ML23306A278

From kanterella
Jump to navigation Jump to search
Final Safety Analysis Report
ML23306A278
Person / Time
Site: 05200050
Issue date: 11/02/2023
From:
NuScale
To:
Office of Nuclear Reactor Regulation
Shared Package
ML23306A273 List:
References
LO-152903
Download: ML23306A278 (1)
v • d • e


Text

NuScale Final Safety Analysis Report Mechanical Systems and Components Table 3.9-16: Active Valve List Valve No. Description ASME Class Function1 ASME Class 1, 2, and 3 Chemical and Volume Control System CVC-AOV-0336 CVCS Discharge Isolation Valve 3 5 CVC-SV-0404 RPV High Point Degasification Isolation Valve 3 5 CVC-AOV-0089 Demineralized Water Supply to CVC Makeup Upstream Isolation 3 3 Valve CVC-AOV-0090 Demineralized Water Supply to CVC Makeup Downstream 3 3 Isolation Valve Containment System CVC-CKV-0323 Pressurizer Spray Check Valve 3 65 CVC-CKV-0329 CVCS Injection Check Valve 3 65 CVC-HOV-0324 Pressurizer Spray Outboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0325 Pressurizer Spray Inboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0330 CVCS Injection Outboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0331 CVCS Injection Inboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0334 CVCS Discharge Inboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0335 CVCS Discharge Outboard Containment Isolation Valve 1 1, 2, 3, 4 CVC-HOV-0401 RPV High Point Degasification Inboard Containment Isolation 1 1, 2, 3, 4 Valve CVC-HOV-0402 RPV High Point Degasification Outboard Containment Isolation 1 1, 2, 3, 4 Valve CE-HOV-0001 Containment Evacuation Inboard Containment Isolation Valve 2 2, 3, 4 CE-HOV-0002 Containment Evacuation Outboard Containment Isolation Valve 2 2, 3, 4 CFD-HOV-0021 Containment Flooding & Drain Outboard Containment Isolation 2 2, 3, 4 Valve CFD-HOV-0022 Containment Flooding & Drain Inboard Containment Isolation 2 2, 3, 4 Valve RCCW-HOV-0184 Reactor Component Cooling Water Inlet Outboard Containment 2 2, 3, 4 Isolation Valve RCCW-HOV-0185 Reactor Component Cooling Water Inlet Inboard Containment 2 2, 3, 4 Isolation Valve RCCW-HOV-0190 Reactor Component Cooling Water Outlet Inboard Containment 2 2, 3, 4 Isolation Valve RCCW-HOV-0191 Reactor Component Cooling Water Outlet Outboard 2 2, 3, 4 Containment Isolation Valve FW-HOV-0137 Feedwater Isolation Valve 2 2, 3, 4 FW-HOV-0237 Feedwater Isolation Valve 2 2, 3, 4 FW-CKV-0136 Feedwater Isolation Check Valve 2 3 FW-CKV-0236 Feedwater Isolation Check Valve 2 3 MS-HOV-0101 Main Steam Isolation Valve 2 2, 3, 4 MS-HOV-0201 Main Steam Isolation Valve 2 2, 3, 4 MS-HOV-0103 Main Steam Isolation Bypass Valve 2 2, 3, 4 MS-HOV-0203 Main Steam Isolation Bypass Valve 2 2, 3, 4 Decay Heat Removal System DHR-HOV-0111 Decay Heat Removal System Actuation Valve 2 3, 4 DHR-HOV-0121 Decay Heat Removal System Actuation Valve 2 3, 4 DHR-HOV-0211 Decay Heat Removal System Actuation Valve 2 3, 4 DHR-HOV-0221 Decay Heat Removal System Actuation Valve 2 3, 4 NuScale US460 SDAA 3.9-79 Draft Revision 2

NuScale Final Safety Analysis Report Mechanical Systems and Components Table 3.9-16: Active Valve List (Continued)

