Silencers. ALNOR systemy wentylacji. Download Wentyle Download AlnorCAM B2B ordering

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1 Download Wentyle Download AlnorCAM B2B ordering 410 ANOR reserves the right to modify technical specifications in line with the policy of continuous product improvement. ANOR systemy wentylacji

2 System description System description Together with matching fittings and ducts, silencers provide a complete system for building ventilation ductwork. The wide range of various types and versions allow adapting silencers to virtually any design requirements. Diameter sizes of all round silencers are compatible with SPIRA system round fittings. Square silencer need to be size-adjusted to the dimensions of the existing ductwork and fittings installed. Other sizes are shown in the tables and specifications in the individual Product Data Sheets. Installation instructions Round silencers are fastened with self-drilling screws or blind rivets, either of which are driven through the ductwork length overlapping the connection flange inside. All parts with a diameter over 315 mm have female joints and require two additional male couplings for connecting with the ductwork. Square silencers are fastened with screws at steel corner straps and with a KQ G-clamp which fastens two flange frames. Application advantages are intended to reduce noise levels generated in the ductwork by fans and AHUs and transmitted through the ductwork from the ventilated rooms. The flexible design and compatibility with other ventilation system components allow installation in exposed areas. The dedicated software suite, AlnorSIENT, helps designers in selecting the right silencer for specific fans and expected noise levels. Marking ANOR products carry the Polish conformity mark B for construction products and product codes as shown in the technical specifications listed in this catalogue. SPIRA system round silencers are made from galvanized steel sheet and are provided with PZH-NIH Hygiene Certificate no. HK/B/0867/01/2009. Square silencers have the following PZH-NIH Hygiene Certificates: a) The galvanized steel sheet version: HK/B/0100/02/2009 a) The stainless steel sheet version: HK/B/0101/01/2009 ANOR ventilation systems 411

3 Technical specifications - PRODUCT CODE Insulation thickness min. max. Insulation material Insulation Finish Joint Outer cladding Inner cladding ength Baffle Materials type 50 SI glass wool 100 trimmed from reel, flexible press-formed cover segmented cover male port w/gasket female port from 355 mm SPIRA tube perforated sheet 300/500/600/900/10 00/1200/1500/ max galvanized steel or stainless steel aluminium copper SIB glass wool trimmed from reel, flexible segmented cover male port w/gasket female port from 355 mm 600/900/ SPIRA tube perforated sheet 1000/1500 straight, 100 mm galvanized steel or stainless steel aluminium copper 50 SIBO glass wool 100 trimmed from reel, flexible press-formed cover segmented cover male port w/gasket female port from 355 mm SPIRA tube perforated sheet 300/500/600/900/1000/1200/1500 round from d-100 to d-500 galvanized steel or stainless steel aluminium copper 100 SIR rock wool 150 trimmed from reel, flexible segmented cover male port w/gasket female port from 355 mm SPIRA tube perforated sheet 300/600/900/1000/1200/1500 galvanized steel or stainless steel aluminium copper SIBR rock wool trimmed from reel, flexible segmented cover male port w/gasket female port from 355 mm 1000/1200/ SPIRA tube perforated sheet 1500 straight, 100 mm galvanized steel or stainless steel aluminium copper SIBRO rock wool trimmed from reel, flexible press-formed cover segmented cover male port w/gasket female port from 355 mm SPIRA tube perforated sheet 300/600/900/1000/1200 round from d-100 to d-500 galvanized steel or stainless steel aluminium copper SI-G glass wool trimmed from reel, flexible segmented - hemmed and seamed with cladding male port w/gasket plain tube perforated sheet 300/500/600/900/1000 galvanized steel or stainless steel aluminium copper SI-G glass wool trimmed from reel, flexible segmented - hemmed and seamed with cladding male port w/o gasket plain tube perforated sheet 300/500/600/900/1000 galvanized steel or stainless steel aluminium copper SQ glass wool trimmed from reel, flexible perforated square cover w/port male port w/gasket square 600/900/1200 sheet galvanized steel or stainless steel aluminium copper SQ glass wool trimmed from reel, flexible perforated square cover w/port male port w/gasket square 300/500/600/900/1000 sheet galvanized steel or stainless steel aluminium copper 412 ANOR ventilation systems

4 Technical specifications - glass wool SQ-CR with lining rigid panel square cover w/port male port w/gasket square with lining glass wool SQ-CRQ with lining rigid panel with lining square cover w/port + angle frame on the other side male port w/gasket + square w/pq-20 angle on the other side square rigid panel SQQ glass wool square cover w/port male port w/gasket square with lining rigid panel SQQ-B glass wool with lining square cover w/port male port w/gasket square + side branch port 50 BSI glass wool 100 trimmed from reel, flexible segmented segmented cover male port w/gasket bend 25 SEF glass wool 50 trimmed from reel, flexible flat metal cover male port w/safe edge male port w/gasket female port w/safe edge aluminiumpolyester foil 25 SEA glass wool 50 trimmed from reel, flexible none female port Aluduct - alupoly film over wire ribs 25 SESD glass wool 50 trimmed from reel, flexible flat metal cover male port w/safe edge male port w/gasket female port w/safe edge aluminiumpolyester foil 25 SEAF glass wool 50 trimmed from reel, flexible galvanized segmented cover male port w/safe edge male port w/gasket female port w/safe edge FEX 25 SEFD glass wool 50 trimmed from reel, flexible galvanized segmented cover male port w/safe edge male port w/gasket female port w/safe edge Aluduct - alupoly film over wire ribs 25 SEF glass wool 50 trimmed from reel, flexible flat metal cover male port w/safe edge male port w/gasket female port w/safe edge polyethylene cladding insulation panel ridge insulation panel ridge + perforated end insulation panel square insulation panel square perforated sheet FEX perforated Aluduct perforated Aluduct perforated FEX perforated FEX perforated FEX perforated 500/700/900/1200 galvanized steel or stainless steel aluminium copper 500/700/900/ 1200 galvanized steel or stainless steel aluminium copper 600/900/1200 galvanized steel or stainless steel aluminium copper 600/900/1200 galvanized steel or stainless steel aluminium copper 90 degree other angles are available on request galvanized steel or stainless steel aluminium copper 500/600/1000/ 1200 aluminium 500/600/1000/ 1200 aluminium 500/600/1000/ 1200 aluminium 500/600/1000/ 1200 aluminium 500/600/1000/ 1200 aluminium 500/600/1000/ 1200 aluminium ANOR ventilation systems 413

