
Pneumatic Chlorine Service Hard Seal Butterfly Valve with Flanged Design for Water Disinfection. Bidirectional Zero-Leakage Sealing: Precision-lapped metal hard-seal structure ensures zero leakage under high pressure and temperature. Harsh Condition Adaptability: Resists high temperature, high pressure, strong corrosion, and media with particles effectively. Energy Efficient Design: Streamlined disc minimizes flow resistance, reducing system pressure loss and energy consumption. Easy Maintenance & Low Lifecycle Cost: Replaceable sealing pairs allow maintenance without extensive pipeline disassembly. Robust Construction: High-strength precision-cast materials offer excellent impact and fatigue resistance. Broad Industry Applicability: Suitable for petroleum, chemical, power, metallurgy, and wastewater treatment industries. Customizable Colors: Over 30 color options available with provided color card for selection. OEM and ODM Support: Full customization, minor customization, and flexible customization services available.