ML20133E437

Trip Rept of 961016-17 Visit to Southport,Nc to Observe Testing Downcomer Strainer by Brunswick on 961017

ML20133E437
Person / Time
Site:	Brunswick
Issue date:	11/05/1996
From:	Berlinger C, Marshall M NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
To:	Cherny F NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
References
NUDOCS 9701130038
Download: ML20133E437 (20)

Text

__. _ _ __ _

November 5, W r ,

(?< 'c/ l!lgjff, I

l 50- 325,N'E$

1 MEMORANDUM TO: Frank Chemy, Chief (Acting) i Generic Safety Issues Branch '

Division of Engineering rechnology Office of Nuclear Regulatoiy Research Carl H. Berlinger, Chief Containment Systems and Severe Accident Branch Division of Systems Safety and Analysis l Office of Nuclear Reactor Regulation FROM: Michael L. Marshall, Jr., Task Manager /s/MLMarshall Generic Safety issues Branch ,

Division of Engineering Technology Office of Nuclear Regulatory Research

SUBJECT:

TRIP REPORT OCTOBER 16 THROUGH 17,1996: ,

OBSERVATION OF DOWNCOMER STRAINER TESTING AT l BRUNSWICK I traveled to Southport, NC to observe the testing a downcomer strainer by Brunswick on  ;

Thursday, October 17,1996. During the day, I had substantive conversations with Mr. Gary  !

Anthony, Mr. Jim Kinsey, Mr. John Goelz, and Mr. Richard Tripp. The purposes of the test l program are (1) to determine the feasibility of installing strainers in the entrance of the downcomers to prevent debris from entering the suppression pool and (2) to evaluate strainer )

mesh combinations. A copy of the general test description and procedures are included in '

Attachment 1. This test program is being conducted in collaboration with EPRt.

The strainer being evaluated is a commercially  :  ;

available (see Att. 2 and Fig.1)" dixie cup" or l l

" witch's hat" strainer that has been modified. In l l order to improve the ability of the strainer to retain debris one or more layers of mesh screen i' N' , _ . ,

l l

has been attached to the inside of the strainer. s l ,; l l The number and size of the mesh screens are [;_i_a1,__j _

being varied during the test to determine the ___ s x e uesh - --

optimum configuration frcm a debris retention and head loss prospective.

EZ Z..

Perforated Plate -_

Figure 1: sample Mesh Arrangement The downcomer strainer, being evaluated by Brunswick, would be installed at the entra'ce of the downcomer (see Pg.14 of Att.1). The Test facility is a full-scale mock-up of a section of the Brunswick vent header, downcomer, and suppression pool configuration (see Pg.13 of Att.1). Photographs of the facility are available in my office for review.

9701130038 961105 9 PDR ADOCK 05000324

/

13000 )f[I '

, . . .s i

I Messrs. 2-l There are two distinct aspects to the test program. One aspect of the test is to evaluate the performance of the downcomer strainer during the blowdown phase of a LOCA and the second aspect of the test is to evaluate the performance of the downcomer strainer during the long-term recirculation phase of a LOCA. The blowdown phase of the testing is based on a postulated main steam line break. The basis for the air mass flowrate, the water flowrate, quantity of fibrous debris (NUKON insulation), quantity (concentratiuon) of corresion poroducts, quanitity of paint chips (unquilified), and the quanity and variety of other debris used in the test seems reasonable. Some of the values also seem to be conservative.

Brunswick plan to continuing testing up to two weeks following my visit. Because of the nature of the tests, the test matrix is changed or expanded based on test results. In addtion to evaluationing the performace of a downcomer strainer, the Brunswick staff is evaluating the amount of debris generated during a LOCA. Currently the Brunswick effort is in thier " test

• phase, if the effort moves into thier " design

• phase, they plan to analysis the ability of downcomer strainer to resist LOCA loads and loads imposed by strainer on containment (vent l header. The design phase may be completed by February 1997. During the design of the downcomer strainer the Brunswick staff will consider the potential of the strainer to contribute to the overprecsurization of the containment and the potential of the strainer to prevent water from reaching suppression pool.

