Quarter-turn actuators are used to operate ball valve, plug valve or butterfly valve, damper valve, louver valve and any quarter-turn or part-turn device like: flue cut-off gate, boiler, primary and secondary wind, boiler's side wind, air preheater inlet and outlet damper regulator, etc.Protection Grade:lP67.
Industrial grade actuator
Compact structure, large output torque
Self-locking gear train maintains valve position when actuator is de-energized
Very good vibration resistance
Very easy setup - no specific tools required
Adjustable mechanical travel stop to prevent overtravel
Removable drive sleeve for easy machining
All actuators come standard with emergency handwheel and mechanical position indicator
Control method
•On-off type:
On-off quarter turn actuators are designed to fully open or close the valve an average of 20 to 30 times per day (up to 360 actuations per hour at peak)
• Modulating type:
Using a modulating actuator, the valve can be actuated to intermediate positions an average of 360 times per day (1200 actuations per hour at peak) with an accuracy better than 2%. For modulating actuators for higher loads and precision.
