From the perspective of a responder, any thoughts on using large diameter hose on a freestanding Storz FDC versus the old 2-1/2 inch standard two-inlet threaded fire department connection?
Thanks in advance.
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
5/2/2023 07:09:35 am
1/2 as many hoses to connect. The threads don't get mangled by the general public.
5/2/2023 08:05:41 am
Some areas already do this. Raleigh, NC and areas nearby do. Biggest thing to consider, when thinking about it from that point of view, is what the response plan/procedures dictate for the responding fire departments. Often times a quick phone call to the AHJ can provide some insight to the "why" they may operate that way as well.
5/2/2023 08:06:56 am
The Storz is same size as our supply hose, no threads, better volume of water, single hose connection, 1/3 turn for securing.
5/2/2023 08:11:59 am
I spent 20 years as a professional firefighter / officer before getting into the fire protection engineering world. The LDH to standpipe was a big push in the late 90s early 2000s, using the same logic we used in the 80s and 90s going from tin 3" supply lines to one 5"..
5/2/2023 08:20:08 am
Nothing like tugging on 100'+ of 5" uphill, at night, around a corner.... yada...yada...yada
5/2/2023 08:14:10 am
2-1/2 threads are not usually damaged (in my experience, in a city) The whole thing yes but not just the threads. The storz caps are stolen for scrap and much more expensive than a disposable 2-1/2 one. and then get filled with trash faster because its such a big hole.
5/2/2023 08:35:04 am
5/2/2023 08:45:54 am
I don’t see a clear “better” choice. I see pros and cons to both depending on what your tactics are. Norman FD uses the 5” Storz mounted on a 30° elbow for all new13 systems.
5/2/2023 08:59:22 am
That is a good question. There are legit reasons why both systems are better.
5/2/2023 09:00:23 am
As others have said, definitely pros and cons. We are in an area where it's a mixed bag. That concerns me because if we were to have a mass fire event (think of a terrorist attack by way of arson on multiple buildings) and other local departments had to respond, they may not have the proper hook ups on the trucks. I'm in favor of choosing one or the other for an entire state or area.
5/2/2023 09:33:18 am
5/2/2023 10:06:09 am
Can anyone explain the UL listing for the Storz connections?
5/2/2023 10:26:43 am
I've seen some Storz caps that have a small hole drilled in the center, assumed for that reason, we do not ask for it and its not factory. If there is a ball drip (installed properly) on the FDC line, that should not happen with a slowly leaking check valve. Of course I don't want to take a 5" cap off with 100psi behind it either, if I could even get it to budge.
5/2/2023 12:30:59 pm
I personally look at FDC location and accessibility. If the FDC is close to a capable location for an apparatus to park, then Storz. If you are up a hill, behind a few fences, or a ways away, 2 2-1/2" outlets would be preferred.
5/2/2023 03:01:23 pm
From a responder perspective? Storz rules. The threads don't get mangled, single hose is easier to tap into and use.
5/3/2023 01:25:09 pm
Here are my two cents....
5/3/2023 02:02:04 pm
I heard that NFPA is going to start limiting the flow thru a storz to 500 gpm for a 4" and 750 gpm for a 5". So I guess we'll see FDC's that area siamese storz?
5/3/2023 10:04:14 pm
In all jurisdictions of which I have been an inspector it has been a requirement for storz fittings on all FDC’s.
5/24/2023 02:04:00 pm
Hudson Fire has always used 4" Stortz, with a 30 degree down adapter
Leave a Reply.
Subscribe and learn something new each day:
Top May 2023 Contributors
Get 100 Days of Free Sample Questions right to you!
PE PREP SERIES