The control valve for a sprinkler system should always be:

The control valve for a sprinkler system should always be:

• A. a check valve
• B. an indicating type valve
• C. a non-indicating type of valve
• D. a quarter turn valve

Answer: (B)

Knowing the valve position at a glance is essential for safe operation and maintenance of a sprinkler system. An indicating type control valve provides a visual indication of whether it is open or closed, so you can confirm isolation before servicing and verify system readiness during inspections. This immediate feedback helps prevent accidental water release and ensures crews can work safely and tests reflect the true system status. A check valve isn’t a control valve and doesn’t show position. A non-indicating valve lacks a visible status, making it easy to misjudge whether the system is off. A quarter-turn valve describes a handle style, not a requirement for indication; while you can have indicating versions, the key point is having a valve that clearly shows its position.

Knowing the valve position at a glance is essential for safe operation and maintenance of a sprinkler system. An indicating type control valve provides a visual indication of whether it is open or closed, so you can confirm isolation before servicing and verify system readiness during inspections. This immediate feedback helps prevent accidental water release and ensures crews can work safely and tests reflect the true system status. A check valve isn’t a control valve and doesn’t show position. A non-indicating valve lacks a visible status, making it easy to misjudge whether the system is off. A quarter-turn valve describes a handle style, not a requirement for indication; while you can have indicating versions, the key point is having a valve that clearly shows its position.