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Ductile Iron/Stainless Steel Quarter-turn
Double Acting and Spring Return Actuators
Output Torques to 238,000 lb.in. (26,984 Nm)

General Application
Designed for 'on-off' or modulating control of any quarter-turn ball, butterfly, rotary plug or damper style valve applications. To be used in chemical process, food & beverage, iron & steel, off-shore marine, pharmaceutical, power, oil & gas, pulp & paper, and textile industries.

Product Brochure

• Ductile iron housing, piston, and end caps provide long product life with durable, cost effective operation.
• Cylinders of 316 stainless steel provide unrivaled corrosion resistance.
• Output shaft made of high strength alloy steel transmits torque without fatigue.
• Sintered bronze bushings or Teflon^® composite on output shaft eliminate side loading of valve stem to maximize stem packing performance.
• Chrome-plated steel piston rod provides strength and corrosion resistance for enduring high cycle applications.
• Sintered bronze piston rod bushings provide low-friction support and precise alignment of the piston rod to increase efficiency, reduce maintenance, and extend actuator life.
• Heat-treated stainless steel thrust pin and rollers transfer piston force to 17-4PH stainless steel yoke by rolling to reduce friction, for longer life and more efficient torque transmission.
• Teflon^® guide bands ensure low friction piston guidance during operation to protect cylinder walls from potential scoring and extend seal performance with a continuous cylinder wiping operation.
• Bi-directional travel stops provide accurate valve rotation adjustment.
• ISO 5211 mounting pattern promotes easier valve adaption by utilizing internationally recognized mounting patterns.
• Drive slot on output shaft enables accessory-driven components to maintain a compact, low profile assembly.
• Tectyl-coated springs can be disarmed without special tools to safely and easily disassemble the actuator in the field, reducing down-time and providing a 'man-safe' spring.
• Removable housing cover provides effortless access for internal inspection.