Ductile Iron Pipe Coupling Rigid 1-1/2" Rigid Couplings for Fire Fighting System

Ductile Iron Pipe Coupling Rigid 1-1/2" Rigid Couplings for Fire Fighting System. FM Approved and UL Listed: All major product lines meet stringent international safety standards with FM and UL certifications. Customization Available: We provide customized services, solutions, and products according to customer drawings and requirements. Wide Size Range: Available sizes range from 1 inch to 24 inches to suit various pipeline system needs. High Tensile Strength: Ductile iron material ensures high tensile strength of 350MPA for reliable performance. Multiple Surface Treatments: Options include Painted, Electroplated, Black, Epoxy, and Hot-dip Galvanized finishes. Fast Response Time: We guarantee a reply within 2 hours after receiving inquiries during working days. Proven Global Projects: Products installed in landmark projects like Beijing Daxing Airport and Riyadh Hospital. Large Production Capacity: Annual production capacity exceeds 60,000 tons with advanced automated equipment.