8042185

Name: Festo 8042185 Quarter turn actuator DFPD-20-
Brand: Festo

Quarter turn actuator DFPD-20-

The Festo 8042185 is a gear rack and pinion industrial component featuring a valve actuator size of 20 with an ISO 5211 standard connection, F03, F04, and F05 flange hole patterns, and a 90-degree swivel angle with a -5 deg to 5 deg end-position adjusting range at both 0 degrees and the nominal swivel angle. Operating in double-acting or single-acting modes with any mounting position, this safety device includes a 24 bar burst pressure, VDI/VDE 3845 NAMUR valve connections, and functional safety certification to ISO 13849 and IEC 61508 for up to SIL 2 low demand, SIL 1 high demand, and SIL 3 in a redundant architecture. Submit the exact part number, quantity, and application requirements to receive a quote for this Festo component.

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Manufacturer: Festo
Part number: 8042185
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Technical Specifications

Size of valve actuator: 20
Flange hole pattern: F03 | F04 | F05
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...12 mm
Standard connection for valve: ISO 5211
Mounting position: Any
Mode of operation: Double-acting | Single-acting
Structural design: Gear rack/pinion
Closing direction: Closes to the right | Closes to the left
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. This switching movement is achieved by | pressurizing the corresponding pressure chamber with compressed air. | The value of the torque generated depends on the pressure diﬀerence | between the two pressure chambers separated by the piston. | 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

Engineering context

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Our sourcing response is prepared against Festo 8042185. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.