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  1. #1
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    Default "High Pressure" 3 in. hose

    If this has been discussed here my apologies - couldn't find anything by searching this forum.

    Had a chance for a quick stop at one of the Las Vegas, NV stations. Captain of the engine just returning gave me a quick tour of the rig (Pierce Quantum - sweet). They're carrying around 200' of "high pressure" 3 in. hose. As I understood his reply to my question it's on the bed for relay pumping ops. Didn't have the time to get into it further.

    Can any one of you enlighten me on this?

    Thanks in Advance,
    Mike


  2. #2
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    Mike,

    I think it was Fire engineering that had a write-up on this, but I don't remember what month... But they use the high pressure hose for pumping the standpipe system for the tall hotels and such... In the article they we're pumping the FDC at the Stratosphere tower which required over 600 psi to get enough flow to top... Want to say 1000 gpm...

    But on the set-up one engine tied to hydrant then pumped 300 psi to another engine which in turn throttled up and pumped an additional 300 psi to supply 600+ psi into the FDC for the Stand pipe system...

    On edit.. Found this in a search back from 2000...

    BIG PAULIE
    01-05-2000, 04:13 PM
    In Las Vegas we have a building called the Stratosphere tower that is about 135 stories up. It takes a engine pressure on the bottom between 550 and 600 psi to get the required flows to the top. We have done this operation three times using two single stage 1500 pumpers. The first pumps 300 psi into the second. The second pump does the work of pumping 300 psi (net engine pressure) however with the assistance of the incoming pressure of 300 from the first pump it has a pump discharge pressure of 600 psi. Flow tests from the top proved about a 1100 gpm flow. Kinda a hairy operation but we don,t have a choice. We use high pressure 2-1/2" hose with a burst pressure of 1850 psi and a service test pressure of 600 psi. We have never had a accident yet.

    Jason
    Last edited by TAFDTruck5FF; 09-02-2008 at 11:49 AM.

  3. #3
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    Deva

    TAFD is correct, but alot of our new highrises call for higher pressures. That is why we are carrying it. But it is not 3" it is 2 1/2' rated at 600 psi. each Engine is currently carrying 200 ft. as we replace our 2 1/2 I look for the 200 ft. to increase but with budget constrants we had to start small.

  4. #4
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    TFAD and LVFRE1

    Thanks much for the replys - hadn't thought about pumping Stratosphere or the big casinos - try and stay out of LV proper if I can but that's one of those "OF COURSE DUMMY" things.

    Btw LVFRE1 - your folks out at Durango (141?) were very courteous 'specially since they were just coming in off a run.

    Mike

  5. #5
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    Good to hear take care and next time come downtown to station 1.

  6. #6
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    Ours in NY have much heavier couplings and are required to be roped to the rig and the stand pipe along with two ecc's assigned to the operation.

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