ML070440485
| ML070440485 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 05/12/2006 |
| From: | Taylor A Entergy Nuclear Operations |
| To: | Office of Nuclear Reactor Regulation |
| Richmond, J E, RI/DRS/EB1, 610-337-5220 | |
| References | |
| AMRM-16, Rev 0 | |
| Download: ML070440485 (26) | |
Text
VERIFICATION OF VYNPS LICENSE RENEWAL PROJECT REPORT Title of Report:
Aging Management Review of the Instrument Air System Report Number:
AMRM-16 Revision:
0 This report documents evaluations related to the VYNPS license renewal project. Signatures certify that the report was prepared, checked and reviewed by the License Renewal Project Team in accordance with the VYNPS license renewal project guidelines and that it was approved by the ENI License Renewal Project Manager and the VYNPS Manager, Engineering Projects.
License Renewal Project Team signatures also certify that a review for determining potential impact to other license renewal documents, based on previous revisions, was conducted for this revision.
Other document(s) impacted by this revision: Yes, See Attachment X No License Renewal Project Team Prepared by Date:
Andrew C. Taylor Reviewed by Date:
Lori Ann Potts Approved by Date:
David J. Lach, ENI LR Project Manager VYNPS Approval Reviewed by Date:
Approved by Date:
VYNPS Manager, Engineering Projects
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 2 of 26 REVISION DESCRIPTION SHEET Revision Number Description Pages and/or Sections Revised 0
Initial Issue
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 3 of 26 TABLE OF CONTENTS 1.0 Introduction..........................................................................................................4 1.1 Purpose...............................................................................................................4 1.2 System Description..............................................................................................4 1.3 System and Component Intended Functions.......................................................5 2.0 Screening.............................................................................................................8 3.0 Aging Effects Requiring Management................................................................10 3.1 Carbon Steel Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)........................................................................10 3.2 Carbon Steel Components (Exposed to Nitrogen on Internal Surfaces and Indoor Air on External Surfaces)........................................................................11 3.3 Stainless Steel Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)........................................................................11 3.4 Copper Alloy > 15% Zn Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)..................................................12 3.5 Bolting................................................................................................................12 3.6 Operating Experience........................................................................................12 4.0 Demonstration That Aging Effects Will Be Managed..........................................13 4.1 Instrument Air Quality Program..........................................................................13 4.2 System Walkdown Program...............................................................................14 4.3 Time-Limited Aging Analyses.............................................................................14 5.0 Summary and Conclusions................................................................................15 6.0 References........................................................................................................16 Attachments..................................................................................................................18 Components Subject to AMR..................................................................18 Aging Management Review Results.......................................................25
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 4 of 26 1.0 Introduction 1.1 Purpose This report is part of the aging management review (AMR) of the integrated plant assessment (IPA) performed to extend the operating license of Vermont Yankee Nuclear Power Station (VYNPS). This report demonstrates the effects of aging on instrument air (IA) system passive mechanical components will be adequately managed so that the intended functions will be maintained consistent with the current licensing basis as required by 10 CFR 54.21(a)(3). For additional information on the license renewal project and associated documentation, refer to the License Renewal Project Plan.
The purpose of this report is to demonstrate that aging effects for passive mechanical components will be adequately managed for the period of extended operation associated with license renewal. The approach for demonstrating management of aging effects is to first identify the components that are subject to aging management review in Section 2.0. The next step is to define the aging effects requiring management for the system components in Section 3.0. Section 4.0 then evaluates if existing programs and commitments adequately manage those effects.
Applicable aging effects were determined using EPRI report 1003056 Non-Class 1 Mechanical Implementation Guideline and Mechanical Tools (Ref. 1). This EPRI report provides the bases for identification of aging effects based on specific materials and environments and documents confirmation of the validity of the aging effects through review of industry experience. This aging management review report (AMRR), in conjunction with EPRI report 1003056, documents the identification and evaluation of aging effects requiring management for mechanical components in the IA system.
1.2
System Description
As described in UFSAR Section 10.14, the IA system includes four nonlubricated air compressors connected in parallel. The compressors discharge to two vertically mounted air receivers. Separate piping is provided at the discharge of the air receivers for the IA system and the service air (SA) system. The IA system also provides compressed nitrogen to the pneumatically-operated components within the drywell, when the primary containment is inerted, so that any component leakage will not dilute the nitrogen atmosphere. The normal source of this compressed nitrogen is from the nitrogen supply subsystem of the primary containment atmosphere control system. This portion of the IA system is also referred to as the containment air system. Backup sources of compressed nitrogen are the containment air compressor, a small nonlubricated compressor taking suction from the primary containment atmosphere, and a supply at the SRV backup nitrogen bottle station. (Ref. 2, 10, 14, 15)
The system is normally in operation. (Ref. 2)
For additional description of the system and its components, see the IA system discussion in the UFSAR. (Ref. 2)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 5 of 26 Components of the control rod drive (CRD), hydraulic control unit (HCU), nuclear boiler (NB),
SA & IA instruments (105), and SA systems with a direct IA system interface are also evaluated in this AMRR.
