Parameter Specification Notes / Details Model 16A5376X082 Product Line Fisher 1052 NAMUR Pneumatic Actuator Actuator Type Double-Acting (Springless) Requires air for both open & close strokes. Action Double-Acting Fail-Safe Mode None (Air-to-Air) Lacks a spring. Stays in last position on air failure unless paired with an external safety system. Torque Output Approx. 413 lb-in (47 Nm) at 80 psi (5.5 bar) supply pressure. Torque is proportional to air supply pressure. Supply Pressure Range 40 to 120 psi (2.8 to 8.3 bar) Standard operating range. Standard Air Connection NPT 1/4" Mounting Standard VDI/VDE 3845 (NAMUR) Standardized interface for quarter-turn valve accessories (e.g., limit switches, solenoid valves). Mounting Style Direct to NAMUR-compliant valves; Side-mounted to Fisher 1061/1066 piston actuators for double-block-and-bleed applications. Temperature Range Standard: -4° to 180°F (-20° to 82°C) Low Temp.: -40° to 180°F (-40° to 82°C) (with optional seals) Materials Body: Die-cast aluminum Corrosion Protection: Powder-coated epoxy finish Internal Parts: Plated for corrosion resistance.
