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UNITED ST A TES DEPARTMENT OF THE INTERIOR

BUREAU OF RECLAMATION ~

WHEN BORRO\?'En n\r;:m '"T one, ____________________________ ,;_.;;;.,;i.J;;.....,l!~ ··_...,....,....., . ,~TLY

OPERATING CHARACTERISTICS OF VERTICAL

FLOWMETER STAND TURNOUT WITH

10-INCH PROPELLER METER

Hydraulic Laboratory Report No. Hyd-374

DIVISION OF ENGINEERING LABORATORIES

C J',lot :to b.e reQtOAUce:d o.L 'c!Jstributed tside :the .Bureau of Reclamati ,

COMMISSIONER'S OFFICE DENVER, COLORADO

Januaryl7, 1956

CONTENTS - , ·.·

Purpose • • • - • ,~-- 1,· · ·•' ·• .. • • • -. • • • .• ·• • , • • • 1

Conclusions • . • • • • • • • • • • •& •

Introduction • . . . . . ~ . . . ..... •· .

. . . . • • • . . ..

1

. 2

Acknowledgment. . .. - • . .. .. . . •· . .. . . . . . . • • ·• . ·. 3

The Investigation ·• · • • • -'• · .. • . .. ... . . . .. . . . . . ..... 3

Test Facilities . . . . . . . . . . . 3

Turnout with 8-.ii.nch Bellmouth V~lve, 12- by 12 .. by 10- . . inch Tee, and iO-inch Riser With_ Propeller Meter. • • 3

Turnout with J3-inch Bellm.outh Valv .. e., 12-inch., 3-pie.ce Miter Elbow, 12- by 10-inch Reducer and 10-inch Propeller Meter • • • • • • • • • • • • • • • • • • 4

Turnout with 8-inch Standard Waterworks Valve, 14-by 14- by 11-inch Tee, 12-inch Riser with 12- to 10-inch Reducer, and 10-inch Propeller Meter • • • •

Head Loss for Turnout with 10-inch Irrimeter • • • . . Effect of Silty Water and Registration Accuracy of

Propeller Meter • • • • • • • • • • • • • • • • • •

Vertical Flowmeter Stand--(Type L) Drawing No. 2i4-D-18168 ••••••••••• _ •••••••••• . .

Vertical Flowmeter Stand--(Type T) Drawing No. 214"".D-18169. . . . . • • . • . . • . . • . . . • . .• . • •

Vertical Flowmeter Stand--Labottatory Test Installation (Type T-1) • • • • • • • • • • • • • • • .• • • • • •

Meter Registration Accuracy- -Turnouts with Tee ('l') and Miter Bend (L) Risers • • • • • • • • • • • • • •

Pressure Head Loss Curves--Type T-1., T-2 and L-1 Turnouts • • • • • • • • • • • • • • • • • • • • • •

4

5

6

Figure

1

2

3

4

5

CONTENTS--Continued.

Figure

Vertical Flowmeter Stand- - Laboratory Test Installation - -Type T-2 and L-1 Turnouts. • • • • • . . • • • • • • 6

Vertical Flowmeter Stand--GV-7 Gate Valve and Sudden Enlargement . • • • • • • • • • • . . . . . .

Gradation of Material Used in Silting Test • • • • . . .. . . Silting Conditions for Vertical Shaft Propeller Meter

With and Without Holes in Hub. • • • • • • • • . . . . Silt Deposit in Front Bearing of Horizontal Sha-rt

Propeller Meter. • • • • • • • • • • • • . . . . . ., . Material Deposited in Back Bearing of 8-inch Main

Line !deter .- • • • • • • • • • • • ·• • • • • • • • •

ii

7

8

9

10

11

This r8po,t hcis be2n :JC'<IJc,r?ci fo, uss •11itl1in 'tiie Bureau of Reci,un:;tion, fsr th,, ,;dvice and infor­tnation of its design and construclion staff only. No part of this report shall be quoted or reproduced without the approval of the Chief Engineer; Bureau

UNITED ST ATBfS-Reclamation, Denver, Colorado

DEPARTMENT OJ;i' THE INTERIOR

BUREAU OF RECLAMATION

Commissioner1s Office, Denver · . Laboratory Report No. HYD-374 Division of Engineering Laboratories Written by: H. W. Price Hydraulic Laboratory Branch J. W. Ball Hydraulic Structures and Checked and

Equipment Section reviewed by: J. W., Ball Denver, Colorado Submitted by: H. M. Martin January 17, 1956 ·

Subject: Operating characteristics of vertical flowmeter stand turnout with 10-inch propeller meter

PURPOSE

The objectives of this investigation were to determine whether or not the throttling of valves under high heads would affect the accu­racy of propeller meters placed in vertical riser turnouts, to evaluate. the hydraulic losses for various turnout installations, and to study the ·· performance of a 10-inch propeller meter in silty water.

· CONCLUSIONS

1. The accuracy of a propeller meter will not be affected py the Type L turnout structure shown on Figure 1 when the controlling gate valve is throttled under differential heads up to 35 feet. The accu­racy will be good at differential :heads greater than 35 feet but the Type T structure should be ~sed because the L type may be damaged by cav­itation.

2. The accuracy of a propeller meter will not be affected by the Type T-2 turnout structure shown on Figure 2 when the controlling gate valve is throttled under heads up to 150 feet. No cavitation dam­age is expected on this type turnout at heads to 150 feet.

3. An 8-inch bellmouth control valve will have less ·loss than an 8-inch waterworks valve when both are operated wide open in turnouts with propeller meters, so the bellmouth valve or a larger size valve should be used where head losses must be kept to a minimum •.

4. The loss through the Sparling irrimeter can be decreased by raising the meter dome. If the dome is raised the meter propeller shaft should be lengthened to keep the propeller inside the pipe, oth­erwise the accuracy of the meter will be affected. The reduction in losses due to raising the dome 3/ 4 of an inch is shown on Figure 5A.

