Rectangular Acoustic Silencer PVC-SLC

PVC-SLC

Rectangular Acoustic Silencer PVC-SLC

Rectangular PVC-SLC duct acoustic silencers are designed for effective noise attenuation in ventilation and air conditioning systems. Their primary application is installation between the fan and the supply or exhaust duct, as well as before air diffusers, ensuring acoustic comfort in rooms. The construction consists of a durable plastic casing and internal L-type absorptive baffles, which effectively reduce noise in the low and medium frequency ranges. The sound-absorbing insert, based on non-combustible mineral wool boards, is protected by a special, abrasion-resistant fabric, guaranteeing long-lasting performance and safety.

Key Features

Effective noise attenuation in ventilation and air conditioning systems.
Durable plastic construction (PVC, PP, PE, PVDF) for longevity.
Sound-absorbing insert made of non-combustible mineral wool, covered with a glass fiber veil.
Insert surface protected by an abrasion-resistant fabric.
Optimized for air flow velocities up to 20 m/s.
L-type absorptive baffles, effective in low and medium frequencies.
Easy installation in rectangular ventilation ducts with vertically positioned baffles.
Various casing materials available for specific applications (e.g., PPs-SLC, PP-EL-s-SLC).

Technical Data

Parameter	Value
Baffle Type	Absorptive (L)
Casing Material	Polyvinyl chloride (PVC), Polypropylene (PP, PPs, PP-EL-s), Polyethylene (PE), PVDF material
Sound-absorbing Insert Material	Non-combustible mineral wool with glass fiber veil
Max. Air Flow Velocity	20 m/s
Average Weighted Sound Power Level (example)	From 36.8 dB(A) to 47.3 dB(A) (depending on configuration)

Acoustic Attenuation (example values for 2 central + 2 side baffles)

Octave Center Frequency [Hz]	Measured Value [dB]	Calculated Value [dB]
63	2.7	2.9
125	4.0	4.1
250	12.4	10.9
500	24.2	22.3
1000	34.5	34.9
2000	30.1	29.1
4000	19.3	20.2
8000	18.3	18.4