8 Econodrain Hydraulic Data Booklet

7/28/2019 8 Econodrain Hydraulic Data Booklet

1/16

#8 EconoDrain

and EconoDrain

PT-3

Hydraulic Data

We drain your site, not your budget!

MultiDrain Systems, Inc.

Copyright July 2008 MultiDrain Systems, Inc.


2/16

System and Hydraulic Data: # 8 EconoDrain and #8

EconoDrain PT-3EconoDrain Series EPS Trench Forming SystemBy MultiDrain Systems, Inc.

Thank you for using our family of EPS Trench Forming products in your current and futureprojects. Our trench systems are engineered to conform to material and project specific

specifications. MultiDrain Systems is dedicated to continuous product improvement with aneye to fit, form and function and the ever important cost \ benefit analysis.

The following system and hydraulic data provides an overview of the following information:

o System Grating Inflow Table and Graphical Representation Material Specification Grating Load Capability Specification Grating Dimensions Grate Open Area

o Trench Flow Capacity Table and Graphical Representation Trench Flow Capacity at 0.5% and 1.0% slope Trench Section Depths at 0.5% and 1.0% slope Trench Section Storage Capacity at 0.5% and 1.0% trench slope Adjustment factors, Fk, used to consider site slope and its effect upon

trench capacity

Adjustment factor, Fk, sample calculationo Outlet Pipe Discharge Flow Graphical Representation

PVC Outlet Pipe DischargeThis information generally answers 99% of the project inquiries satisfactorily. If you needmore information, we will be happy to address your questions.

Please do not hesitate to let us know how we may serve your needs better. Thank you againfor using MultiDrain Systems family of products.

Our contact information is:


P.O. Box 88Barium Springs, NC 28010

Toll Free: (800) 433-1119 or (704) 508-1010

Fax: (704) 508-1011e-mail: [email protected]

You may view all of our product information at www.multidrainsystems.com


3/16

#8EconoDrain

StandardCastDuctileGratin

g

GrateP

artNo.:

EG10241DIA

[Finish:Black(Std.)

]

EG10241DIAG

[Finish:Galvanized]

GrateLength:

2ft.

(24in.)

GrateOp

enArea:

71%

GrateOpenArea(sq.

in.

/l.ft)

85.4

Inflowper

GrateFrom

InflowperGrate

From

InflowperGrateFrom

InflowperGrateFrom

Head(in)

BothSidesofTrench

BothSidesofTr

ench

One(1)SideOnly

One(1)SideOnly

EG10241DIA(gpm)

EG10241DIA(cfs)

EG10241DIA(gpm)

EG10241DIA(cfs)

1/4"

17

0.04

8

0.02

1/2"

47

0.11

24

0.05

1"

1

34

0.30

67

0.15

2"

3

79

0.84

190

0.42

3"

7

41

1.65

370

0.83

4-1/2"

1,388

3.09

694

1.55

6"

1,812

4.04

1,047

2.33

7-1/2"

2,034

4.53

9-1/2"

2,278

5.08

11"

2,404

5.36

12"

2,563

5.71

Note:

A.Inflowiscalculatedutilizingweirandorificeequations.Head(ft.)isthedepthofw

aterabovethegratesurface.

B.WeirFlow

ismodifiedtouseonlythelengthp

erimeter.Widthperimetersarenotconsideredsincetrenchgratesarenormally

laidendtoendandnotutilizedasastandalonegrating.

C.CalculatedInflowisbasedonfluidflowfrom

bothdirections(weir)andisstatedf

oronegratelength.

D.Noallowa

nceismadefordebriscloggingthegrate.

E.WeirFlow

toTransitionalat0.36'head-Flow

fromBothSides.

F.Transition

altoOrificeflowat0.54'head-FlowfromBothSides.

G.Diminishedcalculatedflowaccuraciesatheadslessthan0.1'.

H.TrenchCh

annelflowsfrom0.57cfs(255gpm)to4.65cfs(2,089gpm)persectiona

t0.5%s

lope[0.5"rise/96"run].

I.0.03cfs(13.0gpm)individualgratinginflowm

aximizestrenchwithopenend,flow

ingfullwitha320l.ft.run.

J.MultiplyInflow,statedincfsorgpm,times4t

oestimategrateinflowper8'longsection.

EG10241DIAInflow


4/16

#8StandardEconoDrainDu

ctileGratingInflow,(gpm)-From

BothSidesofGrate

0500

1,0

00

1,5

00

2,0

00

2,5

00

3,0

00

1/4"

1/2"

1"

2"

3"

4-1/2"

6"

7-1/2"

9-1/2"

11"

12"

HeadofWaterAboveGrating,(inches)

FluidInflow,(gallonsperminute)

EG10241DIA(gpm)

#8S

tandardEconoDrainGrate:EG

10241DIASeries

Material:ASTMA53665-45-12D

uctileIron

LoadSpecification:AASHTOM3

06-04HS25

GrateDimensions:1.5"x10"x24"

GrateOpenArea:71%

GrateOpenArea:170.8sq.in.

EG10241DIAInflow


5/16

#8

EconoDrainADACastDuctileGrating

GratePartNo.:

EG10161DIADAC

[Finish:Black(Std.)]

EG10161DIADACG

[Finish:Galvanized]

GrateLeng

th:

1.33feet(16in.)

