Purpose of block valves?

Purpose of block valves?

• A. Start or stop flow
• B. Increase pressure
• C. Filter debris
• D. Measure flow

Answer: (A)

Block valves are used to provide a positive shut-off in a pipeline, allowing you to start or stop the flow by fully opening or fully closing the line. This lets you isolate a section for maintenance, perform safe work, or respond quickly in an emergency. They create a clear barrier so fluid doesn’t pass when the valve is closed. This is different from devices that raise pressure, filter debris, or measure flow, which are handled by pumps/regulators, filters, and flow meters. In practice, you close the valve to stop flow and open it to allow flow again, ensuring safe isolation of equipment when needed.

Block valves are used to provide a positive shut-off in a pipeline, allowing you to start or stop the flow by fully opening or fully closing the line. This lets you isolate a section for maintenance, perform safe work, or respond quickly in an emergency. They create a clear barrier so fluid doesn’t pass when the valve is closed. This is different from devices that raise pressure, filter debris, or measure flow, which are handled by pumps/regulators, filters, and flow meters. In practice, you close the valve to stop flow and open it to allow flow again, ensuring safe isolation of equipment when needed.