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NOTE: This is an unformatted excerpt from our online fire protection training library.

Automatic Sprinkler Inspection, Testing & Maintenance

Dry-pipe valves

There are many components of a dry-pipe valve that require regular maintenance. Always follow the manufacturer's recommendations. In general, the interior of the dry-pipe valve must be carefully examined during the annual trip test. Look for interior corrosion, damage to the valve seat, and damage to the rubber gasket. Clean the alarm opening to the alarm line and remove any debris in the dry-pipe valve intermediate chamber. Any air leaks greater than 10 psi (90.7 bar) per week must be repaired. Any low point drains must be checked before cold weather, and periodically re-checked during cold weather.


NOTE: This is an unformatted excerpt from our online fire protection training library.

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