Valve No. Description ASME Class Function1 Emergency Core Cooling System2 ECC-POV-0001A Reactor Vent Valve A 1 1, 3, 4 ECC-POV-0001B Reactor Vent Valve B 1 1, 3, 4 ECC-POV-0002A Reactor Recirculation Valve A 1 1, 3, 4 ECC-POV-0002B Reactor Recirculation Valve B 1 1, 3, 4 Safety and Relief Valves RCS-PSV-0003A Reactor Safety Valve A 1 1, 3 RCS-PSV-0003B Reactor Safety Valve B 1 1, 3 SGS-RV-0102 Steam Generator System Thermal Relief Valve 2 2 SGS-RV-0202 Steam Generator System Thermal Relief Valve 2 2 Non-Code Class Valves Condensate and Feedwater System FW-AOV-0134 Feedwater Regulating Valve NC 67 FW-AOV-0234 Feedwater Regulating Valve NC 67 FW-CKV-0135 Backup Feedwater Check Valve NC 67 FW-CKV-0235 Backup Feedwater Check Valve NC 67 Main Steam System MS-AOV-0102 Backup Main Steam Isolation Valve NC 67 MS-AOV-0202 Backup Main Steam Isolation Valve NC 67 MS-AOV-0104 Backup Main Steam Isolation Bypass Valve NC 67 MS-AOV-0204 Backup Main Steam Isolation Bypass Valve NC 67 1 - Function 1 - Reactor coolant pressure boundary 2 - Containment isolation 3 - Accident mitigation 4 - Safe shutdown 5 - Nonsafety-related, but provide an augmented quality function (NRC Quality Group C/D boundary) 6 - Nonsafety-related, but provide an augmented quality function (NRC Quality Group C/D boundary, backup containment isolation) 67 - Nonsafety backup to a safety-related function (Section 15.0.0.6.6) 2 - Trip and reset valves are included with each RVV and RRV.

NuScale US460 SDAA 3.9-80 Draft Revision 2

NuScale US460 SDAA NuScale Final Safety Analysis Report Table 3.9-18: Valve Augmented Requirements Valve No. Description Valve / Function Augmented ASME IST Type3 Notes Actuator1 Position Function(s)2 Class / IST Category Chemical Volume and Control System CVC-AOV-0336 CVCS Discharge BALL Closed Active BDBE Class 3 Position Verification Test N/A5 Isolation Valve Remote AO Containment Isolation Category A Exercise Full Stroke/QuarterlyCold Shutdown Failsafe Test/QuarterlyCold Shutdown Leak Test Performance Assessment Test CVC-SV-0404 NDS Supply to Reactor GLOBE Closed Active BDBE Class 3 Position Verification Test N/A5 Module IsolationRPV Remote SO Containment Isolation Category A Exercise Full Stroke/QuarterlyCold High Point Degasification Shutdown Solenoid Valve Failsafe Test/QuarterlyCold Shutdown Leak Test CVC-CKV-0329 CVCS Injection Check Nozzle Check Closed Active BDBE Class 3 Check Exercise/Cold Shutdown 44, 5 3.9-94 Valve Containment Isolation Category Leak Test A/C CVC-CKV-0323 Pressurizer Spray Check Nozzle Check Closed Active BDBE Class 3 Check Exercise/Cold Shutdown 44, 5 Valves Containment Isolation Category Leak Test A/C Notes:

1. AO air operated CVCS chemical volume and control NPM NuScale Power Module RPV reactor pressure vessel Mechanical Systems and Components
2. Valves with augmented test requirements have a beyond-design-basis event function and a Regulatory Guide 1.26, footnote 5, class break function (valves of high leaktight integrity).are relied on in the safety analyses, and these components either provide a nonsafety backup to a safety-related function or are nonsafety-related that provide an augmented quality function. The design does not use safety-related electric power to mitigate accidents or for the safe shutdown of the NPM; therefore, all valves listed have an active-to-failed function to transfer to its backup position on loss of motive power. Valves with an active function are tested by observing the operation of the actuator upon loss of valve actuating power.
3. Cold Shutdown Outage as defined in ASME OM Code, Paragraph ISTA-2000 is Mode 3, safe shutdown, with all reactor coolant temperatures < 200 degrees F.

The term cold shutdown is used throughout Section 3.9.6 for clarity with the OM Code requirements (Section 3.9.6.4.1).

