Pneumatic Actuator Rack & Pinion Spring Opening 8.1Nm at 6bar F04 - PR50B-F04

This single-acting pneumatic actuator is ideal for quarter-turn valves like ball or butterfly valves. The rack-and-pinion mechanism delivers a minimum air-closing torque of 8.1 Nm (5.97 lb-ft) at 6 bar (87 psi) and a minimum fail-safe spring-opening torque of 5.8 Nm (4.28 lb-ft), with an input pressure range of 3 - 8 bar (43-116 psi). It fits ISO 5211 F04 valves with a 11 mm star connection. Suitable for -20 to 80 °C (-4 to 176 °F) with an NBR seal. The 35-micron hard anodized aluminum body and polyester coated end covers ensure durability. Features include: mounting holes for Namur 1/4 inch solenoid valves, a 80 x 30 mm interface for VDI/VDE 3845 limit switch boxes, BSPP air ports, stopper bolts to adjust end positions, a sensor mounting groove, and a clear position indicator. Lifespan 500,000+ cycles. Comes with square adapter, bolts, and washers (M5, M6, M8).

Pros:

• Guaranteed minimum torque of 8.1 Nm closing at 6 bar and 5.8 Nm fail-safe opening
• Fits ISO 5211 F04 with 11 mm star
• Direct mounting of 1/4 Namur solenoid valve possible
• Guaranteed 500,000+ cycles

Cons:

• No ATEX or SIL certificate