The ZJHPF46 Pneumatic Fluoroplastic-Lined Control Valve primarily consists of a multi-spring pneumatic diaphragm actuator and a corrosion-resistant straight-through single-seat valve. Specifically designed for pipelines or piping systems handling corrosive and permeable media in the chemical industry, it features excellent sealing performance and minimal leakage. All valve components in contact with the medium are manufactured using high-temperature compression molding or high-pressure injection molding techniques. The fully lined corrosion-resistant and aging-resistant fluoroplastic linings—FEP (F46), PFA, Po, or other lining materials. An optional PTFE bellows seal is available, enabling this control valve to be widely applied in chlor-alkali, chemical, petroleum, metallurgical, pharmaceutical, power plant, and other industries. It achieves process control of highly corrosive media such as wet chlorine gas, hydrochloric acid, strong alkalis, toxic substances, and hazardous materials