ML20011A177

Test Results from Full Flow Steam Test Program on Steam Safety Valve

ML20011A177
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	07/15/1981
From:	Kimbrell M, Tanya Smith WYLE LABORATORIES
To:
Shared Package
ML20011A176	List: ML20011A175 ML20011A177
References
RTR-NUREG-0737, RTR-NUREG-737 45711-01, 45711-1, NUDOCS 8110080113
Download: ML20011A177 (22)

Text

{{#Wiki_filter:p TEST REPORT 45711-01 REPORT NO. l*M 45711 i OUR JOB NO. )lENTIFIC SERVICES AND SYSTEMS GROUP A80627 .fuNTSvlLLE. ALABAMA YOUR P. O. NO. N/A Dalryland Power Cooperative CONTRACT P. O. Box 817

1. 3 La Crosse, WI 54601 PAGE 1 of PAGE REPORT L

J OATE July 15, 1981 1.0 PURPOSE The purpose of this report is to present the test procedure used and the test results obtained during the performance of a full flow steam test program on a steam safety valve. 2.0 REFERENCE I 2.1 Dairyland Letter of June 8, 1981, C. W. Angle to C. Poplit.,

Subject:

I " Blowdown Testing of LACBWR Safety Valves." 2.2 Dalryland Purchase Order No. A80627 30 MANUFACTURER T / Crosby Valve and Gage Company Wrentham, Mass. 4.0 TEST SPECIMEN DESCRIPTION o The test specimen was a Crosby Steam Safety Valve, 3XM2X6-HCU-65 Specification, 3" Inlet, 6" outlet; Serial No. 62-27-009 5.0

SUMMARY

A 3XM2X6 HCU-65 Crosby safety valve was subjected to blowdown testing in the Wyle high flow steam system. Steam actuations were conducted at various ring settings, and the following measurements were recorded: set pressure, rescat pressure, lift, valve temperature, discharge pressure, and steam flow rate. Test data are included in Appendix ll. b e.,. =..- = w. } { STAT AL M

== *~*n m ~ w m*"-' 9UNY O s_a rry c.. Fraz le r TEST BY STEAM SERVICES ,ee,n, oui,. m. oeposee ano says the intorp te conte.neo in in.e report.e too resuit of con peete _,/' c re ivy renoweted t,dts no is to the f his knowieoge true end correct in PROJ. ENGlNEER /Jr 3 M-ffy tu m gosv 9 g g g'" / u, iceptkne in7 . is I/ - WYLEQ.A. D ano swom t ~ sue k M. J. Kimbrell g y/ [,' y -.w uo..neno,ortoosi.,eo, g eso., P 8110000113 811001 U A 1. Jd .e 76 $DRADOCK 05000155 PDR w

PAGE NO. 2 TEST REPORT NO. 45711-01 / 6.0 SYSTEM DESCRIPTION ) 6.1 Full Flow Steam System Description A canplete description of the Wyle full flow steam system is presented in Appe,ndix 1. The Dairyland test was conducted with this system and a por-tion of an additional system (Figure 2) that was used for 8WR Owners Group testing. Two photographs of the test valve, as Installed in the test system, are included in Appendix 1. 6.2 Instrumentation All test instrumentation used in the performance of this test program were calibrated in accordance with Wyle Laboratories' Quality Assurance Policies and Procedures Manual, which conforms to the applicable portions of ANSI N 45.2, 10 CFR 50/ Appendix B, and Military Specification MIL-C-45662A. Standards used in performing all callorations are traceable to the National Bureau of Standards. A listing of instrumentation used during the test program is presented in Appendix 1. Physical locations are shown in Figure 3. 7.0 REQUIREMENTS, PROCEDURES AND RESULTS 7.1 Requirements The test specimen shall be installed on the high flow steam system and pressure activations conducted at various ring settings to determine blow-down characteristics. Measurements recorded shall be valve body and spring temperatures, set pressure, reseat pressure, maximum overpressure, disc lift, discharge pressure, and flow rate. 7.2 Procedures All ring settingt were determined by the customer and a Crosby Field Service Rep.esentative, and the rings were set by the Crosby representative. The number of actuations were determined by the customer. A tctal of 14 test runs were performed by direction of the customer. 7.3 Resu(ts Customer selected test data are presented on data sheets in Appendix il along with X-Y plots of representative actuations showing set pressure, reseat pressure and lift. Steam flow was calculated from measurements taken from a Venturi located upstream of the specimen (Figure 3, Appendix I). A repre-sentative X-Y plot (Run 14) of Venturl Zig,I measurement is shown in Appendix 11. Steam flow during Run 14 was calculated in the following manner. l WYLE LABORATORIES Muntsville Facil'ty