5 System description Material specifications The silencers are made from galvanized steel sheets. Other materials are available on request: /304 stainless steel sheet /316 stainless steel sheet, molybdenumenriched AW-1050A H24 aluminium sheet Silencer tolerance limits t Specify the metal grade designation when ordering. Note that if no metal grade is specified in your order, the product will be made from the standard galvanized steel sheet. Examples of metal grade ordering designations: SI-K /304 SI-K /316 SI-A-. AW-1050A H24 Components made from stainless steel have to be inspected at least every 6 months. Product code examples Product code: type Insulation thickness Ød 1 Silencer dimensions The SPIRA system must follow these specifications to meet the required sealing performance. Ød 1 nom e SI - iii - aaa - bbb tolerance Diameter Ød 1 nom Min. - max. diameter Ød 1 min - Ød 1 max Sheet thickness t nom ANOR ventilation systems

6 Tolerance limits for ventilation silencers made from stainless steel, copper, or aluminium /304 sheet components Diameter Ød nom Sheet thickness t nom /316 sheet components Diameter Ød nom Sheet thickness t nom AW-1050A H24 sheet components Diameter Ød nom Sheet thickness t nom M1-E sheet components Diameter Ød nom Sheet thickness t nom The and stainless steel silencers are designed for use with round and square ducts and fittings. The covers are segmented and the component wall thickness sizes depend on the silencer diameter and material. The steel sheet cladding features a perforated inner cladding of steel sheet; the molybdenum-enriched version manufacturability is determined and quoted on special request only. The SIBO silencer baffle breasts are conical and segmented. Before ordering your silencer, verify that the glass or rock wool and the lining or glass cloth will provide sufficient resistance to the airborne contaminants inside the ductwork. The perforation style, the wool type and the lining type can provide the sound insulation performance identical to that of the standard galvanized steel sheet silencers. The copper or aluminium sheet ducted silencers perfectly match spiral coiled tubes and round segmented fittings. The outer cladding and the inner perforated cladding are made of copper or aluminium sheet, respectively. The SIBO and SIBRO silencer baffle breasts are segmented. The rock or glass wool with a lining can provide the sound insulation performance identical to that of the standard galvanized steel sheet silencers. ANOR ventilation systems 415

7 System description Measurement method A selection of the SPIRA system silencers have been tested by the Institute of Power Engineering, Research Institute, Thermal Technology Branch ITC in Łódź. The silencer sample performance was measured in a reverberation chamber as per EN ISO 7235:2009, Acoustics. aboratory measurement procedures for ducted silencers and air-terminal units. Insertion loss, flow noise and total pressure loss, and EN ISO 3741:2010, Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for reverberation test rooms. The measurement scheme is shown below: subsitute kanał zastępczy duct speaker komora chamber głośnika tested badany silencer tłumik komora reverberation pogłosowa chamber tłumik silencer wentylatora wentylator fan tłumik silencer wentylatora The chart below shows the sound insulation parameters for a selection of the SI-50 silencers of various diameter sizes and identical body length. 416 ANOR ventilation systems

8 System description The AlnorSIENT software suite is a silencer selection tool for HVAC designers. AlnorSIENT calculates the silencer performance characteristics based on the user's input data. AlnorSIENT enables HVAC designers to analyse the key product features. The software product database contains the sound insulation performance data for round and square silencers. AlnorSIENT features a very user-friendly, intuitive, and highly functional GUI with multiple panels. The panels make it possible to review Product Data Sheets, 3D models and performance data tables at a glance. AlnorSIENT can provide several alternative silencers to choose from for the expected sound insulation performance. The 3D models of silencers can be exported to IFC and DXF files. Once a silencer is chosen, AlnorSIENT will export detailed lists of technical specifications for an easy cost estimation of the ventilation system. Application advantages of AlnorSIENT Choose the silencer to match the specified ventilation fan and the expected sound insulation performance Several alternative silencers to choose from for the expected sound insulation performance Full lists of technical specifications and data A comprehensive database of sound performance data for round and square silencers Automatic silencer cost estimation in the Distributor's Edition Silencer 3D models to exportable to IFC and DXF files AlnorSIENT is a freeware programme. ANOR ventilation systems Design software Download and install AlnorSIENT 417

9 Round silencers SI/SIB/SIR/SIBR/SIBO/SIBRO Technical specifications Design The ducted silencers are made of a spiral coiled duct for the outer cladding with an inner cladding of perforated sheet. The clearance between the outer and inner cladding is filled with mineral wool, which is a sound-absorbing material. The glass fibre cloth between the perforated inner cladding and the mineral wool keeps the mineral wool fibres from being entrained by the air flow. The silencers are available with the connection diameter sizes from 80 mm to 800 mm and the standard length sizes of 300, 600, 900 or 1500, depending on the connection diameter. Technical specifications See the respective sections for dimensions, weight, sound insulation performance and pressure loss values of specific product types. Connections The standard silencer versions are supplied with gaskets. The silencer sizes d 1 > 315 mm require ordering the NS male couplings. Cross-section for specific types of SI and SIR, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. Cross-section of SI and SIR with 50 mm thick insulation; applies to the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with pressformed covers. Cross-section for specific types of SI, SIR, d 1 > 315 mm The female joint silencer versions for d 1 < 315 mm are designated SIF and SIRF Cross-section for specific types of SIB and SIBR The female joint silencer versions for d 1 < 315 mm are designated SIBF and SIBRF 418 ANOR ventilation systems

