• Gas Control Valve Location

    NFPA 17A states that a gas control valve for a wet chemical suppression system must be in an accessible location. I understand that this means the device must be accessible without removing or altering building elemen...
    last modified by christopher.tumeo
  • Express mains to remote valves

    Hello,             The project I am currently working on requires that some of my dry valves and pre-action cabinets are not in the designated sprinkler room.  I am running express ...
    last modified by jpotvin
  • does fire detection require if there are sprinklers?

    Dear Community,   I'm interested in if it's Allowed do not instal fire detection in area if there are instaled sprinklers?    
    last modified by gk.karkashadze
  • POTS line will not “kiss off” at the monitoring point

    I’m told that our Buildings Fire Alarm system has trouble communicating with the Central Monitoring Station (CMS). The problem description I was given is, “the POTS line will not “kiss-off” at ...
    last modified by tmulanix
  • Storage of Liquids in Underground Tanks

    Dear Community,   I wonder, which code or table is require to determine a distans from  Storage of Liquids (Fuel) in Underground Tanks to school or any public buildings?
    created by gk.karkashadze
  • For a pressurized stairway, how to determine the design number of open doors.

    NFPA 92 version 2018 mentions that it is necessary that a staircase pressurization system should work with the "design number of open doors" open, but I can't find anywhere what this number should be.  There is a...
    last modified by ben_oregan
  • Question on 211 code

    Hi Everyone,   I am purchasing a home and am having trouble finding specific codes under 211. My question is related to how stainless steel chimney liners should/should not be installed in an older masonry chimn...
    last modified by michaelmezz
  • Nitrogen in a Wet System

    A vent is required in a sprinkler system at a high point to allow trapped air to be exhausted from the system, thus having less oxygen for the metal piping to react with. Thinking "out of the box" here, would it be he...
    last modified by fm4802
  • Sprinklers system requirement for business occupants.???

    Group B located inside (not separated from) factory building ( Group F-2). Is it required to be covered by sprinklers system??, Note that factory should be covered by sprinklers system as per nfpa101 ?  See...
    last modified by amaa93.12.awwad
  • Pump room sprinklers

    In a fully sprinklered building, is it the intent of the code not to have to sprinkler a pump room housing an electrical driven fire pump when the total encloser is 2hour rated?
    last modified by maryd
  • Is Sprinkler required in Pump Room or Not?

    There is one 4 storied building using as garments factory. The building is protected with Fire Hydrant System.  My question is:  1. The pump room is outside of the main factory building and the pump room i...
    last modified by arifur_liton
  • Listed foam directional spray nozzles

    With referance to NFPA 16 edition 2019 section A.3.3.2 Discharge Device, The spray nozzles are described as following: "Spray nozzles are open, directional spray nozzles. Where supplies with an approved foam...
    last modified by mch

    Dear Community   I want to know the following answers for the questions:   1. Is it necessary that pump room (room with roof, no walls) has sprinklers with foam?  2. Can these sprinklers with foam pr...
    last modified by diogofse24@hotmail.com
  • FCI FC-72 Panel & Cards Available

    We're a small HOA in Northern CA & replacing our 32-yr old FCI FC-72 Panel. Works fine as per our Sept test & inspection  ... but we're finally upgrading. Interested to buy? Contact me privately & qui...
    last modified by hoaboardjv
  • Omission of Releasing Panels of Fire Suppression Systems within Buildings protected with a Main Fire Alarm Panel

    For new installations: kindly advise if the main fire alarm panel  protecting a building can be utilized to release and monitor the fire suppression system within the same building (does NFPA 2001 allow this?), o...
    last modified by yasminemroweh
  • kitchen wet chemical system

    We need to install a Kidde wet chemical system in our kitchen. Unfortunately, the supplier who provided the necessary support is no longer in the market. We are totally new to the system. It's a small system with one ...
    last modified by ananthars90
  • Sprinkler water storage tank - include hose stream allowances, or not?

    A golf course clubhouse building is currently sprinkler protected.  The building is remote from any municipal water service and is served domestically by a small well.  The building fire sprinkler system der...
    last modified by joseph.keller
  • Sprinkler Valves in Fire Pump Room

    Does NFPA 20-2016 allow for backflow preventers and sprinkler valves for both wet and dry sprinkler systems to be installed in the fire pump room as "related components"? The exemption in Section 4.13....
    last modified by jierardi
  • DPSA

    Dear Engineers, What is the best fire suppression solution between IG55 (ARGONITE) or DPSA for electrical room .     cdt,
    created by yassin.promep
  • water tank capacity for sprinkler system

    Hi! I would appreciate your help with the interpretation of the following: On NFPA 13 (2019), paragraph states that "the minimum water supply shall be available for the minimum duration specified in Chapter 1...
    last modified by lizettelalli