1.3 System and Component Intended Functions As described in UFSAR Section 10.14, the IA system provides the plant with a continuous supply of oil-free compressed air and nitrogen. Air or nitrogen is supplied to the following safety-related components:
inboard and outboard main steam isolation valves (MSIV)s reactor building railroad airlock inflatable seals safety relief valves (SRVs)
The IA system provides containment isolation for IA system lines which penetrate the primary containment. The IA system also has the intended function to prevent over-pressurization of safety-related AOV solenoids. (Ref. 2, 4)
Components of the SA system are also evaluated in this AMRR. These components are the relief valves (SR-72-3A / B) for the air receiver tanks.
Components of the control rod drive (CRD) and hydraulic control units (HCU) systems with a direct IA system interface are evaluated in this AMRR. (Ref. 3) These components are:
alternate rod insertion valves (SE-3-ARI-A / B) backup scram pilot valves (SN-3-140A / B) scram discharge volume vent and drain solenoid pilot valves (SE-3-31A / B) scram pilot valves (SO-117/8-XX-XXX), where XX-XXX symbolizes valve numbers from the 89 hydraulic control units These CRD and HCU system components are used to insert control rods during a scram.
Components and piping of the nuclear boiler (NB) system with a direct IA system interface are evaluated in this AMRR. (Ref. 27) These components are:
SRV air accumulators (S-2-13A / B / C / D)
SRV pilot valves (SE-2-71A / B / C / D)
MSIV air accumulators (S-2-5A / B / C / D and S-2-6A / B / C / D)
MSIV inboard pilot valves (SE-2-80X-Y), where X refers to the steam line and Y refers to the pilot valve designator MSIV outboard pilot valves (SE-2-86X-Y), where X refers to the steam line and Y refers to the pilot valve designator solenoid-operated air valves (FSO-2-39 and FSO-2-40) for the reactor recirculation system sample line isolation valve operators These components are used to close their associated valves.
A component of the nitrogen (N2) system is evaluated in this AMRR. (Ref. 31) This component is SR-16-19-77, the nitrogen supply safety relief valve to the containment air compressor receiver.
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 6 of 26 Components of the SA & IA instruments (105) system with a direct IA system interface are also evaluated in this AMRR. (Ref. 29) These components are the containment air compressor isolation valve air supply valves (FSO-105-1A / B). These valves are in the air supply to the valve operators for the containment air compressor containment isolation valves.
The alternate rod insertion valves in the CRD system are relied on in safety analyses to perform a function that demonstrates compliance with the Commission's regulations for anticipated transients without scram (10CFR50.62). (Ref. 5)
The scram discharge volume vent and drain solenoid pilot valves, scram pilot valves, and associated piping in the CRD and HCU systems are relied on in safety analyses to perform a function that demonstrates compliance with the Commission's regulations for fire protection (10CFR50.48). (Ref. 6)
The SRV accumulators, MSIV accumulators, pilot valves, and associated piping in the NB system are relied on in safety analyses to perform a function that demonstrates compliance with the Commission's regulations for fire protection (10CFR50.48). (Ref. 6, 30)
The SRV nitrogen supply cylinders (CYL-72-1A / B) and associated piping and valves in the IA system are relied on in safety analyses to perform a function that demonstrates compliance with the Commission's regulations for station blackout (10CFR50.63). (Ref. 33)
The IA system passive mechanical components are not relied on in safety analyses or plant evaluations to perform a function that demonstrates compliance with the Commission's regulations for anticipated transients without scram (10CFR50.62),
fire protection (10CFR50.48), environmental qualification (10CFR50.49), or pressurized thermal shock (10CFR50.61 - not applicable for BWRs). (Ref. 5, 6, 7)
For license renewal, the primary intended function of the IA system components and piping is to maintain system pressure boundary integrity. For additional information on system and component functions, see the IA system operating procedure. (Ref. 14)
For license renewal, the primary intended function of the components and piping of the NB system with a direct IA system interface is to maintain system pressure boundary integrity. For additional information on system and component functions, see the design basis document for the main steam (MS) system. (Ref. 27)
For license renewal, the components and piping of the SA, CRD, HCU, and 105 systems reviewed in this AMRR fall within the scope of this review due to active components only. (Ref.
3, 29)
System components outside of the safety class boundary of the IA and NB systems whose failure could prevent satisfactory accomplishment of safety functions [10 CFR 54.4(a)(2)] that are not reviewed in this AMRR are reviewed in AMRM-30, Aging Management Review of Nonsafety-related Systems and Components Affecting Safety-related Systems. For VYNPS this includes items such as piping, valves, pumps, and support elements outside of the safety class pressure boundary, that are required to be structurally sound in order to maintain the integrity of the safety class piping. (Ref. 4)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 7 of 26 Refer to VYNPS Report LRPD-01, System and Structure Scoping Results, for additional information on scoping and intended functions of systems and structures for license renewal.
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 8 of 26 2.0 Screening Passive, long-lived components that perform a license renewal component intended function are subject to aging management review. Bolting, flex hose, piping, tanks, tubing, and valve bodies in the IA and NB systems are passive, long-lived components.
