Quarter-turn actuator, single-acting, spring return, flange F12/F16, ATEX DAPS-0960-090-RS4-F1216-T6 - Festo 553244

For valves with flange F12/F16 that must return safely to their home position on air failure: the Festo DAPS-0960-090-RS4-F1216-T6 with spring strength 4 swivels 90°. The spring provides 640 Nm at 0° and 960 Nm at 90°.

Benefits

• Spring return torque 640 Nm at 0°, 480 Nm at 50° and 960 Nm at 90° (spring strength 4, rated for 5.6 bar supply pressure)
• Pneumatic torque at 5.6 bar: 960 Nm at 0°, 640 Nm at 90°
• Flange hole pattern F12/F16 to ISO 5211, shaft connection T46 with 48.5 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-0960-090-RS4-F1216-T6 sits on water, wastewater and process valves with flange F12/F16. It works at 5.6 to 8.4 bar and uses 41.3 l of air per switching cycle at 6 bar. This version can be used down to -50 °C ambient temperature.