Quarter turn actuator, single-acting, spring return, size 20, flange F04 DFPD-20-RP-90-RS30-F04 - Festo 8047621

The single-acting DFPD in size 20 moves the valve with 3.8 to 7.4 Nm air torque at 3 bar and returns it by spring with 3.6 to 7.1 Nm. It mounts via the F04 hole pattern to ISO 5211, the T11 shaft, depth 12 mm engages the valve stem.

Benefits

• 3.8 to 7.4 Nm with compressed air (3 bar) and 3.6 to 7.1 Nm from the spring set
• Safety position by spring force if air supply fails, operating pressure 2 to 8 bar
• Valve interface to ISO 5211: flange F04, shaft connection T11
• Valve interface to VDI/VDE 3845 (NAMUR) for direct mounting of a solenoid valve, positioner and position sensor interface size AA 1
• For hazardous areas: ATEX II 2G and II 2D, ignition protection Ex h IIC T4 Gb X
• Suitable for safety-related control systems (SRP/CS) up to SIL 2 High Demand

Applications

It operates 90-degree valves with top flange F04, for example ball valves or butterfly valves in pipelines. For hazardous areas: the actuator with flange F04 is rated ATEX II 2G/2D for zones 1 and 2 as well as zones 21 and 22. Medium: compressed air to ISO 8573-1:2010 [7:4:4], permitted 2 to 8 bar, rated at 3 bar. For sizing the valve bracket: product weight 1.37 kg.