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  1. santelmo1

    Boiler DBB valves location

    Please help: Any guidance or requirements for an industrial boiler (per NFPA-85) double block and bleed valve location or spacing respect to the boiler ?
  2. santelmo1

    NFPA 85 FUEL GAS DOUBLE BLOCK AND VENT VALVES

    I would like to know if there is any restriction (example: environmental) from the AHJ in California for the NFPA85 requirement on the fuel gas system safety vent valve.

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