Quarter-turn actuator, single-acting, spring return, flange F25, ATEX DAPS-4000-090-RS2-F25 - Festo 561694

Spring return with 1666 Nm at 0° and 2500 Nm at 90°: the single-acting DAPS-4000-090-RS2-F25 moves quarter-turn valves to their home position if the air supply fails. It is approved to ATEX II 2G and II 2D, swivels 90° and fits flange F25.

Benefits

• Spring return torque 1666 Nm at 0°, 1250 Nm at 50° and 2500 Nm at 90° (spring strength 2, rated for 3.5 bar supply pressure)
• Pneumatic torque at 5.6 bar: 5000 Nm at 0°, 4166 Nm at 90°
• Flange hole pattern F25 to ISO 5211, shaft connection T55 with 58 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

Automating ball valves, butterfly valves and other quarter-turn valves in process plants, including hazardous areas. Operating pressure 3.5 to 8.4 bar, air consumption 203.7 l per cycle at 6 bar.