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Ahlsell Products VentilationSilencer

Silencer

White lacquered

Make sure you have good ventilation products! Ahlsell's ventilation range spans duct systems, devices, valves, indoor grills, hoses with accessories, roof hoods, exterior wall grills, ventilation accessories, filters, mounting materials, fans, aggregates, cooker hoods, controls, regulations, fire gas dampers, and flat strip plates.

Circular Silencer BDER-60, FläktGroup

Circular Silencer BDER-60, FläktGroup

Art. no.: 6643377

Fire-rated E60, EI30, EI60 according to type-approval 2525/80.
Description
Straight silencer with 100mm stone wool filling. The silencer consists of a pipe of perforated sheet metal, surrounded by sheet metal end caps and jacket. The space between the pipe and the jacket is filled with sound-absorbing material with fibre cloth to protect against fibre migration. Supplied with dust-proof connectors.

Circular Silencer BDER-30, FläktGroup

Circular Silencer BDER-30, FläktGroup

Art. no.: 6643213

Fire-rated E60, EI30 according to type-approval 2525/80.
Description
Straight silencer with 50mm stone wool filling. The silencer consists of a pipe of perforated sheet metal, surrounded by sheet metal end caps and jacket. The space between the pipe and the jacket is filled with sound-absorbing material with fibre cloth to protect against fibre migration. Supplied with dust-proof connectors.

Circular Silencer NRFB100 with baffle, ETS

Circular Silencer NRFB100 with baffle, ETS

Art. no.: 19055332

Round silencer with 50 mm insulation. The sound absorption material of the NRF silencer consists of mineral wool. The perforated inner tube and outer casing are made of galvanized steel. There is fabric between the inner tube and the insulation to prevent wool particles from the duct system. The products are suitable for use in the corrosivity categories C1 to C3 according to ISO 9223: 2012.

Rectangular Silencer with Circular Conn. CLA-A, Swegon

Rectangular Silencer with Circular Conn. CLA-A, Swegon

Art. no.: 19049731

Compact silencer CLA-A (for circular ducts) is a rectangular silencer with a circular connection that has a low construction height. The new CLA is an industrially designed product adapted to very good sound attenuation and ease of installation. CLA is manufactured as standard in galvanized sheet steel. Connection sockets are fitted with rubber seals. Type approved in tightness class D. Fire class is met by protective distance. CLA-A is type approved (TG SC0478-18) with regard to fire protection class E120. EI30, EI60 and EI120 are achieved provided that the protection distance is met.

Rectangular Silencer with Circular Connection. BDER-70, FläktGroup

Rectangular Silencer with Circular Connection. BDER-70, FläktGroup

Art. no.: 6643765

BDER-70 is a rectangular silencer with circular connections. Suitable as a universal silencer for ventilation systems and in connection with adjustment dampers, especially when you need small silencers with good damping. Has a fixed frame. The inner part of the silencer is designed for optimal damping ability. If the silencer is used in conjunction with an apparatus that measures the airflow, the protective distance for a reliable measurement of the airflow must be determined on a case-by-case basis. Compression of fibers from the cushioning material prevented. Consists of a galvanized steel casing, absorbent material: coated glass wool sheet. Density class D (EN 12237). Protective distance for EI30 at 2.5 kW should be considered during installation.

Circular Silencer TOC50, Grundström

Circular Silencer TOC50, Grundström

Art. no.: 66443213

Grundström TOC is circular silencer with circular connection. They are available with 50mm or 100mm insulation, which are de-capped with fibre fuse and perforated sheet metal that gives a very low pressure drop. TOC is accredited by SP SITAC in density class D and fire technology class E120 / EI30.

Rectangular Silencer with Circular Connection. TOKC, Grundström

Rectangular Silencer with Circular Connection. TOKC, Grundström

Art. no.: 66443766

Grundströms TOKC are rectangular silencers with circular connection and low build height which leaves very good sound attenuation. The insulation is de-capped with fibre fuse and perforated sheet inside which gives a very low pressure drop. TOKC is accredited by SP SITAC in density class D and fire technology class E120/EI30.