10 Round silencers SI The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Glass wool thickness inside the silencer: 50 mm for SI-50 depends on the outer cladding size. 100 mm for SI-100 depends on the outer cladding size. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SI galvanized steel sheet SI-K /304 stainless steel sheet SI-K /316 stainless steel sheet SI-A aluminium sheet SI-CU copper sheet Product code examples Product code: SI - iii - aaa - bbb type Insulation thickness Ød 1 For diameter d mm Cross-section for specific types of SI and SIR, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. Cross-section of SI and SIR with 50 mm thick insulation; applies to the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with pressformed covers. Cross-section for specific types of SI and SIR, d 1 > 315 mm The female joint silencer versions for d 1 < 315 mm are designated SIF and SIRF ANOR ventilation systems 419

11 Round silencers SI 420 SI mm insulation Ød 1 nom Sound insulation (db) D nom at frequency (Hz) Weight (kg) SI SI * * * * * * SI * * * * * * SI SI * * * * * * SI * * * * * * SI * * * * * * Ød 1 nom ANOR ventilation systems Sound insulation (db) D nom at frequency (Hz) Weight (kg) SI SI SI SI SI SI SI SI * press-formed covers

12 Round silencers SI Pressure drop SI mm insulation Pressure loss at air flow velocity (m/s) SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI Pressure loss at air flow velocity (m/s) SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI ANOR ventilation systems 421

13 Round silencers SI SI mm insulation Ød 1 nom Sound insulation (db) D nom at frequency (Hz) Weight (kg) SI SI SI SI SI SI SI Ød 1 Sound insulation (db) D nom Weight at frequency (Hz) nom (kg) SI SI SI SI SI SI SI SI SI ANOR ventilation systems

14 Round silencers SI Pressure drop SI mm insulation Pressure loss at air flow velocity (m/s) SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI Pressure loss at air flow velocity (m/s) SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI SI ANOR ventilation systems 423

15 Round silencers SIB The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Glass wool thickness inside the silencer: 100 mm for SIB-10 depends on the outer cladding size. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SIB galvanized steel sheet SIB-K /304 stainless steel sheet SIB-K /316 stainless steel sheet SIB-A aluminium sheet SIB-CU copper sheet Product code examples Product code: SIB - aaa - bbb type Ød 1 Cross-section for specific types of SIB and SIBR, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. Cross-section of SIB and SIBR with 50 mm thick insulation; designed for the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with press-formed covers. Cross-section for specific types of SIB and SIBR, d 1 > 315 mm. The female joint silencer versions for d 1 < 315mm are designated SIBF and SIBRF 424 ANOR ventilation systems

16 Round silencers SIB Sound insulation (db) Ød 1 nom D nom Weight at frequency (Hz) (kg) SIB SIB SIB SIB SIB Technical specifications [Pa/m] Pressure loss, Dp t [l/s] [m 3 /h] Flow rate q ANOR ventilation systems 425

17 Round silencers SIBO The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Glass wool thickness inside the silencer: 50 mm for SIBO-50 depends on the outer cladding size. 100 mm for SIBO-100 depends on the outer cladding size. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Product code examples Product code: SIBO - iii - aaa - bbb d2 type Insulation thickness Ød 1 Cross-section for specific types of SIBO, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. d2 Cross-section of SIBO with 50 mm thick insulation; designed for the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with pressformed covers. d2 Cross-section for specific types of SIBO, d 1 > 315 mm 426 ANOR ventilation systems

18 Round silencers SIBO SIBO mm insulation Ød 1 D Ød 2 Weight (kg) SIBO * SIBO * SIBO * SIBO * SIBO SIBO SIBO SIBO SIBO * SIBO * SIBO * SIBO * SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO Ød 1 D Ød 2 Weight (kg) SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO * press-formed covers ANOR ventilation systems 427

19 Round silencers SIBO SIBO mm insulation Ød 1 D Ød 2 SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO Weight (kg) Ød 1 D Ød 2 SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO Weight (kg) 428 ANOR ventilation systems

20 Round silencers SIBO Sound insulation SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO ANOR ventilation systems Sound insulation (db) at frequency (Hz) SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO mm insulation Sound insulation (db) at frequency (Hz)

21 Round silencers SIBO 430 Pressure drop SIBO mm insulation Pressure loss at air flow velocity (m/s) SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO ANOR ventilation systems Pressure loss at air flow velocity (m/s) SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO SIBO

22 Round silencers SIR The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Rock wool thickness inside the silencer: 100 mm for SIR-10 depends on the outer cladding size. 150 mm for SIR-15 depends on the outer cladding size. Insulation: Insulation material: rock wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SIR galvanized steel sheet SIR-K /304 stainless steel sheet SIR-K /316 stainless steel sheet SIR-A aluminium sheet SIR-CU copper sheet Product code examples Product code: SIR - iii - aaa - bbb type Insulation thickness Ød 1 Cross-section for specific types of SI and SIR, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. Cross-section of SI and SIR with 50 mm thick insulation; applies to the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with pressformed covers. Cross-section for specific types of SI and SIR, d 1 > 315 mm ANOR ventilation systems 431

23 Round silencers SIR 432 SIR mm insulation Ød 1 nom Sound insulation (db) D nom at frequency (Hz) Weight (kg) SIR SIR SIR SIR SIR SIR SIR SIR SIR SIR SIR SIR mm insulation Ød 1 nom ANOR ventilation systems D nom Sound insulation (db) at frequency (Hz) Weight (kg) SIR SIR SIR SIR SIR SIR

24 Round silencers SIBR The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Rock wool thickness inside the silencer: 100 mm for SIBR-10 depends on the outer cladding size. Insulation: Insulation material: rock wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SIBR galvanized steel sheet SIBR-K /304 stainless steel sheet SIBR-K /316 stainless steel sheet SIBR-A aluminium sheet SIBR-CU copper sheet Product code examples Product code: SIBR - aaa - bbb type Ød 1 Cross-section for specific types of SIB and SIBR, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. Cross-section of SIB and SIBR with 50 mm thick insulation; designed for the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with pressformed covers. Cross-section for specific types of SIB and SIBR, d 1 > 315 mm ANOR ventilation systems 433

