Oil & Gas Refineries: Used to connect high-pressure process lines where frequent maintenance and safety inspections are required. Water Treatment Plants: Employed in large-scale pump stations to join heavy-duty suction and discharge manifolds. Pneumatic Systems: Acts as a primary mounting interface (Front/Rear Flange) for large-bore air cylinders in factory automation. Chemical Processing: Utilized in stainless steel variants to provide high corrosion resistance when transporting reactive fluids. HVAC & Firefighting: Integrated into building pump sets to connect main water lines to pressure-boosting assemblies.