Components in the IA and NB system that are included in this AMRR are the flex hose, piping, tanks, tubing, and valves that maintain the pressure boundary in the portion of the system which supports the function of safety-related components relied upon to remain functional during and following design basis events.
The alternate leakage treatment (ALT) pathway required to handle MSIV leakage for the alternate source term (AST) analysis contains several air-operated components which are supplied by the IA system. However, these valves fail to the position needed for the ALT pathway upon loss of air from the IA system. Therefore, the IA system components supplying these valves are not subject to aging management review. (Ref. 28)
Safety valves in the IA, N2, and SA systems prevent over-pressurization of compressed air and nitrogen receiver tanks. Several of these valves (SR-72-3A / B, SR-72-5, SR-16-19-77) were classified as Safety Class 3 at VY; however, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 4)
The backup supply cylinders for the inner and outer doors of the reactor building railroad airlock are frequently emptied of air due to normal airlock operation and system leakage, and are replaced per procedure. These cylinders are therefore not long-lived and are not subject to aging management review. The seals themselves are reviewed in AMRC-06, Aging Management Review of Bulk Commodities. (Ref. 22, 23)
The alternate rod insertion valves (SE-3-ARI-A / B) have an intended function to open exhaust ports to depressurize the scram valve pilot air header to initiate a scram to mitigate the consequences of an ATWS event. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 3)
The backup scram pilot valves (SN-3-140A / B) have an intended function to open exhaust ports to depressurize the scram valve pilot air header to initiate a scram. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 3)
The scram discharge volume vent and drain solenoid pilot valves (SE-3-31A / B) have an intended function to vent control air pressure from the scram discharge volume vent and drain valves to initiate a scram. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 3)
The scram pilot valves (SO-117/8-XX-XXX) have an intended function to vent control air pressure from the inlet and outlet scram valves to initiate a scram. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 3)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 9 of 26 Solenoid-operated air valves (FSO-2-39 and FSO-2-40) have an intended function to vent control air from the valve operators for the reactor recirculation system sample line isolation valves. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 10)
The containment air compressor isolation valve air supply valves (FSO-105-1A / B) have an intended function to vent control air from the valve operators for the containment air compressor containment isolation valves. However, they do not have a pressure boundary function for license renewal and thus are not subject to aging management review. (Ref. 10)
The flex hoses for the air cylinders in the backup air supply for the reactor building railroad airlock and the nitrogen cylinders in the backup N2 supply for the SRVs include a Teflon lining.
These will be replaced on a specified time period. Therefore, these components are not subject to aging management review.
Insulation is not installed on equipment in the IA system. (Ref. 13)
A list of the IA system passive mechanical components subject to aging management review is included as Attachment 1. Flow diagrams associated with this system, highlighted to identify components requiring aging management review, are available as drawings LRA-G-191160-SH-03, LRA-G-191160-SH-04, LRA-G-191160-SH-06, LRA-G-191160-SH-08 and LRA-G-191167. (Ref. 10)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 10 of 26 3.0 Aging Effects Requiring Management EPRI reports 1003056 and 1002950 are used in this section to identify and evaluate aging effects requiring management. Aging effects that may result in loss of intended functions for non-Class 1 mechanical components are cracking (i.e., crack initiation, crack growth, and through-wall cracking), change in material properties, loss of material, and fouling. For additional information on aging effects, refer to EPRI reports. (Ref. 1, 23) is a list of components that form the pressure boundary. These components require aging management review in this AMRR and are highlighted on the associated LRA drawings.
The IA compressors and air receivers are located in the turbine building where normal air temperature is between 55 and 105°F. Significant portions of the piping and components, including the containment air compressor and receiver, are located in the reactor building where normal air temperature is between 55 and 100°F. Some piping and components are inside primary containment, where normal air temperature is between 135 and 165°F. (Ref. 2)
The following sections document the determination of aging effects requiring management for specific component materials and environments. Since the primary containment is inerted with nitrogen during power operation, piping and components in the IA and NB systems inside primary containment are exposed internally and externally to nitrogen during power operation.
However, when the primary containment atmosphere is de-inerted, most of the components are exposed internally to treated air and externally to indoor air. Since moisture or other contaminants are more likely to be entrained in air than in nitrogen, carbon and stainless steel exposed internally to treated air and externally to indoor air are evaluated. An exception is the SRV nitrogen bottle station, where the contents of the two nitrogen cylinders (CYL-72-1A / B) are kept isolated from the drywell when it is opened for access. Thus, these cylinders have an internal nitrogen environment with an external environment of indoor air. (Ref. 15, 16) 3.1 Carbon Steel Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)
A portion of the piping components and valves are carbon steel (pipe code CS-1). See for a list of the carbon steel components. These components are exposed to treated air on internal surfaces and indoor air on external surfaces. (Ref. 10, 11, 12, 21)
Loss of material due to microbiologically influenced corrosion (MIC) and general, pitting and crevice corrosion is an aging effect requiring management for carbon steel components exposed to treated air on internal surfaces since entrainment of moisture or other contaminants is conservatively assumed. Localized galvanic corrosion is possible at interfaces between carbon steel and stainless steel components, due to potential accumulation of moisture in low points of the system which provides an electrolyte. Loss of material from erosion or flow-accelerated corrosion is not a concern since only gas is transported.
