Which components are included in the five-year internal inspection requirement for system valves?

Which components are included in the five-year internal inspection requirement for system valves?

• A. Alarm valve, strainers, filters and check valves
• B. Alarm valve only
• C. Strainers and filters only
• D. Check valves only

Answer: (A)

The five-year internal inspection focuses on the inside of valve assemblies to ensure they will operate reliably and signal properly when needed. It goes beyond a surface check and requires opening the valve to inspect and clean internal parts so debris won’t cause blockages or prevent the alarm from triggering. The components included are the alarm valve itself, which initiates the alarm when water moves through the system; strainers and filters, which capture debris to protect downstream piping and devices; and check valves, which prevent backflow and ensure water flows in the correct direction. During the inspection you pull the internal parts, inspect seats and moving components for wear, clean or replace strainers and filters, and verify that the check valves seat and operate correctly. All four are inspected together because each plays a distinct, essential role in the reliability of the sprinkler system’s five-year interval.

The five-year internal inspection focuses on the inside of valve assemblies to ensure they will operate reliably and signal properly when needed. It goes beyond a surface check and requires opening the valve to inspect and clean internal parts so debris won’t cause blockages or prevent the alarm from triggering.

The components included are the alarm valve itself, which initiates the alarm when water moves through the system; strainers and filters, which capture debris to protect downstream piping and devices; and check valves, which prevent backflow and ensure water flows in the correct direction. During the inspection you pull the internal parts, inspect seats and moving components for wear, clean or replace strainers and filters, and verify that the check valves seat and operate correctly. All four are inspected together because each plays a distinct, essential role in the reliability of the sprinkler system’s five-year interval.