Model 48

Models 48D and 48R are multi-spring, single acting, spring opposed, rotary actuators used with Cashco rotary control valves. Regardless of final installed failure action, the actuator is always pressurized on “top” of the traveling diaphragm plate.

Cashco has adopted a convention as follows in identifying its rotary actuators:

“D” = Direct Action = ATC-FO Action
“R” = Reverse Action = ATO-FC Action

The Model 48 actuator is field reversible by arrangement of actuator with respect to valve stem and valve plug/
disc orientation. Some disassembly is required, but no new parts are re quired.

Reference the technical bulletin of the valve body these actuators are unitized with for operating/installation/
selection specifications; i.e. available bench settings, strokes, etc.