Cracking due to thermal fatigue is not an aging effect requiring management since the components subject to aging management review remain below the 220°F threshold for carbon steel thermal fatigue.
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 11 of 26 Loss of material from general corrosion is considered an aging effect requiring management for carbon steel external surfaces exposed to indoor air.
3.2 Carbon Steel Components (Exposed to Nitrogen on Internal Surfaces and Indoor Air on External Surfaces)
The SRV nitrogen supply cylinders are carbon steel. These components are exposed to high-quality nitrogen on internal surfaces and indoor air on external surfaces. (Ref. 17, 32)
Loss of material due to corrosion is not an aging effect requiring management for carbon steel components exposed to nitrogen on internal surfaces due to the purity of the inert nitrogen gas.
Localized galvanic corrosion is not possible at interfaces between carbon steel and stainless steel components due to the lack of an electrolyte. Loss of material from erosion or flow-accelerated corrosion is not a concern since only gas is transported.
Cracking due to thermal fatigue is not an aging effect requiring management since component temperature remains below the 220°F threshold for carbon steel thermal fatigue.
Loss of material from general corrosion is considered an aging effect requiring management for carbon steel external surfaces exposed to indoor air.
3.3 Stainless Steel Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)
The majority of the piping components and valves are stainless steel (piping line symbols IA-25 and IA-26). The SRV accumulators are also stainless steel. See Attachment 1 for a list of the stainless steel components. These components are exposed to treated air on internal surfaces and indoor air on external surfaces. (Ref. 11, 17, 18, 20, 21)
Stainless steel is inherently resistant to general corrosion and erosion. Moisture and contaminants are conservatively assumed to be entrained in the air resulting in pitting, crevice and possibly MIC on internal surfaces of the components at low points in the system where accumulation of moisture may occur. Therefore, loss of material is an aging effect requiring management for internal surfaces of stainless steel components.
Although components within the primary containment are subjected to an ambient temperature above the 140°F threshold for these mechanisms in stainless steel, this is only during power operation when these components are exposed internally and externally to an inert atmosphere of nitrogen. Therefore, cracking due to stress corrosion and intergranular attack is not an aging effect requiring management.
Cracking due to thermal fatigue is not an aging effect requiring management since system temperature remains below the 270°F threshold for stainless steel thermal fatigue.
There are no aging effects requiring management for external surfaces of stainless steel components exposed to indoor air due to the corrosion resistance of stainless steel in air.
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 12 of 26 3.4 Copper Alloy > 15% Zn Components (Exposed to Treated Air on Internal Surfaces and Indoor Air on External Surfaces)
Valves made of copper alloy (with unknown Zn content; therefore, >15% Zn is assumed) are used. These components are exposed to treated air on internal surfaces and indoor air on external surfaces. (Ref. 11, 19)
Moisture and contaminants are conservatively assumed to be entrained in the air resulting in pitting and crevice corrosion and possibly MIC on internal surfaces of the copper alloy components at low points of the system where moisture may accumulate. Erosion is not expected due to low flow velocities. Copper alloy > 15% Zn that is not inhibited may also experience selective leaching when exposed to this environment. Therefore, loss of material is an aging effect requiring management for internal surfaces of copper alloy components.
Cracking due to stress corrosion and intergranular attack is not an aging effect requiring management for copper alloy since an ammonia environment is not present.
Cracking due to thermal fatigue is not an aging effect requiring management since system temperature remains low.
No aging effects require management for external surfaces of copper alloy components exposed to indoor air due to the corrosion resistance of copper alloys in air.
3.5 Bolting Pressure retaining bolting in this system may be carbon steel or stainless steel and is exposed to indoor air. (Ref. 12)
Loss of material from general corrosion is considered an aging effect requiring management for carbon steel bolting exposed to indoor air. Loss of material is not an aging effect requiring management for stainless steel bolting that is not wetted.
3.6 Operating Experience The review of site specific operating experience and recent industry operating experience completed in VYNPS Report LRPD-05, Operating Experience Review Results, did not identify additional aging effects for the passive mechanical components reviewed in this AMRR. (Ref.
- 9)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 13 of 26 4.0 Demonstration That Aging Effects Will Be Managed The components of the IA system and components of the NB system with a direct IA system interface subject to aging management review were described in Section 2.0. For those components, Section 3.0 documented the determination of aging effects requiring management. The aging management review is completed by demonstrating that existing programs, when continued into the period of extended operation, can manage the aging effects identified in Section 3.0. No further action is required for license renewal when the evaluation of an existing program demonstrates that it is adequate to manage the aging effect such that corrective action may be taken prior to loss of the system intended functions. Alternately, if existing programs cannot be shown to manage the aging effects for the period of extended operation, then action will be proposed to augment existing or create new programs to manage the identified effects of aging.
