To utilize the normally closed (N/C) function

this unit is the engineered direct replacement for the 0537-E01-HM0075 model

which drive internal temperatures toward the 300°F safety limit

To avoid flattening the woven foil or damaging the mesh structure

What systems use the Hankison 7419309

Johnson Controls VA-8122-1 Valve Actuator 30067439-890 To utilize the normally closedThe Johnson Controls VA 8122 1 Valve Actuator is a professional grade synchronous motor driven actuator designed for precise proportional control in HVAC hydronic systems. This non spring return actuator is engineered to provide accurate incremental positioning for valves in commercial air handling units and fan coil applications. Operating on 24 VAC or VDC, it delivers a consistent 22 lb shutoff force (98 N), ensuring reliable flow regulation and