AD / AS SERIES
For butterfly and ball valves from DN 50 to DN 300.
Two versions : double effect and simple effect (retracting spring).
Small aluminium reducer provided with two pistons with central-pinion rack system
For butterfly and ball valves
Rack, double effect actuators with torque transmission by means of scotch-yoke system.
Torque of up to
- For valves with a linear movement shaft ( gate, globe, membrane valves.)
- The standard connection between the valve and the actuator allows on the one hand to access the valve packing gland to be adjusted or regulated and on the other hand to incorporate the union between the valve shaft and the actuator shaft.
- Cylinders from 60 to 600 mm diameters.
- It is the simple effect version of Model ACMA 380. In case of pressure failure, the cylinder opens and closes the valve (according to the actuator type) by means of a spring.
Cylinders from 80 to 600 mm diameters