PISTON 
AND SPRING

ACTUATOR

ValtekSul's L Series Cylinder and Spring Linear Actuators are characterized by their unmatched advantages of actuation power, firm operation, and control precision, dynamic positioning operation and great pneumatic rigidity, which allows to operate with high differential pressures, in conditions of low flow when the control valve plug is positioned close to the closing stroke. The positioner provides air to both sides of the piston, obtaining precise movement together with a high frequency response.

The RA Series return spring and piston rotary actuator combines high torque and pneumatic rigidity with excellent control capability.
These features are integrated in a single light, robust and compact assembly that makes it the ideal choice for the operation of rotary valves.