5o The loss chargeable to the irrimeter should be defined as the loss in excess of that for a vertical pipe with the exit at the same ele­vation as the top edge of the irrimeter tube. This loss can be deter­mined from the curves of Figure 5.

6 •.. The hub shaft housing recess of a Sparling irrimeter forms a settling and collecting basin for any silt contained in the flow, but the silt accumulation in the space between the propeUer hub and the propeller shaft housing will be practically eliminated when_ three holes are drilled through the hub wall into the hub shaft housing recess (Fig­ure 9A) •.

With the meter and dome at its initial height and a flow of 3 cfs, the loss chargeable to the meter would be o. 86 foot of water. . With the dome raised 3/ 4 of an inch the loss would be o. 65 foot {Fig­ure 5A).

INTRODUCTION

The Delano-Earlimart Irrigation District is an area of land served by the Friant-Kern Canal distribution system of the Central Valley Project. The district is located about 30 miles north of Bakers­field, Californil;l,. The district 1s distribution system is of the closed conduit type with valve controlled vertical riser flowmeter stands for turnouts (Figµres 1 and 2). Propeller meters in the risers measure and totalize the volume of water delivered to the land. The normal turnout flow is from 2 to 3 cfs.

Excessive heads at many of the turnout~ make it necessary to provide a means of dissipating the energy in the high velocity jets discharged by the valves before the water reaches the me.ters at the top of the riser pipes. At other turnouts very small available heads make it necessary to keep head losses to a .1ninimum to assure normal releases. For simplicity of design, construction and maintenance it is desirable to have a minimum number of designs that will fulfill the requirements of both the high head and the low head installations and, therefore, the structures must provide both good energy dissipation and a minimum loss in head while providing good metering accuracy at all flow conditions. Hydraulic tests were made in the laboratory on full size turnout structures to obtain turnout designs which would meet these requirements. In addition, the problem of preventing ac­cumulation of silt in the irrimeter propeller hub was included in the test program when it was found that the accuracy of meters in field structures was reduced and the meter parts became worn due to silt deposits.

The laboratory tests concerning the valve-controlled turn­outs with vertical risers and with propeller meters as the measuring devices are discussed in this report. The designs developed from the tests· are shown on Figures 1 and 2.

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.. ·· ACKNOWL~DGMENT ' .

These studies were accomplished through the cooperative efforts of members of the Canals Branch and the Hydraulic Labora­tory Branch of the Com.missi9ner1s Office,, Denver. ~he 10-inch prop,eller ll),eter usedfor th~ ,s.t,udies was_~<;>aned by the Ray G. Sparl­ing ,Compa,ny,, ,El M.g,nte,,. ;Ca\iforpia •. The ft-inch bellmouth gate valve was ~oaned by Watermc\n Industries, Incorporated, Exeter,. California.

THE INV~STIGATIO;N .

Test Facilities

. The':r:i:r.~t, ;t4r;n~4t d~s1gdt,estecl Gom;;isted of an 8-inchbell­mouth valve at,Jll.e.e.nd of a 12-:inch pipe., a 12- by 12- by 10-inch plas­tic tee att~fpeq to the yalve, a blank:. flange on the downstream end of the tee and ~-, 10-:incll.y~rtica,l plastic riser pip~ with a 10-inch Sparl-ing Irrimeter at the t_op:(Figur~. 3) •. Water was supplied to the t-imrnout by two 12,-,ipch,t:entrifu,gal,pl,lll)PS operat,ed in series ,to provide h~ads up t~ J50 Je~,t._ Y,olumetric.ally_.,c.~.U~rateci vepturi meters, in th.e labora­tory supply sy?tem were used to measure the flow qtJ.a~tities wbich var­ied from 0.13 to 4. 00 cfs. The test structure was altered from time to time tqreppesel)t othe,r,1tµr;µgut.d~sigµs. T\ws.e variations are discussed in approprj.ate sections of thls rep9rt. .

~ -- . . . '

Turnout with 8-inch Bellmouth.Valve., 12- by 12- by 10-inch Tee, and 10.;;inch :Riser with Propeller Meter

Flovy ,c;onditions within,the tee of this (Type T~l) turnout were quite turbulent_wh,en the valv.e was ,Piischarging at partial openings under high heads. The turbulen,ce d_ecrea~~d as the head was reduced and the valve opening increased. Flow conditipns in the riser seemed very uni­form. Accuracy tests on the 10-inch irrimeter indicated this to be so. The irrimeter_ registered about.JOO p~rc~nt 1;1.ccuracy for z._o 9fs under heads from,10 ~o 1a5 f~et,,,anctabput_l0Q.5; percent .,for.3.0 cfs over the same ran,ge pf:h.~~ds_ffig1,1:r;-e 41\) •.

. . Excessive noise due to pavitation oc~rnrred at partial valve . openin,gs at tpe highe;r heaqs., and at the end_ of the tests slight cavita­tion-:-ero.9iqil w_as noted pp tP.e invert ofJhe down~trea~_bel,l of th,e val~e and ~e>ttc:>IIl su_fface e>f the plastic1 tta~.- . The cavitation seemed to st.art with ~n upstrea,m head of about 45 feet.

Pre,sf:iure head losses, for various_ parts of the .turnout are shown on Figµre 5A,, .The p:,;-essu:r,es within the tee for full valve qpen­ing gradually increased from B, Jo D. _, The lower pres-~ure at B indi­cated the presence of.a contracp:on immediately pelow the valve and the higher pressure. at D indicated aJ:iuildu:g. of ,pressure at the closed end of the tee. ·· Losses for the valve are _approximated by the drop in_

3

T

pressure from A to C, and the loss for the riser by the p:ressure drop from C to F, minus the difference in velocity heads in the 10- and 12-inch pipe sect'ions.

