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What is the correct procedure for determining the quantity of the reserve amount of foam, such as FP 3%, for a plant?
I've looked specifically through NFPA 11 and NFPA 16, and can't determine it. Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
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Has anyone dealt with the robotic parking garages?
The 2021 IFC/IBC Section 903.2.10.2: Mechanical-access enclosed parking garages. An approved automatic sprinkler system shall be provided throughout buildings used for the storage of motor vehicles in a mechanical-access enclosed parking garage. The portion of the building that contains the mechanical-access enclosed parking garage shall be protected with a specially engineered automatic sprinkler system. Some of the articles I read indicated a water mist with foam. Completely new thought processes to go through for these since there is very little access for fire personnel. Any thoughts on where to begin or what to read would be appreciated. Thanks. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe I am a fire sprinkler fitter a military installation. Have a question regarding low expansion foam systems with the use of Viking Grate nozzles.
Of course with the concerns of AFFF, there are many issues and decisions flying around about the existing systems we have out here in our aircraft hangars. Is it acceptable to use the Viking grate nozzles without the low expansion foam? How does this provide any fire protection? Obviously, this is not how the system was designed, in my opinion. Please help me understand how this can be acceptable. I appreciate any and all input. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe We have a project for an NFPA 11 foam system. The foam system is used to protect oil storage tanks at different terminal facilities.
Under Chapter 12 of NFPA 11 (2021 Edition), who is the party that inspects and signs off on these systems as the AHJ (Authority Having Jurisdiction)? Is it the local jurisdiction's fire marshal, the facility's insurance company, or the facility itself? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe NFPA 11 identifies several materials for foam concentrate pipe & valves, including brass, bronze, stainless steel (304 or 316), or other material in accordance with foam concentrate manufacturer's certification of compatibility with the foam concentrate as approved by the AHJ. [NFPA 11-2016 4.7.1.1]
Can we use hot-dipped carbon steel pipe to meet this requirement after the foam pump to the foam chamber of the cone roof tanks? The distance is more than a mile long (1.2 miles, 2 km). Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe We have scenario where we are using foam system under NFPA 11 for a floating roof tank with Crude Oil.
Based on our previous calculation for a prior tank the fire water demand is 1,926 gpm so we have existing 2,000 gpm pump to be able to supply the required flow. But an additional Crude Oil tank has been added and we have run our new hydraulic calculations and we come up with 4,496 gpm new flow requirement. Is there a way we can still use the existing fire pump? Submitted anonymously and posted for discussion. Discuss This | Submit Your Question | Subscribe |
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