Dear Forum.
NFPA 20 2013 Section 11.2.2.3 thru 11.2.2.5 discusses and has equations for modifying engine horsepower for installations with temperatures and elevation. However, is there a way to know/calculate what impact that reduction of horsepower will have on pump flow/pressure?
Any insight...
Dear Forum,
I have previously used 1" pipe as pipe size for pilot line detector lines for deluge systems. However in figures for deluge systems of cooling towers in the Annex (A.22.21.2.1 thru 22.21.2.3), it indicates 1/2" pilot line.
Has anyone seen anything that would specify NFPA 13 minimum...
Dear Forum.
I'm looking at a storage occupancy which is protected with ESFR sprinklers. The room is a long narrow room and the branchlines are running the length of the room. Due to this configuration there is only 2 branchlines with ESFRs. The adjacent room is a Ordinary Hazard occupancy...
Dear Forum,
Section 24.2.1.1 of NFPA 13 2010 states "Unless permitted by 24.2.1.2 through 24.2.1.8, all piping and attached appurtenances subjected to system working pressure shall be hydrostatically test at 200psi and shall maintain that pressure without loss for 2 hours".
NFPA 15 reference...
Dear Forum members,
I would appreciate insight and experience in regards to layout and calculation of specific application sprinklers (e.g. Tyco Ultra K17).
When you are installing additional sprinklers due to obstructions, there doesn't seem to be any 'penalty' for using extra sprinklers. i.e...
The 2010 edition of NFPA 13 has section 7.1.2.1, which states 'Relief valves will be required on all wet pipe systems that do not have auxilary air reservoirs. Previously, they were only required on gridded systems. The size of the relief valve was increased to 1/2" and the relief valve now...
Curious...has anyone come accross an escutcheon or such that would provide a 'finished' look when trimming ESFRs (1" thread) in a ceiling?
Thanks in advance.
Hello. I'm usually found hanging out on the fire protection forum but I have a problem and figured I might be able to get some good advise here.
I have a coach house in Chicago. 3 story frame with concrete footing and foundation. (1/2 1st floor below grade). I have just recently started living...
I am wondering if anyone has come accross a sidewall sprinkler with a narrow width but a very long throw. Such as could be utilized in a coridor. Kind of similar to the Reliable DH56 and 80 concept but with the emphasis on the long lenght throw rather than the width. I know there are plenty of...
This site was just recently recommended to me and I am very happy to see the level of experience and knowledge in the posts.
With that said, I’m hoping I can get some advice on the correct direction to take with a situation I’m dealing with on a project I have.
The building is a new...