Circular Silencer NRF50, ETS

Circular Silencer NRF50, ETS

Art. no.: 19055283

Round silencer with 50 mm insulation. The sound absorption material of the NRF silencer consists of mineral wool. The perforated inner tube and outer casing are made of galvanized steel. There is fabric between the inner tube and the insulation to prevent wool particles from the duct system. The products are suitable for use in the corrosivity categories C1 to C3 according to ISO 9223: 2012.

Rectangular Silencer with Circular Conn. LFAS-L, Bevent Rasch

Rectangular Silencer with Circular Conn. LFAS-L, Bevent Rasch

Art. no.: 6653765

Rectangular low-profile silencer with circular connection for grouting or for installations with limited space. The market's lowest muffler where dimensions 100 - 160 are designed for grouting.
• Density class D • Low construction height

Rectangular Silencer with Circular Conn. CLA-A, Swegon

Rectangular Silencer with Circular Conn. CLA-A, Swegon

Art. no.: 19049733

Compact silencer CLA-B (for circular channels) is a rectangular silencer for connection to circular channels. CLA-B is equipped with an acoustic center beam for improved sound attenuation data. The construction height is as much as 80 mm lower than the corresponding conventional muffler. The sound-absorbing material of dimension 500-800 ISOVER Cleantec® PLUS, is a type-approved insulation material consisting of long-fiber compressed mineral wool. The mineral wool is covered with a microperforated aluminum foil. ISOVER Cleantec® PLUS is type approved for wet cleaning with a plastic wiper or even with a high-pressure cleaner. Of course, it also meets current standards regarding cleansing, fiber suppression, age resistance,
emissions etc. according to type approval number 2706/92. Connection sockets are equipped with a rubber gasket. CLA-B is manufactured as standard in galvanized sheet steel.

Circular Silencer Sordo-A, Swegon

Circular Silencer Sordo-A, Swegon

Art. no.: 19049769

Silencer SORDO-A with 50 mm rock wool is an industrially designed product adapted to very good sound attenuation and ease of installation. SORDO-A is manufactured as standard in galvanized sheet steel.
Connection sockets are fitted with rubber seals and meet tightness class D. SORDO-A is type approved (SC0480-18) with regard to fire protection class E120. EI30, EI60 and EI120 are achieved provided that the protection distance is met.

Circular Silencer NRF50 White lacquered, ETS

Circular Silencer NRF50 White lacquered, ETS

Art. no.: 66673216

Round silencer, NRF50, white lacquered. RAL9003, gloss 40, with 50 mm insulation. The sound absorption material of the NRF muffler consists of mineral wool. The perforated inner tube and outer casing are made of galvanized steel. There is fabric between the inner tube and the insulation to prevent wool particles from the duct system.

Rectangular Silencer with Circular Connection NTF, ETS

Rectangular Silencer with Circular Connection NTF, ETS

Art. no.: 19055291

Round silencer with 50 mm insulation. The sound absorption material of the NRF silencer consists of mineral wool. The perforated inner tube and outer casing are made of galvanized steel. There is fabric between the inner tube and the insulation to prevent wool particles from the duct system. The products are suitable for use in the corrosivity categories C1 to C3 according to ISO 9223: 2012.

Rectangular Silencer with Circular Connection NTF with baffle, ETS

Rectangular Silencer with Circular Connection NTF with baffle, ETS

Art. no.: 19055306

Round silencer with 50 mm insulation. The sound absorption material of the NRF silencer consists of mineral wool. The perforated inner tube and outer casing are made of galvanized steel. There is fabric between the inner tube and the insulation to prevent wool particles from the duct system. The products are suitable for use in the corrosivity categories C1 to C3 according to ISO 9223: 2012.