This turnout was satisfactory insofar as the accuracy of the propeller meter was concerned, but protection a~ainst cavitation is . . needed if the structure is used under high peads. · Moreover, the. lo~ses were believed to be high compared to those for an L-shaped turnout~ Further studies were therefore made.

Turnout with 8-inch Bellmouth Valve; 12-inch, 3-pi~ce, Miter Elbow, 12- to 10"".inch Reducer and 10-inch Propeller Meter

A 12-inch,. 3-piece, lightweight mitered elbow was placed im­mediately downstream .of the 8-inch bellmouth valve (Figure sa). A short section of 12-inch plastic pipe, an 8-inch long reducer from 12-to 10-inch pipe, a short 10-inch riser, and a 10-in~h propeller meter completed the (Type L-1) turnout. The sm~ller head loss Qf this de­sign, as compared with the tee design, makes it more i;uitable for use where conservation of head is important and the valve must be fully opened (Figure 5B). In this case the heads would be low and there would be no danger of cavitation. ·

'•!:

Tests at various heads and valve openings showed that the ac­curacy of the propeller meter was good and that the head loss for the elbow turnout was less than; for the tee (Figures 4A and 5B), The de­sign is therefore desirable for installations where cons~rvation of head is important.

Cavitation was observed immediately downstream of the valve when the turnout valve was throttled under high heads ;jlnd this charac­teristic made the design unsuitable for these heads. A test was made to determine the head at which cavitation would begin. For the range of flow from 1 to 3 cfs a total head of 43. 5 feet was· required on the partially open valve to produce incipient cavitation. In this case· the top of the turnout riser was 8.16 feet above the centerline of the valve, the vapor pressure was 27 feet· of water below atmospheric pressure and the differential head across the turnout was about 35 feet. · This turnout design was therefore considerecl satisfactory for flows up to about 4 cfs under differential heads up to 35 feet.

Turnout with 8-inch Standard Waterworks Valv~, 14- by l4- by 11-inch Tee., 12-inch Riser with 1~- to 10-inch Reducer and 10-tnch Propeller Meter

. It was believed that a sudden enlargement imll)ediately be­low the valve would remove the boundary surfaces from the zone of cavitation and do much to reduce the cavitation tendencies and thus prevent cavitation damage to the turnout. A 14~ by 14- t:>y 11-inch tee was made up by attaching an 11-inch diameter riser pipe 1-1/2 inches long to a short section of 16-inch pipe which was fitted at each

4

end with 14-inch inside diameter flanges (Figure 6A). The 16-inch pipe was lined with a 1-inch-thick layer of sand-cement concrete to form a 14- by 14- by 11-inch tee with easily erosible surfaces. The downstream end of the tee was closed with a blank.flange coated with sand-cement mortar. A section of 12-inch concrete pipe was grouted over the 11-inch riser and the 10-inch propeller meter transite pipe section was grouted into the end -of the 12-inch pipe. The grout was shaped to form a reducing transition from the 12-inch pipe to the 10-inch transite pipe and this completed the Type T-2 turnout (Figure 5C).

This design was operated at various valve openings at heads up to 150 feet with back pressures of about 15 feet. A definite decrease in the cavitation tendency over the other designs was noted. After tests of 3 hours d1,1ration at discharges of 2, 3, and 4 cfs at ·partial valve openings under differential heads of 150, 150, and 118 feet, a total. of 9 hours operation, there was no cavitation damage to any portion of the valve or concrete surface within the tee section, although some noise similar to that which accompanies cavitation was present at heads in excess of about 90 feet. Incipient cavitation occurred at the same 90-foot head for a wide range of discharges and valve openings. The top of the .transite pipe section of the turnout meter was 10. 85 feet above the centerline of ·the valve. Although the meter registration accuracy was somewhat erratic, the variation was small and did no.t change with valve opening. Since this characteristic was present re­gardless of head and opening, it was not attributed to the turnout de­sign but to some unknown cause. The pressure head losses for this turnout were slightly less than for the 12- by 12- by 10-inch tee used in the first tests (Figure 5C). A turnout of this design would be used where differential heads in excess of 35 feet are encountered. The tee section of such a design would not be lined with concrete, as was·done in the test structure, but sufficient surface protection should be pro­vided to minimize corrosion. It is believed that this design woulti be satisfactory under heads as high as 150 feet unless vibration from cav­itation proved objectionable. Vibration of the test structure at this head was considered to be mild.

A valve design developed by the Bureau is best for high heads. The downstream passage, particularly the invert, is shaped to cause separation of flow and prevent. cavit.a.tion damage to the valve. This valve, with a sudden. enlargement placed downstream as shown on Fig­ure 7, will be very effective in preventing cavitation damage for valves operating at small openings under high heads.

Head Loss for Turnout with 10-inch Irrimeter

When reports from the field indicated that valve-controlled vertical riser turnouts in which Sparling irrimeters were being used to measure the flow were not delivering the required amount of water, a study was made to determine the head loss for various parts of the turnout flow passage to ascertain if the losses could be reduced. It

5

seemed that losses through the valve section could not be altered appre­ciably except by increasing the valve size to that of the pipe, that the losses in the turnout below the valve would depend on the water passage shape in this region (whether T- or L-shaped), and that some reduction in the meter head loss might be realized by alteration of the meter.

