ML24109A103
| ML24109A103 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 04/17/2024 |
| From: | Xcel Energy, Northern States Power Company, Minnesota |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24109A128 | List:
|
| References | |
| L-MT-24-002 | |
| Download: ML24109A103 (1) | |
Text
MONTICELLO
APPENDIX F
CONTAINMENT VESSEL DESIGN SUIIMARY DESIGN
TABLE OF;CONTENTS
PAGE
1.0 INTRODUCTION
F.1-1
2.0 CONTAINMENT SYSTEM CRITERIA AND DESIGN F.2-1 2.1 General F.21 2.2 Applicable Codes F.2-1 2.3 Materials F.2-1 2.4 Design F.21 2.4.1 Pressures and Temperatures F.2-1 2.4.2 Design Loads F.2-2 2.4.3 Load Combinations F.2-5 2.4.4 Stresses F.2-8 -1 00 2.4.5 Design Reconciliation F.2-8
C 3.0 LEAK AND OVERLOAD TESTS F.3-1
4.0 FIELD REPAIRS F.4-1 4.1 Introduction F.4-1 4.2 Suuimary F.41 4.3 Conclusions F.4-3
ATTAC}NENT A - LEAKAGE AND OVERLAND TEST PROCEDURES AND RESULTS
Vessel Geometry F.A-1 Introduction F.A2 Procedure General F.A-3 Preliminary Checks F.A-4 Overload Test F.A-5 Leakage Rate Test F.A-6 Measurement of Leakage by Inner Chamber Method F.A-7 Figure A - Overload Test F.A-8 Figure B - Leakage Rate Test F.A-9 Results of Inspection and Tests Preliminary Checks F.A-10 Overload Test and Soap Film Inspection F.A-10 Leak Rate Test F.A-11 Reference System Hold Test F.A.A Thermocouple Data for Shell Temperatures F.A.B
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APPENDIX F
CONTAINMENT VESSEL DESIGN
SUMMARY
DESIGN
TABLE OF CONTENTS (Continued)
Overload Test Chart F.A.0 Overload and Soap Film Tests F.A.D Leakage Rate Test Data F.A.E Initial Test Procedure F.A.F
ATTACHMENT B - CODE CERTIFICATION FORMS AND DRAWINGS
Coda Form N-i - Drywell and Suppression Chamber F.B-1 Code Form N Air Lock F.B-3 C.B. & I. Drawing 2 Drywell Shell Stretch F.B-5 C.B. & I. Drawing 2C-3, Penetration Schedule and Orientation for Suppression Chamber F.B-6
F-ii REV 4 12/85 MONTICELLO 0 CONTAINMENT VESSEL DESIGN
SUMMARY
REPORT
1.0 INTRODUCTION
This report has been prepared for the Atomic Energy Commission by the General Electric Company. Its purpose is to provide technical information on the design of the containment vessel. It describes design and leak test criteria and methods and contains code forms and leak test results.
Previously submitted material has generally not been duplicated and where possible, references to this material have been included.
The containment vessel consists of a drywell and pressure suppression chamber, with a vent system connecting them. Numerous previously submitted documents contain diagrams of the system. A reactor building encloses the containment vessel and acts as a secondary con-tainment when the containment vessel is in service. Both the containment vessel (primary containment) and the reactor building are described in Section 5
The drywell is a light-bulb shaped vessel with the spherioai portion at the bottom and with the top cylindrical portion closed by a removable, flanged head.
- The top head is of a type that can be easily opened. Details are such that all bolts are removable with the head and arranged so that they may be tightened using an impact wrench. A 24 inch diameter inspection opening is provided in the head. The top head closure and the inspection opening have been made leak tight by means of double compression seals with con-nections to permit leak testing by pressurizing the air space between the seals.
The suppression chamber is in the general form of a torus; however, in lieu of furnishing a double curved surface, the vessel is made up of 16 mitered cylindrical sections. Baffles, catwalks with steel grating floor and two manholes with ladders to the catwalks were provided.
Manholes are flanged and bolted with a double compression seal with connections to permit leak testing by pressurizing the air space between the seals. Catwalks are capable of supporting a live load of 50 psf.
The vent system interconnecting the drywell and suppression chamber consists of vents between the drywell and a common header located within the suppression chamber, and down-comer pipes from the header terminating below the normal water level in the suppression chamber.
There are 8 vents equally spaced and uniformly sloped between the drywell and suppression chamber. Joints, permanently accessible, are provided in each vent to allow for relative movement due to expansion and contraction and other differential movements which may occur between the containment vessels. The common header for the vents is also in the general form of a torus and is also made up 0116 mitered cylindrical sections.
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The downcomer pipes are arranged so that there are 4 in panels with vents and 8 in panels without vents. Each downcomer has an outside diameter of 24 inches and a wall thickness of 1/4". The downcorner pipes terminate 4.0 ft below the minimum water level in the suppression chamber.
The sizes and arrangements of the dryweil, suppression chamber and vent system are shown on tables and illustrations in: Section 5. The suppression chamber is centered in the basement of the Reactor Building with the vertical axes of the vessels coincident.
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2.0 CONTAINMENT SYSTEM CRITERIA AND DESIGN
2.1 GENERAL
The containment vessel is designed, fabricated and testeu.. meet applicable codes or standard requirements, in a manner that guarantees without failure the leak-tightness and structural integrity of the system during all modes of plant operation or during any design accident condition. Failure of a containment barrier is defined as any failure which increases leakage rates above permissible values.
2.2 APPLICABLE CODES - PRESSURE VESSELS
The design, fabrication, erection and testing of the vessels conformed to the requirements of the American Society of Mechanical Engineers Boiler afid Pressure Vessel Code, Section UI Class B, 1965 edition, and all applicable addenda and Code Case Interpretations, including Code Cases 1177 and 1330.
The completed vessels were inspected and marked by a recognized inspection agency certifying that the requirements of the applicable standards and codes had been fulfilled. The vessels were stamped with the ASME Boiler and Pressure Vessel Code stamp in a permanently visible location, in accordance with Paragraph N-1500.
Other - The design, fabrication, and erection of supports and bracing and like applications not within the scope of the ASME Code conformed to the requirements of the Specifications for the Design, Fabrication, and Erection of Structural Steel for Buildings, 1963 edition, of the American Institute of Steel Construction.
2.3 MATERIALS
Materials used are in accordance with applicable codes. Plate materials are A212-B FBX and A516-70 FBX to A300. Pipe materials are A333 Gr. 1 seamless, forgings are A350 LF 1, bolts are A320-L7, A194 Gr 4, and A193-B8. Miscellaneous materials are A36, A284-B, API-SLX-42, and A263 C.
2.4 DESIGN
2.4.1 Pressures and Temperatures
Dryweli & Vent System
Maximum Internal Pressure: 62 psig@281°F Maximum External Pressure: 2 psig@281 °F Design Internal Pressure: 56 psig@281 °F Design External Pressure: 2 psig@281 °F Operating Internal Pressure: Oto 1psig@1500F Operating External Pressure: Oto 1psig@1500F
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Suppression Chamber
Maximum Internal Pressure: 62 psig@281 °F Maximum External Pressure: 2 psig@281°F Design Internal Pressure: 56 psig @281°F Design External Pressure: 2 psig@281°F Operating Internal Pressure: 0 to 1 psig @50 to 100 ° F Operating External Pressure: 0 to 1 psig @50 to 100 0F
Lowest Service Metal Temperature 30°F
2.4.2 Design Loads - Normal Operating Condition
During nuclear reactor operation the vessels are subject to the specified Operating Pres-.
sures and Temperatures. The suppression chamber also is subject to the pressure associated with the storage of 75, 900 ft 3 of water distributed uniformly within the vessel.
Accident Condition
In addition to the specified Design Pressures and Temperatures, the drywell shell and closure head are designed and constructed to withstand jet forces of the following magnitudes in the locations indicated from any direction within the drywell:
Interior Area Subjected to Location Jet Force (Max) Jet Force
Spherical part of drywell 664,000 pounds 3.69 sq. ft.
Cylinder and sphere to cylinder transition 256,000 pounds 1.42 sq. ft.
Closure Head 32,600 pounds 0.181 sq. ft.
The spherical and cylindrical parts of the drywell are backed up by reinforced concrete with space for expansion between the outside of the drywell and the concrete.
The above listed jet forces consist of steam and/or water impinging on the vessel causing a maximum metal temperature of 300 0 F. The jet forces listed above do not occur simultaneously.
However, a jet force was considered to occur coincident with design internal pressure and a temperature of 150 °F. Where the drywell shell is backed up by concrete it was assumed that local yielding will take place but it was established that a rupture will not occur. Where the shell is not backed up by concrete, the....1iary stresses resulting from this combination of loads did not exceed 0. 90 times the yield point of the material at 300 0 F.
The suppression chamber was designed for the specified Design Pressures & Temperatures coincident with the loads associated with the storage of suppression pool water increased in volume to 83, 700 ft. 3 and a jet force on each downcomer pipe of 21 kips.
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Equipment Loads in Drywell
The vertical loads of the primary reactor vessel and reactor support concrete and equip-wlent within the drywell were supported directly through the concrete fill within the drywell to continuous concrete fill below the drywell.
The design of the dryweil in its final support condition included provision for the seismic shear and moments on the base of the reactor vessel support pedestal.
Gravity Loads Applied to the Drywell Vessel include:
The weight of the steel shell, jet deflectors, vents and other appurtenances.
Loads from equipment support structural members.
An allowance of 10 psf for the compressible material to he temporarily applied to the exterior of the vessel for use as concrete forms.
The live load on the equipment access opening: 20 tons.
The live load for the depth of water on the water seal at the top flange of the drywell with the drywell hemispherical head removed, or loads from refueling seals without head removed.
The weight of contained air during test.
A temporary load due to the pressure of wet concrete to be placed directly against the exterior compressible material attached to the exterior of the drywell and vents as shown on the drawings. It is intended that the concrete be placed at a rate of 18 inches in depth per hour. It is estimated that this rate of placement will result in a radial pressure on the vessel of 250 psI.
Consideration was given to the residual stresses due to the unrelieved deflection of the vessel under this load, applied in successive 3 foot high horizontal bands.
Gravity Loads Applied to the SLppression Chamber include:
The weight of the steel shell including baffles, catwalks, headers, downcomers and other shell appurtenances.
The suppression pool water stored in the vessel.
The temporary load of 200 psf on the horizontal projected areas of the vessel due to the weight of wet concrete and concrete forms to be supported from the vessel during the construction of the floor above. The ASME Code allowable stresses were increased by 33 per-cent for the combination of this temporary load with other concurrent loads.
The weight of contained air during test.
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Lateral Loads - Wind Load
The drywell vessel which was exposed above grade prior to construction of the Reactor Building was designed for wind loads on the projected area of the circular shape in accordance with the height zones below in combination with other loads applicable during this stage with stresses limited to 133% of the ASME Code allowable stresses.
Height above grade (ft.) Wind Load (psf)
0- 30 15 30 - 100 21 Over - 100 27
Earthquake Loads - Drywell
A lateral force equal to the seismic coefficients indicated in Figures F.2.1 and F.2.2 applied to the drywell permanent gravity loads and a vertical force equal to 4% of the permanent gravity loads were assumed as acting simultaneously with each other and were taken concurrently with the permanent gravity loads, accident pressure conditions and other lateral loads.
Suppression Chamber
A horizontal acceleration of 12%g was applied at the mass center of the suppression chamber and combined as stated above with a vertical acceleration of 4%g and the gravity loads, accident pressure, etc.
Suppression Chamber Baffles - Loads
Horizontal: 6 psi on full area of each member of baffle, to provide support against wave action
Vertical: Dead load of baffle members
End Connections
Designed as slip joints so baffles do not act as ties or struts for suppression chamber shell. End connections designed for up to 509 () overstress so baffle connections will fail before any damage can be done to suppression chamber shell.
Vent Thrust
The vent pipes and their connections to the drywell, the suppression chamber and the vent header were designed for the following loads:
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Normal and Refueling Operation - A force resulting from the differential horizontal and vertical movements between the drywell and suppression chamber due to changes in temperature.
For this condition it was assumed that the drywell temperature is 150 ° F and the suppression chamber temperature is 50 °F.
Initial and Final Test Conditions - A force equal to design pressure times the net area the connecting ring between the vent pipe and the expansion bellows plus a force equal to design pressure times the flow area of the vent pipe.
Accident Condition - Forces similar to those above except the temperature of the drywell was taken as 281 °F.
