Kindly clarify Black steel pipe can be used in the  foam concentrate line?   As per NFPA 16 2019    Clause  Foam concentrate  pipe and valve shall me made of one of th...
    last modified by hazmanmech
  • 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...
    last modified by fridhi.mohamed
  • Centrifugal Pump Capacities in combinated fire systems

    Hi everyone, I am designing a system that has automatic sprinklers, deluge system, hoses and hydrants. Once I finish the hydraulic calculation of the systems working together, when I try to select the pump system, in ...
    last modified by gustavocanizzo
  • Gate valve

    Why should not use a supervisory switch not installed in the external network OS & Y gate valve ?   Regards  Hazman
    last modified by hazmanmech
  • Determining of Design Area in Hotel Building

    Hi,       i need expert opinion on subject mentioned, I m working in MEP contracting company as a mechanical engineer, I need to perform fire sprinkler hydraulic calculation for one of our pr...
    last modified by alisaif2012
  • Fire Protection Foreman Needed In The Cayman Islands

    Hirago is working with a top MEP company in the Cayman Islands. Our client has hired us to need to find an experienced Fire Protection Foreman to work in Grand Cayman. The Cayman Islands is only a 2-3 hour...
    created by hirago
  • fire hydrant testing

    hi. i am little bit confused about fire hydrant testing.  what is the criteria to select the number of hydrants to flow during testing.  as per AHJ, the minimum acceptable residual pressure is 50 psi. ...
    last modified by jmubarak
  • The Industry's First UL Listed Bacterial and Corrosion Inhibitor

    Introducing FSS ProGuard 295UL, the fire protection industry’s first, and only, UL Listed bacterial and corrosion inhibitor!   FSS ProGuard 295UL from Huguenot laboratories is a corrosion and bacterial inh...
    created by matt-francis
  • Fire Fighting system Requirements for Raw Material Store as a part of factory

    Greetings   Please advise about the firefighting system requirements for raw material store as a part of factory, can i follow the requirements related to factory's hazard classification, for example (Plastics f...
    last modified by eldusoky
  • pump

    prakash kumar
    last modified by prakash kumar
  • Balcony Notification

    NFPA 72: Has anyone found a reference that requires the balcony of a high rise to have notification?
    last modified by gonzalesfpe
  • Function of private hydrant

    Hi, Till now I have confusion regarding the function of the private fire hydrant which is with two hoses (2 1/2") and 4" pumper outlet, as: 01- it is mentioned in NFPA 24 that is used for delivering water to the...
    last modified by eng_m_m.abd89@yahoo.com
  • Pre-Action Control Valve location

    Your insight is highly appreciated pertaining the installation of pre- action control valve above the suspended falls ceiling, with adequate access. Dose it violate NFPA 13 ? 
    last modified by hajijm
  • Attic Sprinklers Wood Frame 13R 13D

    Please find enclosed possible solutions to the Natural Disasters of the County of Los Angeles and the City of Fort McMurray.   Sprinklers in Attic could possibly be an anti-freeze loop if the head count does not...
    created by hringline
  • Painting Sprinkler Piping

    Is there a requirement in any of the NFPA codes that require any fire sprinkler piping that is painted to be painted red?
    last modified by mwinter
  • NFPA code for open area Foam sprinkler

    Hello Everyone, We have an open area about 40x40 in which we store Gas/diesel/petrol. The area is open from 4 ends and just covered from the top(shed installed). We are suggested to install foam based sprinkler syste...
    last modified by asadkhan003
  • Oxygen Reduction Systems

    Hi All NFPA RF recently prepared and presented (via a webinar) a literature review on ORS. I have read the review, and attended the webinar, and was seriously unimpressed by the lack of experience with ORS installati...
    last modified by clements
  • Integrated System Testing - Questions from Fire Protection Engineers

    Below are answers to questions that both Jacqueline Wilmot and I received during our Webinar "Integrated System Testing – What a Fire Protection Engineer Needs to Know"   Here are some additional reso...
    last modified by smahoney
  • Hazardous Area for Ethanol in Drum Storage Room

    Hi all, need your help on HAC. For ethanol in drums (about 500kg each) in storage room (about 10 drums) with no activity to open the drum, should be classified as hazardous area or non-hazardous area? Those dru...
    created by lahar.baliwangi
  • New to Designing Sprinkler Systems with HydraCAD

    I was hired as a fire sprinkler designer 3 months ago with no experience using HydraCAD and I'm wondering if anyone would want to give me some advice. Are there any videos out there or blogs where they ...
    last modified by christophers