Fire Sprinkler Ductile Iron UL FM Approved 2"-12" Grooved Signal Butterfly Valve for Fire Protection Grooved Custom Butterfly Valve Fitting for Fire Fighting

Fire Sprinkler Ductile Iron UL FM Approved 2"-12" Grooved Signal Butterfly Valve for Fire Protection Grooved Custom Butterfly Valve Fitting for Fire Fighting. UL FM Approved: Approved for fire protection applications with UL and FM certification. Wide Size Range: Available in sizes from 2 inches to 24 inches (DN50-DN600). Diverse Material Options: Constructed from Cast Iron, Ductile Iron, Steel, and Aluminium Bronze. Water Hammer Prevention: Spring-loaded wafer design minimizes water hammer effects. Compact Installation: Shorter length compared to other check valves, ideal for limited spaces. Customization Available: Offers customization from samples, designs, and minor modifications. ISO 9001 Certified: Manufacturing process certified to international ISO-9001 quality standards.