Home » Valves » Butterfly Valves » Cast Iron Butterfly Valves [Series 1000] CAST IRON BUTTERFLY VALVE [SERIES 1000] Resilient seated ductile cast iron (and cast iron) butterfly valve series available in sizes 2″ – 24″ and 26″ – 40″. Butterfly valves are offered in wafer and lug types. A high performance butterfly valve that … Continue reading Cast Iron Butterfly Valves [Series 1000]