First, what is a pneumatic stainless steel butterfly valve
Pneumatic stainless steel butterfly valve is a commonly used control valve, which adopts pneumatic actuator as the driving device to achieve the opening and closing of the valve by controlling the switch of the air source.
Stainless steel butterfly valve means that the valve body material is made of stainless steel, which is corrosion-resistant, high temperature-resistant, pressure-resistant and so on.
Pneumatic stainless steel butterfly valve is widely used in petroleum, chemical, metallurgy, electric power, water treatment and other industries.
Second, pneumatic stainless steel butterfly valve structure
Pneumatic stainless steel butterfly valve is mainly composed of valve body, valve stem, valve disc, sealing ring and pneumatic actuator.
Valve body is the main part of the valve, usually made of stainless steel, with excellent corrosion resistance.
Valve stem is connected to the valve disc and pneumatic actuator parts, through the up and down movement of the valve stem to achieve the opening and closing of the valve disc.
The valve disc is the key component of the valve, which can be rotated to control the fluid on and off.
The sealing ring is used for the sealing performance of the valve, usually made of corrosion-resistant materials.
Pneumatic actuator is the driving device of pneumatic stainless steel butterfly valve, by controlling the switch of the gas source to achieve the opening and closing of the valve.
Third, the working principle of pneumatic stainless steel butterfly valve
The working principle of pneumatic stainless steel butterfly valve is to achieve the rotation of the valve disc through the drive of the pneumatic actuator.
When the gas source into the pneumatic actuator, the piston in the pneumatic actuator will be subject to the pressure of the gas source and move forward, so that the valve stem and the valve disc connected to the part of the downward movement, the valve disc and then rotate to open, the fluid can pass.
When the gas source is closed, the piston in the pneumatic actuator will be subjected to the reverse pressure of the fluid on the valve disc and move backward, so that the valve stem and the valve disc connected to the part of the upward movement, the valve disc is then rotated closed, the fluid is cut off.
Fourth, the advantages of pneumatic stainless steel butterfly valve
1. good corrosion resistance: stainless steel butterfly valve is made of stainless steel material, has excellent corrosion resistance, can adapt to a variety of corrosive media working environment.
2. good high temperature resistance: stainless steel butterfly valve has good high temperature resistance, can work properly in high temperature environments.
3. good pressure resistance: stainless steel butterfly valve has high pressure resistance, can withstand large pressure differences.
4. good sealing: stainless steel butterfly valve using sealing ring to valve sealing performance, can effectively prevent fluid leakage.