Hydraulic tests using tee and ell sections below the valve indi­cated a much smaller head loss in the 3-pi~ce miter elbow than in the tee (Figure 5). However, the field turnouts with inadequate capacity were of the miter elbow design and in many cases contained a valve the size of the delivery pipe, so it 'was necessary to investigate other parts of the structure for possible reduction in losses. Since very little could be accomplished by further streamlining of the turnout flow passage downstream of the valve, the possibility of altering the meter to reduce its head loss and permit release of the required flow was investigated. In this investigation it was necessary to isolate the meter loss from other losses in the turnout, determine its source and make alterations which would reduc·e it.· The loss for the meter, based on pressures measured at piezometers placed 16 and 28 inches from the end of the transite meter tube, was determined (Figure 5). The meter propeller and deflector dome was then removed and the loss (based on the pie­zometer 16 inches from the end of the transite tube) was determined for the open end vertical pipe (Fi~ure 5). New dome brackets were made to raise the deflector dome 3/4 of an inch. This distance was selected because it was the maximum the dome could be raised and still keep the prop.eller of the test meter within the transite meter tube. The loss for 3 cfs was reduced by about o. 25 of a foot (Figure 5A). It ~~s still ques-tionable whether this reduction in loss would permit full capacity re- . leases from the field ·turnouts. However, the manufacturing company decided to raise the meter domes·l-1/2 inches and alter the dome slightly so that the water would still be deflected-downward around the turnout. riser pipe. T.his change ·permitted the turnouts to deliver water at full capac~ty.

Effect of Silty Water and .Registration Accuracy of Propeller Meter

Observation at some of the field installations using the Sparl­ing irrimeter disclosed that silt in the turnout flow accumulated in the shaft -.housing recess in the back of the propeller and entered the bear­ing where it caused wear and binding that affected the meter ·registra- · tion accuracy. Holes had been· drilled through the propeller hubs into the recess of some field meters to permit circulation of water through the recess and prevent the accumulation. Since it was difficult to evalr uate the effectiveness of this treatment in the field where the amount of silt in the water was relatively small,, laboratory tests were conducted on meter propellers with and without holes in the hub, using water with a high silt content(average 5,000 parts per million). The composition of the silt was similar to that found in the Friant-Kern Canal distribu­tion system (Figure 8).

In less than 2 hours operation enough silt had collected in the undrilled propeller hub to permit particles to enter the bearing and to

6

.

bind:the-hub and ... bearing,:suffici"ently to c-ause · a· decrease ;in regi;Stra .. tion accuracy (FigureAB).{ · · , -.. , ,, . ·

. ': (~-- .. ·.J ';· ! '.:• _·1_; _·, ·;Jj_ ;.;

.. • .. A: total :.of 2-2 grp.ms ·.(dcy weight} of. silt was collected in the propelJ!-eF,hub and ~haft 11,ousing· after 5 acre-feet of water had,-been ·· released through-the.: turnout (F·igure·9B)..

Tests with three holes drilled in the hub., using the same silt concentration, flow rate, and test period, failed to show any accumula­tion of silt in the hub or bearing (Figure 9A). No change in meter reg­istration accuracy was noted after 5 acre-feet of silty water passed through the turnout. ·

Two propellers with holes drilled differently were tested. In one the heles were perpendicular to the axis of the propeller, and in the other the holes were pointed 45 degrees into the flow. No difference . in silting conditions was detected. However., it is believed better to have the holes pointed into the flow while the turnout was in operation and to have them pointed downward so that any silt in the hub would fall from the hub as the turnout flow stopped or receded into the pipeline.

Two other experiences with silt in propeller meters tested in the laboratory are cited in this report to point out that' flow, heavily laden with silt., will likely introduce an operation and maintenance prob.:. lem whenever moving parts are exposed to the silt particles.

In tests on a turnout using an open flow meter (horizontal shaft)., it was found that a small amount of silt in the water of the labora!ory supply system resulted in a wearing and binding of the bearing such that the propeller would rotate intermittently at very slow velocities (below about 0~ 5 of a foot per second). A small deposit of silt was found in and near the front shaft bearing. When the meter was disassembled and ex­amined the bearing showed signs of wear (Figure 10). These conditions were discovered after the meter had registered 45 acre-feet of. water from the laboratory circulating system. Apparently the water contained a small amount of silt which entered and· deposited in the meter during each of the many times the test system was shut down and placed in oper­ation. The meter tube filled with water when the turnout was placed in operation, and drained when the turnout was shut off. Silt settling from· the water contained in the tube would not be removed by the draining action so there was an accum1,1lation of material in the lower portion of the meter on the propeller shaft worm gear, worm wheel, and in the three bearings. No studies were made with holes drilled in the hub of the propeller because the axis is horizontal and no sediment should col­lect inside the hub; however, these holes would no doubt help to minimize any tendency for silt to collect in the hub.

An 8-inch Sparling Main Line meter was used to measure silty water in a sediment study. The meter handled about 6. 3 acre-feet of

7

' . . -~.

silty water and 6. 6 acre-feet of relatively clear water •. An exc.essive amount of fine sediment collected in the shaft housing during the test (Figure 11). Registration accuracy tests made without disturbing the sediments showe~ a slightly low registration, particula,rly at low flows. In attempting to clean the meter for a recheck, the parts were disturbed to such an extent that the recheck was not satisfactory.

8 Interior • Reclematloa • Deaver, CIiio.

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c\: ~ :<.'~-:~~recast concrete collar

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------nlrr.­FLow -----=--

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the Contracting Officer.

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£. Vertical flow meter-/ Vertical flaw meter stand

_.-Location of outlet is ,.- typical. //,lay be opposite

/rand if directed.

PLAN VERTICAL FLOW IIIETER STANO WITH GATE VALVE

r---,2~- ' rllfToto/izing propeller meter

Provide connection) as directed.-----·

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":-1'----i-,,-.-------,,.., .. .1-- --~r ~ ·-,:ii; ~:-... . ,-Weir elevation shown

·.1 ' - / on profile ____ 4 __ r__

L---Ta119ue and graove·p;pe shown. For -----1 alternative installlftion with bell

( Vertical flow meter>---

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DETAIL A

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0J Second stage cone rete

SECTION C-C

For alter not ire bolt connect­,,---fr· Slotted hole,('IOIIQ

ion tp concrete pipe, see . : ... ;, .....

