Double-acting and spring return pneumatic quarter-turn actuators for on-off and modulating control of valves in heavy duty service. Models available for output torques to 3,700 Nm
FEATURES • Totally enclosed. weatherproof housing in high strength ductile iron or carbon steel, suitable for use in hostile environments • Constant output torque throughout the 900 stroke. • Adjustable bronze sliding block ensures low transverse forces • Minimal friction nitrided rack • Precise angular stroke adjustment between goo and 1000 • Elect,-oless nickel plated polished cylinder for corrosion resistance and minimal friction • Low hysteresis and high sensitivity floating type piston seals prevent sticking problems. • RPS spring module is fully encapsulated, ensuring personnel safety and simplifying assembly. • RPS mountable as spring to close or spring to open without modification. • Lever or jackscrew manual override. • Extensive range of accessories available • Special coatings for offshore or corrosive environments.