Powerful Performer

Robust, flexible, powerful – the heavyduty quarter turn actuator DFPD-HD is the latest addition to the quarter turn actuator range from Festo.

Published: 6th February 2017 | Issue 40

Robust, flexible, powerful – the heavy-duty quarter turn actuator DFPD-HD from Festo provides reliable control of high-volume media flows.

Designed in accordance with the scotch-yoke principle, the quarter turn actuator DFPD-HD is exceptionally reliable. With torque ratings of 9,000 to 32,000 Nm, it guarantees reliable control of high-volume media flows. It is ideal for on/off and closed-loop control of large ball valves, butterfly valves and air dampers used in power plants, the chemical industry and in water treatment and is the perfect choice whenever safe, reliable solutions are required.

High performance, high level of safety

This modular system offers powerful solutions for various applications in process automation. Available in three versions of max. 9,000, 18,000 and 32,000 Nm respectively, the quarter turn actuator DFPD-HD adapts flexibly to applications. The single acting version offers standard clockwise direction of rotation and provides a high level of safety by ensuring that the media flow is interrupted automatically in the case of a malfunction. It is available with configurable spring forces and mechanical or hydraulic manual override. Rotation can also be configured in an anticlockwise direction, in which case the DFPD-HD will release the media flow if a malfunction occurs. This new performance platform from Festo is also available in doubleacting versions, for even greater flexibility. Both versions can be used in applications requiring safety-approved equipment up to SIL 3.

Practical design

Thanks to its standard VDI/VDE 3845 interfaces, the quarter turn actuator DFPD-HD allows a wide range of external devices, such as sensor boxes or positioners, to be connected. The DFPD-HD can be used at any ambient temperature between -20 and 80°C. Its spring force can be adapted for different applications by fitting various spring cartridges. A mechanical or hydraulic manual override provides additional safety. This allows the actuators to be operated manually in the case of a power failure.

Tel: +44(0)800 626 422
Email: info_gb@festo.com
Web: www.festo.co.uk/dfpd

Festo Ltd