New York Low Pressure Boiler COF Practice

What device is installed in the line to mitigate water hammer created by a quick closing valve?

1. A pressure regulator

2. A control valve

3. A water hammer adapter

4. A manual shutoff valve

The correct answer is: A water hammer adapter

The device that is specifically designed to mitigate water hammer caused by a quick-closing valve is a water hammer adapter. Water hammer occurs when there is a sudden change in flow, often resulting from the rapid closing of a valve, which creates pressure surges in the piping system. The water hammer adapter acts as a cushion to absorb the shock waves generated by these sudden pressure changes, reducing the risk of noise, pipe damage, and other negative effects associated with water hammer. By incorporating such a device in the piping system, you can help ensure smoother operation of valves and maintain the integrity of the entire system. Other devices mentioned, such as pressure regulators or control valves, serve different functions primarily related to regulating flow and pressure rather than specifically addressing water hammer issues.