. Catalog Diffusers Slot diffusers PURELINE35


Wester_m 15.03.2024


An elegant slot diffuser ideally integrated into a suspended ceiling, creating a harmonious interior design


High level of comfort thanks to lower sound power and improved reduction of the temperature difference between supply and extract air, as well as reduced supply air velocity
Increased energy efficiency due to reduced pressure losses
Easy and quick installation – tool-free front panel mounting
New applications – also as air curtains for counters
High flexibility due to wide range of standard options

Operating principle

Slot diffusers for ventilation systems or

air conditioners direct the supply air into the room horizontally, obliquely or vertically.

The supply jet is characterized by high

ejection of air in the room and therefore its speed, as well as the temperature difference between the supply air and the air in the room, quickly decreases.

As a result of the described air distribution in the corresponding living area, a mixed air stream with low turbulence is created, providing a comfortable microclimate.

Slot diffusers of the PURELINE35 series are equipped at the factory with manual adjustment devices for changing the direction of the supply jet.

The ability to change the direction of the air stream allows you to adapt the air flow to specific conditions.

The supply of horizontal supply jets can be performed in one or alternately in two directions.

The heating mode is possible when supplying vertical or inclined supply jets.

The permissible temperature difference between the supply air and the room air can be from –10 to +10 K.

A damper (optional) simplifies air flow balancing.

To create a uniform, elegant room design, the PURELINE35 series diffusers can also be used for air extraction.

Nominal length 600 – 1950 mm, in 150 mm increments

Number of slots 1, 2, 3 or 4

Neck extension 0, 30, 55, 80, 105, 129

Minimum air flow at ∆tz = -10 K 7 l/s or 24 m³/h

Maximum air flow at LWA ≅ 50 dB(A) 225 l/s or 808 m³/h

Permissible temperature difference between supply air and indoor air -10 to +10K

① Face plate or front rail, 1, 2, 3 or 4-slot
②Adjustable air control element
③ Screw fixing
⑥ Neck
⑦ Plenum box
⑧ Suspension lug
⑨ Spigot

④ End plate
⑤ End angle
⑩Lip seal
⑪ Damper blade for volume flow rate balancing

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