Demonstration for the purposes of this license renewal technical evaluation is accomplished by establishing a clear relationship among the components under review, the aging effects on these items caused by the material-environment-stress combinations which, if undetected, could result in loss of the intended function such that the system could not perform its function(s) within the scope of license renewal in the period of extended operation, and the credited aging management programs whose actions serve to preserve the system intended function(s) for the period of extended operation. lists component types and identifies the aging effects requiring management for each material and environment combination. The Instrument Air Quality Program and System Walkdown Program in combination will manage the effects of aging, thereby precluding loss of the intended functions of the system. Sections 4.1 through 4.2 provide the clear relationship between the component, the aging effect, and the aging management program actions which preserve the intended functions for the period of extended operation. Section 4.3 identifies applicable time-limited aging analyses. For a comprehensive review of programs credited for license renewal of VYNPS and a demonstration of how these programs will manage aging effects, see VYNPS Report LRPD-02, Aging Management Program Evaluation Results. (Ref. 8) 4.1 Instrument Air Quality Program The Instrument Air Quality Program maintains the IA system free from contaminants and MIC, thereby managing loss of material for carbon steel, stainless steel, and copper alloy components in the IA and NB systems, the containment air portion of the IA system, the SRV backup nitrogen bottle station, and the SRV and MSIV accumulators.
This program applies to component types indicated on Attachment 2. For additional information on this program, see VYNPS Report LRPD-02, Aging Management Program Evaluation Results. (Ref. 8)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 14 of 26 4.2 System Walkdown Program Under the System Walkdown Program, visual inspections are conducted to manage aging effects on components. For the components reviewed in this AMRR, the System Walkdown Program manages loss of material for external carbon steel components by visual inspection of external surfaces.
This program applies to component types indicated on Attachment 2. For additional information on this program, see VYNPS Report LRPD-02, Aging Management Program Evaluation Results. (Ref. 8) 4.3 Time-Limited Aging Analyses This system is not exposed to elevated temperatures and the associated metal fatigue.
Therefore, metal fatigue analyses are not TLAA applicable to the components reviewed in this AMRR.
See VYNPS Reports LRPD-03, TLAA and Exemption Evaluation Results, and LRPD-04, TLAA
- Mechanical Fatigue, for further review of time-limited aging analyses. (Ref. 25, 26)
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 15 of 26 5.0 Summary and Conclusions The following aging management programs address the aging effects requiring management for the components reviewed in this AMRR.
Instrument Air Quality Program System Walkdown Program For additional review of programs credited for license renewal of VYNPS, see VYNPS Report LRPD-02, Aging Management Program Evaluation Results. contains the aging management review results for the components reviewed in this AMRR.
In conclusion, programs described in Section 4.0 will provide reasonable assurance that the effects of aging on the instrument air system and components of the NB system with a direct IA system interface will be managed such that the intended functions will be maintained consistent with the current licensing basis throughout the period of extended operation.
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 16 of 26 6.0 References
- 1. Non-Class 1 Mechanical Implementation Guideline and Mechanical Tools, Revision 3, EPRI, Palo Alto, CA: 2001. 1003056
- 2. VYNPS Updated Final Safety Analysis Report (UFSAR) Sections 5.2.3.7, 10.12.3, 10.14
- 3. Document CRD, VYNPS Design Basis Document for Control Rod Drive System, Rev. 1, 10/04/05
- 4. ENN-MS-S-009-VY, Vermont Yankee Site Specific Guidance and System Safety Function Sheets, Rev. 0, 3/22/05.
- 5. Document SADBD, Topical Design Basis Document for Safety Analysis, Rev. 4, 9/29/05
- 6. VYC-1507, VYNPS Appendix R Safe Shutdown Capability Analysis (SSCA), Rev. 7, 6/26/04
- 7. VY Environmental Qualification Program Manual, Volume 1, Section 6.0, Rev. 18
- 8. VYNPS Report LRPD-02, Aging Management Program Evaluation Results
- 9. VYNPS Report LRPD-05, Operating Experience Review Results
