This type of control valve is a hollow metal post that houses a valve stem with a moveable plate labeled OPEN or SHUT.

This type of control valve is a hollow metal post that houses a valve stem with a moveable plate labeled OPEN or SHUT.

• A. Outside stem & yoke
• B. Post indicator valve
• C. Wall post indicator valve
• D. Post indicator valve assembly

Answer: (B)

A post indicator valve is identified by a hollow metal post that houses the valve stem and carries a moveable plate on the post labeled OPEN or SHUT. This design lets crews read the valve’s position from the surface without digging. The indicator plate moves with the stem, showing whether the valve is allowing flow or is closed, which is exactly what the description describes. Other valve types don’t feature a hollow post with an on-post indicator plate, so they don’t match this design.

A post indicator valve is identified by a hollow metal post that houses the valve stem and carries a moveable plate on the post labeled OPEN or SHUT. This design lets crews read the valve’s position from the surface without digging. The indicator plate moves with the stem, showing whether the valve is allowing flow or is closed, which is exactly what the description describes. Other valve types don’t feature a hollow post with an on-post indicator plate, so they don’t match this design.