Efficient Fluid Control
400 series valves have soft/hard seal ball valve, with various structural forms including fixed soft/hard seal ball valve, three-proof ball valves, fluorine-lined ball valves. With their extensive applicability, there is minimal fluid pressure loss when the valves are fully open, making them suitable for the shut-off and control of liquids, gases, slurries, and other fluids.
Services & Support
The Latest
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HollySys Helps Shaanxi Coal & Chemical Achieve Record-Breaking Grid Connection for Million-Kilowatt Units 5 and 6
2025-05-29 -
HollySys Powers China's First Straddle Monorail APM at Chongqing Jiangbei Airport
2025-05-15 -
Meet the AM5000EX Isolated Safety Barriers — Uncompromising Safety in Every Signal
2025-04-24
