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Danfoss Balancing Valves
The AB-QM can be used seperately as an automatic flow limiter valve or as a combined flow limiter and control valve when fitted with an actuator. In addition, the setting is extremely user friendly and reliable, making the AB-QM maintenance free.
The AB-QM valve is the obvious choice for balancing and controlling terminal units such as fan-coils, chilled ceilings and air handling units. For the Commissioning Engineer it is straight forward to set the maximum designed flow - just turn the presetting scale at the desired flow. A built-in diaphragm then maintains a constant low differential pressure across the setting cone on the AB-QM. This ensures that the maximum set flow is not exceeded.
Upgrading the valve
By fitting the AB-QM valve with one of four different types of Danfoss actuators, the AB-QM valve is upgraded to a control valve with full authority supplying both temperature control and flow balancing in one valve. As a result, the AB-QM can be used in all cooling and heating applications.
Due to the low differential pressure across the setting cone it is possible to use small actuators with a low closing force.
AB-QM Pressure Independent Balancing Valve
The AB-QM can be used seperately as an automatic flow limiter valve or as a combined flow limiter and control valve when fitted with an actuator. In addition, the setting is extremely user friendly and reliable, making the AB-QM maintenance free.