During my visit, the Brunswick staff inquired about the NRC's postion regarding the submittal of fixes prior to installation. After consultating with Mr. Robert Elliott, NRR, via telephone, I told

( the Brunswick staff that the NRC expected the plans for all fixes to be submitted to the NRC prior to installation in the plant, and the NRC would prepare a safety evaluation report for each I submittal. If a plant chooses to install a fix without prior NRC review it is at thier own finicial and regulatory risk.

Discussion in addition to evaluating downcomer strainers, the Brunswick staff is also evaluating the installation of larger (alternate design) suppression pool strainers as a possible solution to the BWR suction strainer debris blockage issue.

The downcomer strainer being developed by the Brunswick plant is an innovative and promising

" potential

• solution to the BWR suction strainer debris blockage issue. According to the Project System Engineer responsible for the testing of the downcomer strainer, over 2000 ft2 of strainer area could be added. The downcomer strainer fix being pursued by Brunswick appears to satisfy the guidance in Regulatory Guide 1.82, Rev. 2 and NRC Bulletin 96-03. The downcomer strainer is not one of the options listed in NRC Bulletin 96-03, however the bulletin does allow licensees to pursue other options (i.e., solutions).

After discussion the Brunswick downcomer strainer testing with NRC staff and NRC contractors, cognizant of the BWR suction strainer debris blockage issue and potential solutions, on October 18,1996, the following concems/ questions were expressed:

1. How many downcomers could occur without invalidating current containment analysis?

3 .. ..

l l

Messrs. 3-

2. Can the vent header support water accumulation caused by debris accumulation in downcomer strainers?

3. In past water tests there was a strong correlation between velocity and head loss. How j will the higher velocity that would occur with steam at the same mass flow of air be

! considered?

Attachments: as noted

cc: L. Shao, RES l X. Shaukat, RES A. Serkiz, RES R. Elliott, NRR ,

D.Rao, SEA DISTRIBUTION:

CENTRAL FILE GSIB c/f LCS r/f J

IMENT NAME:

19.sceive a copy of this document, Indicate in the box: "C" = Copy without enclosures "E" = Copy with enclosures "N" = No copy 0FFICE DET/GSIB 6 NAME MMarshall:jf DATE ID/'l /96 #6 ,10/ /96 10/ /96 10/ /96 10/ /96 0FFICIAL RECORD COPY (RES File Code) RES 2D-3 1

i

l ,

A%bkoi 4- [

l' coat

- CAROLINA POWER & LIGHT COMPANY J_. use PLANT OPERATING MANUAL VOLUME XC SPECIAL PROCEDURE UNIT 0 -

B N P RECIPIENT ID E-Wh 00NTROLLED OSP-96-005 INSULATION HEAD LOSS TESTS USING AIR AND WATER RECEIVED BY BNP REVISION 1 EFFECTIVE DATE Md//5/76 NUCLBR D0 CUM CWROL w

Sponsor /k ~

~~

/d//P/ft Cf ry M./ Anthony Date Approval .

IDIN5%

I,ESS Superintbndent " Date NOTE: This S'pecial Procedure will become void and require reapproval one year after the effective date.

OSP-96-005 Rev.1 Page 1 of 18

, REVISION

SUMMARY

Revision 1 corrected minor testing valve lineups.

LIST OF EFFECTIVE PAGES l

l Page(s) Revision 1-2 1 l i

3-4 0 5-10 1 11-18 0 l

l l

l l

I l . 1 OSP-96 005 Rev.1 Page 2 of 18 1

1

l -

i TABLE OF CONTENTS i

SECTION PAGE l

1.0 INTRODUCTION

AND PURPOSE ........................... 4 l 2.0 SCOPE............................................. 4 l

3.0 REFERENCES

.......................'................. 4 4.0 PREREQUISITES ..................... ................ 5 5.0 SPECIAL TOOLS AND TEST FACILITY . . . . . . . . . . . . . . . . . . . . . . . 5 6.0 PRECAUTIONS AND LIMITATIONS ......................... 6 7.0 GENERAL TEST DESCRIPTION .........................I.. 6 8.0 DATA ANALYSIS ............. ...................... 7 9.0 TE STING IN STRUCTIO N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9.1 Air Tests ........................................ 8 9.2 Water Tests ..................... ................ 9 ATTACHMENTS 1 Control Volume Diagram for the Test Setup ................... 11 2 Schematic of Test Facility . . . . . . . . . . . . . . . . .. .... ....... 12 3 Te s t C h a m b e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4 P&lD for Strainer Testing ................................ 14 5 Reference Test Data ................................... 15 1

