
Leyon FM UL Ductile Iron Nrs Gate Valve Flanged Grooved Resilient Seated Osy Gate Valve. FM & UL Certified: Certified for fire sprinkler systems and fire fighting water supply lines. OS&Y Visual Indication: Outside Screw & Yoke design provides clear visual status of open or closed. Ductile Iron Construction: Robust ductile iron body ensures durability and high performance. Customizable Coating: Fusion bonded epoxy or painting available upon customer requirements. Wide Size Range: Available in sizes from 2 inches to 72 inches. OEM & ODM Support: Professional R&D team supports full customization from samples or designs. Multiple Connection Types: Offers both flanged and grooved end connections for versatile installation. Long Warranty Period: Comprehensive 3-year warranty covering mechanical defects and parts.