Pneumatic sanitary level control valves are suitable for regulating various physical quantities such as pressure, temperature, and flow, such as food, pharmaceuticals, cosmetics, clean steam, alcohol, beverages, and biochemical industrial process control applications. It has the advantages of compact structure, easy installation and disassembly, and high adjustment accuracy, especially in terms of small pressure drop loss, large flow rate, wide adjustable range, and high flow accuracy, fully complying with the IEC534-1978 standard. The valve leakage meets the ANSIB16.104 standard, and the regulating valve is equipped with different multi spring actuators, resulting in a large output force. The angular design ensures valve self discharge, standard electronic polishing, smooth surface ensures cleanliness, no media accumulation areas, and does not generate potential pollution. Quick disassembly and assembly of valve body and valve cap, making valve opening and maintenance quick and easy, and shortening process downtime.