IIII{ISTRY OF A6RICULTURE AIID - OBWB

IIII{ISTRY OF A6RICULTURE AIID FISHERIES

DEIIAI{D I,IAI{A6EÍ'IEIIT OF IRRI6ATIOII DISTRICT I{ATER

rECHl{ICAL }IORKI116 PAPER I{0.2

REPORT 01{ FLOI{ IIEASUREIIEI{T AI{D I'IETER SELECTIOÍ{

FEBRUARY 1990

SUPPLIES

L-

KERR I{OOD LEIDALCorusultl He

ASSOC IATES LTII.ErelNEERs

DEITIÀND MÀNAGEIIENT OF IRRIGÀTION DISTRICTAND METER

TTATER SUPPLIESSELECTIONREPORT ON FLOÍ{ IqEASUREHENT

CONTENTSTNTRODUCTION

1.1 BackgroundI.2 Scope of Flowmeter Research1.3 Sources of fnformation

TYPES OF ITIETERS

2.I Introduction

CRITERTÀ FOR IIETER SIZING

3.1 Introduction3.2 Flow performance1.3 Significance of Irrigation Requirements3.4 Summary of Findings

PÀCIFIC NORTHI'TEST EXPERIENCE

4.1 Introduction4.2 Types of Meters4.3 Need for Maintenance4.4 Meter Longevity4.5 Meter Reading Schedule4.6 Summary of Findings

OKÀNAGÀN VÀLLEY !{ETER DE!,TONSTRÀTION PROGRÀM

5.1 Introduction2.? Summary of Demonstration Meters5.3 Selection of Meter Locations5.4 Meter Installation

CONCLUSIONS AND RECO!,ÍIIENDÀTTONS

6.1 Conclusions6.2 Recommendations

l.

2.

3.

4.

5.

6.

DE¡{ÀND I.IÀNAGEüENT OF IRRIGÀTTON DISTRICT TÙÀTER SUPPLIESREPORT ON FLOÍÍ IIIEASURET.ÍENI-èNq METER SET.ECTION

¿_- APPENDICES

A MANUFACTURER'S LITERATURE ON POSITIVE DTSPLACEMENT METERS

B MANUFACTURER'S LITERATURE ON TURBINE METERS

C INFORMATION ON PACIFIC NORTH!{EST EXPERIENCE

L I S T O F T A B L E S

1.1 V.,IORK PROGRAM FOR METERING ANALYSIS

2.L TYPES OF MODERN METERS FOR WÀTER MEASUREMENT

3 .1 suMMÀRy oF FLorÎ PERFORMANCE FoR DrsptÀcEMENT METERS

3,2 SUMMÀRY OF FLOüT PERFORMANCE FOR TURBINE METERS

3.3 GUIDE TO TURBINE METER SELECTION

DEI,TÀND MÀNAGEIIENT OF IRRIGÀTION DISTRICTAND IIETER

¡TATER SUPPLIESSELECTIONREPORT ON FLOW I{EÀSUREMENT

l.

1.1

INTRODUCTION

Background

Need for Demand Side lrlanagenent

Increased domest,ic usage and requests for additional land tobe serviced with irrigation water have pur pressure on vari-ous rrrigation Districts to seek opportunitiès for sysE,em ex-pansion. The drought conditions experienced during the pastfew years have arso increased awareness of the timi.teo ãap-abirities of water supplies in the okanagan va11ey. Newirrigation supplies require high deveropmenr costs that makethese projects uneconomical using standard ARDSA criteria.Enphasis on water_ developrirent in the okanagan va11ey musttherefore be shifted from "supply-side" tó ',demandlside"management.

tletering versus Technological ÀlternativesKerr Wood Leidal Associates. Ltg. .(KWt ) have been retained bythe. Ministry of Agriculture'and Fisheries to undertake a com-prehensive study that identifies mechanisms available toimplement demand-side management, thereby encouraging betteruse of the existing water resources throì:gh improúed manage-ment and conservation. The study has a dual foêus in thati

the main emphasis is on metering as a possible demand-side management toolsecondary consideration is given to technologicar alter-natives Èo metering

The objective of this dual approach is to ensure that allavenues are explored, thereby providing proper direction foreventual imprementation of a regional úater resource manage-ment plan (or plans).

Study I{ork progran

T!" study work program for Demand llanagement of rrrigationDistrict iÍater suppties comprises a set of eight tasks,with Task No. 7 invorving ãn analysis of the costs andbenefits of metering water. Table 1-.1 identifies five sub-tasks to be completed as part of the metering analysis.

1-1

rà8r.8 I .1MRX PnÍERTX ÌìOR HETES,IE àNÀLXsIS

SUB-TÀSKNO- DESCRIPTION OF SUB-TÀ.SX TDENTIFICÀrI TÀSKS

rnvestigate the t)Þes of netera used on irrigation ancl domestic water aervices in otherjurisdictionsconfirm alternatives for metering baaed on current state-of-the-art technorogy, withbenefit-cost appll.catlon conparison

SeLect a preferred choice for neÈer typeDeterrnlne the nr¡nber and sizes of neters requíred to meter all servicesEstimate the capLtar coat of inetalling meters in the two DÍstlicts for different instarrationoptlonsEvaluate the most practical meter reading scheduleEstimate the annuar cosè of reading ¡neters and sending out cuetomer btlring based on meterreadingEstinate the annuar cost of nalntaining the meters for the two DistrictsEstimaÈe the quantity of ¡rater that the trro Districts could expect to save if alr se:were fully rneiered vvs'q =.lævL LU sdvc ¡r arl servtcesE6tlmate the possible changes ln peak day and pl(if all services were fully neteredEstimate tþe savings in power conaumption, chlorthe t!ùo Districts couLd expect if aII services rEstimate the impact on future syste¡na expansion

Prorate the costs based on flncllnge for the Glenmore and solid Districts under Task No. 7.3

Inveatigate different raÈe scheduleeDifferentiate between irrigation and domestic servíceConeider peak use vs annual coneumption der¡nands

7.1 Recorunend the ¡ûost suitable neters foruse by B.C. Irrigation Districts

7.2 Prepare preli_urinary designs foralternative installation options

7.3 Survey Solid and Glen¡nore IrrigationDistricts

7.1 Estimate the capital co6t of instaLlingneters in aII 35 IrrigatÍon Districts

7.5 Reco¡nmencl an appropriate rate schedulefor $rater servÍces

This Technical Working paper No. 2 deals with TaskNo.'l-r, and summarizes our findings as a result of re-searching frowmeter types. The purpóse of the refort is toidentify a meter type suitable fãr Ë.c. conditionË.The Terms of Reference are expricit in outlining a workprogram that comprises eight areas of investigaiion andanalysis. However, the assignment may be dejcribed as"elastic" in terms of the tev-et of efËort that courd beexpended in sat,isfying the Ministryrs information needs.

Scooe of Flowmeter Research

The scope of the fl-owmeter research effort is defined ingeneral- terms as follows:

r.2

identify companies that manufacture flowmeters suitablefor instalration on domestic and irrigation water ser-vice connectionso arrange for manufacturers to make technical presenta-tions on Èheir products

' contact. irrigation districts in the united States toobtain information on their experience

The research effort has resulted in an okanagan varleyMeter Demonstration program. The purpose of tÉe p.;g;;;,is to compare and evaluãte the perfbrmänce of a number ofdemonstration meters in an operãting environment, and overa period of years. This experience ïitt then be of practi_cal- value when preparing spècifications for possible futuremeter supply contracts.

1.3 Sources of Info¡mation

Heter l,ianufacturers

rnformation on flowmeters has been provided by the follow-ing companies:

Rockwell International of Canada

Neptune Measurement Division ofHersey Products Inc.

Lrd.

Schlumberger Industries

L-2

Rockwell and Neptune rank r-2 in the overall North Americanmarket for service connection flowmeters, and reportedryaccount for about 2/3 of sales volume. Rockwelr ãnd Nepltune dominate the canadian market, with Neptune apparentlyhaving about a 2/3 markeL share.

TIr" remaining L/3 of the North American market is shared bythree other manufacturers, incruding Hersey which iËattempting a breakthrough into the eritish colu-mbia market.Irrigation Districts in the pacific Northwest

Practical information on metering experience in the pacificNorthwest has been obtained from the following irrigationdistricts:

Lake chelan Reclamation District in central lniashino-ton

' The Dalles rrrigation District on the columbia Rivereast of PortIand, Oregon

' Tualatin varley rrrigation District south of port-1and, Oregon

The Boise, rdaho regional office of the u.s. Bureau ofReclamation (USBR) has also been consulted to confirm theextent of metering in the pacific Northwest. rn addition,the Denver headquarters of the usBR has been contacted todiscuss the Bureaurs specifications for meter types.American l{atemorks ÀssociationAnother source of information is Av^twA Manual M6 on hlaterlleters - selection, rnstallation, Testing, and l¡fainten-ance. rt is noteworthy that the fl_owmeters considered in!1i" study are manufactured in accordance with AWWA speci-ficaÈions.

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2.

2.1

TYPES OF METERS

Introduction

This section summarizes some basicof meters suitable for installationtion water service connecLions.

information on the typeson domestic and irrioa-

Tabre 2.r is reproduced f rom AIù¡tÀ ttanual ü6 and pro-vides a listing of available meter types. of theser thisstudy has identified the following as-iarranting considera-tion:

' displacement type (either nutating disc or oscillatingpiston)

' turbine type (either horizontal or vertical shaft)These meters are manufactured in the following size ranges:

' displacement: S/g- to 2-inches' horizontal turbine: 2- to 10-inches' vertical turbine: 3/4- to 6-inches

Appendix A incrudes manufacturer's Literature for displace_ment meters, while Appendix B includes literature for bothtypes of turbine meters. A1l three meter types are de-signed for use in the horizontal position as tËis providesfor optimum performance.

Description of Displacement lletersBackground

The basic tectr_nology for dispracement meters was developedin the late 19th century, añd originated as modificationsof pumps that were run bãckwards.

The displacement type of meter consists of three basic com-ponents: main case; measuring chamber; and sealed regis-Èer. The measuring chamber and register can be removedwithout removing the maincase from th; line installuiion.The measuring chamber is described as "positive dispLace-ment" because no new water can enter the chamber until_ theexisting water has passed through.

2.2

2-L

ÎÀBLE 2.1

Source: ÀÍùIùÀ l,tanual M6

TYPES OF MODERN IIETERS FOR TTÀTER MEÀSUREMENT

DESCRIPTIONUSUAL RANGE

OF SIZES

Displacement" Nutating disco Oscillating piston

5/8 25/8 2

Nondisplacement

A. VelocityMul ti-j etMagnetic-pickup turbineTurbine ( current)PropellerProportional

B. Differential pressure(a) Fixed opening, variable

differential OrificeVenturi, flow nozzle, flow tubePitot tube

(b) Variable opening, fixeddif ferential Rotameter

C. Mass flow

LeveI measurementh/eir, Parshall flume, etc.

r/2 1L/4 L2

2-122-723 - 10

2-242-72

Un1 imited

r/4 4

L/2 6

Unl imited

Compound" Standard compoundo Fire service

2-103 - 10

Oscillating Piston Type

rn basic terms, tle design principre utilizes a piston mech-anically aligned in a meãsuring c-hamber. water flow causesthe piston to rotate, with eg"h piston revolution beingequivalent to a known volume of watèr ( tfre contents of themeasuring chamber). This "measurement" is transferred bymagnetic drive and reduction gearing to a straight readingsealed register Eor display.Both Rockwell_and Hersey manufacture this type of displace_ment meter. rt is noteworthy that Hersey rèèently switchedfrom the nutating disc desiqn.

