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Ahlsell Products Ventilation Damper Galvanized Circular DampersMeasuring and Control Damper

Measuring and Control Damper

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.

Measuring and Regulating Damper PRA, Halton

Measuring and Regulating Damper PRA, Halton

Art. nr.: 6642818

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

Measuring and Regulating Damper SPI, Systemair

Measuring and Regulating Damper SPI, Systemair

Art. nr.: 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.

Measuring and Regulating Damper ARMS, a-collection

Measuring and Regulating Damper ARMS, a-collection

Art. nr.: 6542800B

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.

Measuring and Control Damper IRIS, FläktGroup

Measuring and Control Damper IRIS, FläktGroup

Art. nr.: 6642871

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.

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Measuring and Regulating Damper ARMS White RAL9003, a-collection

Art. nr.: 6542832

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

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