8066426

Name: Festo 8066426 Quarter turn actuator DFPD-N-20-RP-90-RS60-F04
Brand: Festo

Quarter turn actuator DFPD-N-20-RP-90-RS60-F04

The Festo 8066426 is a single-acting gear rack/pinion industrial component featuring a size 20 valve actuator, an F04 flange hole pattern, and a 90-degree swivel angle with an end-position adjusting range of -5 deg to 5 deg at both 0 degrees and the nominal swivel angle. Certified as a safety device under VDMA 66413, it incorporates a spring assembly safety function that switches the actuator to a defined safety switching position when compressed air is switched off and the spring chamber is exhausted, supporting up to SIL 2 in low demand mode, SIL 1 in high demand mode, and SIL 3 in a redundant architecture. This component operates within a pressure range of 2 bar to 8 bar (29 psi to 116 psi) at a nominal operating pressure of 6 bar, utilizes an ISO 5211 standard valve connection conforming to VDI/VDE 3845 (NAMUR), and features a 12 mm shaft connection depth with any mounting position. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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Manufacturer: Festo
Part number: 8066426
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Technical Specifications

Size of valve actuator: 20
Flange hole pattern: F04
Swivel angle: 90 deg
End-position adjusting range at 0°: -5 deg...5 deg
End-position adjusting range at nominal swivel angle: -5 deg...5 deg
Depth shaft connection: 12 mm
Standard connection for valve: ISO 5211
Mounting position: Any
Mode of operation: Single-acting
Structural design: Gear rack/pinion
Closing direction: Closes to the right
Valve connection conforms to standard: VDI/VDE 3845 (NAMUR)
Connection point for positioner and position sensor conforms to: VDI/VDE 3845 Size AA 1
Devices type according to VDMA 66413: Safety device
Safety function: The safety function consists of the actuator switching to the dened | safety switching position when the compressed air is switched oﬀ and | the spring chamber is exhausted. This switching movement is achieved | through the spring force of the spring assembly.
Safety integrity level (SIL): Up to SIL 2 low demand mode | up to SIL 3 in a redundant architecture | up to SIL 1 high demand mode
Certied for safety function to ISO 13849 and IEC 61508 (SIL): Product can be used in safety-related parts of control systems up to SIL | 2, low demand | Product can be used in safety-related parts of control systems up to SIL | 1, high demand | up to SIL 3 in a redundant architecture
Burst pressure: 24 bar
Operating pressure: 0.2 MPa...0.8 MPa | 2 bar...8 bar | 29 psi...116 psi
Nominal operating pressure: 0.6 MPa | 6 bar | 87 psi
Maritime classication: See certicate

Engineering context

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Our sourcing response is prepared against Festo 8066426. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.