Festo DFPD Series 8 bar Single Action Pneumatic Rotary Actuator, 90° Rotary Angle, 80mm Bore

Festo DFPD series quarter-turn rotary actuators feature a rack and pinion combination with a constant torque characteristic. The modular and compact design of the DFPD series allows various spring configurations as a suitable solution for different applications. They are the perfect solution for automating your butterfly valves, ball valves and air shut off valves. This range is also suitable for water/wastewater, beverage, pharmaceutical and process automation.

• Uniform torque characteristic across the entire rotation angle of 90° with the double-acting version
• Version with swivel angle 120°, 135°, 180° for the sizes 40, 120, 240, 480, double-acting
• Process valve connector according to ISO 5211
• Mounting hole pattern to VDI/VDE 3845
• Sturdy, non-slip, and easy-to-clean aluminium housing
• Long service life, low wear
• Increased corrosion protection
• Single and double acting options
• Port pattern to NAMUR VDI/VDE 3845 for mounting solenoid valves, position sensors and positioners

Quarter turn rotary actuators are components that are operated by compressed air which produces a rotary motion via a shaft to control the speed and rotation of attached equipment. In this scenario, the rotary actuator will turn a quarter when rotating.

This pneumatic rotary actuator is a compact solution designed for precise valve control in various mechanical applications. With a robust 80mm bore and a 90° swivel angle, it adeptly handles maximum operating pressures of up to 8 bar. This actuator is built to function efficiently under high-pressure conditions, making it ideal for industrial pneumatic solutions.

• Compact design fits into diverse installation spaces
• Single-acting mode enhances operational efficiency
• G 1/8 port connection simplifies integration into existing systems
• Designed for both gas and dust environments with explosion protection
• Certified for safety functionality up to SIL 3 in special architecture

• Used with ISO 5211 flanges for valve actuation
• Ideal for automation in process control systems
• Suitable for environments requiring compliance with explosion protection
• Used in various sectors, including chemical and pharmaceutical industries

At nominal operating pressure with a 0° swivel angle, the actuator can generate a torque of 60.3 Nm. With a 90° swivel angle, the torque is reduced to 31.5 Nm, ensuring effective valve operation without exceeding the maximum permissible torque.

Yes, it functions effectively in ambient temperatures ranging from -20°C to +80°C, making it suitable for a variety of industrial environments.

The actuator is designed for use with compressed air, following the guidelines set out in ISO 8573-1:2010, ensuring reliability in pressurised systems.

The actuator features a spring return mechanism that moves the device to a defined safety position when compressed air is switched off, thereby providing a reliable safety measure in various applications.