2~0-18162 Section f-f.--r-:-BF~~~ ALTERNATIVE PLAN

,- : and spigot pipe, see Section B-B ' I

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Type C col/ored/·oint when height o stand requir,s mor, than ___ _ one pipe unit-------

For details of cover, see 214-0-18141.---••• ,,,,

Natural ground surfoc,.i

Precast COnC!"ff pipe 0-.

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' .s :ii; . 'c:, tl''Gote w,w, ~ tJpe GV5:·--.

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,.----r One unit of bell ond spigot pip~, _·_ j tL.

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,-Type E collored closure joint l

-------:.,

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Type E collored _ closure joints--,···

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Second stage concrete------------

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DR1vE:1r drive-pin / ~I ~31 or equal-'

36" Precast concrete pipe.,

,-Natural ground :' surface

--Concrete Slrrer pipe

'-Nut threaded to fit drive-pin

DETAIL B

_. ---¾• St,el plate. 8Md to fit ,1

;- I or Fabricate with WIided : • -- seom.

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---Asbestos-cement pipe

,--Concrete sewer pipe

SECTION O-D

REFERENCE DRAWINGS PRECAST CONCRETE PIPE JOINTS-TYPES A, B,C,O, E, F ANOG,_214·0-18160

TYPICAL GATE VALVE INSTALLATION TYPE GV5 AND TYPE GVIJR .. 214·0·18141 CONNECTION JOINTS PIPELINE TO STRUCTURE _____________ 214·0·181/SB

VERTICAL FLOW IIIETER STANO INSTALLATION TYPE T_ _______ 214·D·/ll69

NOTES TJpe L installation used when head on upstream side of valve is 50

feet or less and when differential head across valve is 30 feet or less.

For type of vertical flow meter stand in deliveries, see deliverJ drawings.

UNITED STATES

DEPARTMENT OF TH€ INTERIOR BUREAU OF RECLAMATION

Provide connection_,/ os directed------ ;,;;;.~:.;'. ·<<i"s!··.;.Kj,:: ~;;.,Y -:, L.~ ~~ '~C';:¼~ff.Z?~T~l~·~~- -~1 ·1··-i

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(;ENTRAL VALLEY PROJECT-CALIFORNIA FR/ANT-KERN CANAL DISTRIBUTION SYSTEMS

DELANO-EARL/MART IRRIGATION DISTRICT·UNIT-2

VERTICAL FLOW METER STA.ND INSTALLATION TYPE L when gate valve is omitted---- - - ~

SECTION A-A

i ..., SECTION 8-B

DRAWN ______ ~'!~!-_. ________ SlJBlt,IITTEO ____ ~ ~~~ •-- ____ _

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N.G.S.,,

.' ,. ~ )- .. ,

Valve box cover , not shown.----' "'·i---Concrete blocks or other suitable

<i. Vertical flow meter

· spacers may be used so that concrete con be poured in one stage where approved by the contracting officer.

PLAN -- - --<i. Vertical flow meter stand

VERTICAL FLOW METER STAND TYPE T-1 ANO T-10 WITH 8" GATE VALVE TYPE GV6 AND GVB.

For cover details see Section 8-8 . .

., .. -.' ·,.

~- -­"co.-~

·~

9 I 2 3

SCALf OF FEET

-Meter assembly and asbestos-cement .' pipe not included in these specifications .

..,..---------'----------,,..,, .. -------,

/0 • Meter not shown-

Reinforcement not shown.----.. ..

:~:

',.._

'"" t5"---

I .s'. ~ I ~:::ie

/ .·: · <o:~ ,-Weir elevation Asbestos cement ' shown on profile

-... / _f!~~--------- · .· ------~--1

"' ~ -Kt--

J.l H ,-Taper t2"to

-Mortar joints

: ,--36"Dia. precast concrete pipe. ·'' Alternative instollatio11 with

bell and spigot pipe. Tongue and groove pipe shown.

. -Type C collared joint if

·'~

i~ c,:c:, ~1~

height of stand requires more than one pipe unit.

, -Type £ collared closure ,' joint if required ,

~ ~

{ a· Gate valve type GVB for type T-10.-------------

- J

L ___ _ <i. Delivery

<i. Vertical meter - - --

36 • Dia. precast concrete pipe.-,

2·, 2·~ 10 gage . welded wire fabric-,, f !-,

,_ ' 2"Min_ .. )--­

~ .. [.·.

N.G.5.--, '

-S ii! C) _,

3 ii J" Steel percolation ring; ..,

Man.olilflic concrete :collar-.

,: ~

i

~,2·s1eeve type coupling with pipe stop removed

'· -Firmly packed mortar

,_ - -second stage concrete

- -See Detail A

. . --- r l ;j i", [. ·v.···1--· ·>··--- '·3'Min . . J

SECTION A-A

' ' .,. ' x--- -:-/--· .

Firmly pocked mortor---j:' ___ ,2~---~

~·-­

' ---4'-o'- -- ----

·----x '

Provide gaskets_ i.......1---.- "~~'

-!..

FIGURE 2 REPORT HYO 374

__ - -21·00. plate steel flange; faced, drilled and ' topped for studs on concentric bore for

B"gote valve flange; and foced o.nrl drilled for t4"- light weight slip-on flonge A.5.A.

~ 4 Tr .' Locate outlet as directed

!

~-------L-----~---i ..-,,-<i. Vertical flow meter stand

PLAN VERTICAL FLOW METER STANO TYPE T-2

WITH 8" GATE VALVE TYPE GV5

, - 10 • Meter not shown

' ' y !

