Quarter turn actuator DFPD

The DFPD series features a rack and pinion combination with a constant torque characteristic across the entire swivel range. The quarter turn actuators DFPD are perfect for automating your butterfly valves, ball valves and dampers.
  • 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 connection 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
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Flexible in operation

DFPD – the new benchmark for quarter-turn actuators. It can be used as an individual actuator or as part of a complete automated process valve system from Festo. With a torque range from 10 to 2,300 Nm, a rotation angle of up to 180° and corrosion-resistant versions, the single- or double-acting DFPD is suitable for ball valves, butterfly valves or air dampers in the chemical, pharmaceutical and beverage industries, as well as for water treatment.

Compact and modular

The compact rack-and-pinion combination – especially in the single-acting version – is easy to install even when space is at a premium. Its range of variants, the standardised port patterns to NAMUR VDI/VDE 3845 for pilot valves as well as the many compatible peripheral devices mean that it can be operated in a large variety of applications. In addition, both the end positions can be adjusted and the direction of rotation of the single- and double-acting DFPD can be selected.

Optimised spring design for greater productivity.

Thanks to the spring design, the pressure range can be perfectly set for the task in hand. This allows pressures from 2 to 6 bar to be easily set in increments of 0.5 bar.

For large temperature ranges

The DFPD operates reliably at extreme temperatures, with the breadth of low- and high-temperature versions ranging from -50 to +150°C.

The technical highlights presented by the Product Manager


DFPD-C: perfect for chemicals.

The quarter-turn actuators DFPD-C and DFPD-C-VDE2 are equipped for the harsh conditions in the chemical industry and set a new benchmark thanks to their excellent features. These include a NAMUR interface to VDI/VDE 3847, hard-anodised end caps, blow-out-proof adjusting screws for the end position, shaft centring ring and captive spring cartridges that are free of non-ferrous metals.

View all variants of the DFPD-C

Configurator: automate process valves with the DFPD

The configurator for process valve units makes selecting the optimum solution child’s play. Simply select your parameters and the configurator will immediately suggest appropriate combinations, including system ID and CAD download, making engineering faster, safer and simpler.