Header Loads - The weight of the containment cooling headers in the dryweli, the spray header in the suppression chamber and the header on the outside suppression chamber were included in the gravity loads to be considered in the design of the vessels. The header outside the suppression chamber was flooded for all loading conditions. The spray headers in both vessels were considered as being empty except during the "Refueling" and "Accident" loading conditions.
2.4.3 Load Combinations
The vessels were designed for the loading combinations listed below.
2.4.3.1 Drywell and Vent System
2.4.3.1.1 Initial test condition at ambient temperature at time of test
Dead load of vessel Test pressure The weight of contained air Lateral load due to wind or earthquake, whichever is more severe Vent thrusts Vertical earthquake load Header load
2.4.3. 1.2 Final test condition at ambient temperature at time of test
Dead load of vessel and appurtenances Gravity loads from equipment supports Gravity loads of compressible material Dead load on welding pads Design pressure - internal and/or external Loads due to earthquake in combination with internal pressure only Effect of unrelieved deflection under temporary concrete load Restraint due to compressible material
- Vent thrusts Weight of contained air Header load
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2.4. 3. 1.3 Normal operating condition at operating temperature range of 50 °F to 150°F
Dead load of vessel and appurtenances Gravity loads from equipment supports Gravity load of compressible material Loads due to earthquake In combination with 0 psig internal pressure only Vent thrusts Restraint due to compressible material Dead load on welding pads Effect of unrelieved deflection under temporary concrete load Operating pressure - internal or external Live load on personnel air lock and equipment access opening Loads from refueling seal Header load
2.4.3.1.4 Refueling condition with drywell hemispherical head removed at operating temperature range of 50 0F to 150° F
Dead load of vessel and appurtenances Gravity loads from equipment supports Gravity load of compressible material Dead and live loads on welding pads Water load on water seal at top flange of drywell n Effect of unrelieved deflection under temporary concrete Restraint due to compressible material Live load on personnel air lock Live load on equipment access opening
2.4.3. 1.5 Accident condition
Dead load of vessel and appurtenances Gravity loads from equipment supports Gravity load of compressible material Dead load on welding pads Loads due to earthquake in combination with internal pressure only Design pressure and temperature Effect of unrelieved deflection under temporary concrete load Restraint due to compressible material Vent thrusts Jet forces Header load
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2.4.3.2 Suppression Chamber
2.4.3.2.1 InItial and final test condition at ambient temperature at time of test
Dead load of vessel and appurtenances Suppression pool water Loads due to earthquake In combination with internal pressure only Design pressure - internal or external Vent thrusts Weight of contained air Header loads
2.4. 3.2.2 Temporary condition at ambient temperature during construction
Dead load of vessel and appurtenances Loads due to earthquake Temporary concrete construction loading Live load on catwalks and platforms Header load
2.4.3.2.3 Normal operating condition at 50 °F - 100°F
Dead load of vessel and appurtenances Suppression pool water Loads due to earthquake in.combination with 0 psig internal pressure only Header loads Operating pressure - internal or external Live load on catwalks and platforms Vent thrust
2.4.3.2.4 Accident Condition
Dead load of vessel and appurtenances Suppression pool water Loads due to earthquake in combination with internal pressure only Design pressure Vent thrusts Jet forces on downcomer pipes Header loads
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2.4.4 Stresses - Primary Stresses
The enclosure was so designed that primary membrane stresses resulting from the above listed combinations of loads did not exceed those permitted by the Code.
Primary and Secondary Stresses
Secondary membrane and bending stresses in the drywefl, suppression chamber and vent system resulting from distortions due to specified internal pressure, loads, and temperature were computed. In the calculation of these stresses all resistances to uniform increase in radius were considered. Combined primary and secondary stresses were within limits specified in the ASME Boiler & Pressure Vessel Code.
Earthquake Stresses
Stresses under seismic loading did not exceed the ASME Code or the AISC Code allowable stresses. Use of the 1/3 increase that is normally permitted when considering earthquake loads was not required.
2.4.5 Design Reconciliation
A design basis review of the drywell identified differences between the seismic acceleration curves shown 1 C C in Figures F.2.1 and F.2.2 and those specified in Appendix A, Section A.3 and as stated in USAR Section 5.2.5.3.1. An engineering review of these differences concluded that results reported in Section 2.4 of this appendix are still valid when the seismic accelerations identified in Appendix A are considered in the analysis.
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~ 0 1035
ELEVATION 1017 ft - 0 in. TOP OF DRYWELL
1015 1 P II Ii 1-995 ELEVATION 992 ft 1/2 in. SUPPORT
\\\\ ELEVATION 980 ft.10 in. WATER LEVEL 975 WHEN FULL
\\
FULL
955-EMPTY 10 w -J
- 1 /
935 / /
915 TOP OF EMBEDMENT 917 ft 6 in.
895 0 0.1 0.2 0.3 0.4
SEISMIC COEFFICENT (g)
FIGURE F.2.] DESIGN SEISMICCOEFFIC1ENT(TOP SUPPORTED)
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1035
TOP OF DRYWELL ELEVATION 1017 ft-a in.
1015 - -
995 - -
975 - -
CD
- 955_ uj
935 - -
TOP OF EMBEDMENT ELEVATION 917 ft-6 in.
'I 915 - -
895 0.3 0.4 0 0.1 0.2 SEISEMIC COEFFICIENT (g)
FIGURE F2.2. DESIG$ SEISMIC COEFFICIENT (TOP UNSUPPORTED)
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3.0 LEAK AND OVERLOAD TESTS
A complete report on the leak test and overload test is Included hereIn as Attachment "A".
This report was prepared by Chicago Bridge and Iron Company and contains the test procedure as well as the test results. AU leakage rates were well within the allowable limits.
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4.0 FIELD REPAIRS
4.1 INTRODUCTION
In January, 1968, a crack was discovered where a shop assembled nozzle penetration Insert plate was welded to the drywell shell of the containment vessel. Extensive Inspection, magnetic particle testing and metalurgical examinations were undertaken to determine the cause and extent of cracking. These tests revealed the cracking to be the surface type and most of the cracks were found to be in the insert plate heat affected zone on the chamfered edge. The cracks discovered were longitudinal and immediately adjacent to the weld, ranging in depth from approximately 1/32 to 3/16". No subsurface cracking was detected. The major portion of the cracking occurred on the inside surface and was not confined to a particular type or size of chamfered insert plate.
The fabricator of the containment vessel (C.B.&L) compiled a detailed report on the cracks, evaluation of the cracks, laboratory simulation of the cracks, analysis of the cause of cracking, and laboratory and field tests of the containment vessel and vessel material. Copies of this report are on file at Chicago Bridge and Iron's Oak Brook, IlUnois offices and at General Electric's San Jose, California office, as well as the applicant's office. Nineteen copies of this report were unofficially distributed to the Chief, Reactor Project Branch 1, DRL, of the USAEC in March, 1968. The cracks, evaluation of the cracks, the above report and weld repair procedures were the subject of an information meeting held with the AEC on March 20, 1968. Because of this extensive reporting, only a summary of the problem and repairs are included as part of this report.
4.2
SUMMARY
Surface cracking, ranging in depth frm 1/32" to 3/16" was initially detected on January 18, 1968, mostly confined to the inside of the chamfered insert plates. No subsurface cracks were found.
An extensive field and laboratory investigation revealed that this cracking occurred as a result of the presence of hydrogen, high residual stresses, discontinuities at the surface, and high hardness. Laboratory tests simulating actual field temperature conditions resulted in similar cracks. It was concluded that such cracking could be prevented by using higher preheat and post heat temperatures which would tend to alleviate all of the above conditions, except the surface discontinuities.
A magnetic particle examination was made of all field welds, both inside and outside, subsequent to discovery of this cracking and prior to pneumatic testing of the vessel.
Cracks were traced out using carbon arc gouging and all cracks were repaired using 200° to 300°F preheat and 200° to 300°F post heat for one hour. Repaired areas were radiographed and magnetic particle examined after at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> delay.
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All repaired and adjacent a.reas were again magnetic particle examined during the pneumatic test after the vessel had reached 5 psi pressure. No weld repairs were required.
AU repaired and adjacent areas were again magnetic particle examined alter the vessel had reached 26 psi pressure. Again no weld repairs were required.
C) Following the overload and leak rate test of the vessel, a magnetic particle examina-tion was made of all the field welds around all insert fittings, both inside and outside, and spot checks were made of main vessel joints. No weld repairs were required.
4.3 CONCLUSION
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The absence of cracking as evidenced by the extensive magnetic particle testing during and subsequent to the pneumatic testing of the vessel substantiates the adequacy of the procedures developed for examing welds and for making repairs.
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APPENDIX F
Attachment "A"
C. B.&L Report of Initial Overload Test
and
Leakage Rate Determmation
of the
Pressure Suppression Contamment
for the
Monticello Nuclear Generating Plant
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2:1 Ellipsoidal Top Head 26'-ll 1/2 Major arneter
iI*i
Cylinder
lo'-O Equip.
Door - 62'-0 I.D. Sphere 7//Pers0el Lock
fIiiI!iI(( '
116W
\\ -
- VIE
Toroidal Suppression Chamber 98 1-0 ?lajor Diameter 27 1-8 Minor Diameter
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INITIAL OVERLOAD & LEAK RATE TEST REPORT OF THE CONTAINMENT VESSEL MON"!CELLO NUCLEAR PROJECT MUN,ICELLO, MINNESOTA
INTRODUCTION The Monticello Nuclear Power Project of the Northern States Power Company incorporates a pressure suppression containment system with a drywell having interconnecting vent lines to a suppression chamber. The system is intended to provide a leak resistant enclosure for the nuclear reactor and any steam or gases that may be released. The vessel is of the shape and size as shown on Page F.A-1.
The drywell and suppression chamber were designed, erected and tested by Chicago Bridge & Iron Company under a contract with General Electric Company and in accordance with General Electric Company specifications. The containment was designed and constructed in accordance with the rules of Section III of the ASME Code as a class "B" vessel. The containment vessel, consisting of interconnected drywell and suppression chamber, was stamped after completion and testing with the ASME symbol for the design internal rressure and design temperature.
The drywell was constructed on a skirt, but the lower portion was embedded in concrete prior to the vessel test. However, a Halogen leak test was conducted on all embedded seams to insure their leak tightness prior to this embedding operation.
The suppression chamber was constructed on permanent steel columns with shear ties to resist all horizontal earthquake forces. All plate seams, excluding the embedded portion,
- were accessible for inspection inside and outside before and after the pressure test. All permanent connections were welded in place in the shell of each vessel.
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Since outside weather conditions were severely cold at the time of test, a temporary encasement was built around the vessel. This temporary encasement was made from patented scaffolding and sheets of polyethylene, and its interior was heated to obtain an environment suitable for testing the vessel.
GENERAL PROCEDURE The following test was made: The procedure for the overload test fulfilled the requirements of Section III of the ASME Code including Code Cases 1177-5 and 1330-1 and the latest addenda as of July 1966. The overload test was made with the suppression chamber partially filled with water to the accident condition level (83,700 cubic feet). Both the drywell and suppression chamber were simultaneously pressurized with air to 125% of the design pressure.
The leakage rate test is performed by comparing a pressure in the containment vessel to a pressure in an inner chamber which is an integral part of the reference system. The reference system was tested with a Halogen leak detector and an absolute pressure test was conducted for 39 hours4.513889e-4 days <br />0.0108 hours <br />6.448413e-5 weeks <br />1.48395e-5 months <br /> prior to the leakage rate test.
The drywell and suppression chamber were tested for leaks in accordance with General Electric Specification No. 21A5642.
A general description of the reference system type of leakage test is as follows: By locating the inner chamber inside the drywell and inside the suppression chamber approximately at the center of the individual air masses, the average temperature of each air mass can be proportionately represented. Previous tests have shown that the data of successive midnight to dawn periods can be compared due to relatively uniform temperature conditions during this period..
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The negligible difference in average air temperature between the inner chamber and the containment vessel eliminates the possibility of a pressure differential being caused by temperature. With the reference system tested, any relative decrease in containment vessel pressure must be considered as external leakage. A manometer is used as the pressure differential sensing device between the reference system and the vessel. Page F.A-4describes the relationship between the differential pressure measurements to the per cent leakage.
Interior measurements of dew point and air temperatures were made and included in the calculation of the leakage rate. The results of the test are shown in Appendix P.A.E.
. PRELIMINARY INSPECTION AND TESTING Before the overload and leakage rate test at Monticello, preliminary inspection and testing was performed in the shop and field. All shop welded manholes and nozzles were magnetic particle inspected after stress relief. The personnel lock was shop assembled and tested for structural adequacy. A leak test of the lock was performed in the shop on gasket seals, valves, shaft penetrations, nozzles and piping.
At the Monticello site, the reference system was tested by pressurizing with Freon and using a Halogen leak detector.