- 10. Flow Diagram G-191160 sh 1, Rev. 29, Instrument Air System Flow Diagram G-191160 sh 3, Rev. 29, Instrument Air System Flow Diagram G-191160 sh 4, Rev. 19, Instrument Air System Flow Diagram G-191160 sh 6, Rev. 10, Instrument Air System Flow Diagram G-191160 sh 8, Rev. 3, Instrument Air System Flow Diagram G-191167, Rev. 75, Nuclear Boiler System Flow Diagram G-191170, Rev. 48, Control Rod Drive Hydraulic System
- 11. Drawing B-191261, Instrument Installation Details, sheets 41A-1,2,3,4, 47B,D, 63, 150
- 12. BWR QC-10, Ebasco Piping Specification, 3/15/70
- 13. VYNP-III-I-1, Ebasco Insulation Specification, Rev. 2, 12/23/1969
- 14. OP 2190, Service and Instrument Air, Rev. 29, 11/04/2005
- 15. OP 2191, Containment Air System, Rev. 21, 4/04/2004 OP 2115, Primary Containment, Rev. 45, 10/31/05 EDCR 98-405, Drywell Nitrogen Supply Modifications WO 00-002031-001, SRV Backup Nitrogen Supply Cylinder Pressure Regulator EE 1752, ASCO Three-Way Solenoid Valve, Reactor Building Railroad Airlock VY Event Report 2003-0843, SR-72-9A,B, SR-72-10A,B
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 17 of 26 Mechanical Equipment Drawings 5920-7103, MSIV Air Accumulator 5920-7104, SRV Air Accumulator OP 2116, Secondary Containment Integrity Control, Rev. 19, 5/09/05
- 16. Industry Guideline for Implementing the Requirements of 10 CFR Part 54 - The License Renewal Rule, NEI 95-10, Revision 6, June 2005
- 17. Aging Effects for Structures and Structural Components (Structural Tools), Revision 1, EPRI, Palo Alto, CA: 2003. 1002950
- 20. Document MS, VYNPS Design Basis Document for Main Steam System, Rev. 3, 9/27/05
- 21. Technical Evaluation No. 2003-012, ALT Drain Paths and Seismic Isolation Boundaries for AST, Rev. 1, 11/17/03
- 23. VYNPS Report LRPD-01, System and Structure Scoping Results
- 24. Document N2 - CAD - PCAC, VYNPS Design Basis Document for Nitrogen Supply, Primary Containment, Atmospheric Control, and Containment Atmosphere Dilution Systems, Rev. 4, 10/17/05
- 25. Warehouse Issue Ticket No. 00-89507
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 18 of 26 - Components Subject to AMR ENVIRONMENT: AIR - INDOOR (EXTERNAL)
Comp ID Comp Type Comp Name Material IA-BOLTING bolting INSTRUMENT AIR SYSTEM BOLTING carbon steel IA-BOLTING bolting INSTRUMENT AIR SYSTEM BOLTING stainless steel ENVIRONMENT: NITROGEN (INTERNAL)
Comp ID Comp Type Comp Name Material CYL-72-1A tank NITROGEN BOTTLE FOR BACKUP SRV SUPPLY carbon steel CYL-72-1B tank NITROGEN BOTTLE FOR BACKUP SRV SUPPLY carbon steel ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material IA-PIPING piping INSTRUMENT AIR SYSTEM PIPING carbon steel IA-PIPING piping INSTRUMENT AIR SYSTEM PIPING stainless steel IA-PR-1 valve body REACTOR BLDG RAILROAD AIRLOCK BOTTLE REGULATOR - 1 carbon steel IA-PR-2 valve body REACTOR BLDG RAILROAD AIRLOCK BOTTLE REGULATOR - 2 carbon steel IA-TESTCONN-1 valve body TEST CONNECTION VALVE AT SRV BACKUP N2 SUPPLY stainless steel IA-TESTCONN-10 valve body TEST CONNECTION VALVE AT PI-105-30 carbon steel IA-TESTCONN-11 valve body TEST CONNECTION VALVE AT PI-105-31 carbon steel IA-TESTCONN-2 valve body TEST CONNECTION VALVE AT PI-105-35 carbon steel IA-TESTCONN-3 valve body TEST CONNECTION VALVE AT PI-105-34 carbon steel IA-TESTCONN-4 valve body TEST CONNECTION VALVE AT PS-105-34 carbon steel IA-TESTCONN-5 valve body TEST CONNECTION VALVE AT PS-105-35 carbon steel IA-TESTCONN-6 valve body TEST CONNECTION VALVE AT PI-105-33 carbon steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 19 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material IA-TESTCONN-7 valve body TEST CONNECTION VALVE AT PI-105-32 carbon steel IA-TESTCONN-8 valve body TEST CONNECTION VALVE AT PS-105-37 carbon steel IA-TESTCONN-9 valve body TEST CONNECTION VALVE AT PS-105-36 carbon steel IA-TESTISOL-1 valve body TEST ISOLATION VALVE AT SRV BACKUP N2 SUPPLY stainless steel IA-TUBING tubing INSTRUMENT AIR SYSTEM INSTRUMENT TUBING carbon steel IA-TUBING tubing INSTRUMENT AIR SYSTEM INSTRUMENT TUBING stainless steel NB-TUBING tubing NUCLEAR BOILER SYSTEM TUBING stainless steel PCV-105-10 valve body PRESS CONTROL VALVE carbon steel PCV-105-11 valve body PRESS CONTROL VALVE carbon steel PR-105-1A valve body SRV BACKUP N2 SUPPLY CYLINDER A REGULATOR stainless steel PR-105-1B valve body SRV BACKUP N2 SUPPLY CYLINDER B REGULATOR stainless steel S-2-13A tank NBS AIR ACCUMULATOR stainless steel S-2-13B tank NBS AIR ACCUMULATOR stainless steel S-2-13C tank NBS AIR ACCUMULATOR stainless steel S-2-13D tank NBS AIR ACCUMULATOR stainless steel S-2-5A tank NBS AIR ACCUMULATOR carbon steel S-2-5B tank NBS AIR ACCUMULATOR carbon steel S-2-5C tank NBS AIR ACCUMULATOR carbon steel S-2-5D tank NBS AIR ACCUMULATOR carbon steel S-2-6A tank NBS AIR ACCUMULATOR carbon steel S-2-6B tank NBS AIR ACCUMULATOR carbon steel S-2-6C tank NBS AIR ACCUMULATOR carbon steel S-2-6D tank NBS AIR ACCUMULATOR carbon steel SE-105-2A valve body SOLENOID VALVE copper alloy >15% zn
