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Ahlsell Products VentilationDamper

Damper

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.

Products (23)

Measuring and Regulating Damper PRA, Halton

Measuring and Regulating Damper PRA, Halton

Art. no.: 6642814

PRA is a cone-shaped iris damper and has manual adjustment with knob. The adjustment damper contains an adjustable cone and measuring socket for measuring the pressure difference in the air flow. The measuring damper housing and the cone-shaped iris blades are made of galvanized steel. The air flow calculation is based on measuring the pressure difference caused by the air flow over the damper cone. The adjustment damper is provided with an indicator and marking for the adjustment position which is used during cleaning. The installation direction of the damper must correspond to the air flow direction. The air flow direction is marked with an arrow on the housing. The height refers to the slider and is added to the diameter of the damper. The density class refers to the housing. Temperature range -30° C to +70° C

Shut-off Damper HISC, Hallström

Shut-off Damper HISC, Hallström

Art. no.: 9942422

The HISC damper is intended for use in systems with circular ducts for shutting off the airflow. VENT damper HISC for ventilation systems.
Dimensions and tolerances according to standard SS-EN 1506. The dampers 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. The dampers meet tightness class 3 over the closed blade and tightness class C on the housing according to SS-EN 1751:2014.
The damper is equipped with a square axle dim 8mm (100-315) and dim 15mm from 400 and up.
The system's components have sealing rings made of EPDM rubber.
Type approval 1666/78

Shut-off Damper with Motor Shelf KRTS-4, ETS

Shut-off Damper with Motor Shelf KRTS-4, ETS

Art. no.: 66642581

Damper with motor shelf for regulating the air flow in round duct systems. KRTS-4 has density class C on housing and density class 4 on shut-off according to EVS-EN 1751: 2001. Made of galvanized sheet steel and equipped with rubber seals on connections. For manual adjustment of air flows, handles are available as accessories. For automatic adjustment, Belimo motors are available in various designs. Damper shaft 6x6mm.

VAV-Damper EMSS, FläktGroup

VAV-Damper EMSS, FläktGroup

Art. no.: 19057779

Damper and Silencer Inno for Circular Ducts, Jeven

Damper and Silencer Inno for Circular Ducts, Jeven

Art. no.: 6699901

Inno is a damper for circular ducts. It consists entirely of soft elastic foam plastic with good sound reduction properties. The damper has a number of oval openings provided with extendable plugs.
The pressure drop across the damper is controlled by varying the number of open holes. The special material and hole design also provide low noise relief even with high pressure drops.
Inno is equipped with a measuring socket for quick adjustment.

Backdraft Damper, a-collection

Backdraft Damper, a-collection

Art. no.: 6526107

For connection to circular ducts. Made of galvanised steel plate. The two discs in the jaw damper are spring-loaded, which means that the damper can be mounted in the direction of your choice.

Balancing Damper HIS, Hallström

Balancing Damper HIS, Hallström

Art. no.: 9942401

The balancing damper HIS is intended for use in systems with circular ducts. VENT damper HISC for ventilation systems.
Dimensions and tolerances according to standard SS-EN 1506. The dampers 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. The dampers meet tightness class 3 over the closed blade and tightness class C on the housing according to SS-EN 1751:2014.
The damper is equipped with a square axle dimension 8mm (100-315) and dimension 15mm from 400 and up.
The system's components have sealing rings made of EPDM rubber.
Type approval 1666/78

Art. no.: 6631113

Reversing damper ABC-BS for connection to circular channel. Made of galvanized sheet steel.

CAV Damper Notus-R, Systemair

CAV Damper Notus-R, Systemair

Art. no.: 19047630

Manual constant flow device NOTUS-R.

Shut-off damper ABC-TS3, ABC Vent

Shut-off damper ABC-TS3, ABC Vent

Art. no.: 66542416

Throttle damper, prepared for 50mm insulation and with motor bracket and hand-switch 0 to 90 degrees. Approved for density class 3. Galvanised design

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Art. no.: 6542834

This damper of type IRIS is a precision device for controlling and adjusting air flow in circular ducts. Each damper is individually calibrated to provide the best measurement results. Airflow is obtained by measuring the pressure drop on the diffuser’s fixed measuring nipples and reading the corresponding airflow from the diagram.
Thanks to the central throttling of airflow in the diffuser, the air stream in the duct is even, and the noise level very low.
Can be opened 100%, so it is perfect for installation in ducts that require cleaning.
Made of galvanised sheet steel and provided with adjustment scale and adapters. Conforms to density class C.
White lacquered in RAL9003.

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Control Damper IRIS, FläktGroup

Measuring and Control Damper IRIS, FläktGroup

Art. no.: 6642875

IRIS is a damper intended for air flow measurement and control. IRIS consists of control discs, adjusting nut or handle (size 80), and adjustment scale plus manometer connections and body. The connection sockets are fitted with rubber seals made of EPDM material. The damper's body and control discs are made of hot-dip galvanized sheet steel, polyacetal control unit and the measuring nipple made of TRP plastic. Delivered without individual packaging and without adjustment key. Meets density class C. The air flow at 35 dB (A) is specified at 50 Pa.

