Festo DFPD Series 8 bar Single Action Pneumatic Rotary Actuator, 90° Rotary Angle, 120mm 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 precision control in automation applications. With a 90° swivel angle and a bore of 120mm, this actuator efficiently engages in single-action operations. It is engineered to manage a maximum input pressure of 8 bar and operates seamlessly in demanding conditions, making it ideal for various industrial environments.

• Compact design allows for versatile installation options
• Single-acting mode ensures reliable rotation in one direction
• Torque output at 0° reaches 86 Nm for robust performance
• Adjustable end-position range enhances operational flexibility
• Compatible with valve standards for easy integration

• Utilised for automating quarter-turn valves in processing plants
• Effective where precise position control is essential
• Integrated into control systems requiring safety function compliance
• Used in environments prone to explosive atmospheres

The optimal operating pressure is 0.2 MPa to 0.8 MPa, with a maximum of 8 bar to ensure effective functionality and reliability.

It is certified to meet safety function standards, allowing use in control systems up to SIL 2 in low demand and SIL 3 in redundant setups.

It features a housing made of anodised wrought aluminium, with seals crafted from NBR and internal components of high-alloy stainless steel, ensuring durability.

Yes, operation with oil lubrication is possible, which may be required for specific applications to enhance performance.