---KJ'··

----1

~ _, ')I

ff \\ ',raper 12·1o t0"·

N.G.5.-,

· .... ,,l.-12''.-.

Detoil A

SECTION B-B For notes ond dimensions n.ot

shown, see Section A-A

~ ~

~.

A _ _,J

B

I

(<i. Valve

-~ --1.

[' ,, Plot,'""''

' IX1d tee . '

- -----·~-.... !

GV5-B- '" studs I sfroJdJe cenfer.-----1

I0Goge,,

I . 7Goge

12-1 • Bolts straddle 'center-, -~'"f-

__ --t4"-l1ght we,ght sl,p-on flange A.SA.

J" . : i

ii Mm-- ->1...,-;,_i"Min. ,. • f.

ii Slotted hole, 1 long.. _ DETAIL A

.~.--. ·T; --+ Mortar-,, rt,;;,;.· :_ ~----~ __ - -Asbestos cement pipe

A .....J.

C I" ,"t •

2·4 Bolts------ -Concrete sewer pipe

36' Dia. precost concrete pipe- -~

DETAIL B

-1

Mortar._ -f Steel plate, bend fa fit or

fabricate with ·welded seam

--Mortar , .. ii Bolt---

36 "Dia. precast concrete pipe-_

-A sbestas cement pipe

' - Concrete sewer pipe

SECTION C-C

REFERENCE DRAWINGS rYPICAL GArE VALVE INSTALLATIONS TYPE GVS AND TYPE GV5ff ___ z,4-D-l814/ TYPICAL GATE IIILVE INSrALLArlON rYPE GV6R AND TYPE GV6.. ___ 214-D-l8142 rrPE GV6 ANO GV6R GArE VALVE INSrALLA rKJNs

SPECIFICAr!ON AND CONNECTION OErAILS ___ ____________ _ 2/4 -.0-18/5J CONNECr!ON JOIN rs., PIP~LINE ro srRucruRE---------------214·0·18/58 PRECAsrCONCRETE l'IPE JOINrs rYPESA,B,C._D,E,F AND G._ ______ 2/4-D-18/60

NOTES Concrete design, except precost pipe, base on o compressive

strength of 3000 pounds per square inch. Refer to delivery drawings for location and type of

vertical flow meter stands.

7-1&-54 HD PM. 11£.1.

T-Ia TYPE ADDED FOR GVB

UNITED STATES DEPARTMENT OF TH£ INTERIOR

BUREAU OF RECLAMATION

CENTRAL VALLEY PROJECT-CALIFORNIA

FRIANT-KE:RN CANAL DISTRIBUTION SYSTE:M DE:LANO-E:ARLIMART IRRIGATION DISTRICT-UNIT 2

VERTICAL FLOW METER STAND INSTALLATION TYPE T

PLANS. SECTIONS AND DETAILS

~ :::::o_Q~(':~·::::: :;:::~::~;;_~~--·:_--_·:: ~ CHECKE .APPROVED. _7_~~.-;,;,;,,iai. ..

"' DEN\IFR,COLORADO, DEC 19, 19,2 214-0-18169

1011 I rri meter ---

I I

-I =' I <D b (\J

(\J

Piezometer . ring_ E) (.'\I

II 8 Waterman v-alve al

with bellmouth1 Cl C ·-L. . N Cl)

· .. I

-LO ·.­. (X)

C 0 C L.

• N Cl) ·-

FIGURE 3 REPORT HYO 374

=' d ·. CX>·-.. ~

,,Piez. ring A ' a.

l \

I I , I

'

I ' ··.~.

~- 1211.,,,.j ' · · I · · ·.· 11 · II I<- --14 --><----- 18 -

-:--:a':..·-._·-:_ .. : , ....

VERTICAL FLOWMETER· STAND

LA.BORATORY , TEST: 'IN-STALLATION TYPE T-1

FIGURE 4 REPORT HVD 574

a,e I

~103 0 ... ~102 C,)

0 c 101 0 :;: flOO +-u, "c,99 f • ... ..

• IC ,_ 0 J,.,o .. 6 ..

~ • , .. .a I

• IC +8"' -.x I )l • • A IC

,. l(

ICIC. A ICJC -, • -~ Cl11.0

ti. 41 ~· ~ IA ,

I t I

.; ea, 0.5 1 .• 0 I.S 2.0 2.5 3.0 3.5 :!= Turnout flow in cubic feet per second

,

+ 12-inch miter bend to riser, a-inch bellmouth bellmouth valve under 135-foot head and valve fully open. various openings.

:K 12~inch miter bend to riser, a-inch bellmouth • 14-eby 14-by II-inch tee- to riser, a-inch valve under various heads and openings. standard gate valve under various heads

o 12•by 12-by 10-inch tee to riser, a-inch and openings. bellmouth valve fully open. • 14-by 14-by II-inch tee to riser, silty water

A ~-.by 12-by 10-lnch tee to riser, a-Inch at flow rate of 2.5 c.f.s.

Note: Tests were made using 10-inch pro1>eller meter without holes drilled In propeller hub.

A. TURNOUTS WITH TEE AND MITER BEND RISERS

a,e I 103

>,, C,) e 102

,Propeller with three 1/4-inch holes in hub. :::, \ . C,) :, C,) 0 IOI --C 0 :;: 100 ... e .. , ... u,

' ,:Propeller without holes. ·s, 99 - ~- t. f t-,

... 980

, .! 5 10 15 20 . 25 30 Cl) Flow duration in hours :IE

Notea1 Rate of flow a 2.5 cubic feet per second. Silty water approximately 5000 parts per

million by volume used In tests.