1 6 Air Test Data (Dry Nukon) ............................... 16 l l

7 Water Test Data (GPM) ................................. 17 8 Test Data Sheet ...................................... 18 l

l 1

l' OSP-96-005 Rev.O Page 3 of 18

.- _- --. ~ _ - - _ _ . - . - - - -- - . -.

. i

1.0 INTRODUCTION

AND PURPOSE

' To prevent fibrous or metallic insulation from entering the suppression pool

)

' in the event of a loss of coolant accident, it may be possible to place strainers across the downcomers or main vents. With the strainers in place, f

insulation would be trapped before it c'ould enter the pool. However, the insulation trapped on the strainers will create a pressure drop across the strainers. This test will collect appropriate data from air and water tests under various conditions. This data will be used to determine the pressure drop across the strainer insulation. The air tests will be used to simulate steam flow through the insulation and strainers. The water tests will be used to simulate the flow of water through the strainers. The output data will be used to determine the pressure drop across the strainer and insulation as a function of mass flow rate and insulation thickness. The air test results will also be used to predict the pressure drop expected across the strainer and insulation if the medium was steam. .This information will be -

documented in a report on the test as required to support the study phase of project FAIM No. A0002831. .

2.0 SCOPE 1 2.1 This test is to determine the loading on the strainers and pressure drop across the strainers using air and/or water.

2.2 This testing is to be done outside the Power Block; therefore, there are no equipment interactions with the units other than the use of Compressed Air and/or Water.

3.0 REFERENCES

3.1 C.D.I. Technical Memorandum No. 9413 3.2 ESR 94-00503 3.3 DWG No. SK-MISC-C-TORUS 3.4 Project No.13671 A 3.5 FAIM No. Study Phase A0002831 3.6 WR/JO No. 96-AAQJ1 3.7 CP&L Safety Manual 3.8 CWO No.96-054 & R1 OSP-96-005 Rev.O Page 4 of 18

. c

ERENCES F' 0-17 and OPLP-24 ducer i I l C.u.l. 529 94A812X Insulation Transport Through Downcomers/ Vents cers will 1

ints the Wetwell - ibration  !

r. The i I

! REQUISITES lata is of full l This procedure can be used to perform the test as directed and l scheduled by the Project Engineer and as approved by the Work Control Ccnt:r (WCC).

The t:mporarily installed equipment shall be inspected by the Project e Truck Engineer prior to each series of tests.

The Project Engineer shall be present for all tests. _ ,,

Tha WCC shall approve the use of Permanent Plant Service Air or Water

, and/or prior to each series of tests.

The test equipment shall be calibrated / checked prior to each day's use )

g in thIse tests. I be I a Truck or equalis available for use during the Water Tests. it.

,) .  ;

PECIAL TOOLS AND TEST FACILITY 1

)sig ha t:st facility is shown schematically in Attachment 2. There are two air than tercg3 tanks with a totalinternal volume of 1320 gallons. A fitting on the I be ank is provided to connect an air compressor to pressurize the vessel. The in the ank cutlet is through three inch pipe connected to a four inch ball valve on na ttst chamber. The ball valve is connected to the test chamber, shown ch:matically in Attachment 3 and 4. The test chamber (Attachment 3) is

enstructed from a 54 inch section of pipe with a 24-inch downcomer leg 8-v:lded on one side. Air enters the test chamber through a manifold at the ep cnd exits through a strainer at the bottom. The strainer material covers he cntire diameter of the 24-inch pipe. The strainer is constructed from 14

}:ugo steel with 1/8" holes on 3/16" staggered centers, and is covered with ifed i m:sh wire. . the

(

(1)

Rev.1 Page 5 of 18 96-005 18

. . l l

7.0 l GENERAL TEST DESCRIPTION i

The first step in running a test is to add the desired amount of insulation to  !

the test chamber. The test chamber is opened at the top valve (V2) or door to add the insulation. After the insulation is added, the chamber is closed.

