
Hollysys Zzvp Self-Operated Valve Differencial Pressure/Micro-Pressure Regulator. No External Energy Required: Automatically adjusts pressure difference using media pressure without external power source. Wide Material Selection: Available in cast steel, cast stainless steel, low-temperature, and high-alloy steel. High Sensitivity Actuator: Capable of sensing and responding to extremely small pressure changes instantly. Adjustment Without Interruption: Setting value can be adjusted conveniently without stopping the manufacturing process. Customized Dimensions: Nominal diameter customizable from DN20 to DN150 and NPS 3/4 to 6 inches. OEM and ODM Services: Offers flexible customization, full customization, and minor customization options. Low Leakage Rate: Achieves Class VI leakage standards with hard or soft valve elements.