Schneider Electric MK-6621 Globe Valve Pneumatic Actuator

Schneider Electric MK-6621 Globe Valve Pneumatic Actuator is a high-performance linear actuator with a spring-return design for reliable globe valve control. Designed for upright mounting with the actuator head above the horizontal center line, it provides proportional control for precise flow regulation in a compact package.

Built with a die-cast aluminum body and Neoprene diaphragm, this actuator delivers robust operation in demanding environments. The 50 square inch diaphragm effective area supports responsive action, while a broad ambient temperature range (-20 to 220 °F) and NEMA 1 protection ensure dependable service in industrial settings. An air end connection of 1/8 inch female threaded plus a 30 PSIG operating pressure, paired with a nominal 8–13 PSIG spring range, offers versatile, reliable actuation.

• Type: Linear, Spring Return
• Mounting: Upright position with actuator head above the horizontal center line
• Stroke: 1/2 inch
• End Connection: 1/8 inch female threaded (air)
• Pressure Rating: 30 PSIG
• Body: Die-Cast Aluminum
• Diaphragm: Neoprene, 50 sq in effective area
• Temperature Range: -20 to 220 °F
• Control Signal: Proportional
• Protection: NEMA 1