Integral metal hard seal butterfly valve Integral metal hard seal butterfly valve is mainly used in high, medium and low pressure, high temperature and low temperature pipelines to cut off and regulate. Integral metal hard seal butterfly valve is used in petroleum, chemical, metallurgy, power and other industries. Main features: 1. Compact structure, small size, light weight, flexible opening and closing. 2. Three eccentric structure is adopted, and the sealing performance is reliable after optimized design

The selection of stainless steel pneumatic butterfly valve depends on the specifications
As a flexible pressure resistant pipe fitting, stainless steel pneumatic butterfly valve is used in the liquid escort system to compensate for mutual displacement of pipes, machines and equipment connection ends and absorb vibration energy. It has many characteristics such as good flexibility, light weight, corrosion resistance, fatigue resistance, and temperature resistance, and can play a role in vibration reduction and sound attenuation. It is often used in signal tube of automation instrument and wire maintenance tube of automation instrument; Fine optical ruler line, industrial sensor, electronic equipment line maintenance tube; Safety protection of electrical circuit, protection of thermal instrument capillary and internal support of hollow high-voltage optical cable.
What specifications should be considered when selecting stainless steel pneumatic butterfly valves? Let's take a look at them together:
1. The temperature shall be selected according to the ambient temperature when the hose is working. In case of high temperature, it is necessary to confirm the pressure after temperature correction according to the temperature correction coefficient of working pressure under high temperature of pneumatic butterfly valve, so as to ensure the correct pressure level is selected. 2. When selecting the pressure, you can check the nominal diameter and pressure gauge of the corrugated pneumatic butterfly valve according to the actual working pressure of the hose, and then decide whether to use the stainless steel mesh sleeve type.
3. The size shall be based on the diameter of the size hose, the joint type, the size of the pneumatic butterfly valve, and the length of the hose.
4. The material of each part of the hose shall be determined according to the chemical properties of the material medium to be recommended in the hose and the corrosion resistance of the hose material.
5. The status is based on the status of the hose when it is used, with reference to the correct application and installation method of the pneumatic butterfly valve and the optimal length of the hose for settlement compensation.