Which description best matches the function of a Post Indicator Valve Assembly?

Which description best matches the function of a Post Indicator Valve Assembly?

• A. A circular disk indicates OPEN or SHUT by its orientation
• B. A disk rotates to indicate flow direction
• C. A lever changes position to indicate status
• D. A digital readout displays temperature

Answer: (A)

Post Indicator Valve Assemblies are designed to show, from above ground, whether an underground valve is open or closed. The key feature is a circular indicator disk mounted on a post. The disk’s orientation changes with the valve position, so when the valve is open the disk is oriented to display OPEN, and when the valve is shut it shows SHUT. This simple mechanical indicator lets crews verify status at a glance without digging. It isn’t about flow direction, a lever indicating status, or a digital temperature readout, which is why the circular-disk indicator showing OPEN or SHUT by its orientation is the best match.

Post Indicator Valve Assemblies are designed to show, from above ground, whether an underground valve is open or closed. The key feature is a circular indicator disk mounted on a post. The disk’s orientation changes with the valve position, so when the valve is open the disk is oriented to display OPEN, and when the valve is shut it shows SHUT. This simple mechanical indicator lets crews verify status at a glance without digging. It isn’t about flow direction, a lever indicating status, or a digital temperature readout, which is why the circular-disk indicator showing OPEN or SHUT by its orientation is the best match.