Festo DFPD Series 8 bar Double Action Pneumatic Rotary Actuator, 90° Rotary Angle, 240mm 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 designed for efficient operation in various automation applications. With a compact build and a 240mm bore, it delivers precise motion control through a double-action mechanism. The actuator can achieve a rotary angle of 90 degrees, making it suitable for applications requiring quick and reliable actuation. Its robust design accommodates high input pressures, making it versatile in demanding industrial environments.

• Double-acting design enhances performance in intensive tasks
• Compact dimensions facilitate installation in tight spaces
• 90-degree rotary movement allows for precise positioning
• Customisable end-position adjustments up to ±5 degrees
• Compatible with standard VDI/VDE 3845 for easy integration

• Utilised in valve actuation systems for precise control
• Ideal for requiring rotational movement in confined spaces
• Effective in industrial automation for automation processes
• Suited for pneumatic systems needing quick responsive actions

The actuator features a housing made from anodised wrought aluminium alloy, ensuring resistance to corrosion and wear. The piston is crafted from die-cast aluminium, while seals are made from NBR, providing durability under various operating conditions.

It operates effectively within a range of 2 bar to 8 bar, providing flexibility for various industrial applications. The nominal operating pressure is set at 5.5 bar, ensuring efficient performance across different settings.

For optimal performance, it is advised to keep the dew point at least 10°C below the ambient temperature. Regular lubrication may also be needed, particularly if the actuator is operated under demanding conditions.