Specifications: Models: D (Double-Acting), DA (Spring-Return) Type: Piston Actuator, Scotch-Yoke design Action: Double-Acting (D) / Spring-Return (DA) Standard Travel: 90° quarter-turn (standard), 180° available for the D model. Mounting: Directly onto standard ISO 5211 mounting pads. Air Supply & Performance: Air Supply Pressure Range: D (Double-Acting): 2.8 to 8.6 bar (40 to 125 psig) DA (Spring-Return): 3.4 to 8.6 bar (50 to 125 psig) [Air pressure must overcome spring force] Ambient Temperature Range: -20° to 85°C (-4° to 185°F) with standard lubricant. Stroking Speed: Very fast, typically 1-2 seconds for 90° travel, depending on air supply and piping. Torque Output: Output: Torque output is a function of air supply pressure and actuator size. The DA model's torque varies between the air-side and spring-side of the stroke. Example Torque (for Size 30 @ 6.9 bar/100 psig): D Actuator: Approximately 70 Nm (50 lb-ft) at both ends of the stroke. DA Actuator: ~100 Nm (75 lb-ft) on the air end, ~60 Nm (45 lb-ft) on the spring end. Physical Data (Typical for Size 30): Body Material: Hard Anodized Aluminum Piston Rod & Yoke: Hardened Steel Weight: Approximately 5.4 kg (12 lbs) for the DA model. Accessories & Options: Positioners: Fisher FIELDVUE™ DVC6000 or other digital positioners can be mounted for precise modulating control. Limit Switches: Proximity or mechanical switches to indicate valve position. Solenoid Valves: Used for direct electrical control, essential for on-off and ESD applications. Air Filter Regulators: To clean and regulate the air supply. Manual Override: Optional handwheel for manual operation.