Inspections

Testing

• Daily: Check temperature of Dry Pipe Valve room as well as all Wet Pipe Valve piping (min. of 40° F) for adequate heat as not to expose water filled pipes to freezing.
• Weekly: Maintain 18” clearance below sprinklers.
  Gauge inspection – air & water pressures on DPV, Preaction & Deluge systems for normal pressure range. Record pressures. Inspect for physical damage.
  Inspect supply & control valves.
• Quarterly: Determine priming water level & adjust as necessary (DPV, Preaction & Deluge Valves).
  Inspect & lubricate FDC's. Check alarm devices for physical damage & electrical connections secure.
• Annually: Inspect sprinklers, piping, hangers & seismic bracing. Check for proper spares requirement.
• Every 5 Years: Internally inspect all alarm & check valves. Examine system anytime unfavorable conditions exist for pipe blockage.

• Quarterly: 2” main drain flow test.
  Test water flow alarms – all (ex. vane type – test semiannually). Test low pressure alarms – DPV, Preaction & Deluge. DPV – test quick-opening devices.
• Semiannually: Test valve supervisory devices. Test supervisory signal devices. Perform quarterly requirements.
• Annually: Trip test DPV & full flow Deluge & Preaction Valves. Operate control valves through its full range & return it to its normal position. Perform quarterly requirements.
• Every 3 Years: Trip test DPV – terminate test when clean water flows from the inspectors test connection.
• Every 5 Years: Send representative sample of Extra High temp. heads to lab for operational testing. Test or replace gauges. Flush piping if needed.
• Every 20 Years: Test a representative sample of quick response sprinklers. Retest @ 10 year intervals.
• Every 50 Years: Test a representative sample of sprinklers. Retest @ 10 year intervals.

Maintenance

• Annually: Lubricate all valve stems on OS&Y valves. Exercise through its full range of motion & return to its normal position. Reseal or relock. Drain all low points on dry systems (drip drums) prior to freezing & as needed.