ML20216B817

Rev 0 to PE-9778-1, Test Rept-Grinnell Hydraulic Snubber Freedom of Motion Test Under Duke Powers McGuire Nuclear Station MSLB Accident Temp Condition

ML20216B817
Person / Time
Site:	Mcguire, McGuire
Issue date:	08/25/1997
From:	AFFILIATION NOT ASSIGNED
To:
Shared Package
ML20216B822	List: ML20216B817 ML20217R366
References
PE-9778-1, PE-9778-1-R, PE-9778-1-R00, NUDOCS 9709080155
Download: ML20216B817 (4)

Text

. Al0-28-97 THU 0316 Pli GRINNELLCORPORAT10E rax th Aut eso suiu r. uNr PREP.BY g R N O. PE-9778-1 GRINN ELL CORPORATION APP.

PAGE 1 OF 4 O

REV.

DATE 8-25-97 QAg/

l#

TITLE: TEST REPORT GRINNEl.L HYDRAUUC SNUBBER FR MOTION TEST UNDER DUKE POWERS MCGUIRE NUCl. EAR STATION MSLB ACCIDENTTEMPERATURE CONDITION.

1. PURPOSE This test report evnlantes thefreedom of motion of Grinnell hydraulic snitbbers during Duke Power Company - McGulrc Station's MSLB ntcident (cmperntarc condition. This testing was performed under Grinnell shop order No. 4128923 in accordance with the requirements of Duke Power Company P.O. No. MN31233, Rev.1 "QA Condition 1".

1

2. T_f5T SPECIMENS Two (2) Grinnell figure 200 N hydraulic smtbbers were supplied by Duke Power Company. Both Werc 1 1/2" bore with 5" strokes and contained polycarbonate reservolts. The serial numbers were 20598 and 20725. Both smtbbers were manufactured in 1978 and subsequently reballt by Duke Power Company using Grinnell supplied seals, fluid and procedurcs.

3. TEST REOUIREMENTS 3.1. Snttbber setting at midstroke 3.2. Snnbber reservoirftlled to > 50% capacity 3.3. Inlllal5nubber temperature 120' F in moisture environment 3.4. Quickly increase air temperature to 350'F 3.5. Hold temperature at 350'Ffor 10 minutes 3.6. Performfreedom of motion test by hand on snubber tofnis extension andfull retraction 9709080155 97oggg DR ADOCK 05000369

. . . . . . . . . . .. ....m- . . . . - . ... - .. ... ... . . _ ._

. AUG-28-97 THU 03:17 Pil GRINNELt. CORPORATION FAX NO. 401 666 3010 y, ugfuf PREP.BY NO. PE-9778-1 GRINN ELL CORPORATION PAGE 2 OF 4 REV. O DATE 8-75-97 TITLE: TEST REPORT-GRINNEll. HYDPAUUC SNUBBER FREEDOM OF MOTION TEST UNDER DUKE POWERS MCGUIRE NUCLEAR STATION MSLB ACCIDENT TEMPERATURE CONDITION.

4. TEST EQUlPM EN_l 550' F oven- Grinnell No. GC 0361 l 550' F oven- Grinnell No. GP 1054 l Thermocouplc Dl0 ltalThermometer Grinnell No, GC 0005 calibrated August l

13,1997.

(3) Type K OMEGA T hermocottples

5. TEST SEQUENCE 5.1 Installed (1) thermocottple on cach rod bushht0 5.2 Verifted both sntthbers set at midstroke 5.3 Verifted both sanbber reservoirs to be approximately 3/4fttll 5.4 Removed reservoir vent pitu3s 5.5 Placed both sunbbers in a 120' F moist oven and left overnite to stabilize 5.6 Serial number 20725 5.6.1 Mcasttrcit rod bitshing temperatttre of126.0"F 5.6.2 Rapidly trangferred to adjacent oven which had been preheated to 360'F 5.6.3 Monitored oven alt temperatare by means of a thermoccuplc 5.6.4 When oven rtir temperatttre retttrned to 350'F the ten (10) minate testWas started 5.6.5 Every thirty (30) seconds the oven air and rect bashin0 temperatures Were mensttrett. The air temperature rangedfrom 350 to 355' F nnd the rod bashing reached a maximttm of 226' F.

5.6.6 At the enct of the ten (10) minutes. the oven was opened and the snitbber Was immediately hand strokett Whlte still in the oven to thefully extended anc( thcJttlly retracted positions two (2) times.

% .>- ,, ... .. .s .. . . . _ . , . _ . . . _ , , , , , ,,

s. .. % 3. .

_-- ~

nw- & ur niu usu , en unmnm warunnnua rna nu. u. ovo so.. r. oe u, PREP.BY NO. PE-97781 GRINN ELL CORPORATION PAGE 3OF4 REV. O DATE 8-25 97 TITLE: TEST REPORT-GRINNELL HYDRAULIC SNUBBER FREEDOM OF MOTION TEST UNDER DUKE POWERS MCGUIRE NUCLEAR STATION MSI.B ACCIDENTTEMPERATURE CONDITION.

5.7 Scrint Nt4ntber 20598 5.7.1 Mcasttred rod bitshin0 temperature of122.9'F 5.7.2 Rapittly transferred to adjacent oven which hcut been prehented -

to 355'F 5.7.3 Monitored oven air temperature by means of a thermoccuptc.

5.7.4 When oven air tentpcrnture relltrned to 350'F the tett (10) minute test was started 5.7.5 Every thirty (30) seconds the oven air anst rod bitshing temperatures were measured. The air temperntitre ran0cdfrom 350 to as6* F ruut the rod busking rear.ited a maximitm of 224' F 5.7.6 At the end of the ten (10) minutes, the oven was opened nnd the sunbber was immediately hand stroked while still in the oven to thefully extended and thefally retracted positions two (2) times.

6. T._EST RESULTS No restriction of motion was encottntered with eith er snnbber,

7. ANALYTlCAL RESULTS An analysis was performed on 1 1/2 to 6" bore Gr.miell hydraallt snitbber cylinders. The efects of eqttllibrium temperatures up to 350'F on the slidin0 components of the cylinders Werc evalttated. Of ttg worst case tolerances, materials and material properties; no interfer:.nce resulted. This analysis is onftlefor revicW at Grinnell Corporation.

c~ -4 ' . . am . A..- . . . . ~ ,A.,, .c p , g4 , , a.4 - , . .

% . Am 4. 4 . . - . .- 4 .

. aus-ze-st m u 03:18 en oxinsat uuxeuxanus m nu. aui een ouiu r. u3,u, PREP.BY GRINN ELL CORPORATION N O. PE-9778-1 PAGE 4 OF 4 REV. O DATF R-7 5-47 TITLE: TEST REPORT-GRINNELL HYDPAULIC SNUBBER FREEDOM OF MOTION TEST UNDER DUKE POWERS MCGUlRE NUCLEAR STATION MSLB ACCIDENTTEMPERATURE CONDITION.

8. CONCLllSIONS Tlte Grlitncilltydrattlic snitbbets allowed titermal movement ditring post ,

MSL.B accident condillottsfor Ditke Po Ner's McGirlre Nt(clear Station, Based on tlic analytical restttts, sizes 1 1/2 to 6" bore cylinders Will allow titis titermal Movement.

.- * . . . . . .. . .... .... ......... .m.... ._ ... , ,

e -em

_U