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wlrun3@aol.com

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centrifugal charging pumps
« on: Apr 05, 2007, 11:21 »

   ...millstone 3 (four loop westinghouse 84) has centrifugal charging pumps as opposed to positive displacement...are there others...


Offline Nuclear NASCAR

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Re: centrifugal charging pumps
« Reply #1 on: Apr 05, 2007, 11:25 »
Callaway also has centrifigul charging pumps.  Of course, we're also a Westinghouse 4 loop.
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Offline Roll Tide

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Re: centrifugal charging pumps
« Reply #2 on: Apr 05, 2007, 12:06 »
Sequoyah (4-loop W) also has CCP (PD abandoned years ago).

Turkey Point (3-loop W) still has PD pumps. Maintenance headache.
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alphadude

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Re: centrifugal charging pumps
« Reply #3 on: Apr 05, 2007, 05:40 »
Positive displacment pumps can present a real danger more so than cent. pump. they will pump no matter what even with the down stream valve closed and then KFB.

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Re: centrifugal charging pumps
« Reply #4 on: Apr 07, 2007, 11:55 »
D.C. Cook (four loop Westinghouse) has two centrifugal and one positive displacement per unit. We only run the centrifugal pump but we maintain both CCPs and the PDP. I've been here a decade and a half and have never seen the PDP run.
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alphadude

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Re: centrifugal charging pumps
« Reply #5 on: Apr 08, 2007, 04:55 »
true dat on those make up pumps, those beasts never tire and only probs i seen was where somebody isolated the seal water while running. they are solid technology from the past

 


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