The test chamber inlet ball valves are closed and the air compressor is then i connected to the supply tank until the initial pressure is reached. Typically, I a pressure of 125 psig is used. Then the compressor is isolated from the supply tank. Finally, the data acquisition system is started and the test l chamber inlet ball valves are opened. Data is recorded until air flow through the test chamber stops or is stopped. Several different initial conditions are to be tested as per Attachments 5 to 7. The Test Data Sheet i i

(Attachment 8) is to provide for consistency and quality documentation. I The case with zero inches of insulation measures the effect of the straine alone. The test chamber is tested without the strainers to establish basel data.

Water tests are performed in a recirculation mode with water from a Fire Truck provided by LPU or from a pump. Water flow rate is measured by a Controlotron flow meter and/or the Head Curves. Tank fillis measured by submergence as x inches and recorded on the Test Data Sheet (Attachment 8).

8.0 DATA ANALYSIS The diagram in Attachment I shows the test setup represented by three control volumes. Control volume 1 is the storage tanks, control volume 2 is the three-inch piping connecting the storage tank to the test chamber, and control volume three is the test chamber. The initial pressure (Pso) and temperature (Ti o) of the storage tanks are measured. From these measurements the initial density can be determined, assuming air is an ideal gas (the equations below use the absolute pressure and temperature in Rankine).

pio = P o/(RT i io)

(2)

The mass flow rate (mi) can be determined from mi = V, dp/dt i

(3) where pi si determined from the isentropic relation Pi = #to(P io/P ly i

(4)

OSP-96-005 Rev.1 Page 7 of 18

i 9.1 Air Tests i

9.1.7 OPEN Air Receiver inlet Valves, SP-005 V1 A/B, and PRESSURIZE the Air Receiver to opproximately 125 psig.

4 9.1.8 OPEN Valves SP-005-V15.and SP-005-V16.

9.1.9 CLOSE Air Receiver inlet Valves, SP-005-V1 A/B.

J J

9.1.10 RECOND the following on the Test Data Sheet (Attachment 8).

Run Number i

Air Receiver Tank Pressure Insulation Weight & Debris Date/ Time Data Acquisition System Settings

~

Calibration Information (as needed) l 9.1.11 START the data acquisition system.

4 9.1.12 OPEN Test Chamber Air inlet Valves, SP-005 V8, V9, V14, V15, i

and V16, as needed, for each type of test, j

9.1.13 When air flow to the test chamber is stopped, STOP the data acquisition system.

9.1.14 CLOSE Test Chamber Air inlet Valves, SP-005-V8, SP-005-V9, SP-005 V15, and SP-005-V16.

l 9.1.15 VENT the test chamber through Test Chamber Hatch and/or Test Chamber Fill Valve, SP-005-V2. If entering, open hatch and test l I

air quality, as required.

9.1.16 Repeat Steps 9.1.1 through 9.1.15 for each set of desired test

, conditions.

9.2 Water Tests l

9.2.1 ENSURE that the hoses are attached to the Fire Truck or pump i and to the Test Assembly as per LPU and Project Engineer directions to support recirculation of water through the Test 4

Chamber and Tank. Air test lines shall be isolated. l i

9.2.2 ENSURE hatch and SP 005 V3 (Drain Valve) are closed, i

OSP-96-005 Rev.1 Page 9 of 18 I

l . .

9.2 Water Tests

) 9.2.3 ENSURE Test Chamber Debris Fill isolation Valve, SP-OO5-V2, or i l test chamber hatch is open.

l l 9.2.4 ADD the desired amount of insulation or debris to the test

, chamber.

i 9.2.5 If desired, CLOSE Test Chamber Debris Fall Isolation Valve, SP-005 V2 and test chamber hatch.

j 9.2.6 RECORD the following information on the data acquisition system chart:

l Run Number

! Strainer Size i insulation Weight and Debris- -

3 Date/ Time l Data Acquisitirn System Settings e

j Calibration Data (as needed) 9.2.7 ENSURE OF'EN Water Tank Suction Valve, SP-005 V4 or suction hose is in tank.

