Process Control Valves and Instrumentation Products > Actuator Size 3  


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Actuator Size 3, Actuator Size "3"

Efficiency - with seven interchangeable sizes - longer strokes and higher air pressure capability - Century actuators provide for maximum use of available power.

Note that the No. 0 actuator in the double-acting (air to close-air to open) version will fully stroke a 2-1/2" valve - while the air to spring version will fully stroke a 3" valve. This compares with our nearest competitor's smallest actuator which can fully stroke only a 1-1/4" valve.

Rugged: The high grade - 30,000 lbs. per square inch tensile strength cast iron diaphragm cases - together with the uniquely produced actuator diaphragm and steel diaphragm plates, allow the use of higher operating air pressures, with consequent reduction in the size and cost of the actuator required.

The actuator diaphragm, which is produced and molded under an exclusive process, is batch tested at 125 psig. operating air pressure for 175,000 strokes before the batch is released to the valve assembly department.






Specifications

Outside Diam.
14 7/8 in

Stroke (Air to Air)
3 3/8 in

Stroke (Spring Closed)
3 7/8 in

Stroke (Spring Opened)
3 7/8 in

Max. Air Pressure
110 psig

Air Consumption

 View
280 in³

Effective Area
83 in²

Weight1
98 lb

Weight of Spring and Spring-Case Assembly2
48 lb
1 Weight for Type "C" and Type "H"
2 In compiling the weight of a Type "HRT" (air open-spring closed) valve it is necessary to add the weight of the spring and spring-case assembiy to the bottom-works, actuator and accessory weights.