Actual working principle and characteristics of pneumatic regulating valve

Pneumatic control valve adopts dual-guide structure and is equipped with multi-spring actuator. Pneumatic control valve has the advantages of compact structure, light weight, sensitive action, large valve capacity, accurate flow characteristics, convenient disassembly and assembly, etc. Pneumatic regulating valve is widely used to precisely control gas, liquid, steam and other media. Process parameters such as pressure, flow, temperature, and liquid level are kept at given values. It is especially suitable for working situations where the allowable pressure difference is small and the allowable leakage is small. This series of pneumatic control valve products are standard, bellows sealed, jacket insulation and other varieties. The nominal pressure levels of the products are PN10, 16, 40, 64; the valve body diameter ranges from DN20 to 200. Applicable fluid temperature ranges from -200 ℃ ~ + 560 ℃, with various grades within its range. Leakage standards are Class II or IV. Flow characteristics are linear or equal percentage. A wide variety of specifications are available.