9.2.8 ENSURE OPEN Test Chamber Water inlet Valves, SP 005 V5 and SP-OO5-V6, as needed.

9.2.9 START the data acquisition system or take notes on the test.

9.2.10 if required, DIRECT LPU to place the Fire Truck system into a recirculation mode on the Test Assembly.

9.2.11 When Test Assembly conditions have stabilized, STOP the data l acquisition system. l i

I NOTE: If directed by the Project Engineer, Step 9.2.12 may be deferred until the conclusion of the series of water tests. This will allow for addition of insulation or debris while the system remains in I recirculation mode.

9.2.12 DIRECT LPU to secure the recirculation mode.

9.2.13 If required, OPEN Test Chamber Drain Valve, SP-005 V3 and V4, to drain water from the Test Chamber to the sample bag. ,

9.2.14 Repeat Steps 9.2.1 through 9.2.12 for each set of desired test conditions.

OSP 96-005 Rev.1 Page 10 of 18

. ATTACHMENT 1 Page 1 of 1 i

1 Control Volume Diagram for the Test Setup I

l l

l i i l Pjo l ______________

lT 1a

, 1 l

___________4 lP3 V3 !i i

i I lV3 i

m1 e 2 m24 l

___________s 3 $ m3 i

i  ; I i i i i i , i 24"___________i t__ PIPE

!_ _ _ _0 ga[.

__ ___________ l OSP-96-005 Rev.O Page 11 cf 18

+

i ATTACHMENT 2 Page 1 of 1 i i Schematic of Test Facility P

3 p 2

860 GAL. AIR hT GAL AIR 660 STORAGE TANK D STORAGE TANK FROM 00 COMPRESSOR V1A/B -

@ V8,V9 BALL VALVE TYP OF T

2

( ) WATER INLET TEST CHAMBER p BALL VALVE TYP OF 3 V5,V6  !

= s ="RiskoDS 'M

'?

=NiNSULATION

=

ai STRAINER P - Pressure T -Temperature l

t OSP 96 005 Rev.O Page 12 of 18

. . \

. i l

• ATTACHMENT 3 Page 1 of * )

Test Chamber i

SP tel V!

" m. e.-

C

\ ,_

. l w- ,e

. l l S.

'I l w

__.g._3 . _ _ . .

s_ _ . . ..__ ,.

} , ,

, 'i . .

_/

) '

} l s 1

. .. _. / $

se m.ri f *Y _ . , !,,.e -

( % ...!...

j V

(a p.sm h um im

=

s y, !T; m-

.. .. {... 4 l

}li$ll I

1 i l

}-

_ _q ,

,,..;.... l{:.4... .....}....,

ll kI h. M i

)

i i  ;

1 i

OSP-96 005 Rev.O Page 13 of 18

l .

1

• ATTACHMENT 4 l Page 1 of 1 l P&lD for Strainer Testing l

DEBRIS HOSE mPm C0fNECTIONS ,, SP 005-V2 l

n SP 00SV1A '

660 GAL.

AIR X ;iI ~Q ~ ~ [

SP405-V16 SP 005V9i RECEIVERS I 'i TYP. W SP 005 V1 i SP 005V8l

[I' SP><

SP 005 V14 Y T T2

,f 005 V71 TiLMw I --

SP-005-V13 SP405V15 1

6x-l' i CP 005-V6 CHAMBER SP 005 V1B SP405.V10

SP 005 V5l t

TEST STRAINER

,i SUPPLY SP 005 V1 l",7x*l eri i _e_ ,

SP 005 V3 {-

[

- k rtow l . . _."iv

-~4- g 7 g y_.

G ,

.I. f &

^ WATER = +j

[ FIRE TRUCK +

nTANKN

< -x NEMS V4 i ;: ww b

l l

l l

OSP-96 005 Rev.O Page 14 of 18

l . .

l

' ATTACHMENT 5 l Page 1 of 1 l Reference Test Data

! Reference Tests Test Strip No.

t . .

