Technical Articles

  • TECHNICAL CHALLENGES

    Can You Meet the Challenge? AFSA’s Engineering & Technical Services Department staff present technical challenges here for you and your co-workers…

  • Higher Standards

    Higher Standards

    As the May/June 2023 issue of Sprinkler Age will be available at the NFPA Annual Conference and Expo® in Las Vegas, this column will serve a special p…

  • Flashpoint

    Flashpoint

    I want to take this opportunity to announce that Victoria Valentine has been selected to receive the grade of Fellow in the Society of Fire Protection…

Got Obstructions?

Got Obstructions?

How to Get Them Before They Get You! I had a great dream the other night. We had just completed a flawless installation. We had coordinated every detail with the design team up front. The MEP foremen had worked with us every step of the way. The architectural and structural …

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Obstruction Rules for CMSA Sprinklers

Obstruction Rules for CMSA Sprinklers

Some Parts are Missing The 2010 edition of NFPA 13, Standard for the Installation of Sprinkler Systems, introduced a new definition “Control Mode Specific Application (CMSA) Sprinklers.” This was a composite of the earlier definitions that included Large Drop Sprinklers, Special Sprinklers, and Specific Application Control Mode Sprinklers. The Section …

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