8042194

Name: Festo 8042194 Quarter turn actuator DFPD-900-
Brand: Festo

Quarter turn actuator DFPD-900-

The Festo part number 8042194 is an industrial component utilizing a gear rack and pinion structural design with a valve actuator size of 900 and an ISO 5211 standard connection for valves. This double-acting and single-acting device features a 90-degree swivel angle, an operating pressure of 0.2 MPa to 0.8 MPa, a burst pressure of 24 bar, and can be mounted in any position with an F14 or F1012 flange hole pattern. Certified for safety functions to ISO 13849 and IEC 61508, it provides safety integrity levels up to SIL 2 in low demand mode, SIL 1 in high demand mode, and SIL 3 in a redundant architecture. Please submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 8042194
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Technical Specifications

Size of valve actuator: 900
Flange hole pattern: F14 | F1012
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: 29 mm...38 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 3
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
Operating pressure: 0.2 MPa...0.8 MPa

Engineering context

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Our sourcing response is prepared against Festo 8042194. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.