Draft Revision 2

4. Backup CVCS Check Valves: The backup CVCS check valves are normally closed, nozzle check valves. These valves cannot be full- stroke or part-stroke exercised closed during plant operation because system flow must be reversed to demonstrate valve closure. The nozzle check design is a spring-to-close design. Nonintrusive testing can be used to verify valve closure (safety-function position) at cold shutdown. Normal CVCS operation satisfies the open (nonsafety-function position) exercise for these valves pursuant to ISTC-3550, Valves in Regular Use, at a frequency that satisfies the requirements for augmented testing by periodically measuring line flow and pressure to confirm the valves are fully open.
5. Backup Containment Isolation Valves: Third isolation valves that provide a nonsafety backup function as defined by Regulatory Guide 1.26, C.2(c) footnote 6 as NuScale US460 SDAA NuScale Final Safety Analysis Report having high leaktight integrity. These valves define the NRC Quality Group C/D and Seismic I/III classification break. The power operated valves receive a nonsafety containment isolation signal.

3.9-95 Mechanical Systems and Components Draft Revision 2

Table 3.11-1: List of Environmentally Qualified Equipment NuScale US460 SDAA NuScale Final Safety Analysis Report Located in Harsh Environments (Continued)

Description(4)(5) Environmental Environmental Qualification Program Environmental PAM Type(2) Operating Time (Hrs)

Qualification Qualification Qualification Zone(1) Environment Category(3)

I&C Separation Group A CNV-5, RXBP-1 Harsh Electrical A B,C,D 720 Electrical Penetration Mechanical Assembly (EPA)

I&C Separation Group B CNV-5, RXBP-1 Harsh Electrical A B,C,D 720 Electrical Penetration Mechanical Assembly (EPA)

I&C Separation Group C CNV-5, RXBP-1 Harsh Electrical A B,C,D 720 Electrical Penetration Mechanical Assembly (EPA)

I&C Separation Group D CNV-5, RXBP-1 Harsh Electrical A B,C,D 720 Electrical Penetration Mechanical Assembly (EPA)

CRDM Power 2 Nozzle CNV-5, RXBP-1 Harsh Electrical A N/A 720 3.11-13 Electrical Penetration Mechanical Assembly (EPA)

Environmental Qualification of Mechanical and Electrical Main Steam Isolation Valve RXBP-1 Harsh Electrical A N/A 1 (MSIV) #1 and #2 Mechanical B 720 MS Isolation Bypass Valve RXBP-1 Harsh Electrical A N/A 1 (MSIBV) #1 and #2 Mechanical B 720 Feedwater Isolation Valve RXBP-1 Harsh Electrical A N/A 1 (FWIV) #1 and #2 Mechanical B 720 Feedwater Isolation Check RXBP-1 Harsh Mechanical A N/A 1 Valve #1 and #2 B 720 RCCW Supply CIV, Inboard RXBP-1 Harsh Electrical A N/A 1 and Outboard Mechanical B 720 Equipment RCCW Return CIV, Inboard RXBP-1 Harsh Electrical A N/A 1 and Outboard Mechanical B 720 RPV High Point Degas CIV, RXBP-1 Harsh Electrical A N/A 1 Draft Revision 2 Inboard and Outboard Mechanical B 720 RPV High Point Degas RXBP-1 Harsh Electrical A N/A 1 Solenoid Valve Mechanical B 720 PZR Spray Flow Check RXBP-1 Harsh Mechanical A N/A 1 Valve B 720

Table 3.11-1: List of Environmentally Qualified Equipment NuScale US460 SDAA NuScale Final Safety Analysis Report Located in Harsh Environments (Continued)

Description(4)(5) Environmental Environmental Qualification Program Environmental PAM Type(2) Operating Time (Hrs)

Qualification Qualification Qualification Zone(1) Environment Category(3)

PZR Spray CIV, Inboard RXBP-1 Harsh Electrical A N/A 1 and Outboard Mechanical B 720 CVC Injection Flow Check RXBP- Harsh Mechanical A N/A 1 Valve B 720 CVC Injection CIV, Inboard RXBP-1 Harsh Electrical A N/A 1 and Outboard Mechanical B 720 CVC Discharge CIV, RXBP-1 Harsh Electrical A N/A 1 Inboard and Outboard Mechanical B 720 CVC Discharge Air RXBP-1 Harsh Electrical A N/A 1 Operated Valve Mechanical B 720 Containment Flood and RXBP-1 Harsh Electrical A N/A 1 Drain CIV, Inboard and Mechanical B 720 Outboard 3.11-14 Containment Evacuation RXBP-1 Harsh Electrical A N/A 1 CIV, Inboard and Outboard Mechanical B 720 Environmental Qualification of Mechanical and Electrical Central Hydraulic Power RXBG-8 Harsh Electrical A N/A 1 Unit Skid A and Skid B Mechanical B 720 Passive Autocatalytic CNV-4 or CNV-5 Harsh Mechanical B N/A 720 Recombiner (PAR)

