Butterfly valve [Figure 8-2 (g)] The baffle controls the flow of the fluid with the rotation of the shaft. It consists of valve body, baffle, baffle shaft and shaft seal and other components. Its structure is simple, small size, light weight, low cost, large flow capacity, especially for low pressure, large diameter, large flow of gas and suspended fluid with the occasion, but the leakage is larger. Its traffic characteristics in the corner reaches 70%. Before and after the percentage of similar characteristics, 70 after the work of instability, the characteristics are not good, so the butterfly valve is usually in the 0 ° ~ 70 ° km range to use. Butterfly valve not only in the oil, gas, chemicals, water treatment and other general industry is widely used, but also used in thermal power plant cooling water system.
Actuator butterfly valve
- Mar 20, 2017 -