Various valve control methods

 

Various valve control methods, each have their unique working principle, characteristics, and application range. The following are several common valve control methods, according to the requirements of a clear induction and points indicated:

 

1. Manual control mode： Through manual operation of the valve handle, the hand wheel, or the hand wheel, the opening of the valve opening changes, to control the flow of the fluid.

Feature：

Simple in structure

Low cost

Intuitive operation

The operation is tedious

 Slow response speed

The cost is higher

Maintain complex

 

Application scope: mainly used in small, simple industrial control systems, such as water supply, drainage, HVAC, etc.

 

2. Electric power control mode： Receiving control signals through the electric actuator to drive the valve stem or valve plate to change the valve opening to achieve fluid control.

Feature：

The response speed is fast

High control accuracy

Easy operation

 

Application scope: it is mainly used in the industrial control system that needs rapid response and accurate control, such as chemical industry, petroleum, electric power, etc.

 

3. Pneumatic control mode： Receiving the gas signal through the pneumatic actuator, drives the valve stem or valve plate movement, thus changing the opening of the valve, and realizing the control of the fluid.

 

 

Feature：

Simple in structure

Low cost

Convenient maintenance

The response speed is slow

The control accuracy is low

 

Application scope: mainly used in industrial control systems with high cost and maintenance requirements, such as steel, cement, paper making, etc.

 

4. Intelligent control mode

 

The Wi-Fi control mode： Wi-Fi is a widely used wireless network technology characterized by signal stability, fast speed, and wide coverage. In the valve intelligent control, by connecting the valve controller to the Wi-Fi network, users can remotely access and control the valve through intelligent terminals such as mobile phones and computers.

 

4G control mode：4G is a mobile communication technology with high-speed data transmission and extensive network coverage capabilities. In the valve intelligent control, the remote wireless communication and control are realized by integrating the valve controller with the 4G module.

 

Bluetooth control： Bluetooth is a short-distance wireless communication technology, with low power consumption, low cost, easy integration, and other characteristics. In the valve intelligent control, the mobile phone or intelligent terminal is connected to the valve controller through Bluetooth technology to realize close wireless control.

 

Wireless communication technology： Wireless communication technology has the characteristics of low power consumption, long distance communication, and ad hoc network. In valve intelligent control, these technologies can build low-cost wireless sensor networks to realize remote monitoring and control of valves.