• Fire Pump performance test

    What can be done if the owner does not have the manufacturer's pump performance curve?
    mikelangel
    last modified by mikelangel
  • Flow testing of hydrants and FHC.

    Please mention the standard/s and clauses mentioning the  flow test/ other acceptable tests for 1) fire hydrants 2) hose  cabinets
    ananthars90
    last modified by ananthars90
  • Flexible coupling requirement for fire fighting pipes

    Need suggestion whether flexible coupling required or not for fire fighting pipes in a building having Expansion joint size 25mm.
    kalidas.pk
    last modified by kalidas.pk
  • Missing data Plates for Fire Pumps

    We have completed several inspections over the past month with data plates missing from Fire Pumps. This is a yellow tag itself , however it creates a red tag as we don't have the performance data for the fire pump to...
  • NFPA Approved Hydraulic Calculation Software

    I am Fire & Safety Contractor in Pakistan. Question No 1 : Is any hydraulic Software that APPROVED by NFPA. Actually my new client's buyer requirement that type of software accepted that will approved by NFPA an...
    info@emse.pk
    last modified by info@emse.pk
  • NFPA 13 & 13R

    I have a multi use building in the planning stage. It will be 3 stories tall. The basement will be storage and 1 apartment unit. The first floor will be a restaurant. And the third floor will be 3 apartment units. The...
    bltemperly
    last modified by bltemperly
  • Fire Hydrant Piping Leak

    we have recently commissioned our fire network consisting of fire hydrants and sprinklers. During the commissioning of fire pumps, it was found that pressure is dropping in the fire hydrant underground piping network ...
    ananthars90
    last modified by ananthars90
  • Inquiry- protection of rubber tire storage in racks by CMDA sprinklers. Storage above 3,7m

    Good Morning   I’m a designer at sprinkler company in Poland   Our membership number is 3162872. We have a technical issue.   We have to protect tire storage in racks by the sprinkler installation...
    tmalanowicz
    last modified by tmalanowicz
  • Fire Pump

    Dear NFPA   Does NPFA 20 strictly specify that a Fire Pump should be ULFM Listed? Our country’s fire code looks at NFPA Standards as a basis for designing fire protection systems.  I want to know al...
    romelacutim
    last modified by romelacutim
  • Pressure Tank

    We are designing a sprinkler system for which we are using a pressure tank as per NFPA 13 and NFPA 22 for a water supply.  Both of these standards have a formula which calculates the tank air pressure which is re...
    rseverini
    last modified by rseverini
  • Flow Testing Hydrants Without Pitot

    I read NFPA 291 Section 4.9 about flow testing without a pitot gauge, but I do not understand where to get the variables. Can anyone help explain the process a little better to me?
    loganweaver15
    last modified by loganweaver15
  • Pressure reading for testing new Pumps

      As per NFPA 25 Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, in Chapter 8, the 8.3.2.1.2.1 it states that if readings are above 95% of rated pump pressure, ...
    mazoon.ghalib
    last modified by mazoon.ghalib
  • 2013-2016 Edition NFPA 13:8.15.6.2 (3)

    We have a Type 3 construction of a retrofit of 100 year old assembly building with concealed space below the 1st floor that meets all the requirements of 8.15.6.2. The AHJ has questioned us, What is (3) Tight Construc...
    maasaicontracting
    last modified by maasaicontracting
  • 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
    parce@suatrans.pe
    last modified by parce@suatrans.pe
  • CMDA Storage Sprinklers

    As per NFPA 13-2019 chapter 25.2.3.1.4 for design densities between 0.2 to 0.34 gpm  CMDA sprinklers with K-8.0 or greater can be used. However, in the market from my research, there are no  listed CMDA spri...
    vantoniou
    last modified by vantoniou
  • False ceiling (Concealed spaces) Flow requirements

    I'm designing a sprinkler system in a ceiling area. I've decided to place sprinklers under and above the ceiling since the ceiling itself is combustible and there are also all electrical and HVAC installations. Are th...
    gustavocanizzo
    last modified by gustavocanizzo
  • Double interlock preaction system - full building coverage

    Are there any occupancy restrictions where a double interlock preaction system may be used?  For example, could an entire hospital (Institutional) provide sprinkler coverage with a preaction system?  It appe...
    rerickson
    last modified by rerickson
  • Dry System Delivery Times

    We have designed three dry systems for an nursing home in Tenn..  The building is divided into (3) riser systems. Each Riser covers Attic Area and Living Area in it section. Upon plan review, the S...
    gforleeg
    last modified by gforleeg
  • AWWA vs ISO/EN Ductile iron pipes

    Good Evening all, What is the difference between AWWA compliant ductile iron pipes and ISO/EN compliant ductile iron pipes? What may go wrong if I replaced them?   Regards,
    waelio
    last modified by waelio
  • Air Compressors

    I'm looking for some information regarding UL listings and air compressors for dry sprinkler systems.  Is there a requirement for the air compressor to be UL listed for this use? I know the air maintenance devic...
    dmastro
    last modified by dmastro