Containment Narrow Range CNV-6 Harsh Electrical A N/A 720 Pressure Element A/B/C/D Containment Wide Range CNV- Harsh Electrical A B,C,D 720 Pressure Element A/B Containment Level RXBP-1, CNV Harsh Electrical A N/A 720 Indication A/B/C/D CNV-6 Equipment SG #1 and SG #2 Main RXBP-1 Harsh Electrical A N/A 720 Steam Temperature Indication A/B/C/D Draft Revision 2 FWIV #1 Position Indication RXBP-1 Harsh Electrical A B,C,D 720 A/B FWIV #2 Position Indication RXBP-1 Harsh Electrical A B,C,D 720 A/B

Table 6.2-7: Classification of Structures, Systems, and Components NuScale US460 SDAA NuScale Final Safety Analysis Report SSC Location SSC Augmented Quality Group/Safety Seismic Classification (Note 1) Classification Design Classification (Ref. RG 1.29 or RG 1.143)

(A1, A2, B1, B2)

Requirements (Ref RG 1.26 or RG 1.143) (Note 4)

(Note 2) (Note 3)

CNTS, Containment System All components (except as listed below)- RXB A1 None B I

  • CIVs (CVC PZR spray, RPV high point RXB A1 None A I degasification, CVC injection & discharge)
  • CITFs (CVC PZR spray, RVP high point degasification, CVC injection & discharge)
  • CIV stored energy device pressure transmitters RXB A1 None N/A I (MSIV, FWIV, RCCW CIVs, CVC high point degasification CIVs, PZR spray CIVs, CVC injection & discharge CIVs, CFD CIVs, CE CIVS)
  • Containment pressure instrumentation (narrow range)
  • Containment level instrumentation
  • MS temperature sensors 6.2-68
  • Closed and open position indicators for FWIVs
  • Supply/vent hydraulic lines from CHPU to CIVs
  • CNV-RPV support ledge RXB A2 None N/A I
  • CNV CRDM support frame
  • Supply/vent hydraulic lines from CHPU to DHRS actuation valves
  • RPV high point degas solenoid valve RXB B2B1
  • Subject to in- C III
  • CVC discharge air operated valve service testing
  • Piping from PZR spray CIVs to class 3 CVC PRZ spray check valve (outside CNV)
  • Piping from CVC injection CIVs to class 3 CVC Containment Systems injection check valve (outside CNV)

Draft Revision 2

  • Piping from CVC discharge CIVs to class 3 CVC discharge isolation valve (outside CNV)
  • Piping from CVC RPV high point degasification CIVs to class 3 RPV high point degasification isolation valve (outside CNV)

Table 6.2-7: Classification of Structures, Systems, and Components (Continued)

NuScale US460 SDAA NuScale Final Safety Analysis Report SSC Location SSC Augmented Quality Group/Safety Seismic Classification (Note 1) Classification Design Classification (Ref. RG 1.29 or RG 1.143)

(A1, A2, B1, B2) Requirements (Ref RG 1.26 or RG 1.143) (Note 4)

(Note 2) (Note 3)

  • Piping from PZR spray CIVs to class 3 CVC PZR RXB B2 None C II spray check valve (outside CNV)
  • Piping from CVC injection CIVs to class 3 CVC injection check valve (outside CNV)
  • Piping from CVC discharge CIVs to class 3 CVC discharge isolation valve (outside CNV)
  • Piping from CVC RPV high point degasification CIVs to class 3 RPV high point degasification isolation valve (outside CNV)
  • Piping from CE CIVs to disconnect flange RXB B2 None D I (outside CNV)
  • Piping from (CFDS and RCCWS) CIVs to RXB B2 None D II disconnect flange (outside CNV) 6.2-69
  • Piping from class 3 CVC valves to disconnect flange (outside CNV)
  • CFD piping (inside CNV)
  • CNV test line A and B
  • Containment top support structure RXB B2 None N/A I
  • Containment pressure instrumentation (wide RXB B2 IEEE 497-2016 N/A I range) (Note 5)