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 20 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material SE-105-2B valve body SOLENOID VALVE copper alloy >15% zn SE-2-71A valve body PILOT FOR SAFETY RELIEF VALVE stainless steel SE-2-71B valve body PILOT FOR SAFETY RELIEF VALVE stainless steel SE-2-71C valve body PILOT FOR SAFETY RELIEF VALVE stainless steel SE-2-71D valve body PILOT FOR SAFETY RELIEF VALVE stainless steel SE-2-80A-1 valve body MAIN STEAM INBOARD stainless steel SE-2-80A-2 valve body MAIN STEAM INBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-80A-3 valve body MAIN STEAM INBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-80B-1 valve body MAIN STEAM INBOARD stainless steel SE-2-80B-2 valve body MAIN STEAM INBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-80B-3 valve body MAIN STEAM INBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-80C-1 valve body MAIN STEAM INBOARD stainless steel SE-2-80C-2 valve body MAIN STEAM INBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-80C-3 valve body MAIN STEAM INBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-80D-1 valve body MAIN STEAM INBOARD stainless steel SE-2-80D-2 valve body MAIN STEAM INBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-80D-3 valve body MAIN STEAM INBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-86A-1 valve body MAIN STEAM OUTBOARD stainless steel SE-2-86A-2 valve body MAIN STEAM OUTBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-86A-3 valve body MAIN STEAM OUTBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-86B-1 valve body MAIN STEAM OUTBOARD stainless steel SE-2-86B-2 valve body MAIN STEAM OUTBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-86B-3 valve body MAIN STEAM OUTBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-86C-1 valve body MAIN STEAM OUTBOARD stainless steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 21 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material SE-2-86C-2 valve body MAIN STEAM OUTBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-86C-3 valve body MAIN STEAM OUTBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SE-2-86D-1 valve body MAIN STEAM OUTBOARD stainless steel SE-2-86D-2 valve body MAIN STEAM OUTBOARD ISOLATION VALVE DC PILOT SOLENOID stainless steel SE-2-86D-3 valve body MAIN STEAM OUTBOARD ISOLATION EXERCISE VALVE (TEST) SOLENOID stainless steel SR-72-1 valve body NITROGEN SUPPLY RELIEF VALVE stainless steel SR-72-10A valve body REACTOR BUILDING RAILROAD AIRLOCK NITROGEN SUPPLY RELIEF VALVE stainless steel SR-72-10B valve body REACTOR BUILDING RAILROAD AIRLOCK NITROGEN SUPPLY RELIEF VALVE stainless steel SR-72-9A valve body REACTOR BUILDING RAILROAD AIRLOCK NITROGEN SUPPLY RELIEF VALVE stainless steel SR-72-9B valve body REACTOR BUILDING RAILROAD AIRLOCK NITROGEN SUPPLY RELIEF VALVE stainless steel V2-37A valve body ACCUMULATOR CHECK VALVE stainless steel V2-37B valve body ACCUMULATOR CHECK VALVE stainless steel V2-37C valve body SRV ACCUMULATOR CHECK VALVE stainless steel V2-37D valve body SRV ACCUMULATOR CHECK VALVE stainless steel V2-82A valve body SPRING LOADED CHECK VALVE stainless steel V2-82B valve body SPRING LOADED CHECK VALVE stainless steel V2-82C valve body SPRING LOADED CHECK VALVE stainless steel V2-82D valve body SPRING LOADED CHECK VALVE stainless steel V2-87A valve body SPRING LOADED CHECK VALVE stainless steel V2-87B valve body SPRING LOADED CHECK VALVE stainless steel V2-87C valve body SPRING LOADED CHECK VALVE stainless steel V2-87D valve body SPRING LOADED CHECK VALVE stainless steel V72-102 valve body PRIMARY CONTAINMENT ISOLATION stainless steel V72-106 valve body CONTAINMENT PENETRATION BLOCK VALVE stainless steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 22 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material V72-109 valve body NORMAL SUPPLY TO ADS stainless steel V72-125 valve body SEISMIC SUPPLY TO ADS VALVES stainless steel V72-136 valve body TEST CONNECTION stainless steel V72-142 valve body INSTRUMENT ISOLATION stainless steel V72-143 valve body SRV BACKUP N2 SUPPLY CYLINDER A ISOLATION stainless steel V72-145 valve body SRV BACKUP N2 SUPPLY CYLINDER B ISOLATION stainless steel V72-150 valve body GATE VALVE carbon steel V72-151 valve body GLOBE VALVES carbon steel V72-152 valve body GATE VALVE stainless steel V72-152A valve body GATE VALVE stainless steel V72-152C valve body VALVE, DRAIN/TEST CONNECTION stainless steel V72-153A valve body INSTRUMENT AIR CHECK VALVE TEST VENT VALVES stainless steel V72-18 valve body CONTAINMENT PENETRATION BLOCK VALVE stainless steel V72-21 valve body CONTAINMENT PENETRATION TEST CONNECTION stainless steel V72-22 