ML12163A716
| ML12163A716 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 01/12/2012 |
| From: | - No Known Affiliation |
| To: | Division of License Renewal |
| References | |
| Download: ML12163A716 (3) | |
Text
1 LimerickNPEm Resource From:
Christopher.Wilson2@exeloncorp.com Sent:
Thursday, January 12, 2012 10:54 AM To:
Kuntz, Robert
Subject:
RWCU Pump bolting Attachments:
Pages from UFSAR Chapters 1-4.pdf
- Rob, As a follow-up to Bill Holston from our phone call Table 3.9-6 (p) of the UFSAR clearly shows the bolting as low strength (less than 150 KSI)
Chris Wilson Exelon Nuclear KSQ License Renewal 610-765-5667 (office) 609-709-3249 (cell) 200 Exelon Way, KSA/2-E
- This e-mail and any of its attachments may contain Exelon Corporation proprietary information, which is privileged, confidential, or subject to copyright belonging to the Exelon Corporation family of Companies. This e-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this e-mail is strictly prohibited and may be unlawful. If you have received this e-mail in error, please notify the sender immediately and permanently delete the original and any copy of this e-mail and any printout. Thank You. **************************************************
Hearing Identifier:
Limerick_LR_NonPublic Email Number:
434 Mail Envelope Properties (9A15F707EB47A04D882D9FEB352EDDF80399372F)
Subject:
RWCU Pump bolting Sent Date:
1/12/2012 10:54:14 AM Received Date:
1/12/2012 10:54:22 AM From:
Christopher.Wilson2@exeloncorp.com Created By:
Christopher.Wilson2@exeloncorp.com Recipients:
"Kuntz, Robert" <Robert.Kuntz@nrc.gov>
Tracking Status: None Post Office:
cccmsxch12.energy.power.corp Files Size Date & Time MESSAGE 1125 1/12/2012 10:54:22 AM Pages from UFSAR Chapters 1-4.pdf 11986 Options Priority:
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Recipients Received:
LGS UFSAR CHAPTER 03 3.9-204 REV. 13, SEPTEMBER 2006 Table 3.9-6(p)
RWCU PUMP Following is a summary of the design calculations on the RWCU pump (B, C only):
CALCULATED ALLOWABLE Pump Part(1)
STRESS (psi)
STRESS (psi)
Casing wall 10,820 12,814 Cover bolting 20,000 25,000 Pedestal bolt (shear) 18,015 44,000 Motor Part(2)
Motor foot bolts (shear) 174 60,000 Pump pedestal bolt (shear) 194 60,000 Foundation bolting 230 60,000 Following is a summary of the design calculations on the A RWCU pumps:
Part(1)
Calc. Stress (psi)
Allowable Stress (psi)
Pump Suction Nozzle 12,774 (U1) 15,000 1,582 (U2)
Pump Discharge Nozzle 12,824 (U1) 17,500 1,546 (U2)
Motor Case Outlet Nozzle 5,995 (U1) 17,500 5,995 (U2)
Motor Case Inlet Nozzle 5,997 (U1) 17,500 5,997 (U2)
Pump Support Flange 3,437 (U1) 25,833 (U1)
Bolts (shear) 3,325 (U2) 11,800 (U2)
Pump Case/Motor Case Studs 23,229 (U1) 25,000 23,229 (U2)
(1)
ASME Code calculations.
(2)
Non-ASME Code calculations.