After installation, the dew cell elements and resistance bulbs were tested in position and found to be operating.
The reference system was purged of Freon and pressurized with nitrogen for the absolute pressure test. This test was started at 5:00 P.M. February 7, 1968, and concluded at 8:00 A.M., February 9, 1968.
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The data compiled during this time, showed the reference system to be leak tight within the accuracy of the instruments. However, at the start of the leak rate test and after the final soap film test, a leak was found to have been created at Valve B. This leak was corrected and retested prior to starting the leak rate test. A discussion was held with General Electric, and it was agreed that another hold test of the reference system was not necessary.
A 2 psig soap film leak test of the inner door and a 10 psig soap film test of the exterior door of the.
personnel lock was made. No detectable leaks were found in either case.
The air space between the dou.ble gasketed connection of the head flange, equipment hatch, stabilizer hatches and manholes was pressurized to approximately 100 psig and soap film tested. No detectable leaks were found.
OVERLOAD TEST After testing of the reference system, the containment vessel was closed for the overload test. The suppression chamber had been filled with water in accordance with Step B-6 of the test instructions and at 12:00 noon on February 9, 1968, pressurizing operations were begun.
The vessel was pumped to 5 psig and a complete soap film test of the vessel was made.
Pressurizing operations were resumed and at 10:47 A.M.
February 10, 1968, overload pressure (70 psig) was reached. After one hour the pressure in the vessel was reduced to design pressure (56 psig) and the soap film test was started.
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LEAKAGE RATE TEST The leakage rate test of the vessel in the wet condition began at Midnight, February 10, 19!. and terminated at 7:00 A.M., February 13, 1968. Internal fans were used in the dry'el1 and suppression chamber for the circulation of air in order to obtain uniform conditions. External heaters were turned on intermittently to maintain a reasonable outside temperature.
To obtain a dew point temperature (and a water vapor pressure) three dew cells were located in the suppression chamber and three in the drywell. Ten resistance bulbs were used for temperatures, three in the suppression chamber, one in the water, one in the vent line, and five in the drywell. These locations are illustrated in Figure B.
At 7:00 A.M., February 13, 1968, the leak rate test was concluded and the vessel pressure was reduced to atmospheric.
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BY THE INNER CHAMBER METHOD ATENT OF LZAICACZ
V-Geometric Volta of Contairent Vessel P Absolute Presse of Co'ritairent Vessel P E.A. total Expanded Air Content V x
Loss Initial Expanded Air - Fthal Expanded Air V X 147 Itit. P - V x I nitial P - Final P Per Cant Loss (as a positive mt. P Initial P Value) X 14.7 Containment Vessel A basic preliminary step is the instalIaion and thorough check of an Inner Chamber with cotinecting tubing and instruments to assure that the assembly will be an absolutely tight reference system. Iririet
The Inner Chamber Method eliminates tempera-ture measurements from the calculations. At periods of relatively uniform temperature Chamber, usually midnight to dawn, the tempera-throughout the Containment Vessel and the Inner ture will cause negligible differential pressure reading on the Manometer. During the uniform AT temperature periods, however, a leakage of air by a decrease in Vessel pressure as compared with from the Vessel will be measured on the Manometer the leaktight Inner Chamber. This decrease in Li uniform temperature is Final P - Initial P. pressure between the Initial and Final periods of
Hence, Per Cent Loss * = FinalP - InitialP hit. P x 100 = a positive
If AP and P are rneasured in inches of water and pounds iner square inch respectively, and the leakage is to be calculated as a negative "ialue, Then, Per Cent Loss * = X 100 Initial P - FinalP mt. P x 13.6
- These equations applicable only when the temperature in the Containment Vessel and Inner Chamber are approximately equal and the Initial & Final temperatures are 4pproximately equal.
F A-7 REV 4 12/85 MONTICELLO
. CHICAGO BRIDGE & IRON COMPANY GREENVILLE ENGiNEERING DEPT. -
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RESULTS OF INSPECTIONS AND TESTS
PRELIMINARt 7.CKS The field magnetic particle inspection of manholes and nozzles did not find any indication of cracks or defects.
The leak tests of the locks in the field at 2 psig and 10 psig were satisfactory and no leaks were found. No leaks were found in pressurizing between the two gaskets of bolted covers.
The pressure-temperature data for the holding test of the reference system is tabulated in Appendix F.A.A. The results seem somewhat erratic because the internal heaters were operated intermittently during this test. However, to insure tightness a second Halogen leak test was performed on the reference system just prior to overload test. This test proved satisfactory.
OVERLOAD TEST AND SOAP FILM INSPECTION The overload test chart is reproduced in Appendix F.A.C. The hourly pressure-ambient temperature data recorded during the pump-up of the containment is tabulated in Appendix F.A.D.
During the overload test one temporary plug blew out of a 1" coupling on a 10" instrument line. The plug was replaced and the test resumed without incident.
The soap film test of the containment at the design pressure found several minor leaks. Several leaks were found on the temporary caps on the control rod drive penetrations. The plugs were tightened and the leaks minimized. Small leaks were found at the connection of power leads passing through the drywell. The only correction was to cut the leads and the decision was made to leave them alone and start the S leak rate. Leaks were detected in four lock penetrations
F. A-10 REV 4 12/85 MONTICELLO
and these were plugged with temporary caps welded on the inside of the drywell. These plugs leaked somewhat but not sufficiently to stop the test. Also several leaks were found in the stuffing box connections on the lock door operating mechanism. These were of minor nature and were repaired after the test.
LEAK RATE TEST The hourly data recorded during the February 11-13, 1968, wet leakage rate test is tabulated in Appendix F;A.E. The readings began at Midnight, February 10 and there was indication of large leaks. By 8:00 A.M. February 11, the test was halted in order to determine the location of leaks.
The leaks were found to be at a 1" diameter coupling and also the power leads for heaters inside the drywell. The power leads were cut and the opening was capped by Bechtel and the 1" diameter plug was changed. At Midnight,February 40 11, test data gain began to be collected for the leakage rate test. Readings taken at 8:00 A.M. the following morning indicated no large leakage.
The circulating fans operated continuously during the test which helped provide a uniformity in the air vapor space. The data during the periods of 2:00 A.M. to 7:00 A.M.
on February 12, and 13 proved to be the most stable, and this data is sununarized below. The atmospheric temperatures are in °F, the containment vessel pressures are in lbs./sq. inch absolute, and the differential manometer readings are in inches of water.
F.A-11 REV 4 12/85 MONTICELLO
FEB. 12, 1968 FEB. 13, 1968 mt. Air Chant. Diff. Iht. Air Chant. Diff.
Temp. °F. Press. Mano. Temp. Press. Mano.
Hours PSIA In. H10 °F. PSIA In. HQ_
2:00 A.M. 59.0 68.3 7.25 58.5 68.3 7.50 3:00 58.5 68.1 7.20 58.5 68.3 7.54 4:00 58.5 68.0 7.19 58.5 68.3 7.58 5:00 58.5 68.0 7.20 58.5 68.3 7.60 6:00 58.0 68.0 7.20 58.5 68.2 7.61 7:00 58.0 68.0 7.20 58.5 68.2 7.63
WEIGHTED AVERAGE 58.4 68.1 7.21 58.5 68.3 7.57
The change in water vapor pressure in the air-vapor space can be calculated from the temperature in dew point measurements. The internal air temperatures, the water temperatures, and the dew point temperatures all in OF are summarized below for the 2:00 A.M. to 7:00 A.M. time period.
F. A-12 REV 4 12/85 MONTICELLO
DRYWELL SUPPRESSION CHAMBER* VENT LINE**
mt. Air Dew mt. Air Water Point °F. Dew Temp. mt. Air °F.
Hours Temp. °F. Point °F. Temp. °F. Temp. °F.
FEB. 12, 1968 2:00 A.M. 58.0 46.7 60.0 54.0 56.9 60.0 3:00 57.6 46.2 60.0 54.0 56.2 59.0 4:00 57.6 46.7 60.0 54.0 56.0 59.0 5:00 57.6 47.2 60.0 54.0 56.0 59.0 6:00 57.2 46.9 59.6 54.0 56.0 59.0 7:00 56.8 46.4 59.6 54.0 56.0 58.0 AVERAGE 57.5 46.7 59.9 54.0 56.2 59.0
FEB. 13, 1968 2:00 A.M. 57.6 49.1 60.0 55.0 57.4 59.0 3:00 57.4 49.1 60.0 55.0 56.5 59.0 4:00 57.6 49.1 60.3 55.0 57.2 59.0 5:00 57.5 49.3 60.3 55.0 56.7 59.0 6:00 57.6 49.1 60.0 55.0 56.9 59.0 7:00 57.6 48.6 60.0 55.0 57.2 59.0 AVERAGE 57.6 49.1 60.1 55.0 57.0 59.0
- Header assumed to have same temperature and dew point as suppression chamber
- Vent line assumed to have same dew point as drywell
F.A-13 REV 4 - 12/85 - - --
MONTICELLO O
From the above average internal air temperature and dew point temperature, the relative per cent humidity for February 12, calculates to be 68.03% and 87.1%, respectively for the drywell and suppression chamber, and 73.75% and 89.7% for February 13.
Considering that the drywell and vent lines have 68% of the total volume of the containment 'vessel, the average water vapor pressures are.179 psi for February 12, and.191 psi for February 13.
Correcting the above temperatures to weighted average temperatures and using the above data (without vapor pressure corrections) of the two successive 2:00 A.M. to 7:00 A.N.
periods, the preliminary per cent leakage (as a negative
- number) per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period is as follows:
Per Cent Loss = Int.pre0x 277)x [mt. P - (Final P) x
= 100 518.4 68.u27.7t721 - 518.5
= -. 0190%/24 hrs.
Considering only the change in water vapor pressure, the apparent per cent loss (as a negative number) is as follows:
Per Cent Loss = ( mt. 100 27.7 X [Final W.V. x C Fin. I.A.T. mt. I.A.T. - ) nt. W.V.]
= 681][.l9l(5185) 518.4.179]
=.0176%/24 hrs.
F. A-14 REV 4 12/85 MONTICELLO
Combining the above calculated values the corrected per cent loss (as a negative number) is as follows:
Corrected per cent loss = preliminary per cent loss minus the apparent per cent loss
= -.0190 -.0176 = -. 0366%/24 hrs.
100 7.21 7.57 518.4
= 68.1 27.7 +.179 - 27.7 +.191) 518,5
= -. 0366%/24 hrs.
The corrected per cent loss of the wet test was well within the acceptable leakage rate of.2 of 1% for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The calculated leakage from the test data was acceptable to General Electric Company and Chicago Bridge & Iron Company.
CHICAGO BRIDGE & IRON COMPANY
F.A-15 REV 4 12/85 -
MONTICELLO
APPENDIX F.A.A
F.A.A-i REV 4 12/85 MONTICELLO S
REFERENCE SYSTEM HOLD TES"
Temperature Barometric REFERENCE SYSTEM PRESSURE Deg. Deg. of Ref. Sys. Pressure Measured Absolute Corrected Fahr.. Abs. In.
Feb. 7 O* °R. Mercury PSIA PSIG PSIA PSIA 5:00 P.M. 69 529 29.43 14.4 73.0 87.4 --
6:00 73 533 29.44 14.4 74.3 88.7 --
7:00 74 534 29.45 14.4 75.0 89.4 --
8:00 69 529 29.44 14.4 74.0 88.4 --
9:00 68 528 29.43 14.4 73.8 88.2 --
Feb. 8 9:30 A.M. 79 539 29.29 14.4 75.6 90.0 --
11:30 80 540 29.32 14.4 75.9 90.3 --
1:15 P.M. 81 541 29.25 14.3 76.0 90.3 --
. 2:30 81 541 29.20 14.3 75.8 90.1 --
3:30 80 540 29.19 14.3 75.8 90.1 --
4:30 79 539 29.18 14.3 75.6 89.9 --
5:30 78 538 29.19 14.3 75.3 89.6 88.7 7:15 74 534 29.20 14.3 74.4 88.7 --
8:00 72 532 29.20 14.3 74.0 88.3 --
9:00 70 530 29.20 14.3 73.7 88.0 --
10:00 69 529 29.24 14.3 73.6 87.9 --
Feb, 9 7:00 A.M. 66 526 29.30 14.4 72.9 87.3 --
8:00 66 526 29.30 14.4 72.8 87.2 --
Initial Data Selected At 6:00 P.M. Feb. 7.
Final Data Selected At 5:30 P.M. Feb. 8
Correct Pressure = (Final Abs. Press.)
