Inlet Sizes : 3″ through 48″
Ratings : ANSI Class 150 to 600
Materials : Carbon steel body , Stainless steel
Actuators : Model 96/97 pneumatic rack & pinion Model 34 scotch yoke cylinder
Trim : Double eccentric TFE, RTFE, and flexible metal seals offer Class IV (metal) or Class VI (PTFE / RTFE) shut-off
Inherent Characteristics : Equal Percentage
Description : Low torque, double offset disc improves control performance and reduces seal wear for longer operating cycles and reduced maintenance.
Source : http://www.geoilandgas.com/distributed-gas/production/rotary-control-valves