Statement

Method Statement for Dry Riser Testing

  1. Inspect all pipe work, joints and valves to ensure they are in good condition and have not been damaged.
  2. Open and close each landing valve, lubricating if necessary, and inspect internally for blockages. Fit new instantaneous washers where any appear to be perished.
  3. Locate air release valve and check on its condition. Replace if ball appears to be perished.
  4. Inspect inlet breeching and drain valve, lubricating if necessary.
  5. Insert pressure gauge into the instantaneous coupling on the top landing valve.
  6. Connect drain hose to drain valve.
  7. Connect water feed to the inlet breeching non-return valve.
  8. Fill the riser with water, whilst ensuring all air is released from the air valve.
  9. When the riser is full check each landing valve and all pipe work for any leaks.
  10. If no leaks detected, pressure should be increased to 10 bar at the inlet breeching. A note should be made of the pressure reading at the top of the landing valve.
  11. The riser should now be left under pressure for a period of 15 minutes.
  12. If the pressure reading at the top landing valve has not reduced by more than 2 bar, the riser may be certified as passing the test.
  13. The riser should now be drained by opening the drain valve at the lowest point of the riser.
  14. Once the riser is totally drained the valve should be shut tightly.
  15. If the landing valves are not in locked cabinets then they must be secured in a closed position using a leather strap and padlock.
  16. A maintenance label must be fitted in the inlet cabinet stating the month and the year of the test, the result of the test and the engineers who carried out the test.