Series 700 actuators are pneumatic diaphragm operators that offer spring return in either direct or reverse acting styles, offering fail-open and fail-closed models respectively.

The series 700 actuators may be fitted with a variety of springs to overcome the wide range of forces that may exist on a valve plug. An adjusting mechanism is incorporated into the actuator design to allow for adjustment of the spring pre-compression.

The series 700 actuator is available in 60, 100 and 160 square inches of effective diaphragm area and may accommodate up to 5 inches of travel.

Designed specifically for severe duty service, series 1000 actuators can be used in any application where shock and/or vibration may be encountered. Model 1000 actuators have undergone extensive testing and analysis for seismic and environmental considerations and are suitable for nuclear applications. Series 1000 actuators have undergone extensive testing and analysis for seismic and environmental considerations and are suitable for nuclear applications.

Series 1000 actuators are available with 60, 100, 160, 320 and 400 square inches of effective diaphragm area and may be supplied as either direct or reverse acting.