Al Tost Chamber No Water, No Strainer B) Test Chamber With Water, No Strainer C) Test Chamber With 150% Strainer No Water D) Test Chamber ~

With 150% Strainer With Water El Test Chamber With 300% Strainer No Water F) Test Chamber With 300% Strainer With Water Comments:

l 1

I l OSP-96 005 Rev.O Page 15 of 18

ATTACHMENT 6 Page 1 of 1 Air Test Data (Dry Nukon) l AP Strainer Size Nukon (Ibs.) Data Page # ' Norm Flow *High Flow 150 % 1/4 150 % 1/2 150 % 3/4 150 % 1 150 % 2 150 % 3 150 % 5 150 % 10 -

1 150 % 15 1

150 % 20 l 300 % 1/4 300 % 1/2 I 300 % 3/4 300 % 1 300 % 2 300 % 3 300 % 5 300 % 10 300 % 15 300 % 20 Notes:

' Normal flow is one air inlet valve open. High flow is with two air inlet valves open.

l l

OSP 96-005 Rev.O Page 16 of 18 l

l . .

I

• l l

' ' ATTACHMENT 7 Page 1 of 1 l

Water Test Data (GPM) l Strainer Size Nukon & Low

• Med ' High

• Debris (ibs.) -

150 % 1 150 % 5 150 % 10 150 % 15 150 % 20 150 % 25 150 % 30 150 % 35 -

300 % 1 300 % 5 1

300 % 10 300 % 15 300 % 20 300 % 25 300 % 30 300 % 35 l Notes:

1 I

l l

' Low flow is approximately 100 gpm Med flow is approximately 300 gpm l High flow is approximately 500+ gpm l

l t

l OSP 96-005 Rev.O Page 17 of 18

I l .

ATTACHMENT 8 Page 1 of 1 Test Data Sheet Test No. Data Strip Test Date Serial No.

Attachment No. l Strainer Size (%)

Test Medium: O Water O Air O Last Calibration l Gauge: Calibration Date: Due Date:

Last Calibration Gauge: Calibration Date: Due Date: '

Last Calibration I Gauge: Calibration Date: Due Date:

Last Calibration Gauge: Calibration Date: Due Date: -

Last Calibration Gauge: Calibration Date: Due Date:

Last Calibration

, Gauge: Calibration Date: Due Date: I Last Calibration I Gauge: Calibration Date: Due Date: I Last Calibration l Gauge: Calibration Date: Due Date:

Initials Air tank pressure is oetween 115 and 135 psig.

Project Engineer approval Set Pressure Test #1: psig Tank #1 Set Pressure Test #2: psig Tank #2 Set Pressure Test #3: psig Test Chamber Blowdown Time sec.

of Flow Time sec.

Initials Name (Print) Initials Name (Print)

Test Performed By:

Comments:

l OSP-96 005 Rev.O Page 18 of 18 l

l

p ,q .

M ' W 1E- 's3C .j M

e.d 7,188h76 0000057 .Wm ' K.-c,i. bg

• i.! PROG 5% 5 TRAINERS. Ih. . . .

p 3< w d yo 9

4 (  !: .

Start-Up Strainers

.y.- I'  !"q

.?:. . ' %l

, k ..

r.

.c.l.p%)R-:

" ~

" 2 i .

.,.. 9- 'l

% 2 LUCCE.$

}

. . i i l

s 3 -

STANDARD DESIGN . SPECIAL DESIGNS . STEEL . ALLOYS

.. .. . .: .c.. ..

( -.

g ~* "

!  :( . .

- 2 e e#

l i

"[

t 4..g 4

1..,q- .

. ,i -

BASKET STRAINERS i 1

l g .a.:, .

. . . , a g

l 't . Iv .

. - _s u. .

i 4 , .

. i _

, 'h < - -

4 > )

l t '

E .

". > 4 ;-

i Is . ..

