VCTDS-02694-US FeatureS • Totally enclosed, weatherproof housing in fabricated carbon steel for maximum strength. • Guide bar resists transverse loads and supports the piston rod. • Hard chromium plated alloy steel material guarantees corrosion protection and minimal friction. • PTFE-impregnated bronze or sintered bronze bushings provide minimal friction and extended service life. • Scotch yoke design with canted or symmetric torque arm allows close working to distinctive valve torque profiles. • External travel stops for precise angular stroke adjustment between 82° and 98°. • Electroless nickel plated and polished cylinder provides maximum corrosion resistance and reduces friction. • Floating type piston seals provide low hysteresis and high sensitivity, preventing sticking problems. • ALGAS spring return pack incorporates up to four springs, fully encapsulated in a factory welded cartridge ensuring personnel safety and simplifying assembly. • ALGAS spring action can be changed easily in the field from to close to open or vice versa. • Special coatings for offshore or corrosive environments. General application ALGA, ALGAS and ALGAS-QA pneumatic actuators are designed for on-off or modulating control of quarter turn ball, butterfly, plug or damper style valves.