r a L PAGE NO. 3 )1 TEST REPORT NO. 45711-01 px 7.0 REQUIREMENTS, PROCEDURES AND RESULTS (CONTINUED) o [' 7.3 Results (Continued) The rate of flow equation for any gas flowing at subsonic conditions, taken from "ASME Research Report on Fluid Meters, Equation 11-111-178," Sixth Edition is: M = 358.93(CYd F )V P h, a Yl-8"

where, M = Flow Rate, pounds / hour C = Coefficient of Discharge =.68550 (from Badger Meter Co.)

'n Y = Expansion Factor =.97226 (from Badger Meter Co.) f d = Throat Diameter = 8.129 Fa = Area Factor = 1.00796 (from Badger Meter Co.) $ = Beta Ratio =.85 Run 14 9; = Density of Fluid at Venturi, Ib/ft3 = 3 518 @ 1470 psia sat. (measured) Run 14 h = Venturi Differential Pressure, in. of water = 20.25 ) (measu red) = 358.93(.6855) (.97226)(8.129)2(1.00796) V(3.518) (20.25) i Run 14 M l-(.85) ? Run 14 M = 194,521 lb/hr a As can be seen fror-the Venturi A psi plot for Run 14, at initiation of b steam flow (at time of valve opening), the Venturi Apsi shows a spike for about 1.4 seconds after flow has started through the specimen. This is b typical for this type flowmeter and the data during this spike is not con-sidered valid for flow calculations. Consequently, the above flow calcula-tions were made at approximately 1.4 seconds after the specimen started to open. At this time, the valve lift was 0.38 Inches. c O b ~ WYLE LABORATORIES HuntSvHle Facility

I PAGE NO. 5 {,, TEST REPORT NO. 45711-01 L' s 1 6 9 h ? APPENDIX l HIGH FLOW STEAM LOOP DESCRIPTION 'kJ 4 T f 1 ( I i 6I r I i u l l P* bO R WYLE LABOftATOftBES Fl Hun:svine reciedv

Pcg3 No. 6 R;p3rt N3. 4571i-01 HIGH-FLGV STEAM LOOP DESCRIPTION

== Introduction:== The Wyle High-Flow Steam Facility has the capabilities for valve operability qualification per NRC Regulatory Guide 1.48 or ANSI 278-2.4. All test equip-ment and instrumentation used in conducting the test programs comply with th3 requirements of the Wyle Laboratories quality Control Manual, which con-fcrms to MIL-C-45662A and the applicable portions of ANSI N45.2 and 10 CFR 50, jppendix 8. System

Description:

