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  1. sprinkler1000

    Sidewall sprinkler in vertical change in ceiling

    NFPA 13 permits the installation of sidewall sprinkler in a vertical change in ceiling? 8.7.4.1.4.1 "Where soffits exceed more than 8 in in width or projection from the wall, pendent sprinklers shall be installed under the soffit" can be interpreted as allowing this configuration if pendent...
  2. sprinkler1000

    Sprinkler ordinary temperature selection criteria

    What would be the choice criteria between the two temperature ratings that manufacturers have for ordinary temperature (135 or 155 ºF)? Ambient temperatures are normal. Datasheet also specifies the same máximum ambient temperature for both (100ºF). thanks
  3. sprinkler1000

    Obstruction to sprinkler discharge for in-rack sprinkler

    Dear sirs Does anybody knows if table 8.6.5.1.2 from NFPA 13 Ed 2016 applies to in-rack sprinklers? Ítem 8.13.5 Obstruction to in-rack discharge says: "In-rack sprinklers shall not be required to meet the obstruction criteria and clearance from storage requirements of Section 8.5". No...
  4. sprinkler1000

    K5.6 sprinkler for storage

    Dear Fórum: Sprinkler with K5.6 are permitted for protecting storage if the criteria is density/área (OH-2 in my case), even thou they are not specifically listed for protecting storage. I am correct? thanks
  5. sprinkler1000

    NFPA 14 and grooved joints

    We could not find any reference to grooved joints in piping in NFPA 14. ¿Are they allowed as a piping joining method in non sprinkler protected spaces?
  6. sprinkler1000

    Roof height for sprinkler K5.6

    Sirs: I understand that there is no limit for roof height (deflector height) in NFPA 13 for sprinklers with 5.6K. Beyond that, is it good practice to design with 5.6 K at 60 ft, or they should be with a higher discharge coefficient? I have read discussions on this issue about vaporizing of...
  7. sprinkler1000

    QR vs SR

    Hello Fórum: ¿In a mercantile occupancy (OHII), given that the design área reduction is not an issue, is there any advantage or is it advisable to specify QR over SR sprinklers? They are a few dollars more expensive, but from the technical side are QR preferable? I want to know what is common...
  8. sprinkler1000

    Minimum schedule for welding

    ¿Is there a mínimum thickness required for pipes that will be joined by welding? ¿Is Schedule 10 OK for welding? Thanks
  9. sprinkler1000

    Number of exits

    The number of exits required is based on the occupant load. When we are dealing with a multistory building, and enclosed staircases, there is no doubt that each enclosed staircase is an exit. But, sometimes, when we deal with buildings with few floors, is common to have stairs that are not...
  10. sprinkler1000

    Show glasscases in shopping center stores

    Dear Sirs: We are currently dealing with sprinkler systems in shopping center stores. I have doubts if sprinklers are required in the showcases with glass facing to the shopping corridor. Usually these spaces (don't know the exact word in english) are from ceiling to floor, sometimes open to...
  11. sprinkler1000

    Elevator shaft enclosure

    Gentlemen: We are working in a 12 floor office and hotel building. I understand that elevator shafts constitute a vertical opening that must be protected to provide fire and smoke barrier between the shaft and the floors.(8.6.4 NFPA 101 ed 2012). Elevator door comunicates directly to the...
  12. sprinkler1000

    NFPA 14 Handbook

    Hello Forum I believe NFPA has not published any handbook on NFPA 14 (Standpipe). Does anybody know any source for better interpretation of this code? Thanks
  13. sprinkler1000

    Sectioning with supervised valves in shopping mall

    We are working in a sprinkler project for a shopping mall that is being constructed. Doubts about the criteria for installing sectioning supervised valves arise. Is recommended to leave a supervised valve for every store, to isolate the rest of the mall in case of tenant change/renovation etc? I...

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