25 Round silencers SIBR SIBR mm insulation Ød 1 nom Sound insulation (db) D nom at frequency (Hz) Weight (kg) SIBR SIBR SIBR SIBR SIBR [Pa/m] Pressure loss, Dp t [l/s] Flow rate q [m 3 /h 434 ANOR ventilation systems

26 Round silencers SIBRO The silencers are delivered with the SPIRA system seals in the standard version. The diameter sizes d 1 > 315 mm require ordering the NS male couplings which need to be installed in the silencer before connecting the silencer to the ductwork. The male fittings are available separately. They are not delivered with the silencers. Rock wool thickness inside the silencer: 100 mm for SIBRO-10 depends on the outer cladding size. 150 mm for SIBRO-15 depends on the outer cladding size. Insulation: Insulation material: rock wool. Insulation type: trimmed from reel, flexible. d2 Available materials Product code examples SIBRO galvanized steel sheet SIBRO-K /304 stainless steel sheet SIBRO-K /316 stainless steel sheet Product code examples Product code: SIBRO - iii - aaa - bbb type Insulation thickness Ød 1 Cross-section for specific types of SIBRO, d mm. Not applicable to the diameter sizes: D-100, D-125, D-160, D-200, D-250 with 50 mm thick insulation. d2 Cross-section of SIBRO with 50 mm thick insulation; designed for the diameter sizes: D-100, D-125, D-160, D-200, D-250. The silencers are fabricated with press-formed covers. d2 Cross-section for specific types of SIBRO, d 1 > 315 mm. ANOR ventilation systems 435

27 Round silencers SIBRO SIBRO mm insulation Ød 1 D Ød 2 Weight (kg) SIBRO * SIBRO * SIBRO * SIBRO * SIBRO SIBRO SIBRO SIBRO SIBRO * SIBRO * SIBRO * SIBRO * SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO Ød 1 D Ød 2 Weight (kg) SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO * press-formed covers 436 ANOR ventilation systems

28 Round silencers SIBRO SIBRO mm insulation Ød 1 D Ød 2 Weight (kg) SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO Ød 1 D Ød 2 Weight (kg) SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO SIBRO ANOR ventilation systems 437

29 Round silencers SI-G/SI-G The SI-G silencers are not provided with gaskets. The SI-G silencers are delivered with the SPIRA system seals. The SI-G and SI-G silencers have permanently fixed covers, which are not removable. Glass wool thickness inside the silencer: 25 mm for SI-G-25 / SI-G-25 depends on the outer cladding size. 50 mm for SI-G-50 / SI-G-50 depends on the outer cladding size. 100 mm for SI-G-100 / SI-G-100 depends on the outer cladding size. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SI-G galvanized steel sheet SI-G-K /304 stainless steel sheet SI-G-K /316 stainless steel sheet SI-G-A aluminium sheet SI-G-CU copper sheet Product code examples Product code: SI-G - iii - aaa - bbb type Insulation thickness Ød 1 SI-G SI-G 438 ANOR ventilation systems

30 Round silencers SI-G/SI-G SI-G-50 / SI-G mm insulation Ød 1 Sound insulation (db) D nom Weight at frequency (Hz) nom (kg) SI-G SI-G SI-G SI-G SI-G SI-G SI-G ANOR ventilation systems 439

31 SQ-25 The SQ silencers are made of a square duct for the outer cladding with an inner cladding of perforated sheet. The clearance between the outer and inner cladding is filled with 25 mm thick sound-proofing mineral wool. The silencers of 400 mm in size and larger are made with a 50 mm thick sound-proofing baffle. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SQ galvanized steel sheet SQ-25-K /304 stainless steel sheet SQ-25-K /316 stainless steel sheet SQ aluminium sheet SQ-25-CU copper sheet Product code examples Product code: type Insulation thickness Ød SQ aaa - bbb Ød 1 A B Sound insulation (db) at frequency (Hz) Weight (kg) ANOR ventilation systems

32 SQ-25 Pressure drop Pressure loss at air flow velocity (m/s) SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ SQ ANOR ventilation systems 441

33 SQ-50 The SQ silencers are made of a square duct for the outer cladding with an inner cladding of perforated sheet. The clearance between the outer and inner cladding is filled with 50 mm thick sound-proofing mineral wool. The silencers of 400 mm in size and larger are made with a 50 mm thick sound-proofing baffle. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SQ galvanized steel sheet SQ-50-K /304 stainless steel sheet SQ-50-K /316 stainless steel sheet SQ aluminium sheet SQ-50-CU copper sheet Product code examples Product code: type Insulation thickness Ød SQ aaa - bbb Ød 1 A B Weight (kg) ANOR ventilation systems

34 SQ-50 Ød 1 A B Weight (kg) ANOR ventilation systems 443

35 SQ-CR/SQ-CRQ SQ-CR Ød B A SQ-CRQ A Ød B 444 The SQ-CR silencer for the spiral duct system provides an extremely good insulation of all noise types in ventilation systems operated in industrial, office, or single-family buildings. The silencer housing is square-shaped and available in two different sizes fitted with a round port, which has a factory-installed EPDM gasket to achieve air tightness class D. The sound insulation layer is made of mineral wool with lining and covered with a ridged inner cladding to increase the sound-insulating surface area. Note: SQ-CR round intake and outlet SQ-CRQ PQ angle frame intake and round outlet Insulation: Insulation material: glass wool + lining Insulation type: rigid panel with lining Available materials Product code examples SQ-CR galvanized steel sheet SQ-CR-K /304 stainless steel sheet SQ-CR-K /316 stainless steel sheet SQ-CR aluminium sheet SQ-CR-CU copper sheet Product code examples Product code: type Ød SQ-CR - aaa - bbb ANOR ventilation systems Ød 1 A B SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR SQ-CR