S
F.A.A-i REV 4 12/85 MONTICELLO S
APPENDIX F.A.B S
S
F.A.B-i REV 4 12/85 MONTICELLO
THERMOCOUPLE DATA FOR SHELL TEMPERATURES Gage 1 Gage 2 Gage 3 Gage 4 Gage OF. 5 Gage 6 Gage 7 Date OF. °F. °F. *p. op op Gage 8 op.
FEB.9 Noon 79 97 86 100 74 70 70 48 1:00 P.M. 82 88 78 94 75 76 76 49 2:00 80 94 98 94 78 80 78 53 5:00 75 81 95 78 78 78 80 55 6:00 52 61 70 49 60 60 66 40 6:15 48 57 66 48 56 58 64 38 6:30 48 54 64 44 55 58 64 38 7:05 48 54 63 44 56 63 67 44 7:32 41 43 48 36 48 48 54 30
- 8:20 38 43 50 40 49 52 59 33 8:40 42 45 52 42 55 57 60 34 i:00 44 47 52 44 57 57 64 37 9:30 45 48 52 45 57 59 65 37 10:00 48 49 55 51 61 61 64 39 10:30 54 56 61 60 64 66 70 44
FEB. 10 12:30 A.M. 58 58 64 61 69 69 73 48 1:00 56 56 61 61 69 69 73 48 1:30 55 58 62 54 69 69 75 45 2:00 52 55 60 55 70 70 73 45 3:00 58 58 62 60 70 71 75 48 3:30 55 58 63 60 71 71 73 48 4:00 50 53 60 55 65 65 70 45
[]
F.A.B-1 REV 4 12/85 MONTICELLO
Gage 1 Gage 2 Gage 3 Gage 4 Gage 5 Gage 6 Gage 7 Gage 8 Date °F. 0F °F. OF. °F. °F. °F. °F.
FEB. 10 4:30 A.M. 58 58 62 60 67 fl 1 7 48 5:00 58 58 62 60 69 70 75 49 5:30 55 57 60 59 69 70 71 48 6 : 0 0 54 56 61 58 67 12 14 4 6:30 55 56 61 57 67 72 74 48 7:45 53 58 58 53 65 69 75 48 8:00 52 57 58 55 67 70 75 48 8:30 53 58 59 61 64 65 72 48 9:00 54 62 62. 65 65 68 70 48 9:30 54 64 65 73 68 68 71 48 10:00 60 71 71 74 67 69 71 48 10:30 61 73 73 76 66 69 74 48 10:47 62 73 74 81 71 71 76 48 11:30 68 81 84 90 69 69 73 48 NOON 73 89 87 94 69 70 75 48 5:30 P.M. 62 69 79 64
- 67 79 48 6:00 59 66 73 61 - 71 78 48 6:30 59 65 73 59 - 69 79 48 7:50 55 63 63 53 - 71 79 48 8:37 5f 56 62 52 - 67 80 48 10:30 51 51 57 50 - 67 79 48 11:53 46 50 50 45 - 65 79 48 FEB. 11 12:30 A.M. 56 58 59 56 - 74 82 55 1:57 53 56 59 54 - 77 85 54
- Gage 5 was broken during the 56 PSIG soap film c.
F.A.B-2 REV 4 12/85 MONTICELLO S
Gage 1 Gage 2 Gage 3 Gage 4 Gage 5 Gage 6 Gage 7 Gage 8 Date °F. 0F. OF. °F. °F OF FEB. 11 3:15 A.M. 54 54 63 52 - 75 84 54 4:15 54 54 56 52 - 75 85 56 5:00 53 53 55 52 - 73 86 56 6:20 46 46 49 47 - 70 76 50 7:05 46 46 46 44 - 66 76 49 8:00 46 47 49 48 - 67 79 49 9:00 49 58 58 64 - 66 79 47 10:00 53 66 62 64 - 66 77 48 11:00 53 63 66 67 - 64 77 47 NOON 61 72 72 75 61 64 82 48 1:00 P.M. 67 72 79 74 60 64 79 47 5 2:00 68 75 86 76 60 66 81 47 3:00 68 73 85 75 60 65 81 48 4:15 67 76 86 76 63 79 84 49 5:00 66 70 80 69 62 62 79 49 6:00 64 65 74 60 61 65 76 49 7:00 55 62 67 55 61 65 80 48 8:00 55 58 62 53 62 65 79 49 9:00 52 55 61 54 - 69 81 48 10:00 53 56 58 51 - 64 81 48 11:00 52 53 55 52 63 66 81 47 MIDNIGHT 48 53 54 51 62 64 82 49 FEB. 12 1:00 A.M. 49 51 53 48 60 65 79 46 2:00 48 49 53 51 62 65 79 49 3:15 58 58 61 57 68 73 85 56
a.
F. A. B-3 REV 4 12/85 MONTICELLO
Gage 1 Gage 2 Gage 3 Gage 4 Gage 5 Gage 6 Gage 7 Gage 8 Date °F. °F. °F. °F. °F. °F. °F. °F.
FEB. 12 4:00 A.M. 58 58 61 57 67 71 88 56 5:35 54 54 54 54 64 72 83 52 6:10 54 54 54 54 63 71 83 52 7:10 54 54 54 54 62 () 83 52 8:00 53 53 53 54 62 68 81 48 9:00 53 58 58 60 60 70 78 50 10:00 55 59 60 60 60 70 77 48 11:00 55 62 66 69 60 69 77 48 NOON 60 70 70 70 61 66 77 49 1:00 P.M. 61 66 70 70 61 70 83 49 2:00 64 65 70 66 64 71 84 50 3:00 63 69 75 71 66 71 79 50 4:00 65 71 75 71 66 75 84 51 5:00 64 67 74 67 66 68 83 50 6:00 56 60 67 55 64 69 81 49 7:00 56 60 63 54 64 70 83 52 8:00 5 59 60 56 64 70 80 50 9:00 56 57 58 54 66 72 83 52 10:00 54 56 57 49 64 67 81 52 11:00 54 54 56 51 64 69 79 52 MIDNIGHT 52 52 54 51 63 69 79 52 FEB. 13 1:00 A.M. 55 55 55 55 63 70 84 53 2:00 55 55 56 55 64 71 83 55 3:00 55 55 57 57 65 71 83 54 4:00 53 53 53 53 61 66 80 50
F.A.B-4 REV 4 12/85 MONTICELLO 0
Gage 1 Gage 2 Gage 3 Gage 4 Gage 5 Gage 6 Gage 7 Gage 8 °F. °F. °F. °F.
Date °F. °F. OF. °F
FEB. 13 80 49 5:00 53 53 53 53 61 67 6:00 56 56 56 56 63 70 84 50 7:00 56 56 56 56 64 70 86 50
is
F.A.B-5 REV 4 12/85 S MONTICELLO
APPENDIX F.A.0 El
F.A.C-i REV 4 12/85 MONTICELLO
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REV 4 12/85 MONTICELLO
APPENDIX F.A.D
F.A.D-i REV 4 12/85 MONTICELLO
CHICAGO BRIDGE & IRON COMPANY E CONTAINMENT VESSEL
OVERLOAD & SOAP FILM TESTS
Outside Air Vessel Pressure Time Temp. OF (',.gc 1 (age 2 Rec. Perarks
Feb. 9 1968
12:00 PM 0 CcI, clear, :rn 1:15 5 M.P. - Soap tested 5:30 0 2.5 5 o1d & Clear 6:00 4 6 6 6:15 6 10 6.5 6:30 -2 10 12 10 Colder 6:38 10.5 12 12 ;t.-rped pupinq oi.g i.r:.
tent to block up le3k in tent and to turn on outside heaters.
7:04 10.5 12 12 Opened valves purping 7:30 13 14 12.5 in tank 7:47 14 15 13 Shut comp. down to tank turned on inside heaters.
8:18 14 15 13 Tied compression into 9:00 19 19.5 19.5 chamber.
Shut pumping down 2 mir..
9:30 21 22 22 10:15 24 25 25 Recorder froze-worked on i 10:30 26 27 26 and got it unstuck.
10:33 26 27 26 Blowing off 10:37 25 26 26 Closed Valve M.P. fitting and some we seams
r
F.A.D-1 REV 4 12/85 MONTICELLO
CHICAGO BRIDGE & IRON COMPANY
CONTAINMENT VESSEL OVERLOAD & SOAP FILM TESTS
Outside Air Vessel Pressure Time Temp. °F Gage 1 Gacie 2 Rec.
Feb. 1968 10
1:00 AM -2 25 26 26 Pumping on chamber - 1 heatex 1:30 27 2 28 on in vessel - 4 outside 2:00 30 26 31 4 in supp, chariber area 2:15 32 33 Stop puniping for eloc, 3:00 -9 Resume pumpin 3:30 35 36 36 4:00 38 39 39 4:30 40 39 40 4:50 42 40 42 2 mm. hold 5:30 45 40 46 Recorder was frozen.
6:00 -11 48 49 49 5 min hold. S 6:30 51 51 51 7:00 51 1" plug Blew - Shut Down 7:30 51 Resume Pumpthg 8:00 54 54 54 8:30 57 57 57 5 mm. hold - Shut down for last look at boiler.
9:00 58 58 59 9:30 61 61 62 Shut Down 1 heater inside.
9:40 63 63 63 Sh)rt hold for 63* increment 10:00 64 65 65 Shut Down 2nd inside heater-All off.
10:30 67 68 68
S
F.A.D-2 REV 4 12/85 MONTICELLO
CHICAGO BrnDGE & IRON COMPANY
CONTAINMENT VESSEL OVERLOAD & SOAP FILM TESTS
Outside Air Vessel Pressure Time Temp. OF Gage 1 Gage 2 Rec. Remarks Feb. 10 1968 10:47 AN 70 70 70 Overlaod test pressure.
11:07 70 70 70 Transfer pressure on lock.
11:47 70 70 70 Start pressure reduction.
12:17 56 56 56 Down to W.P.
F.A.D-3 REV 4 12/85 MONTICELLO
APPENDIX FAsE
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- - (N -C". U'. '.0. N CO ON C.-4 C. - ('I '-4 (N - - Ui '.0 N.-4 1-4 MONTICELLO
APPENDIX rA.F
S
F.A.F-i REV 4 12/85 MONTICELLO
('i ic,c;c Ifluin.I: &'. IuclN C()1I'dNY
INITIAL TEST PROCEDURE
PRESSURE SUPPRESSION CONTAINMENT
CONTRACT 9-5625
MONTICELLO, MINNESOTA
PARII A,,- PRELIMINARY
A-i SHOE - ALL At rAI;HMF..NT WI:LDS FOR NOZZLES INS IALLLD IN INSLRT PLATr' AND SRI LI.
I'LATI IILI I.. AND AT TALHMCNT WELUS FOR RCINFOR(.F.M(NT PLATr WILL BE INrce: -re 0 (in ccr)rcian(7c' with Para. 1315a & b of 1\\SME Scctin TIT) as note'l ou L11C titn ittion drawin't.s. The inspection will be rnde subsequent to "st sa,slr 'a' "re'.trent nf the colte a-se lies.
A-2 SI-OP - P,..r.oNM A PNEUMATIC STRUCTURAL TEST OF PER.-INNI.L Lc,cK AT 1'NF OVFR-
LOAD PRESSuRF: OF 70 P510 AND A HALIDE TIGHTNESS TEST AT 56 c'sic. DESIGN PRESSURE.
T.si ING TO Be. PFIIFORMEO IN ACCORDANCE WITH THE SHot' TET,NG INSTRUCTIONS.
t'OTE - INSTALL TEMPORARY HOLDING DEVICES ON INN FR Doop OF LOC.K
BIFORE INCREASING TNt PRC5SURE ABOVE 2 pic.
A-3 MBLE,-,.ie. IN STRIJMENTS ON A PANEL BOARD FOR r,1 e. LEAK RATT T.
. (PART C) AND CONDUCT A TIGHTNESS TEST BY PRES.tJRI ZINC. WI IN AN AIRFREON MIX TIJPF.
TO 70 P510 AND TE,TINC. THE ASSEMBLY WITH A HALOGEN LEAK DFTFr.TOR.
A-4 Pt,e,,: r6t IRLON FROM THE PANEL BOARD A5-:MsL, IO'ING DRY NITRQc.LN GA.
P RC)ViI)I A PROOI I I &.T OF THE TIGHTNESS OF THE PANIL BOAFI, A EMRL.V BY FR Ii I 1MG TI) 70 Pio AND HOLD THE PRESSURE FOR A MINIMUM OF 24 HOt,S. ANY UI SCI R6 IflJ or barometric chanqe
C)R,T' IN r'RIsIIpI IN *IHE 24 HOUR PERIOD, NOT RE.LATFD TO TrMPFRATURF,ASNDULD St
CON-IDI-.REO UNArISFACTORY TIGHTNESS AND THE AS'-EMBL' MUST SE RETESTED WITH THI
HALOGEN LFAK DE-t-EcToR.