Nutating Disc Type

Neptune is now. tlq only manufacturer of nutating discmeters. The significance of this design i"-irru!- rt hasbetter 1ow flow characteristics than the ósci11at.inj rype.

Description of Turbine t{eters

Background

The basic technology for modern turbine meters al_so datesback to the late 19t,h century, and essentiatly remãlneo un_changed untir the 1970's when a ne\^/ generation of turbinemeters was developed.

rn 1978, AWWA c701 added a disÈinction between crass r andClass II types of turbine meters as follows:' Class I turbines are those coveredissued prior to I97g

' class rr turbines are the newer models that have im-proved metering accuracy, sensitivity and longevicyThe meter consists of two basic assembries: the maincaseassembly and t.h: measu_ring chamber assembly. The talter canbe removed and/or__replaced without oisturbing the maincasein the line installation.Horizontal Shaft Type

All three manufacturers offer the Magnetic Drive HorizontalTurbine Meter. .Th-is type utilizes ã relatively rriqrr-sp.eorotor with its shaft centred rongitudinarry in å.,ãñ-*uqn._tic section of straight, pipe. b.t" -Ëiaoe of the bar_ancedrotor contains a magnet. A magnetic drive coupres the rotorto the register.

2.3

in the standards

2-2

Water flowing through the meter causes the rotor (with mag_net ) to turn. The onry moving part in water is the rotorassenbly. Each revolution represents a volume of water.A separate strainer is normarly recommended to reduce boLhthe chance of the frequency of measuringchamber remova . fn aOäitioï, a siraiqhÉlength of pipe ahead of the meter in orderto improve t,he _stics. Neptune manuf acture astrainer that has a dual f unction in trrát it arso - i*prorr"=the velocity profile of the flow entering the meter. '

Vertícal Shaft Type

Only Hersey offer the MagneticMeter. This meter, available siflow vertically.

Drive Vertical Turbinence I977, redirects the

2.4

rt was developed as a special purpose meter for use in sys-and is a replacement for lne

ln allows sand to pass throughoperation. Even if sand OIObe temporary as the water flowor and dislodge the sand.

Th9 only parts that wear are the carbon bushings at the topand bottom of the rotor shaft. These are designed as. theweak link. Most of the time the rotor floats Éetween thebushings. Normar maintenance is limited to replacing thetwo bushings.

The meter has an internal strainer. rn addition, there isno need for a straight length of pipe ahead of the meter.

{eter Àpplications

Domestic Service Connections

The displacement type meter is suitable only for domesticapplications, and is the standard meter in 1-inch andsmaller sizes. The AIÎ!ùA states that the two variationsthe oscillating piston and the nutating disc - are essenti-ally equal in performance. According Éo the AtWriA, ;ãxperi-ence has shown that they are unrivalled for their combina_tion of accuracy, Iong fite, simple design, modeiai"-"o"a,and ease of maintenance". Tens or millions of these met,ersare in use.

2-3

Àlthough the vertical turbine type is arso manufactured inthe smaller sizes it is considerably more expensive thanthe displacement meter. The cost difference ieflects Èhedifference in manufacturing economies of sca1e.

Displacement versus Turbine Èteters

Displacement and turbine meters are both manufactured inthe r r/2-inch and 2-inch size range. For domestic appli-cations the choice between the two lypes appears to rest onwhat average flow rates are to be -measuiea, and the re-quired accuracy at 1ow flows.The displacement type is sirnpler and lower in cost, but theturbine type can be operated at a higher average rate.Irrígation Service Connections

The turbine met,er is the on.ry type suitabre for irrigationapplications. The displacement type is simpry not, deéigneof9. the high volume through-put -of an irfi{ation connec-tion.

Although hard data are not available for met.er rongevity(i.e. on a volume basis), it is rikely that a displacement^gt9f se,rving- a 10_ acre parcel wourd require reilacementwithin about 2 Eo 3 years. (Note: the annual võlume for10 acres is about 9 million gallons.) Of significance, theAWWA has not undertaken research in t.his arêa, mainly be-cause meter longevity is a function of many variables 1e.g.water quality, flow rates).The vertical turbine type has an advantage over the hori-zontal turbine type in that it can be installed at 90-degree bends because it creates the desired flow character-istics internally. The horizontal typer on the other hand,requires a swirl-free, uniform-erow-vèrocity profile in thepipe immediately upstream of the meter.

üeter Readinq Options

InÈroduction

The options for meter

direct reading of

reading include:

Ehe registerremote reading based on the meterrs magnetic drivegenerating a pulse output

automatic reading

2.5

2-4

These options are discussed briefty as follows. Additionalinformation is provided in Technical Working paper No. 4.

Direct Reading

Direct reading requires that the meter instarlation bereadily accessible.

Remote Reading

A remote reading feature is available for both dispracementand horizontal turbine meters, but not for vertical turbinemeters. A signal is sent by wire to a location (e.g. onthe out,side walI of a house ) that is accessible to themeter reader.

Àutomatic Reading

Both Rockwell and Neptune have developed erectronic instru-mentation for automatic reading of meters. Rather than in-troducing a third system, Hersey is currently developing aprototype meter that will be compatible with both Neptuneand Rockwellrs systems. The objective is to be able tosubstitute a Hersey meter for either of the other two.

Current technology involves the use of "reading guns', whichrecord meter readings with a simple "touch,'of an elect-roníc probe. The data are then downloaded into a computerfor processing.

The technology is now in place for automatic reading bytelephone, thereby eliminating the need for a meter reader.

Summarv of Findings

Domest,ic Service Àpplications

There are three choices for flow measurement at domesticservice connections.

- oscillating piston type of positive displacement meter

nutating disc type of positive displacement meter

vertical turbine type of meter

AJ-though the two displacement Lypes are considered equa1,the nutating disc type has better low frow characteristics.(Reference: Table 3.1 in the next section) . But thepiston design is reportedly less susceptible to breakagethan the disc design.

2.6

2-5

The vertical turbine meter has several advantages over thedisplacement meters, including:virtually no friction area (other than two bushings)such bhat it is considered virtually maintenance freethe measuring chamber is unaffected by sand and othersmal1 debris that may jam displacement meters

The only disadvantage of the vertical turbine is that itcosts more than the displacement type.Of signi tical turbine meter has been app_roved as to the displacement types by sev_eral B.c (including the City ;i Victoria,Saanich, d the Greater Victofia lr/ater Dist_rict). Of interest, Ehe City of Victoria recently-awardeda $40,000 contract for supply of 2-inch and 4-inch-diameterme te rs

Irrigation Service Connections

There are two choices for flow measurement at the rerative-ly smal1 diameter irrigation service connections that arecharacteristic of B.C. conditions, and these are:vertical turbine typehorizontal turbine type

The ver.tical type has a number of advantages over the hori-zontal- type , includ ing:

it is designed specificarly for poor water quality app-lications

it is manufactured complete with an internal strainerit, can be installed at 9O-degree bends

the need for long-term maintenance is limited to re-placement of two carbon bushings

one advantage of the horizontal type is, that it. has betterhigh flow characteristics (Refeience: Table 3.2 in thenext section). This has significance in meter sizing, andtherefore costr âs a specific application may ,""uil in thehori"gltll type being one size smarler than the verticaltype (Reference: Table 3.3 in the next section).

2-6

Of interest, although Hersey manufacture bothrecommend the vertical turbine meter over themeter.

fL

rn conclusion, a key word to describe the vertical turbinemeter is fl-exibility. The meter design lends itself to re-t.rofitting of existing service connéctions, particularlywhen working space is at a premium.

llanuf acturerr s lùarranty

A manufacturerrs guarant,ee on the entire unit is normalrylimited to a 1-year period, alEhough register units typilcally have a lS-year warranty

2-7

flow rates are constant (i.e. the irrigation system iseither on or off)Further to the second point, then, the laboratory perform-ance of a particular meter over a 1ow-to-high flo-w iu.,g" isnot a relevant consideration. on that 6asis, the -finedifferences between meters as claimed by the three nanu-facturers do not influence the comparison- of meters.RockwelI, Neptune and Hersey meters.are all manufactured inaccordance with 'AI/ùWA specif ications. Thus, it is reason-able to assume that comparable meters are generally equi-valent.

3.2 Flow Performance

3.

3.1

3.3

CRITERIÀ FOR UETER SIZING

Introduction

this section presents criteria for sizing meters to suitconditions in the Okanagan. Of significance:farms/orchards are typically small (i.e. about 20 acreson average; and often comprising separate parcels ofland in different 1ocationJ)

Flow performance data for displacement and turbine metersare summarized in Tabre 3.1 and Table 3.2, respectivery.For meters operated aL a continuous rather thán varyiigrate, AlvwA c701 specif ies that the maximum cont,inuous ratebe limited to 50 percent of the safe maximum opårati.nqcapacity. This ensures meter longevity.Hersey further suggest that the maximum continuous rate forirrigation applications be limited to r/g of the -maximumoperating rate.

Table 3.3 is a guide to turbine meter serection based onparcer size, and irrigation al-1otment. rt integrates typi-gul irrigation requi,rements with the f l_ow perfórmance datain Table 3.2. '

3-1

TÀBLE 3.I

ti

SUUIIIÀRY OF FLow PERFoRI,I.ANCE FoR DISPLÀCEI,TENT II{ETERS

METERSIZE

( inches )

MANUFACTURER I\¡UI(IVI.Éì'L UP LjRAI' I NGRANGE

( USqP¡n ¡

MAXIMUM RÀTE FORCONTTNUOUS FLOIÙ

( USqpm )

REGISTERCAPÀCITY

(MG)

3/4 ROCKWELLNEPTUNEHERSEY

23/4

2

tototo

303030

1515t5

r010IO

I ROCKI/ùELLNEPTUNEHERSEY

3to 50Ito 503to 50

252525

10t010

r r/2 ROCKWELLNEPTUNEHERSEY

5to2Lo5to

100100r00

505050

100100r.0 0

2 ROCKI/ÙELLNEPTUNEHERSEY

Bto2 I/2 to

Bto160160160

BO

BOBO

100100l_ 00

i

TÀBLE 3.2

SUIIMÀRY OF FLOT'Ù PERFOR.I,IÀNCE FOR TURBINE I.TETERS

I'TETERSIZE

( inches )

MANUFACTURER NORMAL OPERATINGRANGE

( USqpm )

MAXIMUM RATE FORCONTINUOUS FLOIV

( USqpm )

REGISTERCÀPACITY

(MG)

3/4 HERSEY* Ito 30 I5

1 HERS E Y* 1.5 to 50 25

r L/2 ROCKV'IELLNEPTUNEHERSEY*

4 to 1604 to 1602 to I00

BOBO50

r.0 0l_00100

2 ROCKVüELLNEPTUNEHERS E Y*

4to4to3to

200200r60

100100

BO

100r00r00

3 ROCKWELLNEPTUNEHERS E Y*

5to5to4to

4504503s0

225225L75

100r00I00

*based on vertical turbine model

TÀBLE 3.3

GUIDE TO TURBINE IIETER SELECTION

SIZE( acres )

IRED METinches

HORI Z .

