The ZJHP and ZJHN series pneumatic diaphragm globe double-seat control valves feature a double-guided structure and are equipped with multi-spring actuators. They offer advantages such as compact structure, light weight, sensitive operation, large valve capacity, precise flow characteristics, and easy disassembly. They are widely used for precise control of process parameters like pressure, flow, temperature, and liquid level for gases, liquids, steam, and other media, keeping them at set values. They are particularly suitable for applications with large pressure differentials, where higher leakage is allowable, and for media that are not very clean.

This product series includes standard type, bellows seal type, jacket insulation type, and other varieties. Nominal pressure ratings are PN 16, 40, and 64. The valve body diameter range is DN 25~400. Applicable fluid temperatures cover multiple ranges from -250°C to +560°C. Leakage standards are Class III and Class IV. Flow characteristics are linear or equal percentage. A wide variety of models and specifications are available for selection.