BQ3000/BQ3105 SPORTS series electric actuator can be controlled by three-point floating and modulating. It can adjust the flow of medium, which is widely used in HVAC system.

BQ3300 系列电动执行器可提供三态浮点和比例控制，用于调节介质流量，广泛应用于采暖、通风、空调及楼宇自控等系统。

BQ-7000 series driver is composed of a reversible synchronous motor operation, the valve stem upward or downward to open and close the valve, when the valve fully open or fully closed, resulting in a force to drive the micro switch, power drive, drive to stop working, the drive in receiving the control signal, can open the valveopening is certain, and when there is no signal to stop at any point.

BQ-7300 series of drive by force 1800N to 4000N electric actuator with diameter DN80-DN250 regulating valveself made series of electric control valve; the wide application of automatic control in air conditioning,refrigeration, heating and other building systems, accurate flow control system in the medium, so as to control the temperature, humidity, pressure system the parameters such as the objective.