5

10

15

20

25

30

40

50

I

r r/22

J

3

3

4

4

L/2

r/2

r/2

2

3

3

r/2

2

3

3

3

3

4

4

r/2

r/2

2

3

3

3

4

4

I L/2

2

3

3

4

+

4

6

r/2

L/2

3

3

3

4

4

4

3.4 Sumnarv of Findinqs

For a given parcgr size, the required verticar turbinemeter yi1l generally be one diameter larger than the cor_responding horizontal turbine meter. Thii tinoi'g rårrectsthe fact that the vertical turbine meter has froñ pãrrorm_ance characteristics equivalent to those for the oisprace_ment meter.

iL_

3-2

4.

4.r

4.2

PACIFIC NORTETTEST EXPERIENCE

Introduction

This section briefly summarizes key information obtained indiscussions with the managers of the three previously in-troduced irrLgation districts in washington ãn¿ oregon. Acopy of the Record of phone call to each dis tri.ct isincluded in Appendix C.

of significance, these are the only three districts withlong-term metering experience ( i.è. covering a 15 to25-year time frame). Two other districts in waJrrington arereportedly in the process of installing orifice ptãtes forflowmeterinq.

Although these usBR-funded irrigation projects incrude aflowmeter at each service connãction, the USBR has notdocumented metering experience.

Types of l,leters

The types of meters usedmarized as follows:

in the three districts are sum-

.DI STRICT TYPE AGE

( vears )

The DaIles

Tualatin

Lake Chelan

Badger propellerBadger turbine

Micrometer propellerRockwell turbine

Kent turbine

245

1Fl_f,5

I4

Of interest, the Badgerno longer manufactured.It'licrometer meters thatoperation.

propeller meter is a type that isAlsor the Kent meters replacedfailed after the first year of

The number of Badger and Rockwell turbine metersrelativery small percentage of the total instarled.1S

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4.3 Need for t'taintenance

The need for meter maintenance typically results from"meter burnout" when the meters are subjected to excessive-ly high flow rates for prolonged periods of time. unlikeB.C. irrigation districts, American districts do not in-stall flow control devices at service connections. Thus,it is reportedly a common occurrence for the maximum capa-city of a meter to be exceeded on a continuing basis.Meter burnout can be avoided t.hrough proper meter sizing.Specifically, the maximum capacity of the meter must ¡edouble the design flow rate. This provides protectionagainst the possibility of higher than normal flòws duringfilling of lines. The use of flow control- devices may theñbe considered as providing an additional safety factor toprevent meter burnout.

4.4

4.5

lleter LonqeviÈv

All three districts report good success with their meters.All three service their meters on a periodic basis, andreplace parts as required.

l¡leter Readinq Schedule

The three districts readfol lows :

bhe meters for billing purposes as

DISTRICT FREOUENCY WHEN

The Dalles

luaI at i n

Lake Chelan

Every 6 weeks

Once yearly

3 times yearly

Entire irrigationseason

End of season

June, August lst,end of season

Routine servicingmeters are direct

is completed atread ing .

bhe same Èime. All

4-2

4.6 Sunmary of Findings

rt is essential that meters be readily accessible forroutine inspection and servicing (as may bè required).Meters should last indefinj.tely provided they are sizedproperly, and are serviced on a regular basis.Flow control devices are advisable to ensure protectionagainst the possibirity of excessively high flow iates.

t.--

4-3

5.

5.1

5.2

5.3

OKÀNÀGAN VÀLLEY ITETER DEII{ONSTRÀTION PROGRÀII

Introduction

This section summarizes the ongoing effort to setup anOkanagan Valley l,ieter Demonstration Program. The pur-pose of the program would be to field test both displace-ment and turbine meters as manufactured by Rockwell, Nep-tune and Hersev.

This program would provide Irrigation Districts with theopportunity to become familiar and comfortabl-e with themeters under actual operating conditions. This firsthandexperience would then be of practical value once a decisionis made to proceed with implementation of a universalmetering program.

It is anticipated that the time-frame for the DemonstrationProgram could be in the order of S-years (at a minimum).

Su¡nmarv of Demonstration l{eters

The following table summarizes the type, síze and number ofdemonstratiqn meters committed to the program by the . threemanufacturers.

MANUFACTURER TYPE AND SLZE OF METERHORI ZONTÀL

TURBINEVERTICALTURBINE

L I/2 2 r L/2 2

ROCKWELL

NEPTUNE

HERSEY

THREE

TVfO TWO

THREE THREE

In addition to the 13 turbine meters, 2 Neptune positivedisplacement meters r¡¿ere purchased for the program and in-stalled in the Glenmore rrrigation District in summer 1989.

Selection of l{eter Locatíons

the idear situation would be to have a sufficient number ofmeters to provide a direct comparison of the performance ofthe three different manufacturers under the same operatingconditions. rn view of the limited number actuarly availlabre, however, the meters must be distributed judiciouslyin order to establish a reasonable basis for a comparativeassessment.

:¿

f

:

5-1

Preliminary criteria forbeen defined as follows:

selection of meter locations have

install in a maximum of two irrigation districtsmeasure different water use for farmers with the sameirrigation system but different crops (e.g. fruits ver-sus forage )

measure different water use for same crops but differ-ent irrigation systems (e.g. hand movedr solid set,trickle )

The actual selection of farm locations wilr be made by thetwo irrigation districts named by the Association of B.c.rrrigation Districts. These districts will then be res-ponsible for installation and reading of the meters.

5.4 I'leter Installation'The meters will beirrigation season.the standard detaiTask No. 7.2) .

installed by Spring 1990 in time for theInstallation will be in accordanie wiLh

1s developed as part of this study (i.e.

5-2

6.

6.r Conclusions

Based on the information presented in the foregoing sections,it is concluded that:Meter Types and Àpplications1.

2.

3.

well suited to an irrigation applica-

The vertical turbine type is also suitable for domesticconnections.

Horizontal versus Vertical Turbine lfeters4. The vertical turbine meter provides more installation/operating frexibility than the horizontal turbine meter.5. Fierd testing both types over about a S-year periodunder the okanagan valley t¡teter Demonstiation pro-

gram would be an effective way to evaluaÈe relativeperformance.

Displacement meters can only be used on domestic serviceconnections.

Turbine meters aretion.

6. The frow capacity of a verticar turbine metercally equivarent to a horizontal turbine meterone diameter smaller.

is typi-that is

Meter Longevity

7. Meter longevity is atotal flow volume, and

B. The design flow rateexceed 50 percent ofmeter.

function of maximum flow rate,water quality.

used for meter sizing must nott,he rated maximum capacity of a

9. Properly sized and regularly serviced meters shourd lastindefinitely ( i.e. 15:pIus iears) .

Meter Installation and Reading

10. Meters must be readily accessible for inspection andmaintenance.

rrrigation meters need only be read seasonarly for birr-ing purposes.11.

6-1

Ë

:

!'

It

L2. Meters can be read in conjuncÈion with normal servic-ing of irrigation connections.

Recommendations

Based on the foregoing conclusions, it is recommended that:1. Both displacement and vertical turbine meters be usedfor dornestic service connections.

2. only turbine meters be used for irrigation serviceconnections.

3. The final selection between the vertical and horizon-ta1 turbine types be based on the findings of theOkanagan Valley lleter Demonstration program.

6-2

ÀPPENDIX À

MANUFÀCTURERI S LITERATUREON POSITIVE DISPLACEI.IENT I{ETERS

w-847 R9

Sealed ReqisterWater Meters-Al Rockwetl

DISPLACEMENT TYPEMAGNETIC DRIVE

COLD WATER METERS1 112'(DN 40mm)

AND 2" (DN 50mm) SIZES

APPLICATIONS: Measurement ol cold water where ftow ¡s ontv ¡n oned¡rectron; in fesidenl¡al, commerc¡al and industrial services.CONFORMANCE TO STANOAROS: Rockweil Seated FegisterÓ WaterMeters comply with ANSI/AWWA Slandard C700 Each meter tsperformance tested to tnsure compl¡ance.CONSTRUCTION: Rockwetl SRo Water Meters consist of three basrccomponents; maincase; measuring chamÞer: permanenily,hermetically-sealed register. Maincases are of bronze w¡th either f lanqesor rnternally-threaded spuds. Measuring chambers arà of Rocksyn,J, acorros¡on-reststant thermoplast¡c material. Bronze measuring cham-bers are available as an option.

S¡mplic¡ty of design and precise machining of componenrs altowsrnterchangeab¡lily ol parts among t¡ke.size meters to prov¡de ease ofmaintenance. The register. meesuring chamb€r and stratner can Þ€removed without removing the ma¡ncase from lhe ¡nstallation.SEALEO REGISTERo: PermanenUy, hermet¡cally seated: provenmagnetic drive design; with integral tamper-prool tock¡ng device.Guaranteed for 25 years. The standard reg¡ster includes a straighl-reading, odometer-type totaltzation disp¡ay; a 360o test crrcle with centersweep hand; and a low flow (leak) detector. Gears are selflubricat¡ng,molded plast¡c for long lile and min¡mum lrict¡on. The hermettc seatingof the register elim¡nates d¡rt and mo¡sture, tamper¡ng. and lens logg¡ngproblems

No change gears are requtred for accuracy cal¡brat¡on. Generator-type and encoded-type remote reading systems are available for all SRoWater ¡¡eters (See back of sheet lor addit¡onal informat¡on )TAMPERPROOF FEATURE: Fìemov¡ng the register to obtarn free waterrs prevented by a locktng device rnstde the meter Removrng the reg¡sterrequ¡res a special tool that ¡s avatlable onlV to water ut¡litiesMAGNETIC DRIVE: The unique des¡gn of the d¡rect magnetic dflve rs aposrtrve, relrable. dependable dr¡ve coupling, proven in millions of SR@Water Meters

OPERATION: Water llows through the meter's stratner and into themeasuring chamber where tt operates the p¡ston The ptston. whrchmoves lreely, osctllates around a central hub, guided by the rubber-coated div¡ston plate

A dnve magnet, rncotporated ¡n the ptston, rotates around the outsrdeof the hermet¡cally sealed register welt and magnettcaily dflves the''Folfower" magnet sealed withtn the well The "follower" magnet drives acrank connected to the reg¡ster gear tra¡n. wh¡ch ttanslates the numberof p¡ston osc¡llat¡ons into volume totalization units dtsofaved on thereg¡ster face

MAINTENANCE: Rockwetl Seated Registerc, Water Meters areengrneered to provide long-term vãlue and virtually ma¡ntenance-freeoperat¡on because of thetr desrgn srmpltcity and rnterchangeabrltty ofmodules Bockwell SB. Water Meters are easy to reparr, even wilhoutremovrn9 lhe marncase from the ¡nstallatton As an a¡ternative to repatrby the utrlrty, Rockwell ollers varrous marntenance Oroorams wnrcnprovrde factory recondtttonrng of the marncase and rejlacement olcomponenls al low ltxed pnces

CONNECTIONS: Tatlpreces/Companron Flanges lor rnstallrng themelers on a vaflely of prpe types and srzes are avallable as an ootjon Forflanged meters, the use of a Fìockweil Modet 926 Flanged CouptrngAdapter rs recommended to facilrtate the installatron and anv futureremova¡ of the meter from lhe ltneGUARANTEE: Rockwell SR" Water lvleters are backed by the exctusrveEronze-Clad XV Guârantee Ask your Rockwell reoresental¡ve lor

rletarls

172" SR@(DN 40mm)

SERVICE

. NOFMAL OPERATINGFLOW RANGE

ACCURACY

LOW FLOWREGISTRATIOI{

MAXIMUMPRESSURE LOSS

MAXIMUM OPERAÎINGPRESSURE

MEASURINGELEMENf

REGISTER lYPE

REGISTRATION

CAPACITY

..METERCONNECTIONS

MATERIALS

cold water meâsuremenl with llow in only one directìon

!%'l (ON 40mm) s¡ze: 5 to 100 gatlmin(1.1 to 23.0 mvh)2" (DN 50mm) size: I to 't60 oatlm¡n{1.8 to 36.0 mi/h)

