How does a direct-operating valve function?

A direct-operating valve functions by using a solenoid plunger that is connected directly to the disc of a globe valve. This design allows the valve to open and close in response to an electric signal that activates the solenoid. When the solenoid is energized, the plunger moves, directly impacting the position of the valve disc, thus controlling the flow of fluid through the system.

This method of operation is efficient because it eliminates the need for additional mechanical linkages or intermediary components. Since the solenoid directly impacts the valve disc, the response time is swift, which is crucial for systems requiring rapid adjustments. This functionality is particularly valuable in applications where precise control of fluid flow is necessary, such as in heating, ventilation, and air conditioning systems or in industrial processes requiring accurate fluid management.