A-5 FIELU MAGNAFLUX ALL MANHOLES AND NOZZLES ABOVE 40" IN DIAMETER, INSIDE ANO OUTIDI.
A-6 IF ANY CRACKS OR ti AK ARE FOUND (A) U?iEi HIPPING TOOL OR ARCAIR GOUGE TO REMOVE DEFECT.
() MAGNAFLUX AND INSPECT OEFECTIVE AREA THOROUGHLY BCFORF R1WELDING.
() REPAIR BY WELDING.
() INSPECT THE REPAIRED AREA BY MAGNAFLUXING, OR BY RAIOe,pAPMv WHERE
AREA IS ACCESSIBLE.
A-7 CHECK GASKFI S ON TOP HEAO OF DRYWELL, EQUIPMENT HATCH. MANHOLE' ON Dtivw. LL A.CI S UPRRES-ION CHAMRF.R, - -I ARLIZER INSPECTION MANHOLES. AND 1 1/2" NOZ/LE MOWR ON
DRAWING 53, BY APPLYING AIR PRESSURE BETWEEN GASKF.TtA AND (,'ING A SOAP FILM.
De.CEMBER 11, 1967 F. A. F-i REV 4 12/85 MONTICELLO
('I II(\\(;. 1)llI '4 ;i.; &. II;ON (OMIAN1Y
INiTIAL TEST PROCEDURE CONTRACT 9-5625
A-8 Fl ILLJ P:,)RI it. PI.R-,ONN1L Locc WITH AIR TO 2 P510 AND CHECK THE TIGHTNESS
OF Till. INNt.R DOUR WITH A SOAP FILM. RELEASE THE PRESSURK TO 0 PSIG.
NOTE - IN-.TALL TIMPORARY HOLDING OEVICLS ON INNFR ODOR
OF LOCK 91 FORE PROCFEDING WITH STEP A-9 (Qg NOT
ExCEED 2 WITHOUT HOLDING DEVICES ON INNER DOOR.)
A-9 Ft ELD PRESSURIZE THE PERSONNEL LOCK TO 10 PSIG AND CHECK FOR TIGHTNESS BY
APPLYING A SOAP FILM TO ALL WELDS, GASKETS AND SHAFi PENETRATIONS.
A-i 0 IF ANY LEAKS ARE FOUND, RELEASE THE PRESSURF, RVPAIR ANO RTEHT.
A-i 1 AFTER SUCCESSFUL COMPLETION OF 1 HE PRELIMINARY Trt OF TNt! PF (NN(.L LC)rK,
- RELEASE THE AIR PRESSURE FROM THE LOCK. REMOVE THE HOLDING DEVICES FROM THE
INNER DOOR.
field A-12 PRIOR TO INSTALLATION, CHECK FOR TIGHTNESS EACH REFI:RENCE CHAMBER ANO ATTACHED
LENGTH OF TUBING, BY PRESSURIZING WITH FREON TO ABOUT 70 PSIG AND TESTING ALL
JOINTS AND CONNECTIONS WITH A HALOGEN LEAK DETECTOR.
A-13 IF ANY LEAKS ARE FOUND. RELEASE PRESSURE, REPAIR, AND RETEST UNTIL NO LEAKS
ARE FOuND WITH THE HALOC,EN LEAK DETECTOR. THE SENSITIVITY OF THE LEAK
DETECTOR M-UST ai-1 x 10-5 ATM CO/SEC OR BETTER.
A_i 4 Ft ILO INSTALL RF:Ff.RFNCE CHAMBERS INSIDE OF DRYWFLL AND INSIDE OF Suer'pi SIr)N
CHAMBER AS SHOWN ON Fo. B. Reactor Vessel in place will not facilitate this installation of drywell Ref. Chamber.
A-iS CONNECT THE TUBING FROM THE REFERENCE CHAMBERS TO THE VALVES AND MANOMrTrB,
AS SCHI..MATICALLY 4HOWN ON FIG.B FOR THE DRVWI!LL REFr.RFNCE SYSTEM AND ALr)
FOR THI,. SUPPRESSION CHAMBER RI:FF.RF.NCF. SYSTEM. Do NC) I ADMIT WATER rn TNI:
tI FFFREN T IAL WATI H MANOMETER UNTIL AFTER Si r C-i IN PART "C
NOTE - THE EXTERIOR INSTRUMENTS FOR THE LEAKAGE RATE
TEST SHOULD BE LOCATED ADJACENT TO NOZZLES WHERE
TUBING CONNECTS TO DRYWELL. EXTERIOR TUBING SHOULD
BE MINIMIZED. BOTH TUBING AND INSTRUMENTS SHOULD BE
PROTECTED FROM WEATHER. INTERIOR TUBING SHOULD BE
KEPT AT LEAST 12 INCHES FROM STEEL SHELL EXCEPT FOR
PENETRATIONS. RESISTANCE BULBS AND TEMPERATURE
RECORDER LISTED IN B-i OF PART "B" MAY BE INSTALLED
AT THIS TIME, IF DESIRED, FOR TEMPERATURE READINGS
AND RESULTS FOR STEPS A-20 & A-21.
- 1967 - - - - - - - - - -
F.A.F-2 REV 4 12/85 MONTICELLO
CIIICA;c flhIII)(;E & IIU)N ('C)NlI'ANY
INITAL. TEST PROCEDURE CONTRACT 9-5625
h19I AND 0'. C LOSING VAI.VE s C. "E AND F".
A_i 6 Ot' IN VALV,
A-i 7 PRES-.UHI/t' (:OMI'LF TI: Ri ri-rci: CHAMBER SYSTEM WITH FREON TO AO')UT 70 r'sio
THROUGH VALVE 0". CLOSF VALVE 0'
A-i 8 CHECS 1 UBING. INSTRuMENTS. ANO VALVES WITH HALIDE Li-:AK Di-: t ECTOR, ToppIplO ALL. Lr.AP(1. (INTIL. SYl. I EM I - TIGHT,
A-i 9 PURGE ri-i-RrFERENLE: SYS TF.M WITH DRY NITROGEN GAS TO RF MOVE TM,- ?-REON AND
REPRES'-LII'I / I-TO APPROXIMATELY 70 P:41G. USINc, DRY NITROc.FN GAS.
A-20 As AN APPROXIMATE (HICK, HOLD PRF"-.URE. IN RI-:EERENCC SvsrFM i-OR A MI?'&IMIIM OF
24 HOURS, COMPARING INIIIAL A6-OLuJTF PRES-,JRF. WI II FINAL ABSOLUTE PRE'-,URF.,
COMPENSA1ED FOR TEMPERATURE.
NOTE - AIR TEMPERATURES ADJACENT TO EACH REFERENCE CHAMBER SHOULD BE MEASURED AND A WEIGHTED
AVERAGE AIR TEMPERATURE OBTAINED BY CONSIDER-ING THE RELATIVE SIZE OF EACH CHAMBER.
. FOR DRYWELL - CHAMBER "A" - 60 "B" = 4
FOR SUPPRESSION CHAMBER - "C" = 36%
A-21 IF ABSOLUTE PRESSURE DATA INOICAT ES A CONSISTENT DROP IN PRESURE WHICH IS NO
RELATED TO TEMPERATURE CONDITIONS, RECHECK TUBING, VALVES, ANO INSTRUMENT OF REFERENCE SYSTEM WITH LEAK DETECTOR.
A-22 IF NO LEAKAGE IS INDICATED, OPEN VALVE "C" AND LEAVE VALVES "B" AND "C" OPEN FOR THE OVERLOAD TEST IN PROCEDURE PART B.
A-23 As SCHEMATICALLY ILLUSTRATED ON FIG. A FOR THE DRYWELL AND SUPPRESSION CHAMBER.
INSTALL PIPING AND VALVES BETWEEN
(A) DRYWELL ANO PRESSURE GAGE:s (VALVES "A" AND "H")
() DRYWELL AND AiR SUPPLY (VALVES "A",,,J,, AND "K")
(C) AIR LOCKS AND AIR SUPPLY (VALVES "M", "L" AND "I")
NOTE - THE CONTROLLING VALVES FOR THE AIR SUPPLY AND THE GAGES ON THE GAGE LINE ARE TO BE LOCATED AT A DISTANCE NOT LESS THAN 600 FT.
FROM THE OUTSIDE OF THE DRYWELL E
DECEMBER ii, 1967
F.A.F-3 REV 4 12/85, MONTICELLO
Ciii,; 1IIItH;r 1. 1I;0N (.'o1l,v
S
INITIAL TEST PROCEDIJEE. CONTRACT 9-5625
PART B - HYDROSTATIC-PNEUMATIC OVERLOAD TEST OF
THE SUPPRESSION CHAMBER AND PNEUMATIC
OVERLOAD TEST OF THE DRYWELL.
DRYWELL AND SUPPRESSION CHAMBER INTERCONNECTED.
WET CONDITION
(SEE FIG. A & B)
B-i INSTALL Rf:sr-rANcE BULBS B-i TO 8-10 IN LOCATION SHOWN ON FIG. B AND CONNf.f..T
TO TEMPERATURE RECORDER LOCATED NEAR PANEL BOAROS.
8-2 INSTALL OrWCFLLS D-1 ro D-6 IN LOCAT IONS SHOWN ON Fio. B AND CONNF.CT TO DI W
POINT RECORDER LOCATED NEAR PANEL BOARDS.
B-3 (A) INSTALL TWO FANS IN THE ORYwELL LOCATED DIAMETRICALLY OPPOSI 1 E AND
TILTED UPWARD IkT ABOUT 930'-0" ELEVATION.
(B) INTALL TWO FANS IN THF. SUPPRI.SSION CHAMBER ON THE PLATFORM OIAML1RI(AI.(Y
OPPOSI I E TO CIRCULATE THE AIR AROUND THE 5lJPPRESION CHAMBER.
B-4 CALIBRATC RECORDING AND DIAL PRESSURE GAGE AT 70 PSIG AND INSTALL ON DRVWF LI..
AND SUPPRESSION CHAMBE.R GA;E LINE. (SEE Fia. A ) 0
B-5 OPEN THE VACUUM BRF.AKE.R VALVES (i 0 TOTAL - DWG. 220) CONNECTING THE OPVWF.LL
AND THE SUPPRESSION CHAMBER THRU THE VACUUM BREAKER VALVES AND BLOCK OPEN FOR
OVT.NLOAD ANO LEAKAGE RATE TESTS.
B-6 FILL THE SUPPR ION CHAMBER WITH WATER TO AM ELEVATION 1'6 3/4UBELOW THE EQATOR
(APPROXIMATELY 83, 700 CU. FT. ) AND CLOSE THE WATER CONNECTION.
B-7 IN'-r'f QT THF EXTERIOR OF THE SUPPRESSION CHAMBER FOR ANY LEAKAGE OR DISTORTION
FROM WATER LOADING.
B-8 CLOSE roe MANHOLE IN SUPPRESSION CHAMBER AND LEAK CHFCK BE TWEF.N c,AS.(r IS.
B-9 OPEN SHUTOFF VALVES "A" AND "M" AND BLOWOFF VALVE
B-i 0 CLOSE BLOwOFF VALVES "H", AND Jt1, AIR LOCK VLAVE "L" (VALVE "C" BEING OPIN
TO REFERr.NCE SYSTEMS.)
Bi 1 CLosc OR BLANK ALL OTHER CONNECTIONS IN THE DRYWELI. AND SUPPRFSSION CHAMBER.
- DzcEMBERI1,1967 - - - - - - - - - - - - - - -- -- S
F.A.F-4 REV 4 12/85 MONTICELLO
(1 IICA(() 11111)( 1. & 1IU)N (Mt'iNV S.LNITIAL TEST PPUR CONTRACT 9-5625
BI 2 Ca_osi. INN I-H OI)OR or 1HI I.tIr.K ON lt4v DI1YWF.LL (INNIR ICJIIAI I / INC. VALVI ri i)'-I
AN I) LFAVI. O(.ITI R D()()FI 01 7 IMI LOCK I.)PF.N
NOTE - IMMEDIATELY AFTER CLOSING LAST CONNECTION IN DRYWELL AND SUPPRESSION CHAMBER, OPEN VALVE "K" AND START PUMPING AIR TO AVOID POSSIBILITY OF A VACUUM OCCURRING INSIDE OF VESSELS.
