Type CF FOR THE REDUCTION OF NOISE IN CIRCULAR DUCTS, FLEXIBLE ALUMINIUM CONSTRUCTION
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1 Hoepage > Products > Sound attenuators > Circular silencers > Type CF Type CF FOR THE REDUCTION OF NOISE IN CIRCULAR DUCTS, FLEXIBLE ALUMINIUM CONSTRUCTION Circular silencers, in flexible aluiniu construction, for the reduction of noise in the circular ducts of air conditioning systes Absorption aterial is non-cobustible ineral wool with RAL quality ark, biosoluble and hence hygienically safe according to the Geran TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC Casing and perforated inner duct ade of aluiniu Variant with spigot has a groove for a lip seal, suitable for circular connecting ducts to EN 1506 or EN Insertion loss easured according to ISO 7235 Casing air leakage to EN 15727, class D Optional equipent and accessories Socket-type spigots on both ends Raised edges at both ends With lip seals on both ends
2 APPLICATION Application Flexible circular silencers Type CF for the reduction of noise in the circular ducts of air conditioning systes For the reduction of air-regenerated noise of air terinal units LVC and TVR, and of echanical self-powered controllers RN and VFC For the reduction of fan noise Can be used as cross talk silencer to reduce the transfer of noise through ducts between neighbouring roos Special characteristics Insertion loss easured according to ISO 7235 Very flexible and consequently suitable for installation in coplicated duct systes and restricted spaces Absorption aterial is non-cobustible Insulation thickness 25 or 50 Sallest bend radius 3 outer diaeter D₃ Noinal sizes 80, 100, 125, 160, 200, 250, 315, 400 DESCRIPTION Variants 025: Circular silencer with 25 insulation 050: Circular silencer with 50 insulation AS2: Circular silencer with socket-type spigots on both ends BK2: Circular silencer with raised edges at both ends Parts and characteristics Casing Perforated inner tube Absorption aterial
3 Accessories VD2: With lip seals on both ends AS2: Socket-type spigots on both ends BK2: Raised edges at both ends Construction features Circular casing Flexible construction Spigot suitable for circular ducts to EN 1506 or EN Spigot with groove for lip seal Maxiu operating pressure 1000 Pa Max. operating teperature 100 C Materials and surfaces Casing and perforated inner duct ade of aluiniu Lining is ineral wool End pieces ade ABS plastic, flaability to UL 94, V-0 (noinal sizes ) End pieces ade of aluiniu (noinal sizes ) Mineral wool To EN 13501, fire rating class A1, non-cobustible RAL quality ark RAL-GZ 388 Biosoluble and hence hygienically safe according to the Geran TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC Inert to fungal and bacterial growth Standards and guidelines Insertion loss easured according to ISO 7235 Casing air leakage to EN 15727, class D Maintenance Maintenance-free as construction and aterials are not subject to wear
4 TECHNICAL INFORMATION Technical data, Quick sizing, Specification text, Order code TECHNICAL DATA Noinal sizes Operating pressure 1000 Pa ax. Operating teperature 100 C ax. QUICK SIZING The stated differential pressures for circular silencers correspond to the values for sooth pipes. Deviations, if any, are of no practical relevance. For ductwork calculation, if the length of a circular silencer is included in the total length of the ductwork, no extra length ust be added. CF025 (insulation thickness 25 ), insertion loss Centre frequency f [Hz] Noinal size Noinal length Noinal size Noinal length De Hz
5
6 CF050 (insulation thickness 50 ), insertion loss Noinal size Noinal length Centre frequency f [Hz] Noinal size Noinal length De Hz
7
8 CF, differential pressure Noinal size V Nennlänge [] Noinal size 80 V Δpst l/s ³/h Pa
9 <2 <2 < < <2 <2 <2 < < < <2 <2 <2 < <2 < < < SPECIFICATION TEXT Circular silencers for air conditioning systes, flexible construction, available in 8 noinal sizes. Insertion loss easured according to ISO Casing with acoustic and theral insulation. Spigot with groove for lip seal, suitable for circular connecting ducts to EN 1506 or EN
