The AB-QM valve with Danfoss actuator for precise flow control offers high comfort and favourable overall operating costs. The AB-QM is suitable for offices, hotels, hospitals, and buildings where precise temperature control is needed, such as in laboratories and research institutes. A system completed with AB-QM valves does not need subsequent balancing, thus eliminating complicated step-by-step measurements and time-consuming adjustment corrections required with previously used valves. The system with AB-QM operates in a variable flow mode. The exact amount of water needed at any given time flows to the individual appliances. This makes the entire system more economical. The AB-QM valve can be used for all air conditioning applications, as it can have a linear or logarithmic characteristic in conjunction with thermoelectric drives or electromechanical actuators. The control valve, thanks to the integrated differential pressure regulator, always maintains 100% authority, ensuring stable regulation at all times. Its compact design allows installation even in small spaces, such as in fan coil units. No calculations of Kv value or authority are required. Flow is the only parameter needed for valve design. Easy commissioning. Since the AB-QM valve performs two functions – adjustment and regulation – installation costs are halved.