100 : 1 5% of aclual throughput

17," (ON 40mm) size: 95% at 1% 9al/min(0.35 mr/h)2" (ON 50mm) size: 959o at 2 oal/min(0.45 mr/h)

17:" (ON 4omm) size: 11 4 psi at 'tOO gat/min(0.8 bar at 23.0 mr/h)2" (ON 50mm) size: t2 1 ps¡ ar 160 gathin(0 I bar at 36.0 mr/h)

15O ps¡ (10 0 bar)

osc¡llat¡ng pislon

strarght readrng. hermet¡cally sealed,magnetic dr¡ve w¡th low flow ind¡catorRemote reading unit opt¡onal

100 gallons, 10 cubic feet or 0 1 mr/sweep hand revolution

100.000,000 gallons, 10,000.0O0 cub¡c feet, 1O0.OOO m¡

1%" (ON aomm) s¡ze: two bolt oval flanged spuds orI % (47 80mm) internal pipe threads2" (ON 50mm) srze: two boll ovat llanged spuds or2" (59.61mm) internal pipe threâds

lThlelds are tapered prpe, ¡nternal type, conforming toANSI 82.1 or ISO R-7 rl specllied. Ftanges areAWWA 125 pounds (PN 10 bar) ctass.l

matn case-bronzemeasunng chamber- Rocksynt-standard

bronze-opt¡onalma9nets-cetamrc and Alntcostrar ner- lhermopl as ttclnm-Slatnless slælcas¡nq bolts-starn¡ess steel

Max¡mum rates ltsted are lor tntermtltent llows onlv.Maxrmum contrnuous flow rates as spefllted by AWWA are:

1'1" (ON 40mm) srze so/gat/mrn (11 0 mJlh)2" (ON 50mm) srze B0 gallmrn (18.0 mrlh)

Flanged spuds are slandard for 11,," (ON 40mm) and 2" (ON SOmml sizemelers and wrll tJe furnrshed unless otherwrse spectl¡ed lntefnallapped prpe lhreads only are supplred lor tSO meters

2" SR@

(DN 50mm)

Remote Systems-For use with all sizes of Rockwell SRo Water MetersTouchReadTM Automated MeterReading and Eilling System - ís amulti-purpose encoded remotesystem suitable for indoor and/oroutdoor use. ïhe ElectronicCommunications Register (ECR) usesa two-wire non-polarized connectionbetween the meter and an outsideremote TouchPad data transfermodule. With a TouchRead PitLid(TRIPL) module pit-set meters can beread automatically without lifting themeter box lid. The meter renistêrtactory seated ro ir'å Þ¡ir-ii7"äãrr", ¡.interrogated by touch¡ng a PitProbeto the l¡d mounted module to readand store the meter data, even infloocled pits. See data Sheet W-792.

A non-remote version of the Touch-

ReadTM System is also available forp¡t-set meters. lt uses a data transfermodule built into the top of the register(TR version) or a similar module whichcan be later converted to a wiredremote, or connected to an ¡nterface un¡tfor centralized billing, (the TouchReadConvertible (TRC) version.) All versionscan be read with a visual reading device,and/or a cassette tape or Solid Statelnterrogator/Recorder. See data Sheetw-790.

Tele-Tape Remote (TTR)TTR is an encoded remote svstemintended for comouterized or centra-lized billing. Access to the encodedregister is through a plug-in typeinterrogator receptacle at a remotepoint. Meter registration can be

recorded on magnetic tape throughthe use of a hand carried portableinterrogation unit. Three conductorwtres connect the meter to thereceptacle. See data Sheet W-8S5.

Self-Generating Remote (GTR)ln the GTR remote system'a metergenerates and transmits an electricalpulse to a remote total¡zer. Two non-polarized wires connect the remotereadout box to the meter. The meter,sgenerator unit ¡s submersible. See dataSheet W-966.

Electronic Registerslmpulse Contact Registers and High SpeedPickup Registers are available for use withAct-Pak@ lnstruments for remote monitorinoand control, based on flow rate and/ortotalizat¡on. See data Sheet E-1112 & E-1 116

(

METER SIZE CONNECTIONS A B c D WIDTHBOLT

CIRCLE

NUMBEROF

BOLTSBOLTsrzE NETWEIGHT'

1-1/2(DN40mm)

Flanged 13(330mm)

6-7 /8(175mm)

2-21/32(68mm)

5/8(16mm)

8-3/4(222mm) (102mm)

2 5/8(16mm)

26 bs.(12 ks)

Screwed 12-5/8(322mml

6-7 /8(175mm)

2-21/32(68mm)

N/4.. 8-3/4(222mml

N/A" N/A" N/4.- 23 lbs.(10.5 kg)

2"(DN 50mm)

Flanged(432mm)

7-17 /32(192mm)

2-5/8(67mm)

5/8(16mm)

9-1 1/16(246mm)

4-1/2(11Smm)

¿ 3/4(19mm)

42lbs.(1s ks)

Screwed 15-'t/4(388mm)

7 -17 /32(192mm)

2-5/8(67mm)

N/A"' 9-1't /16(246mml

N/4.. N/A" N/4.' 37 lbs.(17 kg)

Dimensions and Net Weights

'Rocksyn measuring chamberMeter ¡s ava¡lable with eilher flanged or screwed end connections. Flanged end meter illustrated lo show oval flange and bolt patternEnd connection threads: "1-1f2" (DN 40mm) - 1-1t2" N P.T. lnternel Threads o( 1-1t2" ISO R.7 tnternational Threads, ¡f sDecified

"'2" (DN 50mm) - 2' N.P.T lnternal Threads or 2" ISO R.7 lnternat¡onat Threads, if specified

PISTON SEALEO REGISIER

RETAINER NUI

t

OIVISION PLATE

-loF.-

STRAINERMAG NEIICCOUPL¡ NGIDN 50mm) DIALS SHOWl.l

A

PISfON CONTROLROLLER

Rockwell lnternational, Measurement & Flow Control Division/400 North Lexington Avenue/Pittsburgh, pA i52Og

Water MeasurementEquipment & SystemsSales OfficesNORTHEASTERN AREA39O North Lex¡ngton AvenuePittsburgh. Pennsylvanra 15208Phone: (412) 247-3431

MIO.CONTINENT AREA1996 Univers¡ty LaneOrawer 105OUsle, llhnors 60532Phone: (312) 852-0026

SCUTHEASTERN AREAffi21 Bay C¡rcleSu¡le 16ONorcross. GA 3OO7lPhone (4O4) M7-47æ

SOUTHWESTERN AREA5155 Blalock DflveHouslon. Texas 77041P O Box 40126 lZtg Codel 77240-0126Phone (713) 462-2801

WESTERN AREAlô32 Sierra Madre CrrclePlacenl¡a. CA 92670Phone (714) 666-0200

CANAOIAN SALES OFFICEFlockwel¡ lnlernalronal olCanada Ltd214 Bayvrew DrrveBårrie. Ontaro L4M 5N2Phone: (706) 737-4161Telecopy l705l 722-3730Terex 610-392-0247

HE.AOOUARTERSMeasurement & FlowConlrol Drvrsion400 Norlh Lexrngton AvenuePrttsburgh, PA 15208Phoneì {412) 247{æ0

INTERNATIONAL SALES OFFICEMeasurement & Flow Control Drvrsron30 Globe Avent¡eTexarkana. AR 75502Phone (501) 773-5126Terex 5108756856ïelecopy (50t) 773-5212

FOR CUSTOMERS IN THE UNITED STATES:OIRECÍ TO FACTORY TOLL-FREE PHONE OROERS: From Northeasrernand M¡d-Conlirì€nl ârea slales, ercepl Pernsylyania. phone B{þ/245-4095.. From Pãtnsylyania: Phone 800/342-2651 . From Soúheaslern, South-we3lem and Weslem area slates, Phoñe: 800/24t4058.MAIL OROERS OIRECT TO FACTORYSend to: Otd.r Oeparlmenl, Rækwell lnlerñãt¡onrt. Bot 487, Uniontown. pA l54Oi

øf Rockwell lnternatlonal

wher€ scr€nce q€ts down lo txJstness Or.^r^^!^lrC^

Neptune Water Division

4g

Features Performance.ßOLL.SEALED REGISTER> Êlliminates leaking and fogging> Magnetic drive, lowtorque registration> Straight reading, large numerals> Glass lens for legibility> Low flow indicator to detect leaks> Bayonet mount to allow in-line service

ability> Tamperproof seal pin to deter theft

CAST BRONZE MAINCASE> Sturdy, durable, corrosion resistant> Proven lifetime material> Resists internal pressure stresses and

externaldamage> Handles in-line piping stress> Electrical grounding continuity> Residualvalue> Flanged or scrs/v ends

NUTATING DISC MEASURINGCHAMBER> Synthetic Polymer (SP)or Bronze> Proven accuracy-all flows> Excellent low flow accuracv for

lncreased rs/enue> Minimum head loss> Corrosion resistant> Floating chamber design

Every Neptune T-10 water meter meetsor exceeds the latest AV1A¡VA Standard,C7O0-77.lts nutating disc, positive dis-placement principle is time proven foraccuracy and dependability since 1892,ensuring maximum utility revenue.

ConstructionThe Neptune T-10 water meter consists

of three major component assemblies: aroll-sealed register, a cast bronzemaincase and a nutating disc measuringchamber.

The direct-reading register assembly isroll-seaied, eliminating lens fogging, andis coupled to the measuring chamber bya magnetic drive. The register contains alow flow indicator for leak detection and,for reading conrenience, can be mountedon the meter in any of four positions. AIsoavailable are remote reading registers forNeptune's ARB (Automatic Reading andBilling) System, the Pulser-RM visualremote system, and the Tricon/S andTricon/E systems. The register is securedto the mancase via a tamperproof seal pin.

The corrosion resistant cast bronzemaincase will withstand most serviceconditions: internal water pressure, roughhandling, and in-line piping stress.

The innovative floating chamber designof the nutating disc measuring elementprotects the chamber from frost damagewhile the unique chamber seal exlendsthe low flow accuracy by bonding the -

chamber outlet port to the maincase out-let port. The nutating disc measuringelement utilizes corrosion resistantmaterials throughout and a thrust rollerto minimize wear.

WarranV andMaintenenceNeptune T-10 meters are warranted byNeptune Íor performance, malerials, andworkmanshio. Neotune further offers anoptional post-warranty maintenanceprograll for extended service life.

When desired, owner maintenance is

easily accomplished either by unitizedreplacement of major components or byparts repair of an individual component.

NeptuneT-10

ï-10 Cold Water MetersS|ZESll/z'&2'

SchlumbeqerNeptune Water Divisron

SpecificationsAPPLICATION

Cold water measurement of flow ¡n onedirection.

MAXIMUM OPERATING PRESSURE1 50 psi (1 034 kPa)

REGISTERDirect reading, center su,eep, roll-sealed,

magnetic drive with lor¡/-flow indicator.

MEASURING CHAMBERNutating disc, vulcanized hard rubber.

