In industrial pipeline system, valve is the key equipment to realize flow control. The valve actuator and worm gear box that control the valve action are important parts to ensure the normal operation of the valve. This paper will analyze the working principle and practical application of the valve control device.

Valve actuators usually use pneumatic, hydraulic or electric modes of operation, which use external energy as a driving force to drive the opening and closing of the valve. The automatic control of the actuator realizes the remote control of the valve. The worm gear box is a manually operated device, which transmits the manual power to the valve stably through the worm gear deceleration mechanism to complete the opening and closing of the valve.

The worm gear box can achieve a large speed ratio and torque amplification through the meshing of the worm gear, so it can drive large valve devices. At the same time, the worm gear drive makes the valve operate smoothly and continuously, which is conducive to accurately adjusting the flow rate. Worm gear box is compact and easy to install and use.

Whether it is the actuator or the worm gear box, it is necessary to accurately transfer the power to the opening and closing parts inside the valve to drive the valve to effectively adjust between the fully open and fully closed states. The correct selection of two control devices can realize the automatic control of the valve, and can also carry out local manual adjustment, so that the use of the valve is more comprehensive and flexible.

The operation of the valve control device is directly related to the stable control of the flow of the whole pipeline system. The correct use and maintenance of the control device is an important link to ensure the safe and reliable process.