• Foam chamber in geodesic dome tank roof

    Is it possible to install foam chamber in geodesic dome tank roof  (witn internal floating roof) instead of foam chamber in shell tank?? I have not found something about in NFPA 11. What criteria I should take i...
    created by mignot
  • Number of chamber in vertical storage tanks

    Hello. A customer of mine is asking me to increase the number of foam chamber in a vertical storage tank, using 4 foam chambers instead of 2 required per NFPA 11 and the manufacturer recommendation, using the same tot...
    last modified by jfacevedob
  • driver sizing for fire pumps

    Hello, how do drivers for fire pumps in NFPA 20 sprinkler installations have to be sized correctly? Do the drivers have to be sized only up to the 150% of the rated flow or do the drivers have to be sized to the non-o...
    created by marcus.braun
  • FM200 System - Nozzle Consideration For Multi heights

    Dear All  ,    Subject : Clean agent system ( FM200 Gas ) Nozzle Location In multi height area of Enclosure    Good Day ,    Enclosure having multi heights in the FM200 System pro...
    last modified by ashikpn
  • Technical Background of the fire pump test

    Hi, I'm looking for the technical background of the annul test condition of the fire pumps. Especially, Why do I need to do the fire pump test under 150% of the rated capacity flow. If someone has the information ab...
    last modified by j.k.park
  • Clarification of NFPA 13R

    All, I am trying to determine how this is applied to an Apartment Building. It doesn't show up in the Appendix? Am I correct in saying it only applies where Exterior Balconies, Exterior Decks and Ground Floor Patios...
    last modified by ncarter
  • Bonding of an NFPA 13 System

    The building inspector is requiring an NFPA 13 sprinkler system to be bonded based on the 2017 NEC Section 250.104  Has anyone else run across this?  Here is what both sections state. Thank you, 8.18 El...
    last modified by cox
  • NFPA 13R Expert Required

    NFPA 13R Expert Required I have a project that requires an expert in the implementation details NFPA 13R compliant water-based fire sprinkler systems installed in the attics of condominiums and apartments. Complying ...
    last modified by drboblewis
  • Fire Door Inspections

    What certifications are required to conduct annual Fire Door Inspections per NFPA 80?
    last modified by tmchugh
  • NFPA 770

    Hello NFPA experts, I have a question regarding NFPA 770, when it will be available 
  • Sprinkler in Metro Station

    Dear Sirs in NFPA 130 chapter 5 (fire protection System in Stations), is mandatory to install a sprinkler system, in the following rooms, Garbage or trash, Storage areas, concessions areas, or other areas with si...
  • fire alarm and signaling code

    hi everyone,  I am new to the field and i need your advice. i couldn't find a rule of addressable fire system in NFPA 72, where does require to install "addressable fire system" and "conventional fire system...
    last modified by gk.karkashadze
  • In-rack sprinklers for high storages

    Hello NFPA Xchange, I have a question about the sprinkler system in high storage. Does any of you have experience with rack storage of 130,000 sq feet in the base and 100 ft height? I can not find in NFPA 13 stan...
    last modified by nikolanmiletic
  • Fire Protection in MRI, CT Scan, X Ray, Fluoro rooms

    Which fire protection system would you recommend for MRI, CT Scan, X Ray, Fluoro rooms? NFPA99, NFPA13, NFPA101, nfpa2001, healthcare section
    Sandip Prakash Khairnar
    last modified by Sandip Prakash Khairnar
  • Kitchen suppression electrical actuation

    I am reviewing plans for a kitchen fire suppression system where the means for actuation is battery powered and the backup power source is also battery powered. Engineers are telling me that the battery life is 6 to 9...
    last modified by matt.knott
  • Fire Door - Bottom Clearance - NFPA 80 Section

    Hello,   In a previous edition of the NFPA 80 Code Standards, section specifies the maximum clearance between the bottom of a fire-rated door and the finish floor as 3/4" max. I looked at the 2019 edit...
    last modified by tinmanlieu
  • Dry sprinkler head!

    Why nobody sells dry sprinkler heads with thread size less than 1" ? May be are not allowed thread sized 1/2" and 3/4"?
    last modified by niko
  • Ceiling Void - Part of Light Hazard

    Dear NFPA Staff,   I understood that NFPA 13 has required quick-response type sprinkler systems in light-hazard occupancy.    In a light hazard occupancy, ceiling void (false ceiling) seems more than ...
    last modified by babu
  • Can a building owner remove a fire pump?

    I have a building owner that has a 38 year old fire pump that only supplied two standpipes in a 4 story apartment building. It did not supply sprinklers. About 10 years ago we removed the hoses and appliances in the b...
    last modified by m69421
  • Necesito una Bomba hidraulica para Prueba Hidrostatica de Red Contra Incendio (red de Hidrante), alguna marca o modelo Listada????

    Que bombas listadas hay???Fire Protection Systems
    last modified by parce@suatrans.pe