CptionssrzEs

1Vz" flanged or scrq,v end2" flanged or screvtr end

UNITS OFMEASUREU.S. GallonslmperialGallonsCubic FeetCubíc Metres

REGISTERTYPESRemote Reading

System options:ARBPulser-RMTilcon/STricon/E

MEASURING CHAMBERSynthetic Polymer or Bronze

COMPANION FLANGESCast lron or Bronze

REGIONAL SALES andSERVICE OFFICES

@ Copyright 1989 Schlumberger lndustnes, Inc

Normal Operating Range@ 100o/o Aècuncyl¡ l-si%l

2 to 100 US gpm0.45 to 22.7 mslll

5 to 100 US gpm1.1 1o227 m3lh

3/n US gpm0.17 m3lh

2t/z \o 160 US oom0.57 to 36.3 m-'ilh

1 US gpm0.23 m¡/h

REGISTRATION

Regislration (per sweep hand retolution):lVzn 2n

100 US Gallons100 lmperial Gallons10 Cubic Feet1 | Cubic Metre0.1 Cubic Metres

I

I

II

Register Cagacity (6 wheel odometer):

1Y2 2"100,000,000 US Gailons100,000,000 lmperial Gailons10,000,000 Cubic Feet1,000,000 Cubic Metres

100,000 Cubic MetresDIMENSIONS

MeÞrSize

A Bc o

En/mm

ApPfnx.Wþiqht

S.P. - 8¡z-lbs/kq tbs/kq

std ARB Pul r [ËäqgPer lnch

fhÞadType

1 t/2"Scrar End

127s321

StAa205

ö1/a206

Es/ta'217 9tt/t6252

1 11/2 t,/2NPT

Zele 2712.2 1À 4

'l 1/2"

Flanged End13

33081Aø205

öt/s206

ðr/¡ø217

9tr/ta252

1416 3114.1 r 5.9

2"Scrq,v End

151h387

97/¡ø240

V/tø237

9s/¿

2481'l \/8 l1t/z

NPT3VøIJ

3415.4

4018, 1

2',Flanged Enc

17432

97/ts240

95/ta¿,5I

93/¿248

1 1Vs283

3VB79

3817.2

4420.0

ACCURACY CHARTS

2"

11/2"

2"

T1GINTER ]/89 15K

rS Series OP400/500

PosÍtive Displåcement MetersSizes íle'-31+'-Itt

-ILlzo -2'DESCRIPTION

The Hersey Series OP400/500 are positive displacement, cold water meters.All meters in the series consist of a main case, ¿ul oscillating piston type measur-ing chamber, a sù¡ainer, a removable top llrlz",2") or bottom lul"', "¡oo,lf plate,and a magnetically driven register assembly. The main case is bronze. For theíleu,gl¿u and 1" models, the measuring assembly is a top-in and bottomout designconsisting of the rqeasuring chamber, the piston, a¡rd chamber top assemblywith drive ba¡ and magnel. For the 1.rlz" and 2"models, lhe measuring assemblyis a bottom-in and sideout design.

Registers a¡e available with center sweep hand, straight readingindicatingcubic feet, US gallons or cubic metres, and have a low flow leak detectionindicator.

OPERATIONSeries OP400/500 Met¿rs are designed to operate on the oscillating piston

principle. In basic terms, this design principle utilizes a piston mechanicallyaligned in a measuring chanber. lüater flow causes the piston to rotate, witheach piston revolution being equivalent to a known volume of water (thecontents of the measuring chamber). This "measu¡ement" is transferred bymagnetic drive and reduction gearing to a straight reading sealed registerfor display.

APPLICATIONOP400/500 Meters ale designed for use in cold water supply lines, such as'

residential or small commercial applications. Also specified cold water installa-tion where water volume and flow rate is at or below rabed capacity.

PFODUCTS.INC.

FEATURES

Low flow sensitivity.

Magnetic coupling assured at allflow rates.

Built-in strainers.

Removable measuring chamberfor in-line service.

R¿mote meter reading registeroption.

Low flow leak detection indicatoron register.

Appnrvals include: AWWA C700

Series OP400/500

MATERIALS AND SPECIFICATIONS..'=Melercase .. " bronzeMeter bottom plate . . . . bronze or cast iron*Measuring chamber . graphite-impregnated

thermoplasticThrust bearing insert . . . molybdenum loaded nylonPiston " lhermoplasbicDivision plate . . . molybdenum loaded nylonDriving bar . glass bead loaded nylonStrainer . . polyacetal resin (2"stainless steel)Registercan.. ....90?o copperalloyRegisterhousingandlid . . polyacetalresinorbrassRegister support ring . . ABSRegistergearing .....plasticNumberwheels ....polyacetalresinLens . tempered glass.r5/a'and l'onlv

End connections . . 'lan,s¡o',1"external straight pipeth¡eads (ANSI 82.1). Bronze or

polymer coupling nuts a¡e available(1" coupling available in bronze only).

ILlz',2'twobolt oval or internaltaper pipe th¡eads available, bronze

coupling nuts and tailpieces forth¡eaded end meters.

End flanges ,lLlz",2" . . . . . twobolt oval, 2-bolt cast iron orbronze companion fl anges available.

Maximum rated working pressure 150 psiTbmperatureranç ....33o-120"FNûfE: Hersey Positive Displacement water met€rs comply with the lateststanda¡ds adopted by the American Water Works Association Sta¡da¡dC-700. Cold Water Meters.

FLOW CHARACTERISTICSAccuracy " .1007o+1.57o ol actual inputNormal Operating Flow RangeOP43olula').. .....1-20gpmoP430 lsle" x glt"l . .7-25gpmOP442(3ln"l .. .....2-30gpmOP452(I'1 ... .....3-50gpmOP562lLllz'l .

OP572(2')... .. ".8-160gpm

Low Flow Accuracy (at977ol

OP430 (6le') .. . ÌågpmOP430l5le"xslt") .... r¿pmOP442(314"1 .. . r/zpm

ïliïilil",, :: :: : : ::: ::: :: : :::: : 'l;i,x j

OP572(2!'1... . .2gpm ¡

AccuracY'51a" X \2" andfla" x Sla"PERFORMANCE (Performance curyes are typical only and not a guarantee of performance)

RAIE OF FLOì¡/ - U.S, GPM

Accuracy -Bl¿u x 3l¿"

ot¡JEt¡J

ø(4TIJ

Fzt¡Jo(rl¡l

oUJÉ.u¡

ø('LlJCE

l-zt¡t

LUG

-U)o"

IJJ(rfU'U)[rJ

o-lloÜtU'oJ

-U'(¡j

ut

U)(t)uJ(EÀtro<n<n

:J

Head Loss - sle" x \2" and,íla" x glt"

RATE OF FLOìA/. U.S. GPM

Head Loss - 3/¿"

ÀPPENDIX B

IIÀNUFACTURER I S LTTERÀTUREON TURBINE I{ETERS

w-838Rt

SERIES "W''

Ti¡rbo-Meters2I RockweuMOOEL W.f2O DR

BRONZE MAGNETIC DRIVEFLANGED

END CONNECTIONSSIZE 11/2" (DN 40mm)

Llúcl$ll lacrîÊErål

anÈrf I ,^rÐ ÞÊ -

Araê

DIRECT READING REGISTERS

MODEL W-120 DR Turbo-Meter is based on the turbine principle ofmeâsurement;.its operating range is from 4 to 120 gallons'per m¡nute(u.y ro z/mr/n) wtth arccuracy registration of 1000/o +1.50/o of actualthruput.

ROTOR: The .thermoplastic rotor w¡th graph¡te bearing rotates on achrome plated sta¡nless steel shaft. Thé rotor assembly is weightlessin water, thus adding to bear¡ng l¡fe.

SERVICE

OPERATING RANGE

ACCURACY

LOW FLOW

PRESSURE LOSS

MAXIMUM OPERATINGPRESSURE

END CONNECTIONS'

PIPE LENGTHOPENING REQUIRED

REGISTER

METER REGISTRATION

MATERIAL

Where fluid flow is in one direction only

Continuous Flows: 4 to 120 gpm .

(0.9 to 27 m:/h)lntermittent Flow: 160 gpm max.

(36 ms/h)

100o/o t 1.5o/o of actual thruput

950/o at 3 gpm (0.7 m3ih)

13.5 psig at 120 gpm(.9 bar at 27 mslh)

150 ps¡ (10.0 bar)

Flanged: 1t/¿" size, two bolt oval, AWWA125 pound class

Flanged: 131h" (337 mm)

Hejmetically Sealed Direct ReadingRegister with Low Flow lndicator-

100,000,000 gallons100 gallonsisweep hand revolution

10,000,000 cub¡c feer10 cubic feet/sweep hand revolution

'100,000 m¡0 1 mr/sweep hand revolut¡on

l¿laincase-BronzeMeasuring Chamber-B ronze/

Thermoplasticmoplaslic

Thrust Bearings-Tungsten CarbideMagnets-Ceramic

'Only flanged end connecÌions are availaþle

't02l4

12

Head Loss Curve

5 15 25 40 50 65 75 90 100 110 120

RATE OF FLOW_U S. GALLONS/MINUTE(wrTH RESTFtCT|ON)

F !01zU 1oo

o-* ggIòsa

ir97?s6

t-(n "'JUoÀ<U'i9

9520 30 40 50 75 1oo

FATE OF FLOW_U.S, GALLONS/MINUTE

Accurary Curve

Slra¡ghteningVane Assembly

Directionof Flow

F-Bolt Ci¡cle

G-No. of BoltsH-Size of Eolts

NOTE: lFor continuous ffows; '160 GPM (36m3/h) maximum for intermittent flows

Sealed Register

Adjusting Vane

Maincase

MeasuringAssemblyChamber

Flow Tube Face Plate Assembly

{\

Meterand Pipe

Size

Normal OperatingRange GPM

Minimum Maximum

DimensionsNet

WeightShippingWeightConnections A B c D E F G H

11/2"DN 40mm

40.9m¡/h

120f27mtlh13" Flanged

13" 6Yz" '/16 o' Zs/tø" 4 2 '/a 24 lbs. 29 lbs"330mm 165mm 24mm 153mm 59mm 102mm 2 16mm 10.9 kg 13.2 kq

d pressure tested orior loIo insure valid registrationors should be considered

1 Do not install check valves or pressure reducing devices upstreamof the meter.

2. Externally weighted check valves and pressure reducing devicesshould not be located closer than five (5) pipe diameters downstreamof the meter.

3 Unweighted check valves should not be located closer than three (3)p¡pe diameters downstream of the meter.4 ¡eam of the meter should only be full-open

Ives are acceptable if they are five (5) pipeream from the meter. Downstream, eitheran be used.

