Monday, September 25, 2017

Halton HFB Airflow Management Damper

damper-_halton_ravenscroft_hfbThe Halton HFB is a variable airflow damper and contains an averaging airflow measurement probe, airflow controller and actuator.

Airflow is controlled based on actual flow measurement by changing the damper blade position. The airflow setpoint can be modified between factory-set minimum and maximum settings by, e.g., a room controller with an analogue signal (0...10 or 2...10 VDC). Flow control damper HFB maintains the required airflow independent of duct pressure variation.

The static pressure control damper option maintains the desired.

Halton HFD Airflow Management Damper for Dual Duct Systems

damper-_halton_ravenscroft_hfdThe Halton HFD is control damper for management of variable and constant air flows in a dual duct system.

In the varaible air flow application, the cold and warm air ducts are connected to the mixing box. The cold duct connection size is equal to the nominal size of the  device, and the warm duct connection is one duct size smaller. The mixing box is equipped with two electric airflow controllers.

In the contstant total airflow application the cold and warm air ducts are connected to the mixing box, and both duct connections are of equal size to the nominal size of the unit. The mixing box is equipped with two electric airflow controllers.

Halton UTK and UTT Multi-blade Dampers

damper-_halton_ravenscroft_utt-utkThe Halton UTK dampers are used to shut off, adjust or control airflow in ductwork in applications where damper leakage does not have significant importance. In the closed position the UTK damper leakage class is 1 in accordance with the EN1751  standard.

The Halton UTT dampers are used to shut off or control airflow in ductwork where tightness, thermal insulation and reliability are important. In the closed position the UTT damper leakage class is 4 in accordance with the EN1751 standard.

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