Butterfly Valves Central DISC Butterfly Wafer Type Lever Operated 25 - 200 Butterfly Valves Central DISC Butterfly, Wafer Type, Gear Operated 100 - 700 Butterfly Valves Central DISC Butterfly Valve, LUG - 150 # H/W Oper. PN 16 / 25 - 80 Butterfly Valves Central DISC Butterfly Valve, LUG - 150 # H/W Oper. PN 16 100 – 300 Butterfly Valves Central DISC Butterfly Valve, LUG - 150 #, Gear Operated PN-16 100 – 700