Abstract: There is disclosed an assembly for connecting an rotary valve and actuator wherein the actuator has a circle of holes in its mounting face and the valve has a circle of bolt holes in its flange adapted to receive bolts intended for make up with the threaded holes of the mounting face of the actuator, but wherein, due to circumstances of the manufacture of the valve and actuator, or otherwise, the circles are of different diameter so as to prevent connection of the valve and actuator in conventional manner. Thus, connection is instead made by an assembly including a spacer plate disposed between a mounting face of the actuator and a flange, and connected by studs made up with threaded holes in the mounting face and bolts extended through the bolt holes in the flange of the valve for make up with threaded holes in the plate.

Abstract: These is disclosed apparatus for monitoring the rotative position of a rotary closure member of a valve, wherein a shaft is rotatably mounted in a housing for connection to a part exterior of the housing which rotates in response to rotation of the closure member, and cam rings are assembled for rotation about the shaft through pinion gears rotatable with the shaft to cause cam surfaces about the rings to engage and activate switches in the housing.

Abstract: There is disclosed apparatus for indicating the opened and closed positions of a rotary closure member of a rotary valve in which a drum rotatable within a housing to be mounted on the valve has "open" and "closed" indicia thereon movable into positions opposite windows in the wall of the housing in response to rotation of the drum in response to rotation of the closure member.