Controls the valve is warm electrically operated is passing the air conditioning uniform temperature control domain warmly the model application. The controller has PI, the PID adjustment function, the control is precise, the multi-loop control, the function is diverse, may realize the rate of fluid flow, the pressure, the differential pressure, the temperature, the humidity, the enthalpy value and the air quality control. The actuator has the electrically operated mechanical type and the electrically operated hydraulic pressure type, has manual and the automatic control function, the adjustment is keen, shuts off the strength to be big, discharge characteristic adjustable (percentages and so on linearity). The electrically operated hydraulic pressure type actuator belt power failure automatic reset protection function, may receive 0-10V or the 4-20MA signal and has the valve position feedback function. The valve chest is the current capacity regulating valve, is suitable freezes the water, the low pressure