Circular silencer HCF-BS, Hallströms

Circular silencer HCF-BS, Hallströms

Art. no.: 99432712

HCF-BS is a straight silencer with insulation consisting of 50 mm mineral wool.
Fire resistance class EI60 with safety distance.
Environmentally classified protective fabric that prevents fiber carryover.
Dimensions and tolerances according to standard SS-EN 1506.
The silencers are made of hot-dip galvanized steel sheet according to SS-EN 10346.
Surface coating with Z275 meets corrosion class C3 according to SS-EN ISO 12944-2.
Type approval 0037.
Dimensions 400 and larger are delivered with 2 loose nipples.

Circular silencer HCF-DS, Hallströms

Circular silencer HCF-DS, Hallströms

Art. no.: 9943326

HCF-DS is a straight silencer with insulation consisting of 100 mm mineral wool.
Fire protection class EI60 with safety distance.
Environmentally classified protective fabric that prevents fiber carryover.
Dimensions and tolerances according to standard SS-EN 1506.
The sound traps are made of hot-dip galvanized steel sheet according to SS-EN 10346.
Surface coating with Z275 meets corrosion class C3 according to SS-EN ISO 12944-2.
Type approval 0037.
Dimensions 400 and larger are delivered with 2 loose nipples.

Rectangular silencer with circular connection HFF-AS, Hallströms

Rectangular silencer with circular connection HFF-AS, Hallströms

Art. no.: 9943765

Square silencer HFF-AS with round connection. The silencer's insulation has a protective fabric to prevent the release of fibers. Without inner tube. Insulation made of stone wool.
VENT circular silencers for ventilation systems.
Dimensions and tolerances according to standard SS-EN 1506.
The silencers are made of hot-dip galvanized steel sheet DX51 + Z275MAC according to SS-EN 10346. Surface coating with Z275 meets corrosion class C3 according to SS-EN ISO 12944-2.
Tightness class D according to SS-EN 12237 type approval 1666/78. The system's components have sealing rings made of EPDM rubber.

Rectangular silencer with circular connection NTF White lacquered, ETS

Rectangular silencer with circular connection NTF White lacquered, ETS

Art. no.: 66673316

NTF, white lacquered. RAL9003, gloss 30. Straight low rectangular silencer with round connection end. Suitable as the general silencer for the ventilation system and for connection to control equipment, especially in situations where the silencer should preferably have smaller dimensions and good sound attenuation properties. The sound-absorbing duct elements with good attenuation properties are made of mineral wool (Cleantec-coated). Also available in sizes Ø 400-630 mm, these sizes also include separate absorption elements.

Circular silencer HCF-AS, Hallströms

Circular silencer HCF-AS, Hallströms

Art. no.: 9943113

HCF-AS is a straight silencer with insulation consisting of 50 mm mineral wool.
Fire resistance class EI30 with safety distance.
Environmentally classified protective fabric that prevents fiber carryover.
Dimensions and tolerances according to standard SS-EN 1506.
The silencers are made of hot-dip galvanized steel sheet according to SS-EN 10346.
Surface coating with Z275 meets corrosion class C3 according to SS-EN ISO 12944-2.
Type approval 0037.
Dimensions 400 and larger are delivered with 2 loose nipples.

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Rectangular silencer with circular connection HFF-CS, Hallströms

Rectangular silencer with circular connection HFF-CS, Hallströms

Art. no.: 9943820

Rectangular silencer with eccentrically placed round connection and low construction height. The silencer has a perforated inner tube. The insulation has a protective fabric to prevent the release of fibers.
Insulated all around and suitable for embedding. Insulation made of mineral wool.
Outer casing made of galvanized steel sheet Z275. Inner tube made of perforated, galvanized steel sheet. Mineral wool insulation. Corrosivity class C3.
Tightness class D. Type approval no. 1666/78.

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