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Pneumatic Actuator
(1) Double- acting cylinder type, with scotch yoke construction which enables a moment arm to convert the linear motion of the piston rod into rotary motion. With the scotch yoke construction, torque output characteristics are ideally suited for larger quarter turn valves which require a higher torque at their opening and closing. (2) The air chamber where the piston moves linearly within the cylinder is sealed from the center body which converts the piston linear motion into rotary output with zero air loss. (3) Since output is produced using the compound pressure method of two pistons in the double cylinder type, a balanced, smooth, high torque output actuator is obtained. (4) The output shaft is equipped with an indicator to show to opening of valves. (5) A stop is provided to control the opening and closing position of various valves. The stops enable the opening and closing to be adjusted up to5 degree. (6) A single- acting type mounting a spring case onto one side of the double cylinder. AW series is divided into two model types depending on air supply pressure. (7) Various accessories can be used to meet different requirements of customer.
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