Page 37 - AIR HANDLING UNITS

AIR Handling UNITS

NOISE SUPPRESSORS` SECTION - SD

In order to reduce the noise level emitted by the central station into the ducts or to the
environment (in case of lowering the noise level in the air stream exhausted directly to the
environment), the noise suppressors are (absorption suppressors) designed to ensure
the reduction of this parameter within the range of audible frequencies above 250 Hz.
For central stations running intermittently, the suppressors which reduce the noise within the
range of 63 to 250 Hz are used. They are the absorption and resonance suppressors, with part
of the sound-absorbing insert on both sides of so-called alotted lever covers with resonant
sheet, solid or perforated.
The slotted levers of suppressors are made in a housing of zinc coated sheet or stainless sheet,
and can be optionally equipped with air ?ow guide device at the inlet and at the outlet of
the suppressor. The suppressing insert is made of non-combustible materials, abrasion-resisting
at air ?ow velocity up to 20 m/s.

The noise suppressors and their version are selected individually to ful?l speci?c requirements.
Hygienic versions of the suppressors are made of materials which enable washing, and their
design allows for easy disassembly of the suppressor.

fon +48(0)52 569 8000 kmw.pl
36