Control Valves

A Control Valve is a crucial component used to regulate fluid flow by adjusting the size of the flow passage based on signals from a controller. Here’s how it works:
1. Function: Control valves manage flow rates, which directly impact process quantities like pressure, temperature, and liquid level.
2. Operation: When a controller sends a signal, the valve opens or closes automatically using electrical, hydraulic, or pneumatic actuators.
3. Positioners: These devices control actuator movement based on electric or pneumatic signals (commonly 4-20mA).
4. Importance: Control valves play a vital role in maintaining process variables within desired ranges for quality product output