8066434

Name: Festo 8066434 Quarter turn actuator DFPD-N-20-RP-90-RS30-F03-R3-EP
Brand: Festo

Quarter turn actuator DFPD-N-20-RP-90-RS30-F03-R3-EP

The Festo part number 8066434 is a single-acting gear rack and pinion valve actuator of size 20 featuring an ISO 5211 standard valve connection and an F03 flange hole pattern. This safety device operates at a nominal pressure of 3 bar (43.5 psi) within an operating pressure range of 2 bar to 8 bar (29 psi to 116 psi) and provides a 90-degree swivel angle with a -5 to 5-degree end-position adjusting range at both 0 degrees and the nominal swivel angle. Certified for safety functions to ISO 13849 and IEC 61508, the unit supports SIL 2 in low demand mode, SIL 1 in high demand mode, and SIL 3 in a redundant architecture, utilizing spring force to switch to the defined safety position when compressed air is removed and the spring chamber is exhausted. Submit the exact part number, quantity, and application requirements to receive an RFQ.

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Manufacturer: Festo
Part number: 8066434
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Technical Specifications

Size of valve actuator: 20
Flange hole pattern: F03
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: 10 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: 0.3 MPa | 3 bar | 43.5 psi
Maritime classication: See certicate

Engineering context

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Our sourcing response is prepared against Festo 8066434. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.