Fisher® 1077 manual-only handwheel actuator is for use with rotary-shaft valves such as the 9500 butterfly valve; 8532, 8560, and 8580 eccentric disc valves; V150, V200 and V300 Vee-Ball™ valves; V250 valves; and CV500 and V500 valves. In this actuator, torque is transmitted from the handwheel through the handwheel input shaft to a worm and drive sleeve gear (sector) with splined bore. The worm and drive sleeve gear multiply the torque and transmit it to a splined valve shaft or splined stub shaft. The size 10-KE:6 actuator additionally has a spur gear reduction drive for increased torque capability.
Features & Benefits
Easy to Install and Maintain—Splined valve shaft mates directly with the drive gear sleeve, reducing the number of parts required and simplifying installation and maintenance.
Easy to Operate—Handwheel rotation direction required to open the valve disc or ball is marked on the handwheel; the rotation indicator is marked in bold print at the open and closed positions and with bold incremental lines to indicate the valve disc or ball position.
Consistency of Operation—When installed according to instructions, clockwise handwheel rotation closes the valve in all applications.
Accurate Valve Disc or Ball Positioning—Travel stops can be adjusted and locked in place to provide accurate disc or ball positioning at closed (0-degree) and open (90-degree) positions. Travel stops for 60-degree operation may be used to establish a disc or ball closing stop at any angle between 0 and 30 degrees and/or to establish a disc or ball opening stop at any angle between 60 and 90 degrees. This option is available on sizes 2-KE and 7-KE as a set screw change. For sizes 0-KE, 6-KE, 9-KE, and 10-KE:6, a different actuator is required when changing from 90-degree to 60-degree ball rotation
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