The Nibco F-918-B is a Class 125 flanged horizontal swing check valve constructed of cast iron with a bronze seat and bronze threading, designed to reliably prevent backflow in a wide range of piping systems. Its robust construction makes it well suited for irrigation, hot and cold water, HVAC, condenser, and chilled water line applications.
The 4" flanged end connections allow for straightforward installation into standard Class 125 flanged pipework, while the swing-type disc design provides low pressure drop and dependable sealing performance in both commercial and industrial settings.