36 SQ-CR/SQ-CRQ Sound insulation Insertion loss value in thirds, D (db) Noise frequency, f (Hz) 540 m3/h 770 m3/h 860 m3/h 920 m3/h f (Hz) D (db) D (db) D (db) D (db) ANOR ventilation systems 445

37 SQQ-30 B Ød A The SQQ-30 silencers are made of a square duct for the outer cladding. The clearance between the outer and inner cladding is filled with 30 mm thick sound-proofing mineral wool. Insulation: Insulation material: glass wool. Insulation type: rigid panel with lining Available materials Product code examples SQQ galvanized steel sheet SQQ-30-K /304 stainless steel sheet SQQ-30-K /316 stainless steel sheet SQQ-30-A aluminium sheet SQQ-30-CU copper sheet Product code examples Product code: type A B SQQ-30 - aaa - bbb Ød nom A B Weight (kg) ANOR ventilation systems

38 SQQ-30 Ød nom A B Weight (kg) Technical specifications Pressure loss Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s ANOR ventilation systems 447

39 SQQ-30 Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s Sound insulation (db) Ød 63 Hz 125 Hz 250 Hz 500 Hz 1k 2k 4k 8k ANOR ventilation systems

40 SQQ-30 Ød 63 Hz 125 Hz 250 Hz 500 Hz 1k 2k 4k 8k ANOR ventilation systems 449

41 SQQ-B-30 B Ød A The SQQ-B-30 silencers are made of a square duct for the outer cladding. The SQQ-B-30 has one branch port on the side wall. The clearance between the outer and inner cladding is filled with 30 mm thick sound-proofing mineral wool. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Available materials Product code examples SQQ-B galvanized steel sheet SQQ-B-30-K /304 stainless steel sheet SQQ-B-30-K /316 stainless steel sheet SQQ-B-30-A aluminium sheet Product code examples Product code: type A B SQQ-B-30 - aaa - bbb Ød nom A B Weight (kg) ANOR ventilation systems

42 SQQ-B-30 Ød nom A B Weight (kg) Technical specifications Pressure loss Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s ANOR ventilation systems 451

43 SQQ-B-30 Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s Ød nom 2 m/s 4 m/s 8 m/s 10 m/s 12 m/s Sound insulation (db) Ød 63 Hz 125 Hz 250 Hz 500 Hz 1k 2k 4k 8k ANOR ventilation systems

44 SQQ-B-30 Ød 63 Hz 125 Hz 250 Hz 500 Hz 1k 2k 4k 8k ANOR ventilation systems 453

45 Attenuating bends BSI The BSI attenuating bend has been designed for ventilation systems where confined installation space or other requirements prevent using straight (ducted) silencers, e.g. SI. The attenuating bend is made of two duct bends inside one another. The inner bend is made of perforated steel sheet. The clearance between the outer cladding and the inner perforated cladding is filled with sound-insulating material. To prevent its entrainment and loss due to the air flow, the sound-insulating material is lined with a cloth. The standard attenuating bends sized Ø315 mm are supplied with the SPIRA system connectors. The attenuating bends sized Ø355 mm and larger are supplied with the SPIRA system NS connectors. The BSI attenuating bends with 50 mm thick insulation are available in the following diameter sizes: Ø The attenuating bends with 100 mm thick insulation are available in the following diameter sizes: Ø The silencers are fully made from galvanized steel sheets. The sound insulation has been measured according to GSM guidelines. Patented design. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. BSI mm insulation Ød 1 nom D Sound insulation (db) at frequency (Hz) Weight (kg) BSI mm insulation Ød 1 nom D Sound insulation (db) at frequency (Hz) Weight (kg) Available materials Product code examples BSI galvanized steel sheet BSI-K /304 stainless steel sheet BSI-K /316 stainless steel sheet BSI-A aluminium sheet Product code examples Product code: BSI - aaa - bbb 454 type Insulation thickness Ød ANOR ventilation systems

46 Attenuating bends BSI Technical specifications [Pa/m] Pressure loss, Dp t [l/s] [m 3 /h] Flow rate q ANOR ventilation systems 455

47 Flexible silencers with aluminium-polyester cladding SEF The SEF flexible silencer is made of the Alnor Flex perforated duct. The sound insulating layer is 25 mm thick and clad in aluminium and polyester. The silencer is connected to the ductwork with male flanges made of metal. The product is available in two length sizes, 600 mm and 1200 mm. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Pressure drop: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. Production version Product code example: SEF with male connections (standard) SEF with male connections and EPDM gaskets SEFF with female connections Ød 1 nom Sound insulation (db) at frequency (Hz) Ød 1 nom Sound insulation (db) at frequency (Hz) mm thick insulation and = 600 mm and 1200 mm are available on request. Product code examples Product code: SEF type Insulation thickness Silencer diameter Silencer length 456 ANOR ventilation systems

48 Flexible silencers with aluminium-polyester cladding SEF Technical specifications Pressure loss across SEF-25 silencer t [ o C] Silencer pressure loss (Pa/m) Diameter: 100 mm Flow velocity: 15 m/s Flow rate (m 3 /h) The pressure loss has been calculated for the silencer stretched and laid straight. Silencer length = 1.0 m 1 Pa = 0.01 mbar = ca. 0.1 mm WG ANOR ventilation systems 457

49 Flexible silencers with polyethylene cladding SEF-P The SEF-P flexible silencer is made of the Alnor Flex perforated duct. The sound insulating layer is 25 mm thick and clad in polyethylene. The silencer is connected to the ductwork with male flanges made of metal. The product is available in two length sizes, 600 mm and 1200 mm. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Pressure drop: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. Production version Product code example: SEF-P with male connections (standard version) SEF-P with male connections and EPDM gaskets SEFF-P with female connections Ød 1 nom Ød 1 nom Sound insulation (db) at frequency (Hz) Sound insulation (db) at frequency (Hz) mm thick insulation and = 500 mm and 1000 mm are available on request. Product code examples Product code: SEF-P type Insulation thickness Silencer diameter Silencer length 458 ANOR ventilation systems