Th3 Wyie High-Flow Steam Facility (Figure 1) was designed to determine the cparating characteristics of Safety Relief Valves under full-ficw and full-lif t conditions. Secam for the High-Flow System is provided by two Holman boilers that can be cparatec independently or in parallel. The boilers are usually fired by natural g0s, but in times of natural gas shortages, are operated on a propane standby system. Each boiler can provide saturated steam at a flow rate of 15,000 lb/hr atamaximgmpressureof1700psig. Accumulation for high flow is provided by two 454 ft accumulators (denoted as AI), which are connected to a third accu-l mulator (A2) of 450 cubic feet. These accumulators are shcwn in Figure I along l with the associated valving. Principal valves in the system with their asso-clated function are as follows: Size Designation Function 3" VI Servo actuated control valve between Al and and A2 and in parallel with V2. I 10" V2 Main-line servo actuated control valve between l Al and A2. 2" V3 Servo actuated drain valve en bottom of A2. l 3" V4 Servo actuated bleed valve on A2. 10" VS Air motor controller isolation valve between Al and A2. 1" V6 Manua l valve. Tha servo controller valves VI and V2 control the inlet pressure camp to the tact valv.e and can be adjusted to deliver inlet ramps at any ramp between 2 anc 200 psi /sec. Typical system operation, af ter appropriate calibrations and temperatures staoilizations, is to hold A2 at a pressure (approximately 1000 psig), wnich is dependent upon the type and set pressure of the relief volve uncer test and with Al at a higher pressure (1350-1500 psig). VI is then actuated to partially open posit *cn to give the desired rate of pressure increase in A2. At a predeterminea pressure, less than the relief valve set pressure, V2 is progrannec to a partially open position to increase the steam flew and

((. Pcg3 No. 7 R; port No. 45711-01 I' t, ..} and rate of pressure increase. At a predetermined time, V2 is opened an addi-g. g; tioital amount, usually to 100%, to provide full flow to the test valve. During this time, the inlet steam pressure has reached the test valve " set" pressure and the valve opens to full lift. After the test valve has opened and the inlet pressure. has reached, in most cases, 103% of set pressure, the system pressure decays and tive test valve closes at its reseat pressure. During the full-flow portion of the valve c/cle, discharge pipe restrictors develop the appropriate backpressure to simulate actual power plant conditions. i 6 )I uh - 1 51 L e i Q< \\ t l l 11 u,O m i't i!

FROH // ^' BOILER Q vE p TAILPIPE ^ [ $[ 3 A ACCUMULATOR 454 ft 1 g .s Q_ f o CONTINUOUS BLEED 3 f( 4 3 A ACCUMULATOR 454 ft TEST 2 y; - --l A ACCUMULATOR 454 ft y VALVE g "8 > + - F-CONTINUOUS BLEED C o' ---D d CONT lNUOUS I" MANUAL V 3" CONTROL BLEED 1/4" M [ 3 VALVE VALVE (INTERMITTENT V) BLEED) I" l V4 (VENT) 2" FIGURE 1 HIGH FLOW STEAM FACILITY DIAGRAM

Page No. 9 L l' s Report No. 45711-01

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hn STEAM CHEST TEST SPECIMEN 3'l (CROSBY 3X6 SAIETY VALVE) 10" SCD 80 0 < 8 o._ I : 12' 3 e I 8' FLOWMETER, BADGER METER, INC., DWG. NO. CD-950525 (VENTURI) h A ,A 10" SCO 80 rp it 8'-7" p w 14" SCD 30 A n 3'-5" A2' ACCUMULATOR ()) t' ] 11'-6" ) - l (, FIGURE 2 L BWR OWNERS GROUP STEAM PIPING CL 1O b l F

Page No. 10 Report No. 45711-01 DISCHARGE PRESSURE TRANSDUCER LVDT a s l I n SPRING TEMPERATURE m 26" 20" TEST SPECIMEN l l M i f A BODY TEMPERATURE g 6" DISCHAKGE T / 6X3 REDUCER 1 =f7 \\ STEAM INLET PRESS-JRE TRANSDUCER j { f r STEAM CHEST + \\ 1 FIGURE 3 INSTRUMENTAtl0N LOC /.T I ON t.

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Page No. 12 Report No. 45711-01 'l o l r e b mg ~ -~.g.-=. PHOTOGRAPH 2 TEST VALVE DURING FULL FLOW l l

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I, PAGE NO. ~15 "l TEST REPORT NO. 45711-01 J II i e, 6 ' i1 APPENDIX ll TABULATED TEST DATA AND X-Y PLOTS

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