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  1. Rock8104

    Check Valve and Strainer Requirements

    Another Question just because I am such a newbie here. When NFPA says "listed" is that just UL or FM or is there other certifications it can have?
  2. Rock8104

    Check Valve and Strainer Requirements

    The Strainer and Check Valve are for the Control Air supply to the Deluge Valve Actuator. Thanks for the answers.
  3. Rock8104

    Check Valve and Strainer Requirements

    Newbie Here... We have a Check Valve and a Strainer for our Cooling Tower deluge system that need replaced. My maintenance group purchased some off of McMaster. My question is if there is any "certification" for these items that they have to have before being placed into a Fire Protection...

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