Technical Parameters Parameter Specification Model Fisher 3710 Type Spring-Return, Piston Actuator Action Spring-Return (Air-to-Open / Spring-to-Close or Air-to-Close / Spring-to-Open) Standard Travel 90° quarter-turn (for rotary valves). Actuator Style Piston and Crank Assembly Body Material Aluminum with epoxy coating Spring Housing Material Carbon Steel (standard) Operating Pressure Range 40 to 120 psig (2.8 to 8.3 bar) is standard. Higher pressure versions (e.g., up to 200 psig) are available. Failsafe Action Failsafe Open or Failsafe Closed, determined by the mechanical linkage assembly. Temperature Limits -4°F to 180°F (-20°C to 82°C) with standard Buna-N seals. Torque Output Varies by size and supply pressure. Example (at 80 psig): - Size 16: ~ 190 lb-in (21 Nm) - Size 40: ~ 1180 lb-in (133 Nm) - Size 100: ~ 7400 lb-in (836 Nm) Sizes (Frame Size) 16, 25, 40, 65, 100, 140, 200
