Silencers

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Manufacturer: ALNOR Systemy Wentylacji Sp. z o.o.

Designation of construction product type:  

Silencers made of galvanized steel: SLC, SRC, SPC.
Silencers made of corrosion-resistant steel: SLK, SRK, SPK, SLM, SRM, SPM.
Silencers made of aluminium: SLA, SRA, SPA.

Intended use(s): Intended to be used for noise suppression in ventilation and air conditioning systems, in residential buildings, collective residence and public utility buildings.

Polish product standard: PN-EN ISO 7235:2009

Manufacturer: ALNOR Systemy Wentylacji Sp. z o.o.

Designation of construction product type:  

Silencers made of galvanized steel: SIL, SIRL, SIBL, SIBRL, SIBOL, SIBROL, BSIL.
Silencers made of corrosion-resistant steel: SIL-K, SIRL-K, SIBL-K, SIBRL-K, SIBOL-K, SIBROL-K, BSIL-K.
Silencers made of aluminium: SIL-A, SIRL-A, SIBL-A, SIBRL-A, SIBOL-A, SIBROL-A, BSIL-A.

Intended use(s): Intended to be used for noise suppression in ventilation and air conditioning systems, in residential buildings, collective residence and public utility buildings.

Polish product standard: PN-EN ISO 7235:2009, PN-EN 12237:2005, PN-EN 15727:2010, PN-EN 13501-1:2019

Manufacturer: ALNOR Systemy Wentylacji Sp. z o.o.

Designation of construction product type:  

Flexible silencer SLEFD, SLEAL, SLEFL, SLESD, SLEAF, SLEFL-P, SLEST with nominal diameters: 80 - 315 mm.

Intended use(s): Intended to be used for noise suppression in ventilation and air conditioning systems, in residential buildings, collective residence and public utility buildings.

Polish product standard: PN-EN ISO 7235:2009

Manufacturer: ALNOR Systemy Wentylacji Sp. z o.o.

Designation of construction product type:  

Silencers made of galvanized steel: SQLL-25, SQLL-50, SQQL-30, SQQL-B-30.
Silencers made of corrosion-resistant steel: SQLL-25-K(-316L), SQLL-50-K(-316L), SQQL-30-K(-316L), SQQL-B-30-K(-316L).
Silencers made of aluminium: SQLL-25-A, SQLL-50-A, SQQL-30-A, SQQL-B-30-A.

Intended use(s): Intended to be used for noise suppression in ventilation and air conditioning systems, in residential buildings, collective residence and public utility buildings.

Polish product standard: PN-EN ISO 7235:2009

Certification body: TÜV Rheinland Group

Reference documents: EN 1506:2007 and EN 12237:2005

Application: Designed for use in ventilation systems in apartment buildings, industrial plants and public utility objects including hospitals.

Products: Circular and rectangular silencers (sound attenuators)

Certification body: Fraunhofer Institute for Building Physics IBP

Test: Insertion loss, sound power level and pressure loss measurements on the splitter silencers

Reference document: DIN EN ISO 7235

Products: SLC Rectangular sound attenuators

Hygienic Certificate No: B.BK.60112.0182.2024 valid till 2029-07-26

Certification body: National Institute of Public Health - National Institute of Hygiene

Application: Designed for use in ventilation systems in apartment buildings, public utility objects, hospitals and industrial plants

Products CODE:  Round and rectangular silencers (attenuators), i.e. SIL, SIBL, SIBOL, SIRL, SIBRL, SIBROL, SIL-GL, SI-GL, SQLL-25, SQLL-50, SQQL-30, SQL-B-30, SQQL-CR, SQQL-CRQ, BSIL, SLC, SRC, SPC, SIL-K, SLM.

Hygienic Certificate Number: B-BK-60212-0018-21 valid till 2026-03-19

Certification body: National Institute of Public Health - National Institute of Hygiene

Application: Designed for use in ventilation and air-conditioning systems in apartment buildings, industrial plants, and public utility objects including hospitals.

Products: Flexible sound attenuators SLEFL, SLEFL-P, SLEAL, SLESD, SLEAF, SLEFD and SLEST

Certification body:  Rakennustieto Oy

Products: duct silencers