Air valve unit with measuring fan

HAILAN Air valve unit with measuring fan feature：

1.Air valve unit with measuring fan, the module is generally suitable for central ventilation mode, installed between the exhaust outlet and central ventilation shaft of the building, air flow through the air valve unit, and continuously measuring the ventilation of the building.

2.Air valve unit can also be installed below the chimney fan, real-time monitoring, feedback, control the ventilation volume of the fan in the house.

3.The combination of air valve and measuring fan can achieve precisely monitoring and regulation of air volume, saving energy, reducing heating costs, it will not appear excessive air volume or heat loss, providing the best ventilation environment for livestock and poultry.  

4.The modular design can meet the different configurations requirements and can be individually controlled as an air intake or air outlet.  

5.The air valve actuator with self-reset function can quickly and completely open the air valve to ensure natural ventilation in case of power failure.

6.Using the pulse feedback signal, 0-10V、RS485, the measurement is accurate and reliable.

7.Provide three specifications of products ,18,22,24,32 and 36 inches.