The standard colour is white, but any other RAL colour is available at the Customer's request.

Manufacturing

Nominal sizes LxH in 5 mm increments.

Minimum size – 100x100h

Maximum size – 1000x1000h

Ordering example and installation

RD (RAL9016) 300x300h – fixing with mounting springs, white.

RD* (RAL9016) 300x300h – screw fixing (mounting holes on the front face of the grille frame), white.

Options

  • available with a plenum box made of galvanised steel;
  • available with a bird and rodent protection mesh (+S);
  • available with a manually adjustable damper (+D).

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