ML19250C028
| ML19250C028 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 10/24/1979 |
| From: | Angle C DAIRYLAND POWER COOPERATIVE |
| To: | Zudans J Office of Nuclear Reactor Regulation |
| References | |
| LAC-6601, NUDOCS 7911060407 | |
| Download: ML19250C028 (6) | |
Text
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DAIRYLAND POWER COOPERATIVE Ba Grona, 0% nan
$4601 October 24, 1979 In reply, please refer to LAC-6601 DOCKET MO. 50-409 Mr. John Zudan Engineering Branch U. S. Nuclear Regulatory Commission Washi.sgton, D.
C.
20555
SUBJECT:
DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 TEST PROCEDURES - CONTAINMENT VENTILATION VALVES,
Dear Mr. Zudan:
Enclosed for your information is a copy of the test procedure for model testing of the Containment Ventilation Valves.
We anticipate tests will begin about October 31st and continue until approximately November 9th.
Our tentative plans are to witness tests Tuesday, November 6, and Wednesday, November 7th.
You or one of your NRC representatives are invited to witness the tests at that time if you desire.
We wil] contact you to confirm tentative schedule for these tests in the near future.
Very truly yours, DAIRYLAND POWER COOPERATIVE kW 0 C. W. Angle LACBWR Process Engineer CWA:af Enclosure cc:
J. Shea-NRC
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ALLIS-CHALMERS BOX M 93 e YO9K. PEN N SYLV ANI A 17405/717 848 1126 YOR A PLANT V ALVE DIVISION 10/18/79 6" Streamseal I - NASA Aero Flou Tests I.
Valve installation and testing.
A.
- 1 Valve Installation - Close Mounted to elbow -
(l" Dia. Shaft) 1.
Install butterfly valve #1, with disc facing upstream (flat side towards elbow), and shaft in plane of elbow.
2.
Connect electric motor of operator to power acurce (460V/3@/60EZ) 3.
Connect strain gauge leads and potentiometer leads to strip recorder.
4.
Cycle valve open-close-open a few times to ensure proper operation.
5.
Valve is cycled to open position.
6.
Start strip recorder, & timer.
7.
Open V-Ball valve until discharge pressure approaches 60 psig on the upstream x-ducer of the butterfly valve.
8.
Cycle butterfly valve closed.
(5-6 sec.)
9.
Note that strain, rotation, upstream pressure and time interval are being recorded properly.
10.
Cycle valve to open position while recording
- data, 11.
Cycle valve twice more under the saine conditions.
12.
Return valve to open position.
13.
Vent until upstream pressure approaches 50 psig.
14.
Again, cycle valve, open-shut-open for three cycles and note data recorder.
4/pmm/0059 A L L I 3. C H A L M E R S CORPOMATION
15.
Continue cycle testing as above, reducing upstream pressure each time by 10 psi (60, 50, 40, 30 etc.) until the 10 psi test has been completed.
Close V-Ball and depressurize valve assy.
16.
After test phase has been completed, turn valve 90' so that shaft is out of plane at elbow.
Flat side of disc still upstream.
17.
Valve is cyclel to open position.
18.
Repeat steps 6 through 15, for 60 psig through 10 psig upstream pressure.
As above, each test is to be performed 3 times at each pressure setting.
19.
After completing tests above, remove valve and reinstall with flat side of disc downstream and shaft in plane with elbow.
20.
Repeat steps 6-15 for in plane testing of butterfly valve.
21.
Turn valve 90' and retest per step 18.
B.
- 1 Valve Installation - Remote Mounted.
1.
Bolt pipe extension to elbow flange.
2.
Install valve on pipe flange, disc flat facing upstream and secure with companion flange provided, mount with shaft in plane of elbow.
3.
Cycle valve to open position.
4.
Repeat steps 6-15 as above for remote mounted tests, disc upstream.
5.
Remove valve & reposition with disc in downstream (atmospheric) position.
Shaft in plane of elbow.
6.
Repeat steps 6-15 as above.
C.
- 2 Valve Installation - Close Mounted (5/8" shaft) 1.
Install butterfly valve #2, with dise facing upstream and shaft in plane of elbow.
2.
Repeat steps 2-15 as above for upstream disc and shaft-in-plane, except as noted below:
4/pmm/5424
}27}
$b
NOTE:
For reduced diameter shaft testing, maximum applied upstream pressure is to be determined from the results of testing valve #1.
If a pressure less than 60 psig is used for shaft stress reasons, strain should be monitored carefully and should not exceed 625 microstrain.
3.
Reposition valve with disc in upstream position and shaft 90* out of plane.
4.
Repeat steps 6-15 as above.
5.
Remove and reposition valve with disc in downstream position and shaft in plane of elbow.
6.
Repeat steps 6-15 ss above.
~
7.
Reposition valve with disc in downstream position and shaft 90* out of plane.
8.
Repeat steps 6-15 as above.
D.
- 2 Valve Installation - Remote Mounted.
1.
Refer to Section B above for the general mounting arrangement.
Valve is to be mounted with disc flat facing upstream and shaft in plane of elbow.
2.
Continue testing of Valve #2 as outlined in Section A steps 6-15, and Section C step 2 notes.
3.
Reposition valve #2 with disc flat facing downstream, shaft in plane of elbow.
4.
Repeat steps A6-15 and C 2 as above.
E.
- 3 Valve Installation - Close Mounted (1/2" shaft) 1.
Install valv'e'#3, with disc flat facing upstream and shaft in plane of elbow.
2.
Repeat steps 2-15 in Section A above, and Section C s*
2 notes.
3.
Continue testing valve #3 as valves #1 and
- 2 above.
4.
Valve #3 is to be tested in both close mounted and remote mounted configurations as. outlined in Section A-15, and Section B above, with the exceptions noted in Section C step 2 as performed with valve #2 reduced ditmeter shafting.
4/pmm/0064 j } }' j j66