• DIGITAL inspection for annual fire extinguisher maintenance (seeking AHJ opinions)

    Hello,   We are looking at ways to make the annual maintenance process easier for more people, especially those in remote or rural areas who may have a hard time getting a service company to come and check their...
    mjpeters
    last modified by mjpeters
  • Test Pressure of High Pressure CO2 system distribution pipes

    For the high pressure CO2 system, especially for the distrIbution pipe system. What is the pressure test requirement according to NFPA? What is the test pressure value and shall we do air pressure test or water pressu...
    603656408
    last modified by 603656408
  • Hollow shaft motor for vertical turbine jockey pump

    Do jockey pump also requires hollow shaft motor as per NFPA 20, clause no. 7.5.1.3 or those requirements are only applicable to main/Fire pumps?
    m-arunkumar
    last modified by m-arunkumar
  • Hollow shaft motors

    Why NFPA 20 suggests hollow shaft motor for fire pumps? Can anybody clarify.
    m-arunkumar
    created by m-arunkumar
  • Elevator Recall and flow switch

    Does Fire Sprinkler riser's water flow switch initiate elevator emergency recall? In NFPA 72 "Table A.14.6.2.4" Typical Input/Output Matrix" shows water flow switch on first or second floor initiate elevator emer...
    zara.mosavat
    created by zara.mosavat
  • Galvinized Pipe and Fittings

    I have a concerned issue with using galvanized steel pipe (ASTM A53) and malleable iron fittings in a combination water supply to domestic water systems and fire sprinkler systems.   Galvanized pipe and fittings ...
    wileywilson
    created by wileywilson
  • Portable Fire Pump Testing

    Hi, Does anyone know the relevant regulations for portable fire pump testing? Fixed Diesel and electric pumps are covered in Chapter 8 of NFPA25 but I can't seem to find anything on portable pumps Cheers.
    stephen.bellwood
    created by stephen.bellwood
  • When studying about the Topics that are in NFPA 70 like Conduit fill or Grounding Requirements.Do i need to know all the contents that NFPA 70 covers for the grounding or conduit Fill. OR I just need to know where they are present in NFPA Book

    Understanding NFPA 70 
    fasi436
    created by fasi436
  • Pnueumatic Test For FM200 Piping.

    Hi Guys,   For pneumatic test can we use air pressure instead of nitrogen?     Thanks,   Naqash
    naqash.kazmi
    last modified by naqash.kazmi
  • Evaluation of Fire Pump Test Results

    #I would like to request your clarification for below standard as we have doubt to compare the pump test result which we recently done.   8.3.7.2.3 (2) Fire pump test results are no less than 95 percent of the fl...
    lapahamed
    last modified by lapahamed
  • can a fire damper be considered as weakest element for a room protected by clean agent system to evaluate peak pressure??

    Please clarify if a fire damper used for a smoke management system or air handling be considered as weakest element for a room protected by clean agent system while evaluating peak pressure during an integrity test. P...
    jmubarak
    last modified by jmubarak
  • Inspection and Testing of Sprinkler Pressure-Reducing Valves

    13.5.1 Inspection and Testing of Sprinkler Pressure-Reducing Valves 13.5.1.3 A partial flow test adequate to move the valve from its seat shall be conducted annually - How to perform the partial flow 13.5.1.2 A ful...
    lapahamed
    last modified by lapahamed
  • NFPA 25 8.3.3.4 (3) 30 minutes flow at peak load question

    Anyone have comments on how they deal with Sentence 3? :   NFPA 25 - 8.3.3.4 For installations having an automatic transfer switch, the following test shall be per-formed to ensure that the overcurrent protecti...
    dwelch
    created by dwelch
  • PRV STATION

    Hi   Could you Kindly state when and where is PRV stations used and what is the purpose? Can it be avoided by introducing a single PRV in each floor before the Zone Control Valve Assembly?   As per my know...
    josephjojoadoor
    created by josephjojoadoor
  • Hose Valves or Nonthreaded Connections in Hose Header Supply?? NFPA 20 2019

    Hi everyone! In the new edition of NFPA 20 (2019), Table 4.28 has a new column "Non-threaded connections" Is it necessary to add those connections to the hose connections? or I have to choose between them Thanks ...
    gustavocanizzo
    last modified by gustavocanizzo
  • Pressure sensor - NFPA 20

    Good day, I wanna limit the shutoff pressure of the firewater pump to a value equal to 105% of the rated head without installing a PCV on the discharge manifold. A supplier offered a pressure sensor to control the shu...
    fridhi.mohamed
    last modified by fridhi.mohamed
  • Alarm Check Valve

    Dear Pro,   i am making a list of the locations the "inspector test connection" is mandatory to be placed as we are getting alot of contractors question of its presence. NFPA 13 states that it shall be ins...
    sahawnehmajdi
    last modified by sahawnehmajdi
  • HELLO, I WILL LIKE TO HAVE MOBILE FIRE EQUIPMENTS INSPECTION CHECK LIST

    Either maintenance or inspection check list of ( fire extinguishers, water based, or others) Regards CEDRIC TIOGANG  00 237 670217108 | 696072701
    tiogangalain
    created by tiogangalain
  • Required Testing for Quick vs Normal Sprinklers

    NFPA 25 5.3.1 specifies that normal sprinklers have to be tested or replaced at 50 years and sprinklers with fast-response elements at 20 years. 1) Are these "fast-response" sprinklers referenced in 5.3.1.1.1.3 those...
    tdieruf
    last modified by tdieruf
  • Venting on Diesel Storage Tanks

    Are there requirements for venting of outdoor Storage Tanks for Diesel? I was able to find the following for Indoor Tanks: "For Class I, II and IIIA liquids the IFC requires termination of the normal vent outside the...
    aalderete
    last modified by aalderete