valve body CONTAINMENT PENETRATION TEST CONNECTION stainless steel V72-33 valve body PRIMARY CONTAINMENT ISOLATION stainless steel V72-35 valve body CONTAINMENT PENETRATION TEST CONNECTION stainless steel V72-38A valve body GATE VALVES carbon steel V72-38B valve body GATE VALVES carbon steel V72-491A valve body CONNECTION stainless steel V72-491B valve body CONNECTION stainless steel V72-491C valve body CONNECTION stainless steel V72-491D valve body CONNECTION stainless steel V72-493A valve body TEST CONNECTION stainless steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 23 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material V72-493B valve body TEST CONNECTION stainless steel V72-493C valve body TEST CONNECTION stainless steel V72-493D valve body TEST CONNECTION stainless steel V72-494A valve body CONNECTION stainless steel V72-494B valve body CONNECTION stainless steel V72-494C valve body CONNECTION stainless steel V72-494D valve body CONNECTION stainless steel V72-495A valve body CONNECTION stainless steel V72-495B valve body CONNECTION stainless steel V72-495C valve body CONNECTION stainless steel V72-495D valve body CONNECTION stainless steel V72-604 valve body RB RAILROAD AIRLOCK DOOR B ISOLATION carbon steel V72-605 valve body RB RAILROAD AIRLOCK DOOR A ISOLATION carbon steel V72-606 valve body RB RAILROAD AIRLOCK DOOR BACKUP AIR ISOLATION carbon steel V72-606A valve body RB RAILROAD AIRLOCK DOOR SEAL BACKUP AIR ISOLATION carbon steel V72-607 valve body RB RAILROAD AIRLOCK DOOR BACKUP AIR ISOLATION carbon steel V72-607A valve body RB RAILROAD AIRLOCK DOOR SEAL BACKUP AIR ISOLATION carbon steel V72-608 valve body RB RAILROAD AIRLOCK DOOR SEAL TEST CONNECTION ROOT ISOLATION TO PS-105-34 carbon steel V72-609 valve body RB RAILROAD AIRLOCK DOOR SEAL SUPPLY CHECK carbon steel V72-610 valve body RB RAILROAD AIRLOCK DOOR SEAL SUPPLY CHECK carbon steel V72-613 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PS-105-35 carbon steel V72-614 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-33 carbon steel V72-615 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-32 carbon steel V72-616 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PS-105-37 carbon steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 24 of 26 - Components Subject to AMR ENVIRONMENT: TREATED AIR (INTERNAL)
Comp ID Comp Type Comp Name Material V72-617 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PS-105-36 carbon steel V72-618 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-30 carbon steel V72-619 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-31 carbon steel V72-620 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-35 carbon steel V72-621 valve body RB RAILROAD AIRLOCK DOOR SEAL ROOT ISOLATION TO PI-105-34 carbon steel V72-81A valve body VALVES stainless steel V72-81B valve body VALVES stainless steel V72-81C valve body VALVES stainless steel V72-81D valve body VALVES stainless steel V72-89B valve body CHECK VALVE stainless steel V72-89C valve body CHECK VALVE stainless steel V72-90E valve body CONTAINMENT AIR BLOCK VALVE carbon steel
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 25 of 26 - Aging Management Review Results Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Programs Bolting Pressure boundary Carbon steel Air - indoor (ext)
Loss of material System walkdown Stainless steel Air - indoor (ext)
None None Piping Pressure boundary Carbon steel Air - indoor (ext)
Loss of material System walkdown Treated air (int)
Loss of material Instrument air quality Stainless steel Air - indoor (ext)
None None Treated air (int)
Loss of material Instrument air quality Tank Pressure boundary Carbon steel Air - indoor (ext)
Loss of material System walkdown Nitrogen (int)
None None Treated air (int)
Loss of material Instrument air quality Stainless steel Air - indoor (ext)
None None Treated air (int)
Loss of material Instrument air quality Tubing Pressure boundary Carbon steel Air - indoor (ext)
Loss of material System walkdown Treated air (int)
Loss of material Instrument air quality
VYNPS License Renewal Project Aging Management Review of the Instrument Air System AMRM-16 Revision 0 Page 26 of 26 - Aging Management Review Results Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Programs Tubing Pressure boundary Stainless steel Air - indoor (ext)
None None Treated air (int)
Loss of material Instrument air quality Valve body Pressure boundary Carbon steel Air - indoor (ext)
Loss of material System walkdown Treated air (int)
Loss of material Instrument air quality Copper alloy >15%
zn Air - indoor (ext)
None None Treated air (int)
Loss of material Instrument air quality Stainless steel Air - indoor (ext)
None None Treated air (int)
Loss of material Instrument air quality