BUTTERFLY VALVES Offset Butterfly Valve Series 4 Triple Offset Series 44-49 High Performance Double Offset Series 40/41 Split Body Lined Series 42/43 Lined Series 50/52 Resilient Seated Series 51/53 Large Diameter Resilient Seated Series 5C/5D Split Body Resilient Seated Series 55 Double Flanged Double Offset Resilient Seated