Bi 3 OPEN AIR tJPPLY VALVE "K" AND PRFSSURI 7E v'-,I.- TO
Bi 4 S roe PUMPING AND CLOSE AIR SUPPLY VALVE
B-15 ON THE ORYWCLL. APPLY SOAP FILM TO ALL SEAMS O THE HLL AND NOZZLES.
C.AKF: T s or MANHOLES AND DOORS (ExcEPT OUTER L.OrK DrIU Arm "(IRT lOP 'l
NOT PRESSURIZED), TFST COVERS OF NOZZLES, AND VENT PIPES.
BI 6 ON THE SUPPRESSION CHAMBER, APPLY SOAP FILM TO ALL '.1 AP.i'4 or THI- it I I"
NOZZLES ABOVE THE WATER LINE, ALL GASKETS OF MANHOLES AND ALL TEST COVI
OF NOZZLI-S. ALSO MAKE A VI.UAL INSPECTION OF THE supRrSSION CHARI
THE WATER LINE.
Bi 7 IF A LrAK IN A WELDED SEAM IS FOUND (WRING THE SOAP FILM TI-ST AT 5 F'IG rTI-J A
ANY TIMF: BII-'ONt THE OVERLOAD PRESSURE OF 70 PSIG IS REAc.Hi.r,, THE
SHALL BE AS FOLLOW
(A) RELOASE PRI.T-'.URF TO ATMO'4P14I-R BY OPEN INi Bi owr'. i VAt VF
NOTE - IMMEDIATELY AFTER PRESSURE HAS BEEN RELEASED.
OPEN A LARGE ENOUGH CONNECTION TO PREVENT THE FORMATION OF A VACUUM IN THE VESSELS.
() BEF0Rr Rr:PAIWINe, ANY Li AKS OR OOING ANY WORK THAi MI(HT CAUSI-. A 'AU'.
lIST VAPOR -F'ACV TO MAKE SURI-. THAT IT IS GAS FREE.
(c) USE CHIPPING TOOL OR ARCAIR GOUGE TO REMOVE iHr OI I-I
() MAGNAFLUX AND INSPECT THE DEFECTIVE AREA THOROt1Oi-I V 0' r,iI S (r:) REPAIR BY WELDING.
(F) RADIOGRAPH THE REPAIRED WELD OR INSPECT BY MAONAFLUXIN( WHERE NUT
ACcrSSAOLE rOR RADIOGRAPHY.
(c.) RETEST, STARTING WITH STEP BI 1, EXCEPT THAT ONLY THE RrPAPc 0 WI LO
AND PREVIOUSLY UNTESTED WELDS SHALL BE INSPECTED WITH SOAP 'It-M Al 5 rur.
E1 DECF:MRER 11, 1967
F.A.F-5 REV 4 12/85 MONTICELLO
('IIIc,%(;I) &. LIN
LNITIAL TEST PROCEDURE CONTRACT 9-5625.
B-I 8 Ct.osv iii. Oull H IoOR OF THI LOCK ou -rER EOUAL.i/ ING VALVE ANC cLc,,-r.
VALVE
B-i 9 OrN LOCK VALVE ALLOWING PRESSURE TO RF.A(H Ar'FROXIMATEI..Y 5 PIC, IN I
B-20 APPLY.OAP FILM TO Oil TEN DOOR AND SEAMS OF LOCK NOT PRFVIOUSLv r:,.lI.CK1:O OURINC;
STEP B-i 5.
B-21 CLOSI.: LOCK VALVE "L" AND OPEN BLOWOFF VALVI,,I, TO RrLEA: PRESIIRr IN THE LOCK.
B-22 THE FOLLOWING CLLAI(ANCF. RULES ARE. MANDATOIY
(A) ALL UNAUTHORIZED PERSONS (AND ALL MOVABLE EQUIPMENT SUBJECT TO DAMAGE) MUST MAINTAIN A MINIMUM CLEARANCE IN ALL DIRECTIONS FROM THE DRYWELL OF 1200 FEET WHILE THE PRESSURE IS BEING INCREASED ABOVE 5 PSIG AND UNTIL THE OVERLOAD TEST AND FINAL SOAP FILM INSPECTION SHALL HAVE BEEN SUCCESSFULLY COMPLETED.
() PERSONS AUTHORIZED IN WRITING BY CHICAGO BRIDGE & IRON COMPANY MAY BE ADMITTED WITHIN THE AREA DEFINED IN (A) S ABOVE. AUTHORIZED EMPLOYEES OF CB&I. GENERAL ELECTRIC.
NORTHERN STATES POWER COMPANY AND NECESSARY OUTSIDE INSPECTION PERSONNEL HAVING WRITTEN AUTHORIZATION FROM CB&I WILL BE PERMITTED AT THE LOCATIONS OF THE CONTROLL-ING VALVES AND OF THE GAGES APPROXIMATELY 600 FEET FROM THE OUTSIDE OF THE DRYWELL
() THE PREVIOUSLY LISTED AUTHORIZED INDIVIDUALS MAY WITNESS THE FINAL CB&I SOAP FILM INSPECTION BY CB&I EMPLOYEES (STEP B-29).
(ri) AFTER SUCCESSFUL COMPLETION OF THE FINAL SOAP FILM INSPECTION AND DURING THE LEAKAGE RATE TEST OF THE DRYWELL, ONLY AUTHORIZED PERSONNEL SHALL BE ALLOWED ON OR ADJACENT TO THE DRYWELL AND THE INSTRUMENTS.
NO WORK SHALL BE PERFORMED WITHIN 25 FEET OF INSTRU-MENTS. VAL'...ND THE OUTSIDE OF THE DRYWELL. OR SUPPRESSION CHAMBER.
S
- - Dl;cIMeER 11, 1.967
F.A.F-6 REV 4 12/85 MONTICELLO
(IIIu.t;, Ii:si'.i: 4 Iu
N 1,1' L\\[. T1:.ST pRocEr)(JR;; CONTRACT 9-62
- Icforc prcssurizinq containment vessel above 22 psi's, vessel tcmpFture must be 30°F or higher. Should vessel temperature start to crop during test, blowdown should be started in adequate time to reduce vessel pressure to.22 psig before vessel temperature drops below 30°F.
13-23 Open Valve "K" and pump air into vessels to 35 psig.
8-24 Increase pressure from 35 psig to 70 psig in 7 pic increments.
NOTE. - AT THE PRESSURE INCREMENTS AND AT HOURLY INTERVALS, TUE PRESSURE READINGS OF THE DIAL AND RECORDING GAGES SHOULD BE RECORDED ON THE TEST DATA SHEET.
B-25 Close Valve "K" and hold 70 psig test pressure approximately 20 minutes.
13-26 Close Valve "I" and open Lock Valve "L" to interconnect air lock with drywell.
B-27 hold 70 psig test pressure for mother 40 minutes, adding or releasing air to compensate for temperature variations.
13-28 Open Blowoff Valve "J" to reduce pressure in the vessels and C air lock to 56 psig (design pressure)
NOTE - IF IT IS MUTUT'LLY AGREED TO START LEAKAGE RATE TEST AT THIS TIME (COINCIDENT WITH FINAL SOAP FILM TEST)
PRESSURE SHOULD BE FURTHER REDUCED AS DESCRIBED IN COMPLY WITH THE FOLLOWING: STEP C-l. BEFORE STARTING TUE LEAKAGE RATE TEST
STEP 13-29(a) PERTAINING TO THE LOCK AND STEPS B-31 THRU 8-37 MUST BE PERFORMED.
ANY HEATERS INSIDE VESSEL MUST BE TURNED OFF AND TUE VESSEL ALLOWED TO REACH TEMPERATURE EQUILIBRIUM BEFORE PROCEEDING WITH LEAK TEST.
3-29 Close Valve "J". On the drywell apply a soap film to outer door and outer seams of the lock, all seams of the drywell shell and nozzles, all gaskets of manholes, and bolted covers, all test covers of nozzles and vent pipes.
on the suppression chamber apply a soap film to all seams and
- test covers of nozzles. Also make a visual inspection of nozzles above the water line, all gaskets of manholes and the suppression chamber below the water line.
January 9, 1968 F.A. F-7 REV 4 12/85 MONTICELLO
('I IIC,%(;() 141t1l)(44 &. IIHN CnitI'.*NY
thITIAL TEST PRQjJ CONTRACT 9-5625
B-30 IF ANY LI AK IS EflUNO. THE ECILLOWING PROCEDURE SHALL BE FOLLOWFO
A L.IAK WHICH IS CONSIOERF.o TO BE OF SUFFICIENT MAGNITUOC TO AFFECT THI
.TRUC5URAL INIFOJIITY OF THE VE4SEL SHALL BE IMMEOIATELY REPAIRED AS
Df:SCRIBEO IN Si EP Bi 7, INCLUDING A 70 PSIG OVF.RLOAO TEST, BUT ONLY A
SOAP FILM TEST OF THF. REPAIRED AREA.
A LEAK WHICH IS CONSIOERO NOT TO AFFECT THE STRUCTURAL INTEGRITY OF THE
V,:SSEL BUT WHU:H MIGHT PREVENT A SUCCESSFUL LEAKAGE RATE TEST SHALL B E-
TEMPORARILY SFALO, IF POSSIBLE, OR THE LEAKAGE MFASUREU, AND THE TEST
PROCEOURE CONTINUED. SUCH A LEAK MIGHT BE IN A TEMPORARY CLOSURE, WHICH
COULD BE REPAIRED LATER WIThOUT THE NECESSITY FOR A RETEST. IF THE AIR
PRESSURE MUT BE RELEASED FROM THE VESSEL IN ORDER TO SEAL OR TO REPAIR
SUCH A LEAK, THE PROCEOIJRE SHALL CONTINUE, AFTER THE REPAIR, INTO THE
LEAKA.E RATE TEST OF THE DRYWELLAO SUPPRESSION CHAMBER (PART C)
WITHOUT REPEATING THE 70 PSIG OVERLOAD TEST.
B-31 CLOSE SHUTOFF VALVE "M" AT LOCK,
B-32 CLOSE VALVE "L" AND OPEN BLOwOFF VALVE "I's.
B-33 CLOSE VESSEL SHUTOFF VALVES "A". E
B-34 OPEN OUTER EQUALIZING VALVE ANO CHECK AND RECORD THE TIME OF BLOWOOWN OF
PRESSURE FROM THE LOCK, WHICH WOULD PERMIT OPENING OF THE OUTER DOOR OF THI
LoCK.
B-35 OPEN OUTIR DOOR OF THE LOCK AND APPLY SOAP FILM INSIDE OF THE LOCK TO ALL
NOZZLE OR SHAFT PENETRATIONS, ANO TO GASKET OF INNER DOOR.
B-36 LEAVE OUTER DooR OF THE LOCK OPEN.
B-37 CLOSE THE SHUTOFF VALVES "A" ON THE DRYWELL AND DISCONNECT GAGE LINES AT
VALVES "A". CHECK VALVES WITH SOAP FILM.
Drc:EMBER11,- 1967 -
F.A.F - REV 4 12/85 MONTICELLO
(IlIC,%(; IIItII)(;) IION C()?iINY S
INITIAL TEST PROCEDUE CONTRACT 9-5625
P A R T C - THE LEAKAGE RATE TEST OF THE
DRYWELL AND THE SUPPRESSION CHAMBER
INTERCONNECTED - WET CONDITION
(sEE. FIG. "A" & "B")
C-i THE MAXIMUM EXPECTED TEMPERATURE DURING THE LEAKAGE RATE T,9T EXcFED5 rH,
MAXIMUM TEMr'ERArURE NOTED DURING THE SOAP FILM INSPECTION (Sies B-29 ro B-37
OF PART "B"). REDUCE THE PRESSURE IN THE VESSELS TO THE FOLLOWING CALCULATED
GAGE PRESSURE TO AVOID THE POSSIBILITY OF EXCEEDING TIlE OESIGN PRFssjnc o' 56s'G
DURING THE LEAKAGE RATE TIsT OF 1-HE-vEssELs:
= (56 14.7) (460°F. MAXIMUM TEMPERATURE DURINGj
SOAP FILM TEST @ 56 -14.7 (4600F. MAXIMUM EXPECTED TEMPERATURE
DURING LEAKAGE RATE TEST) __J
C-2 VALVES "B" AND "C" ARE OPEN PER STEP A-22 ANO B-i 0. THE PRESSURE IN THE
VESSELS AND REFF.RENCE SYSTEMS WILL BE EQUALIZEO,
C-3 OPEN WATER RESERVOIR VALVES "E" AND "F" IN SEQUENCE TO ALLOW THE WATER TO FLOW
INTO DIFFERENTIAL WATER MANOMETER TO APPROXIMATELY MIDHEiGHT OP SCALE, AND CLOSE
VALVES 'E" AND
C-4 RELEASE AIR PROM THE VEKSE:LS BY OPENING VALVE "A" UNT IL ABOU1 6 INCHIS DIEPRENT$AL WATER PRESSURI IS INDICA I KD ON THE WA, ER MANOMETER. RrcHccx VALVE "A" FOR
LEAKAGE WITH SOAP fil-'.