50 Flexible silencers with polyethylene cladding SEF-P Technical specifications Pressure loss across SEF-P flexible silencer t [ o C] Silencer pressure loss (Pa/m) Diameter: 100 mm Flow velocity: 15 m/s Flow rate (m 3 /h) Pressure loss across metal duct silencers Silencer length = 1.0 m 1 Pa = 0.01 mbar = ca. 0.1 mm WG ANOR ventilation systems 459

51 Flexible silencers with aluminium-polyester foil cladding SEA The SEA flexible silencer is made of the AUDUCT perforated duct. The sound-insulating material is 25 mm thick and lined with the 45-micron thick AUDUCT AD- cladding reinforced with a steel wire. The flexible silencer is installed directly on the fittings with band clips and self-adhesive sealing tapes. The product is available in two length sizes, 500 mm and 1000 mm. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Sound insulation: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. w1 Ød nom w , , , , , , , 1000 = 600 mm and 1200 mm are available on request. Technical specifications Chart 1: Sound insulation Sound insulation thickness: 25 mm, duct length: 1000 mm Sound insulation (db) Product code examples Product code: SEA type Insulation thickness Silencer diameter Silencer length w1 Frequency (Hz) Chart 2: Sound insulation Sound insulation thickness: 25 mm, duct length: 1000 mm w1 w3 Sound insulation (db) 460 ANOR ventilation systems Frequency (Hz)

52 Flexible silencers with aluminium-polyester cladding SEA Technical specifications Chart 1: Pressure loss characteristics Air velocity (m/s) ØD Volumetric flow rate (m 3 /h) Ø500 Ø450 Ø400 Ø350 średnica [mm] Ø315 Ø300 Ø250 Ø224 Ø200 Ø180 Ø160 Ø150 Ø140 Ø125 Ø112 Ø100 Ø80 Pressure loss over 1 m long duct ØD Example R o 90 Q=3m R o 2x90 Q=4,5m Z=Q x (D/300) Z duct length equivalent (m) Q length (m) (see Fig. 1) D duct diameter Fig. 1 R ØD o 45 Q=1.5m R ØD o 180 Q=7.5m Temperature -20 C -0 C +20 C +40 C +60 C +80 C +100 C Correction factor ANOR ventilation systems Inputs: To be calculated: Air velocity = 5m/s Pressure loss =? Duct diameter = 200 mm 90 bend Duct length = 1 m Calculation: Pressure loss over 1 m of length = 3 Pa (see Chart 1) Q = 3m (see Fig. 1) Z = 3 x (200/300) = 1.99 m Pressure loss = (1.99+1) x 3 Pa/m = 8.97 Pa 461

53 Flexible silencers with aluminium-polyester cladding SESD The SESD flexible silencer is made of the AUDUCT perforated duct. The sound-insulating material is 25 mm thick and lined with the 45-micron thick AUDUCT AD- cladding. The silencer is connected to the ductwork with male flanges made of metal. The product is available in two length sizes, 500 mm and 1000 mm. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. w1 Ød nom w , , , , , , , mm thick insulation and = 600 mm and 1200 mm are available on request. Technical specifications Chart 1: Sound insulation Sound insulation thickness: 25 mm, duct length: 1000 mm Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Sound insulation: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. Production version Product code example: SESD with male connections (standard) SESD with male connections and EPDM gaskets SESDF with female connections Sound insulation (db) w1 Frequency (Hz) Chart 2: Sound insulation Sound insulation thickness: 25 mm, duct length: 1000 mm w1 w3 Product code examples Product code: SESD type Insulation thickness Silencer diameter Silencer length Sound insulation (db) 462 ANOR ventilation systems Frequency (Hz)

54 Flexible silencers with aluminium-polyester cladding SESD Technical specifications Chart 1: Pressure loss characteristics Air velocity (m/s) ØD Volumetric flow rate (m 3 /h) Ø500 Ø450 Ø400 Ø350 średnica [mm] Ø315 Ø300 Ø250 Ø224 Ø200 Ø180 Ø160 Ø150 Ø140 Ø125 Ø112 Ø100 Ø80 Pressure loss over 1 m long duct ØD Example R o 90 Q=3m R o 2x90 Q=4,5m Z=Q x (D/300) Z duct length equivalent (m) Q length (m) (see Fig. 1) D duct diameter Fig. 1 R ØD o 45 Q=1.5m R ØD o 180 Q=7.5m Temperature -20 C -0 C +20 C +40 C +60 C +80 C +100 C Correction factor ANOR ventilation systems Inputs: To be calculated: Air velocity = 5m/s Pressure loss =? Duct diameter = 200 mm 90 bend Duct length = 1 m Calculation: Pressure loss over 1 m of length = 3 Pa (see Chart 1) Q = 3m (see Fig. 1) Z = 3 x (200/300) = 1.99 m Pressure loss = (1.99+1) x 3 Pa/m = 8.97 Pa 463

55 Flexible silencers with aluminium cladding SEAF The SEAF flexible silencer is made of two AF-A flexible ducts, one placed in the other. The sound insulation thickness is 25 mm. Both ends of the silencer are provided with male reducers. The SEAF silencer is available in two length sizes, 500 mm and 1000 mm. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Sound insulation: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. Production version Product code example: SEAF with male connections (standard version) SEAF with male connections and EPDM gaskets SEAFF with female connections Ød 1 nom Ød nom , , , , , , , 1000 Sound insulation (db) at frequency (Hz) mm thick insulation and = 600 mm and 1200 mm are available on request. Product code examples Product code: SEAF type Insulation thickness Silencer diameter Silencer length 464 ANOR ventilation systems

