.jpg) Download Additional Information | Worcester 51/52 and 818/828 Series Valves Worcester's Series 51/52 is a standardized line of flanged ball valves, 1/2"-10", with ANSI Class ratings 150 and 300. The combination of elements of this standardization provides a manual or automated valve which exceeds production requirements. Requirements include high cycle rate, pressure integrity, material compatibility, speed of operation, automatic control and high temperature endurance. |