PAR RXB B2 RG 1.7 N/A II

  • Closed and open position indicators (RPV high RXB B2 None N/A II Containment Systems point degasification solenoid valve, CVC Draft Revision 2 discharge AOV)
  • Flushing hydraulic line from CHPU to inboard &

outboard CIVs and DHR actuation valves

Table 17.4-1: Design Reliability Assurance Program Structures, Systems, and Components Functions, Categorization, and NuScale US460 SDAA NuScale Final Safety Analysis Report Categorization Basis (Continued)

System Function Function SSC Required to Perform System Function Basis for Function Category Categorization (A1 & B1)

CNTS (Continued)

  • CVCS piping (outside containment):

- RPV high point degasification solenoid valve to disconnect flange

- PZR spray flow check valve to disconnect flange

- Injection flow check valve to disconnect flange

- Discharge air operated valve to disconnect flange

  • Containment pressure transducers (wide range)
  • CNTS top support structure
  • Containment vessel, control rod drive mechanism support frame
  • RPV support ledge 17.4-9
  • Passive autocatalytic recombiner
  • Provides backup isolation capability for containment isolation B1
  • RPV high point degasification solenoid valve Determination by expert panel lines that may result in a loss-of-coolant event.
  • PZR spray flow check valve and informed with input from
  • CVCS discharge air operated valve methods of analysis
  • CVCS piping: (outside containment)

- RPV high point degasification CIV to reducer

- Reducer to RPV high point degasification solenoid valve

- PZR spray CIV to PZR spray flow check valve

- Injection CIV to injection flow check valve

- Discharge CIV to discharge air operated valve Reliability Assurance Program Reactor Core System (RXC)

  • Contains fission products and transuranics within the fuel A1
  • Fuel assembly Determination by expert panel rods to minimize contamination of the reactor coolant and informed with input from
  • Maintains a coolable geometry under normal operating and PRA, deterministic, and other Draft Revision 2 design-basis event conditions methods of analysis

Table 2.4-3: Module-Specific Mechanical and Electrical/Instrumentation and NuScale US460 SDAA License Conditions; ITAAC Controls Equipment (Continued)

Equipment Identifier Description EQ Qualification Seismic Class EQ Environment Program Category I 1E Category(1)

RCCW-HOV-0190 RCCWS return inboard CIV Harsh Electrical Yes Yes AB Mechanical RCCW-HOV-0191 RCCWS return outboard CIV Harsh Electrical Yes Yes AB Mechanical CE-HOV-0001 CES inboard CIV Harsh Electrical Yes Yes AB Mechanical CE-HOV-0002 CES outboard CIV Harsh Electrical Yes Yes AB Mechanical CFD-HOV-0022 CFDS inboard CIV Harsh Electrical Yes Yes AB Mechanical Module-Specific Structures, Systems, and Components Inspections, Tests, CFD-HOV-0021 CFDS outboard CIV Harsh Electrical Yes Yes AB Mechanical CVC-CKV-0323 PZR spray flow check valve Harsh Mechanical Yes N/A AB CVC-CKV-0329 CVCS injection flow check valve Harsh Mechanical Yes N/A AB CVC-AOV-0336 CVC discharge air operated valve Harsh Mechanical Yes No AB 49 CVC-SV-0404 RPV high point degas solenoid valve Harsh Electrical Yes No AB CNT-SKD-0500 Central hydraulic power unit skids Harsh Electrical Yes Yes B CNT-SKD-0600 Mechanical CNT-PE-1001A Containment narrow range pressure elements Harsh Electrical Yes Yes A CNT-PE-1001B CNT-PE-1001C CNT-PE-1001D CNT-PE-1002A Containment wide range pressure elements Harsh Electrical Yes No A CNT-PE-1002B Analyses, and Acceptance Criteria (ITAAC) Design Descriptions and ITAAC CNT-LE-1003A Containment level indication Harsh Electrical Yes Yes A CNT-LE-1003B CNT-LE-1003C CNT-LE-1003D MS-TE-1001A SG #1 main steam temperature indication Harsh Electrical Yes Yes A MS-TE-1001B Draft Revision 2 MS-TE-1001C MS-TE-1001D MS-TE-2001A SG #2 main steam temperature indication Harsh Electrical Yes Yes A MS-TE-2001B MS-TE-2001C MS-TE-2001D

Retrieved from "https://kanterella.com/w/index.php?title=ML23306A278&oldid=3641953"