It ¡s recommended that a bypass p¡pe and gate valves be provided soservice will nol be interrupted duiing mainienance. A tesi tee.shouldÞe rnstailed downstream of the meter for field test¡na.

roaltttl fl|t tltt.fl¡ lt¡tata / t',,nfaC0ltUtC ,4// rltll tFt _ l!¡mt !r¡ ilt'rr

Remote systems-For use with all s¡zes of Rockwell water Metersted Meter Reading and Billing System-isremote system suitable for indoor and/oric Communications Reg¡ster (ECR) uses alhe meter and an outside remote Touchpad

power requtred

Head Pitl¡d (TR/PL) modut readwithout l¡fting the meter ¡ster,

d to the PitLid modute, is ng al¡d mounted module to read en tn

A non-remote version of the TouchRead,,' System is also available forp¡t-set meters. lt uses a data transfer modJle bu¡lt into the top of theregrster (TR version) or a simrlar module which can be later converted

to a w¡red remote, or connected to an ínterface un¡t for centralizedbilling, (the louchRead Convertible (TRC) version.)Ail versions can beread with a visual readinq device, and/or a cassettê tape or Solid Statelnterrogator/Recorder.Sell Generating Remote (GTR)ln th€ GTR remote.system a metef generates and transmits an elec-tncat putse vta a wtrecl connect¡on to a remote totalizer. The meter's9enerator unit is submersible. See data Sheet W-g93

Electronic Registerslmpulse Contact Regìsters and High Speed pickup Registers areavailable for use with Act-Pak.r lnstrr.lmenis Íor remote monJtorino andcontrol, based on flow rate and/or totalization. See data Sheet E-_11.12& E-1r16

Measutement and Flow Conlrol Oiv¡sion400 N Lexrngton AvePiilsburqh. PA 15208ll ßË1"î¡q["",

Neotune Wãter Division

,r. ',

Features

NOUI.ST¡IED REGISTER> Magnetic drive> Low torque registration> Straight reading, large numerals> Glass lens for legibility> No fogging> lnline serviceabiliÇ> Tamperproof seal design

CAST BRONZE MAINCASE> Durable, corrosion resistant> Proven lifetime material> Lightweight> Compact size, easy to handle

TURBINE MEASURING ELEMENT> Widest flow ranges available at 100

t1.50/o accuracy> Excellent low flow sensivity> Direct coupling of rotor to gear train

prs/enb sl¡ppage and assures accurateregistration

> I nterchangeable measuring element> I n-line serviceability> Stainless steelcalibration vane

terlorr-nance

Neotune Turbine water meters offerhe widest flow range of any turbine meterson the market. All Neotune ïurbine water

meters meet or exceed the latest perfor-mance and accuracy requirements ofAM/VA and maximum continuous flowrates may be exceeded by as much as250/o tor i nterm ittent per¡ods.

ConstructionNeotune Turbine water meters consist

of a rugged bronze maincase, an AWWAClass ll turbine measuring element and aroll-seaied register.

The bronze maincase iscorrosion resis-tant, lightweight and compact. lnlet andoutlet connections are flanged. Neptunestrainers are available to orevent debrisfrom entering the meter, and to reducethe effects of uneven water flow due toupstream piping variations.

The Unitized Measuring Element(U.M,E.) allows for quick, easy, in-lineinterchangeability. Water volume is mea-sured accurately at all flows by a speciallydesigned assembly. Exclusive dual out-board graphite bearings provide equalizedrotor loading for accuracy over a broadflow range. The thrust compensated rotorconfigurat¡on relieves pressure on thethrust bearings which minimizes wear andprovides sustained accuracy over an ex-tended operating life. Direct coupling ofthe rotor to the gear kain eliminates

NeptuneTurbine

Neotune Turbine MeterSIZES 11/z' ,2" ,3" , 4' ,6" , B' , 10"

revenue loss due to slippage during faststarts and line surges. A stainless steelcalibration vane allows in-field calibrationof the U.M.E. to lengthen service life andto assure accurate registration.

The roll-sealed register eliminates leak-ing and fogging. A magnetic drive couplesthe register with the measuring element.All Neptune Turbines can accommodatedirect reading registers, or remote readingregisters such as Neptune's ARB(Automatic Reading and Billing) Systemand the Pulser-R M Visual Remote System,ïricon/S Batch ControlSystem, &Tricon/E Electronic Pulse Unit.

Warrantv andN /.¡irrlnrrrvrd rf ìLel' ìat ìue

Neptune provides a limited warranty withrespect to its Turbine meters for perfor-mance, materials, and workmanship.Neptune further offers an optional post-warranty "Flevenue and Asset Main-tenance" prograî for extended service life.

When desired, owner maintenance is

easily accomplished by in-line replacementof major components.

Schlumberger

Neotune \ åter Division

APPLICATIONCold r¡¡ater measurement of flow ín one

direction.

MAXIMUM OPERATING PRESSURE150 psi(1ffia kPa)

REGISTERDirect reading, center sr¡¡eep, roll-sealed,

magnetic drive, with lowflow indicator.

MEASURING ELEMENTAMIVA Class I I Turbine, duaj suspension.

stzEs1V2" -1Ot'

UNITS OF MEASUREU.S. GallonslmperialGallonsCubic FeetCubic Metres

REGISTERTYPESRemote Reading System Options.

ARBPulser-RMTricon/STricon/E

COMPANION FLANGES1t/zu & 2" (Oval) Bronze or cast iron3' ,4" & 6" Bronze or cast iron8' & 10' Cast iron

STRAINERS2" -6" Bronze8" & 10' Cast iron

'Contact faclory for performance spec¡fications.

REGIONAL SALES andSERVICE OFFICES. NORTHEAST: 175 Derby St., Suite 8, Hingham,MA 02043, (617) 749-5080 . MIDWEST: 14700Farmington Rd., Lir,onia, Ml 48154, (313) 421-3065. SOUTHEAST: Hwy 229 South, Tallassee, AL36078, (205) 283-6555 . SOUTHWEST: 14285Midway Rd , Suite 170, Dallas, TX 75244,(214) 404-8251 . WEST: 1 1 725 Willake St , SanlaFe Springs, CA 90670, (2131948-4428. CUSTOMER SERVICE: 1.800.645-1892CANADIAN SALES: . Neptune MeasurementDrvrs¡on, 7275 M'bst Cred¡t Ave , ¡/¡ssrssauga.Onrario, LSN 5M9, (4 r 6) 858-421 1 ,

FAX (4 1 6) 858-0428

(9 Copynght 1989 Schlumlærger lndustnes, lnc

(OPERATI NG CHARACTERISTICS

MeterSize

Normal Operating Range@ IOOEí Accuracy(t 1.5%)

AWWAStandard

1Vr" 4 to 160 US gpm0.91 to36.3 msih NA

2" 4 to20O US gpm0-91 to45.4ms/h

4 to 160 US gpm,9'1 to 36.3 ms/h

3" 5 to 450 US gpm1.1 to 102 ms/h

I to350 US gpm1.8 to 79.5 ms/h

4 '10 to 1,000 US gpm2.31o227 molh

15 to 630 US gpm3.4 to 143.0 mo/h

6" 20 to 2,000 US gpm4.5 to 454 ms/h

30 to 1400 US gpm6.8 to 317,9 ms/h

I' 35 to 3,500 US gpm7.9 to 795 ms/h

50 to 240O US gpm1 1.4 to 545 ma/h

10" 50 to 5,500 US gpm1 1 .4 to 1.249 mzlh

75 to3800 US gpm17.0 to 863 ms/h

REGISTRATION

Reglstratlon (per srveep hand rcvolutlon):1Vz" ,2' ,

3' ,46",8n,

10"1,000 US Gallons1,000 lmperial Gallons

100 US Gallons100 lmoerialGallons100 Cubic Feet

'10 Cubic Feet10 Cubic Metres

1 Cubic Metre

Register Capacity (6 wheel odometer):1Y2",2",

3n ,4'6n ,8"

10"1,000,000,000 US Gallons1,000,000,000 lmperial Gallons

100,000,000 US Gallons1 00,000,000 lmoerial Gallons100,000,000 Cubic Feet

10,000,000 Cubic Feet1 0,000,000 Cubic Metres

1.000,000 Cubic Metres

DIMENSIONS

MeterSize

Ain/mm

Bin/mm

cin/mm

Din/mm

Ein/mm

Fin/mm

Gin/mm

Weightlbs/kq

1Y2" 10254

6Vztoc

| ,/a

18113/q44

3/^

1941/z114

53/et.5 t

1986

2" 10254

6Vz 7s/a194

21/a54

l1/

2141/z114

5s/ø143

20Y. I

12,lñq 73/a

187103/a264

33/¿95

s/a

to6

1527Vz191

4018.1

1Á

35683/s¿ t,)

1 15/s295

4Vz114

3/t

19I '/2191

9229

5223.6

6" 18457

11Vz¿J¿

141/a,l(O 51/z140

.l

259Vz241

11

279ltJ

52.28" 2Q

5Uö13

JJU16Ve410

63/t171

| ,/E

¿Y1 13/q

298I J'/2J4J

19588.4

10" 26oou

tc381

11s/a473

I203

1Vq32

1 4V¿JO¿

to406

275t¿+ I

f

' Nole: 1 72 " & 2" Conneclions are oval3"-10" Connections are round per ANSI 816 1 Class 125

Turbine 1/89 15K

+tersPRODUCTS. INC.

FEATURES

Patented Retro-Thrusto design forbetter accuracy, long life.

Internal Strainer

Thmper-proof, moistureresistant register.

Durable, corrosion resistantbronze case.

Compact models for installationflexibility.

Modular design for easy servicing.

Accurate over a greater tempera-ture range than conventionalpiston or disc meters.

Tl¡rbine desÍgn allows sand andother small debris to pass throughthe meter without affectingoperation.

Light weight for easy installationand lower freíght/handling costs.

Flexible register clamp bandpermits positioning of register forconvenient readÍng.

AWWACTOI class I.

MugnetÍc fhive VerticalfüúineMeterSizes 3l+" -Itt -LLlz" -2" -3" - 4tt -6ttDESCRIPTION

The Hersey Model MVR series Magnebic Drive Vertical Thrbine Meter is

al to maintain, both the register a¡d interior componentsc ut removing the meter from the line. MVR rneasuringc urately in temperatures up to lB0.,F and'a¡e unaffectidby sand and olher small debris that may jam o[her mebers.

OPERATIONIn normal operation, the polypmpylene rotor is the only moving part of the

MVR exposed to water. Hersey's exclusive RetroThrust@ design assures maxi-mum operating life by bearing at highflow rates. At low flow bearing floatsagainst the sapphire b

The all bronze case houses a magnetically-driven register with center sweephand, straight reading indicating either cubic feet, cubic metr€s, or gallons.

APPLICATIONThe MVR can be used for any courmercial or residential installation where

space is tight, where flexibility is needed to meet required flow ranges, wherewater temperatu¡es are elevated between 80'F and 130"n or where sand parti-cles or other small debris mav be a problem.

lVlodel lvlvtt

ModelMVR

IVIATERIATS AAID SPE CIFIC,AI IONSMetercase. ...bronze3l¿'-6'Measuring chambe¡ . . plastic 3lt"-6'Rotor. .plasticsl¿'-6uRegister ...........plasticRegister box and lid . . . . . plastic 3l¿"-4"i bronze - 6"Casing bolts . . stainless steelSbrainer .....plasticsl¿"-lrlz"istainless steel2"-6"End detail 3/¿": externa-l straight pipe

bh¡eads (only); compact 1/2,

slt, or l" spuds; standa¡d 3/¿

or 1" spuds; bronze metercouplings available

1": external straight pipeth¡eads (only¡; compact andsüanda¡d L" or ttl¿" spuds;bronze meter couplingsavailable.

11/e": internal taper pipe th¡eads(onÌy); standa¡d or compactlVz'NPT flanged wiüh castiron or bronze twobolt ovalfl-g"t twobolt comP¡nig¡flanges cast iron or bronze' available.

End detail . 2": internal taper threads (only);standa¡d or compact 2'NPlÌflanged wilh cast iron orbronze twobolt oval flaage;two-bolt companion flangescasü iron or bronze available.

3",4",6"i End flanges ANSI class 150standa¡d. Companion fl anges(optional) ANSI class 125,cast i¡on or ANSI class 150,bronze.

Maximum rated working pressure . . 150 psiTbmperaturerange . ....33"-130"F

NOTE: Hersey Magnetic Drive Vertical Tb¡bine water meiers comply withthe latest standards adopted by the American Water Works AssociationStanda¡d C-701. Cold Water Meters.