, P-2 4

' ' s s ;

'.t '1~

. i WIRE Ct.OTH l ,( *.

i amt. .u. . .coms j- ,

g_.., l ~

"l":ll" a.r

• . C .a-

"ll-"

,,e

• ll*

-3

. , ... . l 1

e, , e, s, is I se a se s te- sw-

~

amo a ao Amer ARPF

) ._'..__......-.+

l ..j L=== str meer teo . seo caer ens-

, . ~ _ . . _ _

ASKET STRAINERS TYPE P.2 BASKET STRAINERS j h-Pff4PORATED BAS 1TT L38h3TH-MMOAATED SAseWT om '

art 1osent ou AsmA pure StFT / daar-J ( tamW asen ( ases ) D eszt seem seen asse sort o j h Y tu to ^2T * , e as as as. 64 la

9 t tw 3 ru a 1 es a et e4 to

tm 9 3 33 Pu . # la m St se

, to 22 j' g 95 ft

• f* 3 4 1 14 SB et M tes SS

, a to to su e em a . as se se tu as i

Fu 9 pu du e4 ft ' M e1 es tu les 41

'l .

a a.

a en a .se =

i 2 a

is

=

su tu se to iis u,

se

=

6 at su . 73 its an i a se im vei see es e e su e tru a e tar ses tas Ms See e a e et tr ** e in eos 273 es tu to e to u ttu es a ts2 ase ans les t?9 et Fu u seu nu e 12 set age 4 15 Den 3D

, 14 Fu t% tru rr es u tot sie se ese ass

' i le , e ... . seu PM 2tw e E rue aos are amo suo i er

j. to tem are ww it I w ser sur est err ass at t asm is ,

se es se tous me m tre

] f1A s, (ih n us srr for tsar ge_

1 i X- OF Y are of E se se4 eso sur toes ans sm == mi en en >< sm en = nas em em

. et M se W 94 N 42 MS EMI 1753 am ele de 49 St u et if7 24 80 ledi 3235 ese 90ER SNES Ammeo - es,m gg Amose : .m O

8 I

i(

e? o.o 7Frcmcess 0

_ -,--_C5crainers, - m Enc. . ~.

- . - ~ . , -

~ ~

5354 M

LT _

}

l . _

YE b .9I-M2 A W if2 1,.

i

! j-i .

Start-Up Strainers ii  :.4:

.t .

!.k . . .  : . .:3. . . . . i:,:~ $ . ...

: > 4 .

.t

!.4 -

. ,..% g .. -

. f.  :-! Z. . .uJcek.5  ;

i 4 . .

1 .,

STANDARD DES l j,I

. ECIAt, DESIGNS . S EL . AROYSf ggg .

{ ,

. p j *[ ' 4 - g 4 .. ') BASKET i V ' '

. . . - i STRAINERS

.y .

!, g

• s ,'

1 .. .

'i

.C .. v ..s.. ,-

" l

! 4 , . -

i l T

.[.

]

+ '

4 L' .

!! .- > 4-f h'

' ' I,' P-2 4 - i,,

}.

j i .

WIRE Cl.OTH r .. .

I _ . _ _ . . _

I =a 'll-4" *C' =

1

~

4 * . .

':l"C" *::::l*

l ... ... .

~

• ,~..*,l - .

w_

l l *

$ l ,j ' 30 30 At2* W *te u .00 Amet* Am."

ASKETSTRAINERS TYPE P-2 BASKET STRAINERS

- ~

osamma E .

se iosant ow amma pe's t T tu 15 Y~ m , t 35 as . 84 13 1 1 14 tu e t 33 si. ed te la 4 3 fu 35 . t

in . Si to se at tw it *9* a e t 9% . St 70 94f 98

! 2 15 Fu 16 3 .. 94 GD 15 85 n a n n.

. .S. 1. ' n .* . tu = c s e as em i a a m au .. nn e, e

4 s 44 0 94 tt 4 58 194 tet tot 70-

,, m .. ,,,

4 . .n . . - .

l e e a 11 it Sm o srr sus as ese sst j w e w $4 tiu en e t.: as4 ses ses tre j is in ta wu ase e ta ass an e. ama

. l. n m m n .. w .et. = -

I i. e __ .um en stu im e a we m i

to . me vr new are it I te ser ase sur err ses

. -rih rib en ""

Sh 1 m 1

m

.r

. f-

- l y 4 SS N E0 130 34 6 8. WI 1753 SM SID 4 e et etu er m 34 m on use see . sem ew Ams= - . mg Am si -

g

)l

.e'?m 0 Pratessi C 5Erainers Enc.

j si mm m . =

--mmi-mm-em _

./

j 5354 ' ' $

.. . -- -