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Wet Sprinkler System Standard Inspection Procedures
MONTHLY
- INSPECT GAUGES TO ENSURE THAT THEY ARE IN GOOD CONDITION AND NORMAL WATER SUPPLY PRESSURE IS BEING MAINTAINED.
- INSPECT CONTROL VALVE TO ENSURE VALVE IS:
- IN THE PROPER OPEN OR CLOSED POSITION
- PROPERLY SEALED, LOCKED OR SUPERVISED
- ACCESSIBLE
- PROVIDED WITH APPROPRIATE WRENCHES
- FREE OF EXTERNAL LEAKS
- PROVIDED WITH APPROPRIATE IDENTIFICATION
- INSPECT THE EXTERIOR OF THE ALARM VALVE TO ENSURE:
- THE GAUGES INDICATE NORMAL SUPPLY PRESSURE
- VALVE IS FREE OF PHYSICAL DAMAGE
- THE PROPER OPEN OR CLOSED POSITION
- THERE IS NO LEAKAGE FROM THE RETARDING CHAMBER OR ALARM DRAINS
QUARTERLY
- INSPECT ALARM DEVICES TO VERIFY THAT THEY ARE FREE OF PHYSICAL DAMAGE.
- INSPECT HYDRAULIC NAMEPLATE TO VERIFY THAT IT IS ATTACHED SECURELY TO THE RISER AND IS LEGIBLE.
- INSPECT PRESSURE REGULATING CONTROL VALVES TO VERIFY THAT THEY ARE:
- IN THE OPEN POSITION
- NOT LEAKING
- MAINTAINING DOWNSTREAM PRESSURE IN ACCORDANCE WITH DESIGN CRITERIA.
- IN GOOD CONDITION WITH HANDWHEELS INSTALLED AND UNBROKEN.
- MAIN DRAIN TEST SHALL BE CONDUCTED QUARTERLY AT EACH SYSTEM RISER
TO DETERMINE IF THERE HAS BEEN A CHANGE IN THE CONDITION OF WATER
SUPPLY PIPING AND CONTROL VALVES
- WATER FLOW TEST SHALL BE CONDUCTED BY OPENING INSPECTOR'S TEST
CONNECTION.
- FIRE DEPARTMENT CONNECTIONS SHALL BE INSPECTED TO VERIFY THE
FOLLOWING:
- CONNECTIONS ARE VISIBLE AND ACCESSIBLE
- COUPLINGS OR SWIVELS ARE NOT DAMAGED AND ROTATE SMOOTHLY.
- PLUGS OR CAPS ARE IN PLACE AND UNDAMAGED.
- GASKETS ARE IN PLACE AND IN GOOD CONDITION.
- IDENTIFICATION SIGNS ARE IN PLACE.
- THE CHECK VALVE IS NOT LEAKING
- THE AUTOMATIC DRAIN VALVE IS IN PLACE AND OPERATING PROPERLY.
ANNUALLY
- SPRINKLERS SHALL BE INSPECTED TO VERIFY THEY ARE FREE OF CORROSION,
FOREIGN MATERIALS, PAINT AND PHYSICAL DAMAGE AND SHALL BE INSTALLED
IN THE PROPER ORIENTATION.
- PIPING AND FITTINGS SHALL BE INSPECTED TO ENSURE THEY ARE IN
GOOD CONDITION AND FREE OF MECHANICAL DAMAGE, LEAKAGE, CORROSION
AND MISALIGNMENT. SPRINKLER PIPING SHALL NOT BE SUBJECT TO EXTERNAL
LOADS.
- HANGERS AND SEISMIC BRACES SHALL BE INSPECTED TO VERIFY THEY
ARE IN GOOD CONDITION.
- SPARE SPRINKLER SET SHALL BE INSPECTED FOR THE FOLLOWING:
- THE PROPER NUMBER AND TYPE OF SPRINKLERS
- A SPRINKLER WRENCH FOR EACH TYPE OF SPRINKLER.
- EACH CONTROL VALVE SHALL BE OPERATED THROUGH ITS FULL RANGE AND
RETURNED TO ITS NORMAL POSITION.
- A FLOW TEST SHALL BE CONDUCTED ON EACH VALVE AT ANNUAL INTERVALS
AND COMPARED TO PREVIOUS TEST RESULTS.
- ANTIFREEZE LOOP SOLUTION SHALL BE TESTED ANNUALLY BEFORE FREEZING
TEMPERATURES.
- OBSTRUCTION INVESTIGATION WHERE MAINTENANCE OR REPAIR REQUIRES
THE REPLACEMENT OF SPRINKLER SYSTEM COMPONENTS AFFECTING MORE THAN
20 SPRINKLERS.
5 YEAR INSPECTION AND TESTING
- GAUGES SHALL BE TESTED OR REPLACED.
- EXTRA HIGH TEMPERATURE SPRINKLERS REPLACED[325 DEGREES OR GREATER]
- INTERNAL INSPECTION OF ALARM VALVE.
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7640 Investment Court, Suite B Owings, MD 20736
| Office: |
(410) 286-3314 |
| Fax: |
(410) 286-3318 |
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