NOTE - THE WATER DIFFERENTIAL WILL VARY WITH PRESSURE
AND TEMPERATURE CHANGES IN THE VESSELS. THE
WATER DIFFERENTIAL AT THE START OF THE LEAKAGE
RATE TEST (USUALLY MIDNiGHT) WILL PROBABLY NOT
BE 6 INCHES.
C-5 START THI FANS IN THE DRYWELL AND THE SUPPRESSION CHAMBER.
C-6 RECORD Ar HOURLY INTERVALS 1-HE FOLLOWING DATA
A1McVPHERIc I EMPERATIJRE, IN DEGREES FAHRENH,IT.
ATMSPHERIC BAROMETRIC PRESSURE, IN PSI. *
() VESSEL GAGE PRESSURE AS INDICATED ON DIAL GAGE IN P51G.
() VESSEL ABSOLUTE PRESSURE AS DETERMINED BY SUM OF () AND IN PIA = P.
5 *f air supported structure is used to enclose vessel for heatina, barometer must be located inside the enclosure to measure barometric difference between vessel and enclosure.
DECEMBER 11, 1967
F. A. F-9 REV 4 12/85 MONTICELLO
1 lI('.p',(.() IflhI)(;l. &. IILON CorstI'ANv
IN ITL&L_TSL D* J3 CONTRACT 9-5625 0
(i) D I FFERLMCF. IN F'R.SRLIRF. HE TWEEN VESSEL'. AND REF CRIf.N(.r -YSTF M. AS MI AT,IIRF I)
BY DII FFRFLNTIAL WATFR MANOMETER, IN INCHES
- OF WATER - 6 P.
- IT IS INTFNOFO THAT THE READINGS WILL BE MAOE: TO TENTHS
OF AN INCH AMC I:S-rIMATF.o TO NEAREST HUNDREDTHS OF AN INCH.
(F-) INTERNAL AIR TCMPF.RATURES, (i. A. T. ), IN DEGREES Pankine. ( °F + 460)
() INTERNAL WATER TEMPERATURE (IN SUPPRESSION CHAMBER ONLY) (I, W. T. ) I N
DEGREES FAHR.
(H) INTERNAL DEW POINT TEMPERATURES (0. P. T. ) IN OEORFES FAHR.
C-.7 ArT ER TWO CONSECUTIVE MIDNIGHT TO DAWN PERIODS (AeI'Roxl MAT ELY 30 I40IIRN) or
RELATIVELY UNI FORM TEMPERATURE, CALCULATE THE PER CENT LOSS (AS A NI(ATIVF.
VALU() OF TOTAL CONTAINED AIR FOR BOTH THE DRYWELL AND SUPPRESNION BY THE
FOLLOWING FORMULA
PR 1 L I M IN AR Y
P.R CENT L.oss = 100 j INITIALP - (FINAL A P) INITIAL l.A. T.
(Wi THOUT VAPOR INITIAL P x 27.7 FINAL I. A. T.
PR F S S u RE Co R -
B ECTION)
C-8 FROM THE INTERNAL DEw PoINT TEMPERATURES, DETERM INE THE WATER VAPOR
PRESSURES - W.V.. IP S1.
NOTE - THE WATER VAPOR PRESSURE IS THE SATURATION PRESSURE OF STEAM AT THE DEW POINT TEMPER-ATURE (SEE STEAM TABLES)
C-9 CALCULATE THE APPARENT PER CENT LOSS -(AS A NEGATIVE NUMBER) DUE TO A CHAMOF
IN WATER VAPOR PRESSURE BY THE FOLLOWING
APP AR E NT -
PER CENT Loss= 100 FINAL W. V. IAL I. A. T.) - INITIAL W. V.
t IAL P L I. A. T.J (L.NA L -
DI - C.EMBER11, 1967 -
F. A. F-10 REV 4 12/85 MONTICELLO
CIj(c,(;) 1ltU)(.I iSi IIU)N ()MI',NV
1.IIAL TEST PRQL1R CONTRACT 9-5625
Ci 0 CAI_CULA ii. 1I4I. :r,r1HI-:&:,Iu i'R cier icNi. (As A NV(;ATIvI NI,MRrR)gv THr Fr,I.l.rIwIpl(,
Cc,renr:rIo PER CVNT Lass = PRIL.IM. Prim CI:NT Lass - APPARENT PIR C
NOTE - COMBINING THE EXPRESSIONS IN PAR. C-7 AND C-9
INTO ONE EXPRESSION RESULTS IN THE FOLLOWING:
CORRGr7ED **.j I-
Prn CENT LOSS = 100 IINITIAL OP + INITIAL W.V. -
INITIAL P
_J [77
('FINAL L P FINAL W. V. ' (L;.IAL I. A. T.
I.A.T_J 27.7 , I
C-il THE CALCULATED PER C.NT LOSS OF S,p C-10 SHALL SF !'RESFNTED TO GENERAL ELmCTRIr;.
AND THE TEST SHALL THERI UPON BE TERMINATED UNLESS CB&I IS NOTIFIED THAT ADDITIONAL
TESTING IS DESIRED. IN THE LATTER CASE, THE AOOITIONAL TESTING SHALL BE THE SURJECT
OF MUTUAL AGREFMFNT BETWEEN CB&I ANO GENERAL ELECRIC.
. C-12 OPEN VALVE "J" TO RELF.ASF PRESSURE FROM SUPPRESSION CHAMBER AND FROM DRYWcLL
UNTIL BO1H ARE AT ATMOSPHERIC PRESSURE.
C-i 3 OPEN MANHOLES IN SUPV'RE5ION CHAMBER AND OPEN A LARGE ENOUGH CONNECTION IN
DRYWELL TO PREVENT FORMATION OF A VACUUM.
C-i 4 WITHDRAW WATER FROM SUPPRESSION CHAMBER.
C_i 5 REMOVE ALL OVERLOAD AMC) LEAKAGE RATE TEST EGUIPM ENT FROM DRYWELL AND SUPRE5SION C H AMBER.
CHICAGO BR,DGE & IRON COMPANY
DICI-MBER 11, 1967 F.A.F-11 REV 4 12/85 MONTICELLO
APPENDIX F
Attachment "B"
Code Certification Forms and Drawings
Code Form N-i - Drywell and Suppression Chamber
Code Form N Air Lock
C. B.&1. Drawing 2 Drywell Shell Stretchout
C. B.&1. Drawing 2 C Penetration Schedule and Orientation for Suppression Chamber
S
F.B-i REV 4 12/85 MONTICELLO
F'OUM N-I %1ANLIFA(:TtJHIRS I).\\TA nEI'mr FUll NIICIJAR VES.SEI.S
AM.rcquirrdIw the l'mviminn.i iii thr (;nile fluirsi
Manufactured by... ICAGOBR,OGE&
. (Mom. and address,,t Mant.tartt,rp,l Manufactured for N'mTHFRN 1 Pow :.......-....M.".'.".... M I';.r. ***,___,_......................
INfo,. and.,.klr.s..,f Type....Y!.!I...............Veqspl No......C4430....(......... ) Nail Rt No,...N9...g...yr. nuilt....1 968.... (Marts. m' Van.) (Ta,sk,Jaek.t.d.It..t F...) jMIru. S.n..i N" L (Stale & N'..'. N"
Items 4.8 mcI. to be completed for single wall vessels, jackets of jacketed vpsspls, or shells nf heat errhange,s.
DRYWELL SA516 CR. 70 63575.75,1.0.1.25,1.3125,1.5.
4, Shell: Mater alE.?.,..I?... (Kind & Spar. No.) °.0r......Q,.QQ........ fhickness........ in. Allowance......0.10. t)iam.6Z.ft...Q... in. LengthlO5ft.i.i.. in. (Min.eI ranse specified)
Seams: L.ong 'v......YE.s.....1.0.0.S........_......Effieiency.._..........I.0Q....% (If (Jss 8)
Girth DBL. " WF.LD H.T.t.S.EEP!!WBEW. X R . 1.00" f( of Courses
........... (h) Mst.i.l.F.8.X...TD..A3.O.O.............. i.s....10°P0 J.Q* SA5T 6' Gn 70' Heads: (a) Materlsl..tPX..T...&.VV.............T.S...Z°i.000.
Location Crown Knuckle Plliplical Conical Hemispherical Flat Side to Press.
(Top, bottom, ends) Thickness Radius Radius Ratio Apex Angle Raditi Diameter (Convex or Concave)
Top ... .L3...25 .,_, *,,2...,....._.._...,., ..............c.q.lt.c.&yA........
Ifremovable, bolts used........................................,.4............................Other fastening..............................,...,.................... SA - *..............................3.............................
(Material. Spec. No., T.S., Sire, Number) (Describe or ailseb katch)
jacket Closure................... _....................................................................................................-............................................................. _............................. (Describe as oget' & weld. bar. err. II bar *ive dimensions, describe or sketch)
Charpy Impact.............. 2.0 It.lb Pneumatic Constructed for *8r'tMa4loex>Test 70 operating press.Z...............psi at Max. temp............F at temp. of.......................0........ °F. MMKWIWIr, Pressure.................Pat
Items 9 and 10 to bepleled 1Tie sections.
Tube Sheets: Stationary. Material.................................... Diam............................... in. Thickness.................in. Attachment....................... (Kind & Spec. N,.) (Subject I.. press.) . (Welded. flatted)
Floating. Material.................................... Diam............................... in. Thickness..................in. Attachment............................ (Kind & Spec. No.)
inches Tubes: Materisl.............................. O.D................ in. Thickness........................or gage Number..............Type..........................
(Kind & Spec. No.) - (Struihi or U)
Item.. II to 14 mcI. to b'nrnpleted Inc inner MINOR SUPPRESSION SA'51 6 GR7O ' 533.584.47, - T,,s CHAMBER Nominal 1.0625 Corrosion FVfAJO DIA.
11. Shell: Mute ial..' P.2.T.S...2i9.'.P.PP.......Thickness'.......... in. Allowance..... O...in. Duam...Sft.....O.jn, ISIC,g*27 ft....S..in.
(Kind & Spar. No.) ' (Mm. at caner speciFied)
.. 12. Seams: Long..!.s..'!Y H.T..i0IE...... (Welded. Dbt.. SInl.) (Yes or No) (If Claus B) x..... Efficiency...............1.0.......
Girth...D.!t..MI"...WAE9............H.T.S.EE... X.R......................ES °',....No. of Courses
- 13. Heads: (s) Material.....NOiE T.S...................(b) Material....... T.S.................(c) Material............................ T.S.....................
Crown Knuckle Elliptical Conical Hemispherical Flat Side to Press.
Location Thickness Radius Radius Ratio Apex Angle Radius Diameter (Convex or Concave)
Top, bottom, ends.................. ......._. ............._......._ .................. _...._...........................
Channel .. ....... ............. .................. ..................... ..................-......................-......,--.... -...........
Floating .........................................................................-.........................-.............. ..... -..................................... -
Ifremovable, bolts used (a).............................................. (b)...................................... (C)..............................Other fastening............................... (Material. Spec. No., T.S., Sic.. Numb.,) (Describe or attach sketch)
Charpy Impact.......2.0ft-lb Pcwumusio )
- 14. Constructed for specified vemcue Test 70 operating press 2...........S.6.. psi at Max. tamp..28.....°F a temr.. of............0......°F Comhinstion.1 Pressure..................... psi
If Pnstw.ttt Iit'at.Treut.d.
2 LIat other internal or esieresi pr.v.tir.s with rn,nri,Ient ten.pnst,re when applicable.
NOTE 1. VESSL SueAssrrsnu irs wc.Mr PWHT A'.i A. KNUC'.KLE. Ur'r'!.'R & LOWER 25, 961' FLANGr Aw..cMnt.I r Fit I it Hr'r TPr'ATFI.
GO U. ALL PENETRATIONS WFRE ASNEMBLrD INTO INSIP'r Pi.s. n SHrLI. Pt. w, AND CAT -rGORY D
JOINTS PWHT, CENT (248) 1 "g' STAINLESS STEEL PFNF IRA? tONS, IN THE SHOP.
NOTE 2. LOCK SUBJECTED TO AN OVERLOAD TEST AS A SEPARATE UNIT SHOP TEST.
