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Regulating valves operate based on input signals from sensors that monitor the process parameters. These sensors relay information to a control unit, which then sends commands to the valve actuator. The actuator adjusts the valve position, either opening or closing it to increase or decrease the flow accordingly. By continuously modulating the valve position, the system can stabilize the desired set point against fluctuations that may occur due to load changes or other external factors.

Safety Considerations

2. Globe Valves These valves are ideal for regulating flow. Their design allows for better throttling and fine control; however, they do incur a higher pressure drop compared to gate valves.

2. Manual Shut-off Valves These valves require manual intervention to close off the gas supply. They are often installed in strategic locations for emergency shut-off.

In HVAC systems, pressure regulating valves are essential for maintaining a comfortable indoor environment by controlling the flow of air and steam in heating and cooling systems. These valves help to prevent overpressure or under pressure situations, which can lead to inefficient operation and increased energy consumption.

- Residential Appliances Stoves, heaters, and water heaters commonly utilize gas pressure regulators to ensure proper functioning.

2. Pilot-operated Relief Valves These valves utilize a smaller pilot valve to control a larger main valve, providing enhanced performance and accuracy, especially in high-pressure applications.