3278 - Pneumatic diaphragm rotary actuator

The Type 3278 pneumatic rolling diaphragm actuator is designed for all industrial applications. This actuator is a rotary motion device ideal for all types of rotary valves. The torque output of the actuator depends on the actuator area, pneumatic supply pressure, spring stiffness, distance traveled, initial compression of the spring, number of springs internal to the actuator, etc.

• Size : 160 and 320 cm²
• Max. rotation: 90°
• Max torque: 730 Nm
• Options: Reversable fail action, travel stops