B. EFFECT OF SILT ON REGISTRATION ACCURACY

VERTICAL FLOWMETER STAND

METER REGISTRATION AOOURAOY

111 ••

A. TYPE T..;1-TURNOUT

B. TYPE L-1 TURNOUT

C. TYPE T-2 TURNOUT

FIGURE 5 R.£110RT. HXD 3.74

.,, I/ / l/

/ I/ / /

2.0---.---,--,-...,...---.,,,F--..,.A,...tm_o_s....,ph-e-re-.----..---r-~.---,-r-,r-r-,----..-,7~,---,-r71r,--,--, ._.___...-+---+---+-< 10" lrrimeter. H--1--1..---1..,--1---1--..L.+-H--A-+-++++-+-H __ LossAtoF

; ~---1-=L- - ~ (with meter) b ......... ___.-+---+---+---< : i 11 rt

,I I.Dss C to F 3 _! ~ -:,·-rr -E .I .,_O· 1.5 IO o , 'f' (with meter) -.,I 1---1,...--+-+--+--+--1 ~ ~ 11c--1o"dia. H-+-+-+++.q.-+-H.H-+-+.,-~.---,-t--t ~ 1---1,...--t--f--t--+--1 I UI , · ;' / • CD ' - · 1 / .,1 LDss EtoF /

_, i-, 1--'-11--1--1--+--+-, i ~--~-. I • ~12"dia. t~t1:1:;/~t~=:~.-1t:t~~<:::.w1:.::th::,...:.::m:;:et:::e;_!r>+.1£~+"+--1 ::l 1.0 .i..~- / I/ ~v ..2 A -BCD I/ V V ~

-g TYPE T-1 TURNOUT I/ / ,; i.,, i.,,

i V ~" 1...-.1:. I,' [/ 1 ....... 1 ...... ~

CD j' ·~...- 1...,..,... ...,.. LDss E to F .... . 5 0.51--iH--+:...++++-+-HH-+.,,,-,..,:;,i--i....~::i--+-Hi.,,H...-F-:..+...-~"'f-+-t-1 (meter raised J/4°)

= Cl) ~ ..... -..... IP LDss E to F I- - I-

d: ...,.. ::::;. ....- (without meter) I

0.5 1.0 1.5 2.0 2.5 3.0 3.5 Turnout flow in cubic feet per second

2-0---..... ....,.....,......,...----,,c,--""A..,.tm-os_p..,..h-ere--.1--;1--I---,S"-""'+--"T,,_-_;1--I-""'+--"T+--.....;T1--I---,S"-""'+--"T,,_-;07-:v_,+--"T+--,-1 10"·1rrimeter-~ I IJ'

.!' 1--1--1--+-+--+--1 l"" t--=*---i' ~ I/

c : ~ ·gi Loss A toe II' JI _: ~ r· , ·B 1---i,----+-+--t (with meter) 1--1--1/-,//.-+--+--+--+-+--i °o 1.5,1--1--1-+-+--~ ~ ~ w~IO"dia. / ... m = . .t -~.-+--+--+--+-+-+-1--1-+-+-I/---,#-· -+--+-+-+-1---1,...--+-1 .! ~i ~ . . :~:r 1--HH-+-+-t---t-+-+I/----Y'-++-+-+-t--t--+-+i,-~ .5 ~ I--I-IH-+-+-+-+-+l/--¥-:..+--+---1--+-HHL,--l:aA---I

en • .....i. V ~""' ~ 1.01--1--1--+-+--+--1

A 12" dia. V i,-·

g TYPE L·I TURNOUT 1_,. ,,. .,ir i,' I.Dss e to C .c l--l-l-+-+-+-+--r--.-.-,--,-.---.-.---.-+-+-t-1/-:Jl"+-+-+-t-~-1"~'"'+-+-+-1 (with meter)

f _,i...- -iJI 0.51--H--+-++++-+-+-H--+-+--l--11H,4-+-li,..-Hr!'=-:;+-l-++-+-cLD.i..s ... sL..=1B-,-to..L.::C.,___H-+-i

~ i,..- ~- (without meter ~ ~~ ~-

0.5 1.0 1.5 2.0 2.5 Turnout flow in .cubic feet. per second ·

F- Atmosphere 2.o~-+-+--+--1--11011 lrrimeter.

.. -1! i 'o 1.5

I--+--<--+---+--+-< ~-----t __ -: · t =!!! , ,..-IO''dia . ! j ,---- -E : ..

-.;, ~ ~1211dia. ........ ----<--+---+---+-<

I I I

Loss A to F 1--1--1--+--l ( with miter)

,v ,,

3.0 3.5

IJ1 V / /

-Cl)

-I!! .5

~ i .,· ::iJ

LossCtoF _ l---l--+-+--+--+--+-+-+-,,l't-,v-.-t--1--1 (with meter)

en ~ 1.0

: = ,·1411 dio. ,. ' / . -.i.-~ - 1---t-+-+--+-~a+-+-+-t---t-+-+-+-!:ol'F-+-+-I

H-t-+-6"'./'5,1"'-/+--t-t--'H--t-+-t.-F-/-t..--+-+-+-I ........ ----<--+---+---+-< -g A ~ ,, ,. ···c Cl) .I:

~ .,~ LossE1oF TYPE T·2 TURNOUT 1-~-bl-"-V-t--HH-+-+J+._.....!""':+-t-l (with meter)

f ~,... ..,.....-= 0.51--H-+-+-+-++-+-+-H-+-i-i.i::;"2,if'=-+-+-t-iH,_,..,il""l"=t-++-+-+--'H-+-i-+++-t G) .. ~

....,_,. ........ Loss EtoF H-+-+-+-++-+-+~__.---J:.....-,9-+-t-_--t-_,-t_.c:::_alo-"'F-H--t-+-t--11-+-+-+---H (without- meter)

- .a• ... 0·00'~.o,;::i.....L.......,___~o~.5,,......_,_......_.......,,~_o,..._..L..L.....JL.....L1.s,,.....__,_...._......,,2~.o,....._....._.L.....J~2~.5,,,....__,_...._......,,3~.o,.._....._....__.'"='as

Turnout flow in cubic feet per .second

VERTICAL FLOWMETER STAND

PRESSURE HEAD LOSS CURVES

FIGURE 6 REPORT HVD ll74

-----J -x I

I : : : I I .,, ...

