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Air Compressor Maintenance

Monday, January 15, 2018

A reliable source of clean, dry air under the proper pressure is necessary for Dry and Preaction Fire Protection Systems. Proper air pressure requirements will be determined at the time of the system design. If the air pressure is too low, the dry valve may accidentally trip when exposed to a rush in water pressure. If the air pressure is too high, the time between the opening of a sprinkler and the flow of water to the sprinkler may be too long. 

Air compressors are one option available to provide this necessary air supply for Dry and Preaction Fire Protection Systems.  Proper steps should be taken to ensure an air compressor is working properly and will maintain the air needed for your system.  Below are maintenance steps to follow for your air compressor.


  • Check gauge reading for consistency (compared to previous inspections)
  • Drain moisture from air compressor tank
  • Check for unusual noises or leaks
  • Check oil level


  • Check and tighten electrical connections (turn off power first!)
  • Inspect belt for wear and tear
  • Confirm bolts are tight
  • Change air filter


  • Change oil (confirm type with User Manual)

Please contact Ahern for any questions or concerns regarding your air compressor.

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