Quarter-turn actuator, single-acting, spring return, flange F12, ATEX DAPS-0720-090-RS3-F12 - Festo 549679

For valves with flange F12 that must return safely to their home position on air failure: the Festo DAPS-0720-090-RS3-F12 with spring strength 3 swivels 90°. The spring provides 360 Nm at 0° and 540 Nm at 90°.

Benefits

• Spring return torque 360 Nm at 0°, 270 Nm at 50° and 540 Nm at 90° (spring strength 3, rated for 4.2 bar supply pressure)
• Pneumatic torque at 5.6 bar: 840 Nm at 0°, 660 Nm at 90°
• Flange hole pattern F12 to ISO 5211, shaft connection T36 with 38.5 mm depth
• NAMUR valve interface to VDI/VDE 3845 for direct mounting of a solenoid valve
• ATEX II 2G and II 2D, type of protection Ex h IIC T6...T3 Gb X
• Usable in SRP/CS up to SIL 2, low demand and high demand

Applications

The DAPS-0720-090-RS3-F12 sits on water, wastewater and process valves with flange F12. It works at 4.2 to 8.4 bar and uses 29.4 l of air per switching cycle at 6 bar.