56 Flexible silencers with aluminium-polyester cladding SEFD The SEFD flexible silencer is made of the Alnor Flex perforated duct. The sound insulating layer is 25 mm thick and clad in aluminium and polyester. The silencer is connected to the ductwork with male flanges made of metal. The product is available in two length sizes, 600 mm and 1200 mm. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Insulation: Insulation material: glass wool. Insulation type: trimmed from reel, flexible. Temperature range: -20 C to +140 C Thermal insulation performance of mineral wool: λ = W/mK at 24 C Pressure drop: See the enclosed diagram. Fire resistance: The silencers are made from fire-proof materials. Production version Product code example: SEFD with male connections (standard version) SEFD with male connections and EPDM gaskets SEFDF with female connections Ød 1 nom Ød 1 nom Sound insulation (db) at frequency (Hz) Sound insulation (db) at frequency (Hz) mm thick insulation and = 600 mm and 1200 mm are available on request. Product code examples Product code: SEFD type Insulation thickness Silencer diameter Silencer length ANOR ventilation systems 465

57 Flexible silencers with aluminium-polyester cladding SEFD Technical specifications Pressure loss across SEFD-25 silencer t [ o C] Silencer pressure loss (Pa/m) Diameter: 100 mm Flow velocity: 15 m/s Flow rate (m 3 /h) Pressure loss across metal duct silencers Silencer length = 1.0 m 1 Pa = 0.01 mbar = ca. 0.1 mm WG 466 ANOR ventilation systems

58 Flexible textile silencer SEST The SEST flexible silencer comprises an inner textile duct and an outer duct, between which is a sound-proofing layer made of 25 mm thick mineral wool lined with aluminium and polyester. The connection ends are finished with safe edges. Other silencer versions are available on request: with EPDM gaskets, female flanges, or in other length sizes. Available length sizes: 500, 600, 1000, and 1200 mm. Temperature range: -20 C to +140 C Pressure drop: See the enclosed diagram. Ød 1 nom Sound insulation (db) at frequency (Hz) The 50 mm sound-proofing insulation is available on request. Production version Product code example: SEST with male connections (standard version) SEST with male connections and EPDM gaskets SESTF with female connections Product code examples Product code: SEST type Insulation thickness Silencer diameter Silencer length ANOR ventilation systems 467

59 b Rectangula duct silencers SC/SRC/SPC The SC and SRC rectangular duct silencers reduce the noise level in ventilation and A/C systems. This silencer type is usually installed between a fan and an air supply or exhaust duct, and upstream of air supply vents. All silencers are made of a housing and inner baffles. The housing is made from galvanized steel sheet and its ends are framed with steel sheet angles. All baffles inside the silencer have a round breast at one end and comprise a galvanized steel frame with a sound-insulating insert which absorbs the acoustic energy from the air flow. The sound-insulating insert is a set of non-flammable mineral wool panels. The outer surface of the sound-insulating insert is lined with a special abrasion-resistant textile to protect the mineral wool from wear and tear. The mineral wool panels are finished with a glass fibre lining in black; this lining is suitable for systems with a maximum air flow rate of 20 m/s. The maximum heat medium temperature is 250 C. The product is non-flammable. The products with larger dimensions a and/or b feature compound baffles. There are three baffle design types: sound-absorbing baffles; R sound-absorbing resonator baffles; P perforated sound-absorbing resonator baffles The baffle spacing s ranges from 40 to 100 mm. The baffle surfaces should be protected against damage during transport, storage and on-site installation of the silencers. The SC, SRC and SPC rectangular duct silencers are installed in the ductwork with the baffles upright. a c c/2 468 ANOR ventilation systems

60 Rectangular duct silencers SC/SRC/SPC Available materials Product code examples SC Z275 galvanized steel sheet SK /304 stainless steel sheet SM /316 stainless steel sheet SA to 1.0 mm thick aluminium sheet Silencer baffle types SC Silencer with sound-absorbing baffles steel frame + mineral wool in lining: This baffle type is generally used for sound insulation at low and medium frequencies. Other stainless steel sheet grades: please submit a request for quotation to determine manufacturability. Product code example: Product code: SC Type baffle Type R baffle Type P baffle Material c 100 baffle thickness c 200 baffle thickness Number of baffles width a height b length SRC Silencer with perforated sound-absorbing resonator baffles steel frame + mineral wool in lining + ½ of baffle length covered with steel sheet: This baffle type is generally used for sound insulation at medium and high frequencies. Product code example: Silencer with 100 mm thick type baffle, 4 baffles: SC Manufacturability Material: Z275 galvanized steel sheet 0.8 to 1.0 mm thick aluminium sheet stainless steel sheet stainless steel sheet Other stainless steel sheet grades: please submit a request for quotation to determine manufacturability. Number of baffles: Silencer with 1 baffle: 2 half-baffles at the duct sides Silencer with 2 baffles: 1 full baffle + 2 half-baffles at the duct sides Silencer with 3 baffles: 2 full baffles + 2 half-baffles at the duct sides Silencer with 5 baffles: 4 full baffles + 2 half-baffles at the duct sides Baffles: Mineral wool: rock or glass wool; other insulators, e.g. expanded PVC or as supplied by the customer. Baffle thickness: 40 mm to 300 mm with type N3 lining or type G9 washable lining. Mineral wool density: 40 to 100 kg/m 3. The baffle front breast is curved to reduce the air flow turbulence and pressure loss. : PQ frames: see the standard dimensions of square ducts. Other versions are available on request. Front-to-back baffles: stops 1 to 3 cm before the PQ angle at the edge. SPC Silencer with perforated sound-absorbing resonator baffles steel frame + mineral wool in lining + baffle covered over its entire length with perforated steel sheet at an open surface area ratio of 36%: ANOR ventilation systems 469

61 3-baffle rectangular duct silencer SC Sound performance measurement of the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 2 middle baffles + 2 side baffles Mean sound power level: 53.3 db Mean A-weighted sound power level: 37.7 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.49 Table 6. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 980 hpa Duct internal temperature: 21.2 C Air density: 1.16 kg/m ANOR ventilation systems

62 4-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 3 middle baffles + 2 side baffles Mean sound power level: db Mean A-weighted sound power level: 41.3 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.49 Table 12. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 965 hpa Duct internal temperature: 21.6 C Air density: 1.14 kg/m 3 ANOR ventilation systems 471