10 Casing air leakage to EN 15727, class D. Special characteristics Insertion loss easured according to ISO 7235 Very flexible and consequently suitable for installation in coplicated duct systes and restricted spaces Absorption aterial is non-cobustible Insulation thickness 25 or 50 Sallest bend radius 3 outer diaeter D₃ Materials and surfaces Casing and perforated inner duct ade of aluiniu Lining is ineral wool End pieces ade ABS plastic, flaability to UL 94, V-0 (noinal sizes ) End pieces ade of aluiniu (noinal sizes ) Mineral wool To EN 13501, fire rating class A1, non-cobustible RAL quality ark RAL-GZ 388 Biosoluble and hence hygienically safe according to the Geran TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC Inert to fungal and bacterial growth Technical data Noinal sizes: 80 to 400 Operating pressure: 1000 Pa ax. Operating teperature: 100 C ax. Sizing data D [] H [] Insulation thickness [] V [³/h] D at 250 Hz [db] e Δp [Pa] st
11 ORDER CODE Order exaple: CF-050/ /VD2 Insulation thickness 50 Noinal size 160 Length 1000 Type of connection Spigot with lip seal on both ends
12 Type Noinal size [] CF Flexible circular silencer Insulation thickness [] Noinal length [] Type of connection No entry: spigot VD2 AS2 BK2 Spigot with lip seal on both ends Socket-type spigots on both ends Raised edges at both ends Variants, Diensions and weight
13 VARIANTS CF Variant Circular silencer for the reduction of noise Spigot CF/.../AS2 Variant Circular silencer for the reduction of noise Socket-type spigots to ake connections to the ducting CF/.../BK2 Variant Circular silencer for the reduction of noise With raised edges to ake detachable connections to the ducting DIMENSIONS AND WEIGHT CF, diensions Noinal size CF-025 CF-050 ØD3 ØD3 ØD ØD
14 CF, lengths Noinal length LN CF L CF/.../AS2 L CF/.../BK2 L L CF, weights CF-025 CF-025 CF-025 CF-025 CF-050 CF-050 CF-050 CF-050 Noinal size kg kg kg kg kg kg kg kg CF CF/.../AS2 Hoe Contacts Iprint Delivery and payent ters Privacy Disclaier TROX GbH
15 Hoepage > Products > Sound attenuators > Circular silencers > Type CF CF/.../BK2 Installation details, Basic inforation and noenclature INSTALLATION DETAILS Installation and coissioning Any installation orientation Installation in ducts outside of closed roos requires sufficient protection against the effects of weather BASIC INFORMATION AND NOMENCLATURE Principal diensions ØD [] Outer diaeter of the spigot ØD₃ [] Outer diaeter of circular silencers L [] Length of attenuator/silencer including spigot (in airflow direction) L₁ [] Length of acoustic cladding and acoustically effective length B [] Attenuator width and duct width (upright splitters) Hoe Contacts Iprint Delivery and payent ters Privacy Disclaier TROX GbH
16 Hoepage > Products > Sound attenuators > Circular silencers > Type CF H [] Attenuator height and duct height (upright splitters) T [] Splitter thickness S [] Airway width n [ ] Nuber of flange screw holes [kg] Weight Noenclature f [Hz] Octave band centre frequency L [db(a)] WA A-weighted sound power level of air-regenerated noise D [db] e Insertion loss V [³/h] and [l/s] Volue flow rate Δp [Pa] st Static differential pressure All sound power levels are based on 1 pw. All values were easured in a TROX lab and to EN ISO Interediate values ay be achieved by interpolation. Hoe Contacts Iprint Delivery and payent ters Privacy Disclaier TROX GbH
17 Hoepage > Products > Sound attenuators > Circular silencers > Type CF Lab easureents exceeding 50 db are indicated as 50 db, in line with coon practice. TROX GbH Online-Services Service-Hotlines Heinrich-Trox-Platz D Neukirchen-Vluyn Tel.: +49 (0) Fax: +49 (0) Order-Status (My TROX NET) TROX Acadey Catalogue Download Your contact partner Online fault report BIM Sales Gerany and technical consulting +49 (0) Contact Technical service +49 (0) Contact Hoe Contacts Iprint Delivery and payent ters Privacy Disclaier TROX GbH
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