A-----r------+---~ I

: ---------- 11 11---------. =· U) (~and-cement mortar.

I I I I I I

\ I

=' en +t--t-- ---- --+-+t- CX) : ____..t_. -

I '!...

I ! = ='

Sand-cement mortar pain!ed on surface.-~~-

\ \

ea-inch standard '1 waterworks gate valve.:-'

: *' I I ..

_i ! _____ Y.

t----- . ---- U) !;---- ----

' I I I

=' CX)

311 711 ---------------- ta a ----------------- --------· ------- ,a. ·-------------------. I"

k-. ------------------------------------37 4 -------------------------------------;.!

A. VALVE .AND TEE FOR TYPE T-2 TURNOUT '- ------- I

--------1011-------- I X-~---_,-,....-_-_-_-_-_-_-_-_-...... +-_-_-_-_-_-_-_-_-_-,..-_-:::::-x-·-X I

=' al:f I')

' '

I I

f.' I I I * ________ ,__ ____ ----I

I I I I I I I _,

cp I I I I I

x--.t...=::::1,t:::::::===.===::::::::!,:::::::::::1---x ~ ---------- 12" ---------->l

I = r-­t\l

,--12-to 8-inch bellmouth valve.

I I I I I I I I I I

I I

I I I I --+- :

I I I I I I I I I I

-+H----+- I I I I I I I I

~--- --~-- ------.-t-- ______ i__

'

8. VALVE AND MITERED ELBOW FOR TYPE L-1 TURNOUT

VERTICAL FLOWMETER STAND

LABORATORY TEST INSTALLATION TYPES T-2 AND L-1 TURNOUTS

_§_

x--1 I I

• I

!. IFLOW > -~ 0

a> : I I I I

.:, ,,,,,,J. I-~;;,,,, ,,

' I I I I I I I I I I I

~J GATE LEAF BOTTOM SHAPE

Gate valv~

I I I I I I-

.2 0

--t. ~ ----=t· -A ; I : 11

: '-----------------1831& -----------------------.------1 ,-, I I I I I I I I I =· ·1

t-- I I I I I I I I

! -~ ~ I . II '· , ·71 II . K ·-------------12 ---------. --- · .. >K ·------ .. ------------------------- ------------- 3 . if'4 -----· -------·------------------------------------~

l~RIGATIO'N VALVE ·STUDY

GV-7 VALV.E WITH SUOtlEN ENLARG.EM.ENT

:a -·~""' ·0-

·_1~~:a§ ·. c,ITI .... .,....,.

"II

i :II

"' z p

m HYDROMETER ANALYSIS TIME READINGS

Ill 45MIN. 7Hl15MIN. ,B: 60 MIN. 19MIN. ii-MIN.

-

I 90

I 10

IMIN. •200

. . •

II' I ~

• I .. II

V

U.S. STAN.DARO SERIES SIEVE ,NALYSI: OLE/R SQUARE OPENINGS

•100 '•50 •40 •30 "16 •10.,, •4 - I - 3• " 6" ·---- ,. ! __ .., i

I I I

I

I

I

70 I

co ZIIO iii en f I- 50 z Ill 0

~ 40 I L

30 I

I 10

10 I ...

0, ij

~ -

. g § §.

.ooe

I' .. . ~ I

I

I

I I

I I ,, I ,

I I I .

I I

-· • • I .

I • I • • ,

I

I •' I .~

I ,. I .I

~ - ,.· - -· 'L,,t//11"' __ ,_.

. 11 al&~ ~

.., ~ q

.005 .009 .Olr .037

. ~ ~l:i !I~~ "! r :1i2 "! r.., "'!"!9

N .., • 1ft ...... ,g ii lil i St Ii I? ~ii 2:0

.074 J48 .297 .590 1.19 2.38 4.76 9.52 19.1 38.1 76.2 127152 DIAMETER OF PARTICLE IN MILLIMETEftS

a"o

10

20

30

0 40111 z -~

Ill 500:

t­z Ill 0

60~ CL.

70

80

90

1'00

CLAY (PLASTIC) TO SILT (NON-PLASTIC) I SAND - I GRAVEL I FINE ] MEDIUM I COARSE FINE I ~OABSECOBBLES

NOTES:

Soil sample scraped off the concrete lining one foot below the water surface.

---- ( Bonny loess) Soil used in laboratory silting tests~

LABORATORY· SAMPLE No. FIELD pES!GNATION.

GRADATION OF MATERIAL USED IN SILTING TESTS ON

PROPELLER METERS

EXCAVATION NG. JPT T;.

::D

"' ,, 0 ::D 'Tl -4-

G)

:EC -<::o 0 I'll JI! ~CD

A. Meter Propeller with three 1 / 4-inch holes in hub -Note absence of silt inside of hub.

B. Meter Propeller without holes in hub. Silt deposit of 22 grams inside of hub.

Vertical Flow Meter Stands Silting conditions for vertical shaft propeller meter with and

without holes in hub

FIGURE 9 Report Hyd. 374

A. Silt deposit in front bearin1

B. Clearance in front bearing

Vertical Flowmeter Stands Silt deposit in front bearing of horizontal shaft propeller meter

FIGURE 10 Report Hyd. 374

A. Disassembled main line meter

B. Silt deposit in meter backbearing

Vertical Flowmeter Stands Material deposited in back bearing of 8-inch main line meter

FIGURE 11 Report Hyd. 374