JHN pneumatic diaphragm double-seat adjusting valve, use double No. guide, equipped with multi-spring actuator. Impact structure, light weight, flexible action, large capacity, precise flow characteristics, convenient assembly. Widely used in accurately controlling processing parameters of air, liquid, stem, like pressure, flow, temperature, liquid level.

This product contains standard type, bellows sealing, jacket insulation. Nominal pressure: PN16、40、64; diameter of valve body: DN25～400; fluid temperature: -250℃～+560℃. Leakage standard: Ⅲ level and Ⅳ level. Flow characteristics: linear or percentage