FLOW CHARACTERISTICSAccuracy ...100Vo + l"íVo of actualinputNomal Operating FIow RangeMVRSOMVRsOMVR1OOMVR160MVR350MVR650MVR1SOO . . 15.0 - 1300 gpm

1.0 - 30 gpm1.5 - 50 gpm

2.0 - 100 gpm3.0 - 160 gpm4.0 - 350 gpm5.0 - 650 gpm

Low FlowMVRsOMVRsOMVR1OOMVRl60MVR350MVR650MVR1300

PERFORMANCE lPerformance cr.rrves are typical only and not a guarantee of performance)

-ØI

t¡¡

)tt)U)r,¡J

lJ-

U'(t,oJ

Accuracy-3l¿" and,Lt'

98

vo

94

Y¿

90

88

Head Loss -3l¿" and l"

Magnetic Drive Vertica! Tl¡rbine Meter

Accuracy -7rlz" and2"

PERFORMANCE (Performance curves are typical only and not a guarantee of performance)a7 Accuracv -lrlz" and2" l.r^^) t ^-- 11t-,t -- t qn

oluuJFdtlJ

F-zl,,lJ()uJ

BAÏE OF FLOW- U,S. GPM

Accuracy -3" and 4"FATE OF FLOW-U S, GPfuT

Head Loss - 3" and,4',

JU)

Ir.¡Jfr

ØU)uJEo-lJ-

U)U)

I1

ôuUJF(n

TIJÍFzul(J

UJ

Head Loss - Ulz" and.Z"

120 140 160

RATE OF FLOW-U.S GPM

Accuracy - 6"

02009896943¿

9088oo

400RATE OF FLOW_ U.S GPM

RATE OF FLOW-U,S. GPÀ/

Head Loss - 6"1

(n

¡1t¡J

¡1

UJ

tl-

U'U) 4

Ð

WEIGHTSsrzE(ilodel)

3lt"lMvR 30ì lMvR s0ì

11n"lMvR r00ì lMvR 160r

3"(MVR 3s0) lMvR 650ì

6nfMvR 1300ìNel-Wt. Standa¡d. Lbs. 5 10 38 68 f40Net Wt. Compact, Lbs. 4 7 10 16

r.Emare, Los.11 l7

Net Wt. 2.bott. Lbs.13 20

Gross Wt. Standard, Lbs. ô 't2 4A 70 170Gross Wt. Compact, Lbs. 5 I '11 t8Gross Vt/t. Female. Lbs.

12 19

14 22

Model MVR

ÐIMENSIONS 3l¿" andl"slzElModell

1/tu

tMvR 30ì IMVR SOI

Maximum Width 31t' 4'Ut"

A (Standard) I 1islt"A (Comoact) 7112n I'B 1lql6" 24a"

5112n

DIMENSIONS lttz" and,Z"

stzElModelì

1íh"(MVF 1001

2"lMvR 160ì

Maximum Widlh (female) 4qb" 5q¡"

Maximum W¡dth (2-bolt) 5qb' 51fio"A (Standard-female) 'lzsls' 15114',

A (Compact) ox 10112"

A (2-bott) 13n 17n

I zEs" 3

c 54¿' 6114"

Compact

Z-Bolt Flanged

c

DIMENSIONS 3,,, 4,, and, 6,,

srzE(Model) tMvR 350ì

4"tMvR 650t

6"MVR 1300'

Maximum Width Vlsn 94¿" 'l24an

12' 14', 1g',

B 348" 4qa" 6n

87ha" 9Ta" 12eha"

.:¡!i

-

llow Retro-Thrrusttll

reduces wear Dy morethan 5070 .. .

Available as a standard feature ofHersey MHR and MVR T\rrbineMebers, RetroThrusto design provides long t¡ouble-f¡ee service incondi tions that traditional meterscould not handle.

Hersey's patented HelreThrust@rotor action contribut¿s to longermeter life by divirìing wear betweentwo bearing points. At low flowrates the rotor's tungsten ca¡bidethrust bearing floats ageins¿ ¿þs

Low Flow Medium Flow High Flow

sapphire bearing in_the bronzemeter casing. As flow rates increase,the rotor moves upstream and awayfrom the lhrust bearing. At highflow rat¿s bhe rotor's slainless steelshaft rests'gently on the upstreamsapphire bhrus t bearing, virüuallyeliminating wear.

Determining FlowCharacteristics

Determining the flow cha¡acleris-lics ofyour instailation is the firstand most important step in specify-ing a water meter.

Besides the flow rate, it is essen-lial to consider water pressure,volume and any significant fluctua-tion in flow rate, watcr temperatu¡eor any other unique installationrequirement that impacts metersize, placement or capacity.

Gen-a-readerú

Remote Rcading SystemMosb Hersey lVater Meters offer

a remote reading system option, theGen-a-reader@. Sealed in a sbrongpolycarbonate housing, the Gen-a-reader features a highly legible andcompact outside counter for preciseand easy readings. Self-contained,complete with int¿rnal generatingsystem, there is no need for ex-ternal power. An optional glass orbronze water-tighü enclosure isavailable.

Dimensional checks on the MVR top case are programmed for accuracy onelectronic coordinate measuring equipment.

Hydraul.ic testing of large fi¡eline meters, l.ike this ModelMFM II, before shipmeît. ',

APPENDIX C

INFOR!,TAIION ON PACIFIC NORTTIWEST EXPERIENCE

Re:

KERR WOOD LEIDAL ASSOCIATES LTD,CONSULTING EA/G/NEEBS

1 39 WEST 16th STREET. NORTH VANCOUVER, B.C. V7M 1T3 PHONE 985.5361

September 12, 1989.

FAX NO.985-3705

DISTRICT WATER SUPPLIES

Mr. 1. W. Van der Gulik, p.Eng. rPro j ect [f anagêE ,Ministry of Agricult,ure and Fisheries,101 33832 South Fraser Way,Abbotsford, B.C. V2S 2C5

Dear Sir:

DEMÀND MANAGEMENT OF IRRIGÀTIONFlowmetering and SchedulingPacif ic Nort,hwest ExperienceOur File No. 376.001

Further to our discussion on September 6, l9g9r rirê forward here_with a copy of the Record of phone Call to each of the follow-ing:

The Da1les Irrigation District, OregonTualatin_ValIey Irrigation District, OregonLake Chelan Reclamation District, I,Iashinqtonus Bureau of Reclamation, rdaho regional officeus Bureau of Reclamation, colorado headquarters

Key points to note are identified as follows:only a handful of Pacific Northwest irrigation districtsmeter the service connections, mainly becaule the USBR re-quired it in conjunction with system reconstructionunlike B.C., irrigation syst,ems do not serve domestic users

although each district has an irrigat.ion allotment, flow con-trol devices are not used; thus, extremely high rates of un-controlred water use can/do result in ',metèr b-urnout"

met.ers are used mainly for bilring purposes as werl as forregurating water use during peak- oLmaio periods (i.e. tomatch pumping capacity)

2

Mr. T. IÎ. Van der Gulik, p.Eng. ¡

Page 2,September L2, 1989.

Lake cheran is the only district with turbine meter experi-ence that may be directly applicable to the B.c. situatiónthe usBR is currently putting a considerable research anddevelopment effort into a high t.ech system called AGRTMET forirrigation scheduling; there may be än opportunity for B.c.involvement

similar to Ehe B.C. situation, water is cheap such that thereis little incentive to conserve

In conclusion, the foregoing research effort has been invaluablein providing an improved insight inÈo metering experience else-where. This insight has reinforced the earrier imp-ression (basedon the literature search) tnat our st,udy is indeed breaking neh,ground

Yours very truly,KERR !,IOOD LEIDAL ÀSSOCIATES LTD.

K.A. Stephens, P. Eng.Project, Engineer

KAS/mpEnc1s.

KERR WOOD LEIDAL ASSOCIATES LTD.

DATE: September 5, 1989

TO: Our File No. 376.001

FROM: Kim A. Stephens, p.Eng.

RE: MAF IRRTGATION STUDYThe Dalles lrrigaÈion DistrictExperi.ence with Flowméterino

KERR WOOD LEIDAL ASSOCIATES LTD.CONSULT//VG ENG/NEEFS

139 WEST 16th SIREET, NORTH VANCOUVER, B.C V7M 1T3 PHONE 985.5361 FAX NO. 985-3705

RECORD OF PHONE CALL

Based on a lead provided by BrianUSBR office in Boise, Idaho, whophone number (1-503-296-3366) forrict in Oregon.

Harvey of the VID, I phoned thein turn provided me wiÈfr theThe Dalles lrrigation Dist-

Key points noted in discussion are summarized as forlows:' Contact Names

Don Dean, Operations ManagerUna-Mae Harmon, secretary (25 yr. employee)

Description of System

located 85 miles east of portlandpump directly from Columbia RiverI pump stationspressurized system; buried distribution mainssystem constructed by USBR in 1965good water quality

Itater Users

6000 acres of orchards225 water userslargest farm is 350 acres, with the average size in therange 20 to 50 acres

2

Page 2 |September 5, 1989

RECORD OF PHONE CALL - continued

' Irrigation Connections

PARCEL SIZE( acres )

CONNECTION SIZE( inches )

15 to 25

25 to 40

over 40

3

4

6

30 connections e 1-inch serve residential properties(i.e. less than l-acre in size)

' Irrigation Àllotment

4.L USgpm/acremost'take 6 USgprn until supply situation gets seriousunder some conditions wilI a1low 12 USgpm/acreno flow control devices except for problem individuals

' Need for Flowmetering

monitor erater use in order to match pumping capacityenables them to identify who is exceeding the waterallotmentthe water allotment not based on water conservationonly one other Oregon irrigation district meters wateruse

' Types of lleters

mostly Badger propeller meters (note: some kind of non- :

standard unit)have some Badger turbine meters that have been installedfor about 5 yearsthe majority of the meters are in the 3u to 6" size range ,


3

Page 3,September 5, 1989

RECORD OF PHONE CALL continued

Need for Ì,taintenance

read meters every 6 weeks and complete minor servicing atthe same timeoverhaul propeller meters every lO-yearsturbine meters have not yet, needed maintenance; butthinks 1O-years wilI still be applicableproper sizing has a direct rerationship to repair inter-va1drain pipelines and leave meters dry over the wintermonths

lleter Installationuse concrete pipe sections (e.g. 54u ø for 3,, Ø neter)typically 3 ft. ro 7 fL. depthdirect reading of meter registerdisagrees with burying metérs; in the long-term, it paysto have accessof interest, the meter chamber accounts for harf the costof a service connection

Rate Schedule

in effect for 15 yearshas worked welIwhile not specifically geared todoes include a penalty clause forbasic allotment is 2 acre-fE/acre

waLer conservat.ion itexcessive water usewith penalties asfollows:

' first 6-inches over the 2' anything additional

acre-ft 1409 charge180å charge

KERR WOOD LEIDAL ASSOCTATES LTD.

.- -a+1: *! r? â

KERR WOOD LEIDAL ASSOCIATES LTD.CONSULT/NG ENG/NEEFS

139 WEST 16th STREET, NORTH VANCOUVER, BC VTIVI 1T3 PHONE 985-5361 FAX NO.985-3705

RECORD OF PEONE CALL

DATE: Sept,ember 6, 1989


FROM: Kim A. Stephens, P.Eng.

