Theatre diffuser CCU
Lindab | we simplify construction
Dimension
Diagram showing a circular diffuser with key dimensions: ØA (outer diameter of connection), ØD₁ (inner diameter of connection), and a length of 90 mm. A small detail shows the perforated front plate.
| Size | ØA mm | ØD₁ mm | Weight kg |
|---|---|---|---|
| 100 | 140 | 100 | 0.40 |
| 125 | 160 | 125 | 0.50 |
Description
CCU is a circular displacement diffuser for installation under seats in theatres, auditoriums, etc. The diffuser is supplied with a circular connection. The diffuser can be supplied with a fixed resistance, adapted to the correct air volume and pressure, specified according to the actual conditions.
- Circular connection with Lindab Safe.
- The diffuser can be supplied with a fixed resistance at a specified pressure setting.
- The diffuser is available in other dimensions.
Maintenance
The front plate of the diffuser can be removed to enable cleaning of the internal components. The visible parts of the diffuser can be wiped with a damp cloth.
Materials and finish
- Diffuser: Galvanised steel
- Front plate: 1 mm galvanised steel
- Standard finish: Powder-coated
- Standard colour: RAL 9010 or 9003, gloss 30
The diffuser is available in other colours. Please contact Lindab's sales department for further information.
Order code
Product: CCU
Type: aaa
Size Ød: Ø100, 125
Example: CCU-125
Pressure, sound level
Graph showing pressure drop (Δp₁ in Pa) versus airflow (qv in l/s and m³/h) for CCU diffusers. It includes curves for different sizes (100, 125) and corresponding sound power levels (LWA in dB(A)) at various octave band frequencies (63 Hz to 8K Hz).
| Size | 63 | 125 | 250 | 500 | 1K | 2K | 4K | 8K |
|---|---|---|---|---|---|---|---|---|
| 100 | 10 | 1 | -2 | -3 | -3 | -11 | -19 | -29 |
| 125 | 9 | -1 | -2 | -3 | -3 | -12 | -20 | -19 |
Near zone
Graph illustrating air velocity (v in m/s) in the near zone, measured 0.5 m from the diffuser, versus airflow (qv in l/s and m³/h) for CCU diffusers. It also shows temperature difference (ΔT) values (-3, -2, -1).
The speed is measured 0.5 m from the diffuser.
