Ductile Iron/Stainless Steel Quarter-turn Spring Return and Double Acting Actuators
Output Torques to 238,000 lb.in.
Features and Benefits: -
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 sealed needle bearings 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 action
Bi-directional travel stops provide accurate valve rotation adjustment
ISO 5211 mounting pattern promotes easier valve adaption by utilizing internationally recognized standards
Namur drive slot on output shaft enables accessory-driven components to maintain a compact, low profile assembly and eliminates the need for couplings
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
General Application: -
Designed for ‘on-off’ or modulating control of any quarter-turn ball, butterfly, rotary plug or damper style valve application.
Technical Data Supply pressure : 40 to 160 psig (see torque charts)
Supply medium : Air or any gas compatible with materials of construction
Temperature rating
Standard range : -20°F to 210°F
Optional range : -65°F to 300°F
Angular rotation : 90 degrees ± 8 degrees
