What is the first step when field testing the first check valve of a double check valve assembly with water flowing from the site tube?

What is the first step when field testing the first check valve of a double check valve assembly with water flowing from the site tube?

• A. Observe reading on gauge
• B. Close high side of bleed valve
• C. Open high side of bleed valve
• D. Open low side of bleed valve

Answer: (A)

The first step when field testing the first check valve of a double check valve assembly with water flowing from the site tube involves observing the reading on the gauge. This is critical because it establishes a baseline measurement of the pressure differential across the check valve. Monitoring this reading allows the technician to evaluate whether the check valve is functioning correctly under operational conditions. If the reading shows a significant drop or fluctuation, it indicates a potential issue with the check valve, such as backflow or failure to hold pressure, which can compromise the system's integrity. Therefore, starting by observing the gauge reading helps identify any immediate concerns with the valve's performance, ensuring that any further steps taken in the testing process are grounded in accurate initial data. The other actions listed, such as closing or opening bleed valves, would typically follow after assessing the gauge and determining the condition of the check valve from the initial reading. These subsequent steps help adjust or control the flow and pressure for more detailed testing, but they are not the first action taken in the process.

The first step when field testing the first check valve of a double check valve assembly with water flowing from the site tube involves observing the reading on the gauge. This is critical because it establishes a baseline measurement of the pressure differential across the check valve. Monitoring this reading allows the technician to evaluate whether the check valve is functioning correctly under operational conditions.

If the reading shows a significant drop or fluctuation, it indicates a potential issue with the check valve, such as backflow or failure to hold pressure, which can compromise the system's integrity. Therefore, starting by observing the gauge reading helps identify any immediate concerns with the valve's performance, ensuring that any further steps taken in the testing process are grounded in accurate initial data.

The other actions listed, such as closing or opening bleed valves, would typically follow after assessing the gauge and determining the condition of the check valve from the initial reading. These subsequent steps help adjust or control the flow and pressure for more detailed testing, but they are not the first action taken in the process.