63 3-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 2 middle baffles + 2 side baffles Mean sound power level: 56.2 db Mean A-weighted sound power level: 47.3 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.59 Table 18. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 955 hpa Duct internal temperature: 21.6 C Air density: 1.13 kg/m ANOR ventilation systems

64 5-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 4 middle baffles + 2 side baffles Mean sound power level: 52.2 db Mean A-weighted sound power level: 44.8 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.46 Table 24. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 980 hpa Duct internal temperature: 21.6 C Air density: 1.16 kg/m 3 ANOR ventilation systems 473

65 4-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 3 middle baffles + 2 side baffles Mean sound power level: 52.2 db Mean A-weighted sound power level: 43.8 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.51 Table 30. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 960 hpa Duct internal temperature: 21.4 C Air density: 1.14 kg/m ANOR ventilation systems

66 4-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 3 middle baffles + 2 side baffles Mean sound power level: 55.0 db Mean A-weighted sound power level: 45.1 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.47 Table 36. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 960 hpa Duct internal temperature: 21.1 C Air density: 1.14 kg/m 3 ANOR ventilation systems 475

67 6-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 5 middle baffles + 2 side baffles Mean sound power level: 52.0 db Mean A-weighted sound power level: 44.9 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.39 Table 42. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 967 hpa Duct internal temperature: 21.6 C Air density: 1.14 kg/m ANOR ventilation systems

68 4-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 3 middle baffles + 2 side baffles Mean sound power level: 52.2 db Mean A-weighted sound power level: 41.8 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.64 Table 48. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 975 hpa Duct internal temperature: 21.6 C Air density: 1.15 kg/m 3 ANOR ventilation systems 477

69 4-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 3 middle baffles + 2 side baffles Mean sound power level: 51.0 db Mean A-weighted sound power level: 39.8 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.91 Table 54. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 967 hpa Duct internal temperature: 21.6 C Air density: 1.14 kg/m ANOR ventilation systems

70 2-baffle rectangular duct silencer SC Sound performance measurements for the SC silencer Product code Height Baffle length Baffle width Flow rate in the duct (m/s) Baffle gap flow (m/s) Baffle gap width SC Components: 1 middle baffle + 2 side baffles Mean sound power level: 50.3 db Mean A-weighted sound power level: 36.8 db (A) Mean octave frequency (Hz) Measured value (db) Calculated value (db) Table 1. Insertion loss, Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 No. Dynamic pressure Volumetric flow rate (m 3 /s) Air volume in baffle gaps (m/s) Pressure loss over substitute duct Pressure loss over specimen Resulting pressure loss zeta** (-) Arithmetic mean zeta: 0.43 Table 60. Test Report no. P-TA 31/2014, ref. DIN EN ISO 7235 Ambient pressure: 955 hpa Duct internal temperature: 21.1 C Air density: 1.13 kg/m 3 ANOR ventilation systems 479

71 b b b b b b Rectangular silencer baffles K-SC/K-SRC/K-SPC Baffle types K-SC a The K-SC / K-SRC / K-SPC baffles are intended for installation inside square ducts when fabricating a ducted silencer. When installed according to the arrangement of the SC silencer, the baffles provide the same sound insulation performance. The baffles can be installed during the assembly of the main ventilation ducts or after the installation of the whole ductwork by removing the relevant ductwork sections. The baffles are installed by inserting, aligning and fastening them with WGO self-drilling screws. The solid sound-absorbing baffle is made of mineral wool with type N3 lining. The entire baffle is open, except for the galvanized steel frame. Sound-insulating baffles available on request: with washable lining with aluminium, stainless steel (various grades) or copper frames other sound insulator densities, from 40 to 100 kg/m 3 manufacturable with possible deviations of the sound insulation performance. a The silencer sides are always lined with the K-SC half-baffle with only a part of it lined with glass fibre, and the rounded breast ends at the side wall. K-SRC a p K K Available materials Product code examples K-S sound-absorbing baffle K-SR sound-absorbing resonator baffle K-SP perforated sound-absorbing resonator baffle C galvanized steel sheet A aluminium sheet K stainless steel sheet M stainless steel sheet CO copper sheet P G half-baffle; asymmetric breast profile baffle with type G9 washable lining 100 full baffle width Product code example: Product code: K-SC - P Type baffle Type R baffle Type P baffle Material Half-baffle G9-lined baffle Full baffle width height length The sound-proofing resonator baffle has one half of the length clad in steel sheet on both sides. See the K-SC specifications for the sound insulator density, materials and half-baffles. The baffle is installed inside the duct with selfdrilling screws or rivets; as a result, a ducted silencer can be fabricated. a a a p K K Zaprojekto piotr.grz Zaprojekto piotr.grz 480 ANOR ventilation systems

72 b b b b b b a a/2 Rectangular silencer baffles K-SC/K-SRC/K-SPC Baffle types K-SPC a przykład zamówienia: K-SC-a-b- K-SC-P-a-b- The perforated sound-proofing resonator baffle is clad in perforated sheet on both sides (and one side only for halfbaffles). The open surface area ratio of the perforation is 36%. All the other structural parts are identical to the K-SC and form a silencer when installed in a square duct. a Zaprojektowany przez Data Sprawdzony przez Data Zatwierdzony przez Data piotr.grzechowiak Nazwa części kulisy Materiał Masa Nie dotyczy Skala 0,11 : Format 1 A3 Important! Half-baffles, e.g. K-SC-P, is 1 / 2 wide as the standard baffle and intended for installation at the ducted silencer side wall: The K-SC-P-100 is 50 mm wide. The K-SC-P-200 is 100 mm wide. K-SC-P a/2 przykład zamówienia: K-SC-a-b- K-SC-P-a-b- Zaprojektowany przez Data Sprawdzony przez Data Zatwierdzony przez Data piotr.grzechowiak Nazwa części kulisy Materiał Skala ANOR 0,11 : ventilation systems Masa Format Nie dotyczy 1 A3 481