RE: I,IAF IRRIGATION STUDY. Tualatin Va1ley Irrigation District

Experience with Flowmetering

Based on information provided by Don Dean of the Dalles IrrigationDist,rict, I conÈacted Èhe Tualatin Valley lrrigation District(telepone: 1-503-357-3118) in Oregon. Key points noted in dis-cussion are summarized as follows:

' Contact Nenes

CaI Kramer, ManagerTom Vanderplaat, Assistant Manager (who spoke to me)

' Description of System

located 25 miles south of Portlandpump directly from Tualatin River, a tributary of theWilliamet.t,e River, to a storage reservoir (Z acre-f t)pressurized distribution system (155 psi); buried distri-bution mains (6-inch to 60-inch)in addition, indívidual farms pump directly from theriverrelatively clean water because of screening systemsystem constructed by USBR

' Iùater Users

District coverage is 12 square milesirrigation system only; no domestic connections10r000 acres irrigated (wheat, clover, berries, andnurseries )

325 water usersparcels typically less than 100 acres

.... 2



Irrigation Connections

mostly 3/4/6-inchmaximum is 12-inch

Irrigation AllotmenÈ

6.1 USgpmr/acre (versus 5.6 under State 1aw)no flow control devices

Need for Flowmetering

system never pushed to limiti so no need for enforcemencre excessive water usemainly for billing purposesalso for scheduling purposessince system vulnerable to waterhammer because of Acpipe, water users regulate ,,of.f./on raÈes,' for valvesbased on instanÈaneous flowportable punps that serve individual farms from the sameriver source include metersi the meter records provide abasis for flow release from storaqe

Types of l¡teters

almost all are Micrometer meters (propeller c/w magneticdrive )

installed by USBR 15 years agohave some Rockwell turbine meters (1.5-inch and 2-inch)use sparling propeller meters on the individual riversystems ( 125 )

Need for ltaintenance

read meters each fallfix meter if broken; almosL 30/yrno regurar maintenance or calibration/testing programonry test meter if there is a question re water usewater users will generally report a broken meter becausethey need the instantaneous flow rates for on-farm Þur-posesmeters break due to:o excessive flow rates (i.e. no flow control)" unusual conditions (e.g. debris in line)


3


RECORD OF PHONE CÀLL - continued

' Need for l¡laintenance - continued

have good success as long as water quality OKMicrometer meters are cable driven; these cables breakanother problem is breakage of the register glass (i.e.due to above ground installation??)the sparling meters are old (20 yrs) and have a historyof problems, probably due to being moved aroundhave had some problems with the Rockwell meters due tosand plugging the internal strainerdrain lines and leave meters dry over the winter months

lleter Installation

meter is part of the service connection (i.e.',turnout")installed permanently above ground at an elbowdistribution main typícally buried 2 fL ta 3 ftburied shutoff valve and drain valveriser pipe goes through a concrete paduser controlLed valve at the end of the connection

' Rate Schedule

basic charge is $25/acre-f.t/yr for the first acre-ft , ,with penalties as follows:

' first 6-inches over 1 acre-ft charged at the same rate((i.e. $2í/acre-fE) l

' for next 6-inchesr ân additional 202 charge (i.e. ,g5lacre-ft )

' after that, charge doubles ( i.e. $S}/acre-ft) ,

water is too cheap to encourage conservationcost not signif icant relative to cost of crop production

,,

' Scheduling i

using USBR computer program as a water conservation mea- jsure lneutron probes provide soil moisture databased on crop and planting date rnot a lot of participation

lannual rainfall is 42-inches; sor not water short


KERR WOOD LEIDAL ASSOCIATES LTD.CONSULTA/G EA/G/NEERS

139 WEST 16th STREET, NORTH VANCOUVER, B.C. V7M .IT3 PHONE 985-5361 FAX NO 985-3705

RECORD OF PEONE CALL


' TO: Our File No. 376.001

FROl,l: Kim A. Stephens , p. Eng.

RE: MAF IRRIGATION SÎUDYUS Bureau of ReclamationExperience wiÈh Flowmeterinq and Schedulinq

Based on information provided by Tom Vanderplaat of Tualatin' vq1l"y rrrigation DistricÈ, I contacted Monte McVay of the USBRof f ice in Boise, Idaho (TeI. 1-208-334-1I76') . Key- points not,ed indicussion are summarized as follows:

' USBR Àddress

Irrigation O & M

550 !{est Fort St.Box 043Boise, Idaho 83724

' ttSBR Requirements for Flowmetering

USBR funded projects must have meters or orifice platesmostly to identify what is being usedrelates to SLate water rights rather than conservation

' Irrigation Districts !ùhich lteterOregon: The Dalles I.D.

Tualatin Va1ley I.D.!{ashington: Lake Che1an Recl_amation District

Orov i I 1e-TonasketYakima Tieton I.D. (Contact: Rick Dieker

Asst. Mgr)

Idaho: Lewiston Orchard I.D.' supplies metered water to a suburb of Lewis-

ton; irrigation water may not be metered' contact name: Stan French (TeI. 2Og-746-9235)

2


RECORD OF PHONE CALL . cOntinued

' Scheduling Technology

state-of-the-art computer technology has been developedusing weather based ET data plus soil moisture monitoringto demonstrate water saving for 26 utilitiesmost comprehensive attempt ever undertaken in USA30 saÈellite weather stations throughout Pacific North-westi "downlink" to Boise; called AGRIMETwill forward informationcomputer program is broadbased; applicable to areas of10r000 acres or moreimplemented this yeaf in Medford' Oregon

' Ifater Conservation

no incentive for conservationwater is cheapi farmers have gotten used to it; difficultto make changes' but competing uses for water reàource are beginning t,obring about changesUSBR produces annual "lrlater Conservation l,lanagement" re-ports which compile experiences of all the regionaloff iceshe will forward a copy to me

' l{eter lypes

have found that Micrometer meters not good for hiqh vol-umeshave replaced them with Kent meters from Englandbetter performancei refurbish every few yearsrapid velocity changes is the reported cause of problemsDenver office has done some research; will have someonecontact me with information

' Lake Chelan Experience

contact name: Mr. Shannon McDaniel (Te1. 1-509-687-3548)USBR case study on metering and schedulingpurpose r¡/as to demonstrate water savings due to schedul-ing and controlling allotmentsystem constructed in I974t pumps clean lake waterserves apple orchards


3


RECORD OF PHONE CALL continuedo Lake Chelan Experience - continued

water conservation st,udy in LggI/92

' irrigation schedule for each grower' 25'neutron probes' weather station and computer program' estimated water use

allotment is 6.9 usgpm/acre versus 9.9 for oroville whichhas similar climate (note: orovirle considered exces-sive)now have Kent, metershe will forward a copy of report to me


. -Ii4<H

KERR WOOD LEIDAL ASSOCIATES LTD.CONSULT/NG ENG/TVEERS

139 WEST 16th STREET. NORTH VANCOUVER, B.C. V7M 1T3 PHONE 985-5361 FAX NO.985-3705

RECORD OF PHONE CALL



FROM: Kim A. Stephens, p.Eng.

RE: MAF IRRIGATION STUDYLake Chelan Reclamation DistrictExperience with Flowmeterino

Based on information provided by Monte Mcvay of the usBR, r con-tacted the Lake Chelan Reclanation DistrÍct (Tel. l-5O9-697-3548) in lrtashington. Key points noted in dicussion are summarizedas follows:

Contact l-" and Àddress

Shanon McDanielLake Chelan Reclamation DistrictP.O. Box JManson, Wash. 9883I

Description of System

pump from lake$20 M system constructed by USBR In Ig74pressurized distribution system; 5 rifts cover an rr0o ftelevat,ion rangeirrigation only; domestic system is completely separateexcellent water qualitypumps on by April 10th, mainly to provide water for frostprotectionby May 10t.h, system demand approaching 509 of capacity

I{ater Users

6336 acres irrigated620 turnouts, but only 350 customersonly 40 land users have parcels larger than 40 acrestypical farm is 12 acres

2

Page 2,September 7, I9B9


' Irrigatíon Connections

2/3/4/6-inch

PARCEL SIZE( acres )

CONNECTION SIZE( inches )

up to 2.5

2.5 to 7 .5

7.6 t,o 13.5

13.6 to 20

over 2Q

1

2

3

4

6

' Irrigation Allotment

allotment is 6.9 USgpm/acreno flow control devicesheavy sandy loam to light sandy loam soilduring non-peak periods, farmers allowed to use up tometer capacity

' Need for Flowmetering

need information for effective system operation (i.e.important to know what I s happening in order to matchpumping capacity)use meters for rationing water supply during peak demandperiods (i.e. July); will instruct farmers to cutbackmetering has resulted in water savings (i.e. from 18r000to 14,000 acre-fE/yr)took 3 years to educate publicon an individual basis, can demonstrate potential for $sav ings


3

Page 3,September 7 | 1989

RECORD OF PHONE CALL cont inued

Tlpes of t¡feters

Micrometers lasted l-year and were repraced by Kent tur-bine meters

Need for tlaintenance

read meters 3 times per yeari at same time inspect forproblemseach winter, remove and check L/3 of meters (note: tokeep crew busy)spend $250Q/yr on maintenance, including partstypical repairs involve repracement of Éeãrings andirnpellersproblem is 'met,er burnoutn due to excessive flow rates(i.e. because nó flow control devices); teflon bearingswear on shaft

I'leter Installation

shutoff valve, pRV anO meter installed inmeter aluminum can90-degree elbow outside can, then verticalcomplete wit,h 90-degree elbow and controlthe District owns/operates the valve15 minutes/yr for winterization

l{eter Reading Schedule

June, August lstr end of season

Rate Schedule

42-inch dia-

riser pipevalve

total assessment is $58/acre for 3 acre-fL/yrnext 6-inches: same unit charge ( i . e. $59,2ãc re/36-inches )over 42 inches: 120t x $58/acre/36-inchesexcess revenues more than cover meter maintenance

Scheduling

USBR tried it. in the 1970'shaven't followed throughtoo many individualistsno serious scheduling yet




FROÞÍ: Kim A. Stephens, p.Eng.

RE: MAF TRRIGATION STUDYUS Bureau of Reclamation

Mr. Russ Dodge of the uSBRts Denver headquarters contacted me inresponse to a request from Monte McKay of ttre Boise regional "ii-ice- He then turned me over to Harry Huizenga (Tei. 1-303-236-9198) who is with the commercial Equipnent Gioup. The dutiesof this grgup include preparation of -tectrnical Ëpecif ications formeter-lupply contracts. Key points not,ed in disèussion are risiã¿as follows:

3-inches is the smallest size meter used by the usBR, with. mosE meters in the size range 4 to l4_inch

USBR has done no research on turbine meters

the USBR does not have a specification for turbine metersthe usBR.favours propeller meters (i.e. Micrometer, waterSpecialties) out of habitLake Chelan is Èhe only irrigation district that uses turbinemeters

The bottomline is that the USBR has little experience relevant toour information needs. Mr. Huizenga suggesteã contacting indivildual state governments to determiné wha€ information thei mighthave. He also suggested contacting:Dave LenciÍ'Iestern Regional ManagerBadger Meters Inc.Napa, California (TeI. I-707-253-2556)

Mr. Lenci is considered to be quite knowledgeable.

KERR WOOD LEIDAL ASSOCIATES LTD.COA/SULI/NG ENG/NEEFS

t 39 WEST 16th STREET, NORTH VANCOUVER, B.C. V7À/ 1T3 PHONE 985.5361 FAX NO 985-3705

RECORD OF PHONE CÀLL

Documents

IIII{ISTRY OF A6RICULTURE AIID - OBWB