Product Description
Festo DFPB-20-090-F04 557540
The Festo DFPB-20-090-F04 is a compact and reliable quarter-turn pneumatic actuator designed for the automation of process valves such as ball valves and butterfly valves. Featuring a robust rack-and-pinion design, it delivers consistent torque and performance in a variety of industrial applications. Its standardized interface according to VDI/VDE 3845 allows for easy mounting of solenoid valves, positioners, and sensor boxes. The actuator is constructed with a durable aluminum housing, ensuring a long service life even in demanding environments.
Technical Specifications:
- Part Number: 557540
- Size: 20
- Swivel Angle: 90 deg
- Flange Hole Pattern: F04
- Actuating Torque at 6 bar: 9.2 Nm
- Operating Pressure: 2 bar to 8 bar
- Pneumatic Connection: G1/8
- Ambient Temperature: -20 °C to 80 °C

Festo DFPB-20-090-F04 557540
Festo DFPB-20-090-F04 (557540) pneumatic quarter-turn actuator with a 90° swivel angle and F04 flange. Provides 9.2 Nm torque at 6 bar for reliable process valve automation.