DURING THE COMPLETED DRYWELL OVERLOAD TEST, OUTER DOOR OF LocK IS OPEN, FIELD INNER DOOR CLOSED & SUBJECTED TO TEST PRESSURE. TEST
F.B-1 REV 4 12/85 MONTICELLO S
FORM N-I (back)
Items below to be completed for all vessels where.ppUc le.
IS. Safely Valve Outlets: Number.N N.r(A.S.M...-.. ize......................_..... Location ...................................-.........-.....-........................
Nozzles:
Purpose (Inlet, R.in(or.rtxient How Outlet. Drain NumbeL Diem, or Size Type Moli'r,al Th,ekriess Mst.'rt.l AIls, hpt SEE Dwc, v2 & Dwo. N2C CON TRAC-r 9-5625 rop IOMF'I.F1' I l I'! NI I hA ' , Ph N I 1 I/\\ I LISTED ON THE ATTACHED SHF.ETS WrRF WELOFfl INTO IP'.I ii Pi.. A...-' MIII.11. I". r WI L() III AT I I" Al I' IS5 BtjiF WELOSF CATF..6RIES A& BWF WI. Liii ioAi,t.I'.IiAr'mu. A'..t INRPECTED BY THE MAGNETIC PARTICLE METHOO OF INSPCTION.
Inspection Miholes, No...... J............ Size.....24............ Localinn I !..P L'Th.'Q. SA51 6 G............A300 WrLDrD Openings: .......L......... Size......48...........LoiaI,o.,.S.uErR .Cttvt.t_tt.. 5.5! (3 Gj. 70 Fox TO A300.WFLOI:o Thraded. No. ........... Size........................ Local,n........................................................................
LJRYWELL Suirrrvc.lc,l.' hlAIli'i rs w. i o '.~. Siipr'ci, .Ir1N
Supports: Skirt.....Y............. Lugs..........................Legs....................._..... Other ... AttaChPd...0..ItSMij. (Ye. or No) ($imber) {NumI'.,) (U.ril- ' (Wh.. & Ho)
19 Remarks: ....CoNTAiNMr1JT PRESSURE INiLuOiNc. A T.T'... HArFO CON..
(DlsvwtcLL)i.i0USING .c?....
COtRO.L... PYWELL TO PROVIDE STORAGE FOR A WATER POOL TO CONDENSE STEAM WHICH PY H. RELEASED IN THE EVF.NT OF AN OPERATING ACCIDENT. VENT LINES CHANNELING THE STEAM FROM THE DRYWr.LL TO THE SUPPRES5ION MAM9ER ARE A PART OF THIS SYSTEM. (Dite( desenptlon at service for which vesset was rte.i.ned)
CERTI Fl CATION OF l)lN GN
Design information on ftc at.SGP... BRIDGE &I0N ............................-............
Stress analysis report on file J.P. ..&IQ.N..C.Q.MIINY ..........................
Design specifications certified by......._T.... Prof. Eng........... -........ State.0.. E
Stress analysis report certified by . l.V...ERE...................... Prof. Eng..................... State... ILL,.... Reg. N0.25.6.12
We certify that the statements made in this report are correct and that all detaIls 01 materIal ocx,.consirucrion. no workniansnip 01 lOis pressure vessel conform to the ASME Code for Nuclear Vessels -.
Date................ ....'?...t9..f Signed. ! SHOP (Manufacixirer) .-....._.',
- r. FIELD Certificate of Authorization Expires....................2G '........L....Z7.......... ... - . .'-... -..
CERI1 Fl CATE OF SI10I' I NPECiION........ -....
VESSEL MADE BY CMICAGO. J*9GE. **J.9N I. the undersigned. holding a ialid commission issued by the National Board of Boiler and Pressure Vessel Inspec(prs anif/or the Slate ofloyed ......S.e.am I&I.. °..........
have inspected the pressure vessel described in this manufacturer's -late report on..................................... '.......... and state that to the beat of my knowledge and belief, the manufacturer has constructed, this pressure vessel in accord.oce with the ASME Code for Nuclear Vessels.
By signing this certificate neither the Inspector nor his employer makes any warranty, expressed or implied. concerning the pressure vessel described in this manufacturer's data report. Furthermore, neither the Inspector not his employer shalt be liable to any manner for any personal injury or propeUty damage or a loss of any kind arising from or connected with this Inspection.
Date...................... 19 ' 7
,.....(.. ..,....,('. Commissions
CERTI FICA'rI, OF FIELD ASSEMIII.Y lNI'1-:(:T1ON /
I. the unde siitned. holding a valid commission I ,by the al Board of Boilco. and_Prssure Ve47&jn pectors sad/nt the Stale of............)..aawr....._......... and employed of........ i.o .........
have compe*°d the statements in this manufacturer's data repârt with the described pressure vessel and sta that parts referred to as
data .........................-........................-..-.......................................... not included in the certificate of shop inspection have been inspected by me and that to the hest of my knowledge and hti.( the msnu(ct'I,rr has r,,nstr.,'fed and assembled this pressure vessel in accordance with the ASME Code for Nuclear Vessels. The described vessel was jnspt'.ted and xuti1reted to a ',o PN I-UMATt C_MYOROaXATI C arxetatW test of......_...I.U.. psi.
F.B-2 REV 4 12/85 MONTICELLO
FORM N-2 MAN FAC1!RF1tS' PARTIAl. I)AT't RFN)RT A P.vt ci a Nudes, Vensel F.b,ic.i,d by One Manufacture, for Another Manufacture, AS required by the Prnvinionn of the 'SMF. Code Rulrn
-.GREENVILLE. PENNSYLVANIA Nan.I.ctr.d by .... (Rem. aid.d.t,..e or saufertupe? 01 ç.N)
(b) Isovlactured (or..........................................'°°' & -..c (N..e and eddyeSs at m.aul.ti,ini a( ea.,pi.t.d maria., *.esej)
- 3. ldemttflestio..aiIuactuerus S,n.l No. of part.......C*4*430 bOA -
101.103.142,
Coastructed AccOrding to Drawing pio.....4.8.......5]............ Drawing Prepsted b,... c....c.GP
Descnptioo of Pitt insp.ct.d.._..!'.J° _ _....__.._..._.........._.._................
- 3. Resrk.:..._..Th5..!!!.!!J°..SC cL __._.
AND IS OESIGNED AND CONSTRUCTED UNOER THE RULES OF SECTION III OF ThE ASME
CODE FOR NUCLEAR VESSELS.
- ....... (Brt.f d.scripttoft 01 servIce for which ernest part was d.slinad)
We certify that the statements made in this report are correct and that all details of m.tertai, d.aiga, caustroctice, =it warhap of this presaure vessel conform to the AVE Cede for Nuclear Vessels.
Date Sign.ddk ....1 C. Cn..~. 81JLL250._.
) (Manufac7,.rt
Certificate of Aathorisattou Espires CERTIFiCATION OF DESIGN
Design information on file...CO JIi*
Stress.iaiysia report 00 nil at.. I.E.tE9._!.Lc?0E...Pn.
Theodore 0. Brown Calif. C16628 Design apecificattons certified by........-.-..--............._................ Prof. Eog......_......-. S*at........... it.g. rso_...._...
Stress anaiyaia report certified b7W ................................ Prof. Eng............. . te.J.. Reg.
CERTIFICATE OF 5HP INSPECTION
I. the undersigned, holding a valid commission isaued by the National Board of Boiler and Pressure Vessel io.pectora sad/or the State and employed by.....'.a..L4aL._ -.--...--" *1 inspected the part of a preasare 'easel described to thin manufacterer's partial data
report i9t..L, and elate that to the beat of my knowledge and belief. the.anotsctwer has e.essctad this part in accordance with the ASE Code for Nuclear Vessels.
By signing this certIficate, neither the Inspector nor his employer makes an y warranty. espreved a, implied, coaeersisg the part 4.-
scribed in this manufacturer', partial data report. Furthermore, neither the Inspector not his mnpinyer shall he liable is -, ui5' in.
any perecesi blilary or property dsaagt or a loss of any kind s,4ag from or coenected with this inspection.
I.-
- Commissions "
inspactom Bi5mstais -- - RaUaI Bmmd or lists said Re.
00 fBI F. B-3 REV 4 12/85 MONTICELLO
14)RM \\-2 (.hr,rk)
Items 4-4 lad, to be cc- -(pied for sintle wall vessels, jar a'. a,Uar -teal,e,..lq. a', 'thrlis of )iest.tch.aa-,a.
- (AD1 7O.(OO......T)t,ckn.a'i.t 1J,iun. Alln.,itflce....°.....iti. , nal/lCorvnoinn,***8
- 4. Shall: r L.sui.11..it......ja.
(Kind pee. He.) (Mm 04 Rant. *pecili.d) 11 S. S.ems: ..... Efftriei'y . 10.
GirthT.RT ' ........ ZR No. olCon,iea'.......3.
Muds: (a) MsterIaIA5.6..(P0). is.70,000. (h) Malenal T.. Conical H.,na.ph.r,csl Flat S. a..
Locst'in ("own Knuckle Filipiut a)
(Top bolt' ends) Thickness Radius Radius Ratio Apes Anile Radius Diameter (Con.. or Cone.)
iercr.ón ENO ,,, ' c/a'..........................
(a).5aIt.Fi a....................................................................................................... "4' EXCPt lOP ENO... 1" a'................ ..................................................................................................
LItQ......... ................
If removable, bolts used Other f.nien,ni 000P5. ARCP.5SUR..EAXU.... (Malerlat. PP.' N 1.5.. Sue. Numh.,t (fl..rh. or.,,.h Ietch(
jacket Closure:........................................................................................-................................................................................................................ (fle.c,,bt *. os.. and weld. ha,. ale. It ha. *... dImensions. it halted..l.5.rihC or sketchI.
Charpy Impact._.............ZO... ft.Ib
- 4. Constructed for specified operstunt pres'aure 2.......... 56 pvu at mat. temp.........281 at r.m.. ea or
Item. 9 and 10 to be completed for tube sections
- 9. Tube Sheets: Stationary. Material.............................. Diem............................Thichness..............in. Attachment............................................. -
(Xln.4 ai Spar. No.) iSumh,.a't in p...amwe) (Welded. Bolted)
Floatiii. MateriaL.............................. Diem...... Thickness............. in Aitaehm,nt..................................-........
inch..
- 10. Tubes: MateriaL....__._.....__.-.-..O.D.._ ......_......in. Thickness........................ at gage. Number.................,Jype...................... (Si,. W U)
Items 11-14 mc). to be comp.id for inner chamber, of achateut vesSels, or channel, rat heal p.rWjni.rq
Nominal Corrosion
- 11. Shell: Maims)......... _.............,,.,. T.S........................... Thickness..........in. Allowance..............in. Diem........ ft.........in. Lenith....... ft.......an.
(Kind ga Spec. H..) (Mm. of Rsn. sp.cItl.d)
- 12. Seems: ........ H.T. '..................... X.R........ fl'mciency................................... ye (If Class B)
Girth...................... 0.1.' ................. X.R............_......................... No. of Courses..... -........ ................................
- 13. Heads (a) Material..... T.S..................... _. (b) Material..........................................._...T.S.....................................
Crown Knuckle Elliptical Conical Hemispherical Flat Side to Prrv,u,e Location flieki teas Radius Radius Ratio Apex Angle Radius Diameter (Convex or Concave)
Top, bottom, ends Channel
If removable, bolts used (a) - ...... (c)............._............ Other fa.tes&n.........,,,.. .._......
(Describe or sitach abeich)
- 14. Constructed for specified Charpy at temp. of..................................F operating praaeurv ............................ psi at mal. temp............................ °F
Items below to be completed (or all vessels where applicable.
'15 Safety Valve Outlets: Number.......... _._...___..... Sixe..._........-........-..... Location._....,..._...._._.._.... .... ._....-
.16. Nozzles: .
Purpose(lnlet, . . Reinforcement Material Thickness Material How Attached Outlet, Drain) Number Diam. or SIze Type
- 17. Inspect,.. Manholes, No, Slsa..,......._. .. Location Openings: Hatidholea. No..-.--..-....-....... Sizs....,._._.____...... Location..........,.............,............................... ..........................
Threaded, No..,.....................,.. Siz...._.....-........ Location....._.._.-.....--....... -.--.---.......
1$. Supports: SkIrt.............,.. 1igs.........,......,...... Legs....-....................Other....._........-....... Attached. ......_..._..._.._........
(Y.a of N.) . (liumber) (Tiseniunc) (D..r.lb.) (WIie.e a tow)
'if Poat.ld Heat-Treated.
51.1st.th.e isaternal or eatens.) preaemw with coincident I. a.tww wie. applicable.
F.B-4 REV 4 12/85 IPI 00
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