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.

Turn air pressure into consistent swinging motion with this pneumatic 90-degree rotary actuator from Festo. It can confidently handle between 2 and 8 bar of pressure, making it well-suited to small and medium-sized systems. The unit will also weather the storm of extreme temperatures from -20°C to +80°C. With its rugged and rust-resistant aluminium housing, it's a powerhouse for both indoor and outdoor applications. The double-action design ensures responsive and precise movements with less friction, so your machines can move back and forth all day long.

• Standard G1/4 and NPT pneumatic connections let you quickly hook the actuator up to your system
• Supports high torque speeds of 117.4Nm for fast and efficient operation

• Water treatment facilities
• Pharmaceutical production
• Automation equipment
• Manufacturing industry

A rack and pinion is the mechanism used by this device to convert linear motion into rotational motion. This type of actuator is typically used for opening, closing, turning and mixing actions.

This versatile option is ideal for automating butterfly, ball and air shut-off valves.