VAV-Damper React V, circular, Swegon

VAV-Damper React V, circular, Swegon

Art. no.: 19050958

Variable flow or constant flow control. Quick reading via the controller display. Quick setting of parameters. Analog control or Modbus control. Can be easily insulated against condensation in duct systems. Variants: Circular connection: Ø100-630 mm
REACT V GMB - Modbus and analog control (Gruner)

Measuring and Regulating Damper ARMS, a-collection

Measuring and Regulating Damper ARMS, a-collection

Art. no.: 6542802

This damper of type IRIS is a precision device for controlling and adjusting air flow in circular ducts. Each damper is individually calibrated to provide the best measurement results. Airflow is obtained by measuring the pressure drop on the diffuser’s fixed measuring nipples and reading the corresponding airflow from the diagram.
Thanks to the central throttling of airflow in the diffuser, the air stream in the duct is even, and the noise level very low.
Can be opened 100%, so it is perfect for installation in ducts that require cleaning.
Made of galvanised sheet steel and provided with adjustment scale and adapters. Conforms to density class C.

Hand Adjustment for Comfort Damper ABC-SFK, ABC Vent

Hand Adjustment for Comfort Damper ABC-SFK, ABC Vent

Art. no.: 6530431

Hand adjustment for Air conditioning damper ABC–SFK.

Shut-off damper PTS/A, Halton

Shut-off damper PTS/A, Halton

Art. no.: 6642811

Halton PTS/A is a shut-off damper in tightness class 4 according to the standard EN 1751. It has rubber gaskets that guarantee low leakage flow when the damper is closed. PTS/A is available with manual control knob or with electric actuator for on / off or modulating control using a 0-10 VDC control signal. THIS IS THE MANUAL VARIANT. Normally, electric actuators are installed at the factory, but can also be mounted on site using a mounting kit. The mounting kit is an optional accessory that includes a motor shelf and a shaft extension for universal attachment of the actuator. The actuator and its bracket can be easily mounted using standard hand tools. The height refers to the slider and is added to the diameter of the damper. The density class applies to both casing and shut-off. The air flow is stated between qmin (1 m/s duct speed) and qmax (6 m/s duct speed).

Hand Control for Damper, Bevent Rasch

Hand Control for Damper, Bevent Rasch

Art. no.: 19050906

Hand control for damper

Measuring and Regulating Damper SPI, Systemair

Measuring and Regulating Damper SPI, Systemair

Art. no.: 6612802

An iris damper for flow regulation in round ducts. Used for both supply air and exhaust. The iris damper is equipped with controls and measuring nipples for flow adjustment.
For more information, see www.ekovent.se.

Hand Control, ETS

Hand Control, ETS

Art. no.: 19057024

Adjustment Damper KROS, manual, ETS

Adjustment Damper KROS, manual, ETS

Art. no.: 66642402

Damper for regulating the air flow in round duct systems. Stepless adjustable setting. Density class D according to EN 1751. Made of galvanized sheet steel. Equipped with EPDM rubber gaskets on the connections. The length includes connections.

Shut-off Damper HISC-L with Motor Shelf, Hallström

Shut-off Damper HISC-L with Motor Shelf, Hallström

Art. no.: 9942581

The HISC-L damper with motor shelf for regulating airflow in round duct systems. VENT damper HISC for ventilation systems.
Dimensions and tolerances according to standard SS-EN 1506. The dampers 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. The dampers meet tightness class 3 over the closed blade and tightness class C on the housing according to SS-EN 1751:2014.
Two ball-bearing damper shafts for smooth and friction-free operation (Ø100 and Ø125 one shaft).
Round damper shaft Ø12 mm.
The system's components have sealing rings made of EPDM rubber.
Type approval 1666/78

Shut-off Damper HISC-L with Motor Shelf, Hallström

Motor shelf and extension shaft for damper type HISC, Hallströms

Motor shelf and extension shaft for damper type HISC, Hallströms

Art. no.: 9942470

Loose motor shelf for retrofitting a motor. Screws onto the existing damper shelf.
Purchase the Axel & screw adapter 80-315 for motor control.

Large dimensions (LxW) mm: 260x80 mm.
Small dimensions (LxW) mm: 150x80 mm.
Axel & screw adapter dimensions: 12x12x1.5 mm. Length: 120 mm.

Motor shelf and extension shaft for damper type HISC, Hallströms

Damper and silencer HLLF for circular ducts, Hallströms

Damper and silencer HLLF for circular ducts, Hallströms

Art. no.: 9942460

Sound attenuator that prevents cross-talk between different rooms. Flexible with 3 baffles. Works equally well for installation in bends or straight ducts.

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