549678

Name: Festo 549678 Quarter turn actuator DAPS-0720-090-RS2-F12
Brand: Festo

Quarter turn actuator DAPS-0720-090-RS2-F12

The Festo part number 549678 is a single-acting industrial valve actuator featuring a kinematic yoke system with an actuator size of 0720, an F12 flange hole pattern, and a 90-degree swivel angle. It operates at a nominal pressure of 0.56 MPa with an operating pressure range of 0.35 MPa to 0.84 MPa, a spring force connection pressure of 0.35 MPa, and supports safety integrity levels up to SIL 2 low demand mode. Designed with an un-cushioned structure, ISO 5211 valve connection, VDI/VDE 3845 NAMUR compliance, and an adjustable end-position range from -1 to 9 degrees at 0 degrees and 81 to 91 degrees at the nominal swivel angle, it achieves a maximum swivel frequency of 1 Hz at 6 bar while closing to the right in 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: 549678
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Technical Specifications

Size of valve actuator: 0720
Flange hole pattern: F12
Swivel angle: 90 deg
End-position adjusting range at 0°: -1 deg...9 deg
End-position adjusting range at nominal swivel angle: 81 deg...91 deg
Depth shaft connection: 38.5 mm
Information on the end-position adjusting range: One end position optionally adjustable
Standard connection for valve: ISO 5211
Cushioning: No cushioning
Mounting position: Any
Mode of operation: Single-acting
Structural design: Kinematic yoke system
Position sensing: None
Closing direction: Closes to the right
Valve connection conforms to standard: VDI/VDE 3845 (NAMUR)
Safety integrity level (SIL): Up to SIL 2 low demand mode
Connection pressure for spring force: 0.35 MPa | 3.5 bar
Operating pressure: 0.35 MPa...0.84 MPa | 3.5 bar...8.4 bar
Nominal operating pressure: 0.56 MPa | 5.6 bar
Max. swivel frequency at 6 bar: 1 Hz
CE marking (see declaration of conformity): as per EU explosion protection directive (ATEX)
UKCA marking (see declaration of conformity): acc. to UK EX instructions
Explosion prevention and protection: Zone 1 (ATEX) | Zone 2 (ATEX) | Zone 21 (ATEX) | Zone 22 (ATEX)
Certicate issuing authority: German Technical Control Board North (TÜV Nord) 212170801
ATEX category gas: II 2G
ATEX category for dust: II 2D
Type of ignition protection for gas: Ex h IIC T6...T3 Gb X

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