This document provides information on ISO 5211 pneumatic rotary actuator operated investment casting ball valves. It summarizes that the valves are available in sizes from 1/2" to 14" with various end connection options. The valves use rack and pinion actuators that can be double acting or spring return single acting. Technical specifications are provided for the valve body materials, ball and stem materials, seat packings, and testing pressures for the actuators and valves. Dimensions and weights are listed for each valve size.