Quick air valve actuatorIt is a high-performance air volume regulation device designed specifically for building automation systems, which uses an electric motor to drive the air valve to quickly open and close, achieving precise control of air flow. Its core advantages lie in fast response, high reliability, and flexible control, which are widely used in fields such as heating, ventilation, air conditioning (HVAC), refrigeration, and industrial production lines. It is based on the principle of electric motor drive, and converts the motor rotation into linear or angular motion of the air valve through mechanical structures such as gears and reducers. When the control system sends electrical signals (such as switch values, analog signals, or digital signals), the motor starts and drives the air valve to complete the action from fully closed to fully open (90 °) within 2-8 seconds.
Quick air valve actuatorIts main functions revolve around "rapid response", "precise control", and "security protection", as follows:
1. Quickly drive the opening and closing or adjusting of the air valve
This is its core function. Compared with ordinary air valve actuators, "fast" is the core feature:
It can drive the air valve from fully closed to fully open, fully open to fully closed, or quickly switch at a specified angle (such as adjusting from 30 ° to 60 °) in a short period of time (usually within a few seconds, such as 1-5 seconds, depending on the model setting).
Suitable for scenarios that require emergency adjustment of airflow, such as quickly closing the fire damper to block smoke during a fire; Quickly switch the ratio of fresh air/return air when there is sudden pollution in the clean room; Quickly adjust the air supply volume during process switching in industrial workshops.
2. Accurately control the opening of the air valve
By receiving control signals (such as 0-10V voltage signals, 4-20mA current signals, pulse signals, or digital signals), the opening angle of the air valve can be precisely controlled to adjust the air volume, wind speed, or airflow direction inside the pipeline
Cooperate with control systems (such as building automation systems BA, PLC) to achieve stepless adjustment of air volume, meeting the airflow requirements of different scenarios (such as adjusting ventilation volume when the number of people in the conference room changes).
Ensure that airflow parameters (such as temperature, humidity, cleanliness) are stable within the set range, and improve environmental control accuracy (such as constant temperature and humidity control in laboratories and hospital ICUs).
3. Receiving and feedback control signals
Signal reception: It can receive command signals from the controller (such as manual switches, sensor feedback signals, central control system commands) to trigger the action of the air valve. For example, when the temperature and humidity sensor detects that the indoor temperature exceeds the standard, the signal is transmitted to the actuator, which drives the air valve to increase the fresh air volume.
Status feedback: Real time status of the air valve (such as current opening, whether it is fully open/closed, and whether there is a fault) is transmitted to the control system through feedback signals (such as switch values and analog values), achieving closed-loop control of "command action status" for remote monitoring and fault diagnosis.
4. Ensure the safe operation of the system
Overload protection: Equipped with an overload protection device, it automatically cuts off power output when the air valve is blocked or the load is too large, avoiding actuator motor burnout or mechanical component damage.
Emergency linkage: In emergency scenarios such as fire and security, it can be linked with the fire control system. For example, after a fire alarm, the relevant area air valves can be quickly closed to prevent the spread of fire, and the smoke exhaust valve can be opened to exhaust smoke and ensure personnel safety.
Self locking function: After the air valve reaches the designated position, the actuator can lock the current state to prevent the air valve from shifting due to fluctuations in air flow pressure, ensuring control stability.
5. Adapt to complex environments and working conditions
Some models have characteristics such as dust prevention, water resistance, high temperature resistance (such as fire damper actuators that need to withstand high temperatures above 280 ℃), corrosion resistance, etc. They can work stably in harsh environments such as industrial workshops, underground garages, and kitchen smoke exhaust.
Supports multiple installation methods (such as direct connection and connecting rod), adapts to different types of air valve structures (such as butterfly valves, louver valves, gate valves), and enhances installation flexibility.