GrateOpenArea:

33.1%

GrateOpenArea(sq.in./l.ft)

39.7

InflowperGrate

From

InflowperGrateFrom

InflowperGrateFrom

InflowperGrateFrom

Head(in)

BothSidesofTrench

BothSidesofTrench

One(1)SideOnly

One(1)SideOnly

EG10161DIADAC

(gpm)

EG10161DIADAC(cfs)

EG10161DIADAC(gpm)

E

G10161DIADAC(cfs)

1/4"

11

0.02

6

0.01

1/2"

32

0.07

16

0.04

1"

89

0.20

45

0.10

2"

252

0.56

126

0.28

3"

414

0.92

246

0.55

4-1/2"

511

1.14

6"

586

1.31

7-1/2"

658

1.46

9-1/2"

736

1.64

11"

777

1.73

12"

828

1.85

Note:

A.Inflowiscalculatedutilizingweirandorificeequations.Head(ft.)isthedepthofwaterabovethegratesurface.

B.WeirFlowismodifiedtouseonlythelengthperimeter.Widthperimetersarenotconsid

eredsincetrenchgratesarenormally

laidendtoendand

notutilizedasastandalonegrating.

C.CalculatedInflo

wisbasedonfluidflowfrombothd

irections(weir)andisstatedforonegratelength.

D.Noallowanceis

madefordebriscloggingthegrate.

E.WeirFlowtoTransitionalat0.16'head-Flowfrom

BothSides.

F.TransitionaltoOrificeflowat0.25'head-Flowfrom

BothSides.

G.Diminishedcalculatedflowaccuraciesatheadslessthan0.1'.

H.TrenchChannelflowsfrom0.57cfs(255gpm)to4.6

5cfs(2,089gpm)persectionat0.5%

slope[0.5"rise/96"run].

I.0.03cfs(13.0gpm)individualgratinginflowmaximizestrenchwithopenend,flowingfullwitha320l.ft.run.

J.MultiplyInflow,statedincfsorgpm,times4toestim

ategrateinflowper8'longsection.

EG10161DIADAInflow


6/16

#8EconoDrainADAD

uctileGrateInflow,(gpm)-FromB

othSidesofGrate

0100

200

300

400

500

600

700

800

900

1/4"

1/2"

1"

2"

3"

4-1/2"

6"

7-1/2"

9-1/2"

11"

12"

HeadofWaterAboveGrating(feet)


EG10161DIADAC(gpm)

EconoDrainGrateEG10161DIADA

CSeries

M

aterial:ASTMA53665-45-12DuctileIron

LoadSpecification:AASHTOM306-0

4HS25

FAAAC

150/5320-6D,Appendix3,100,000lb.ProofLoad

GrateDimension:1.5"x10"x1

6"

GrateOpenArea:33.1%


EG10161DIADAInflow


7/16

#8EconoDrainP

T-3

CastDuctileGrating

GrateP

artNo.:

EG10243DIA

[Finish:Uncoated]

EG10243DIAP

[Finish:Black]

EG10243DIAG

[Finish:Galvanized]

GrateLength:

2ft.(24in.)

GrateOp

enArea:

54%

GrateOpenArea(sq.in./l.ft)

64.7

Inflowper

GrateFrom

InflowperGrate

From

InflowperGrateFrom

InflowperGrateFrom

Head(in)

BothSidesofTrench

BothSidesofTr

ench

One(1)SideOnly

One(1)SideOnly

EG10243DIA(gpm)

EG10243DIA(cfs)

EG10243DIA(gpm)

EG10243DIA(cfs)

1/4"

17

0.0

4

8

0.0

2

1/2"

47

0.1

1

24

0.0

5

1"

1

34

0.3

0

67

0.1

5

2"

3

79

0.8

4

190

0.4

2

3"

7

41

1.6

5

370

0.8

3

4-1/2"

1,197

2.6

7

694

1.5

5

6"

1,373

3.0

6

1,0

47

2.3

3

7-1/2"

1,541

3.4

3

9-1/2"

1,726

3.8

5

11"

1,863

4.1

5

12"

1,942

4.3

3

Note:

A.

Inflowiscalculatedutilizingweirandorificeequations.Head(ft.)isthedepthofw

aterabovethegratesurface.

B.

WeirFlow

ismodifiedtouseonlythelengthp

erimeter.

Widthperimetersarenotconsideredsincetrenchgratesarenormally

laidendtoendandnotutilizedasastandalonegrating.

C.

CalculatedInflowisbasedonfluidflowfrom

bothdirections(weir)andisstatedf

oronegratelength.

D.

Noallowa

nceismadefordebriscloggingthegrate.

E.

WeirFlow

toTransitionalat0.3

5'head-Flow

fromBothSides.

F.

Transition

altoOrificeflowat0.5

'head-Flow

fromBothSides.

G.

Diminishedcalculatedflowaccuraciesatheadslessthan0.1

'.

H.

TrenchCh

annelflowsfrom0.5

7cfs(255gpm)to4.6

5cfs(2,0

89gpm)persectiona

t0.5

%s

lope[0.5

"rise/96"run].

I.0.0

3cfs(13.0gpm)individualgratinginflowm

aximizestrenchwithopenend,

flow

ingfullwitha320l.ft.run.

J.

MultiplyInflow,statedincfsorgpm,

times4t

oestimategrateinflowper8'longsection.

EG10243DIAInflow


8/16

#8EconoDrainPT-3GrateInflow,(gpm)-FromBothSide

sofGrate

0500

1,000

1,500

2,000

2,500

1/4"

1/2"

1"

2"

3"

4-1/2"

6"

7-1/2"

9-1/2"

11"

12"

H

eadofWaterAboveGrating,(inches)


EG10243DIA(gpm)

#8E

conoDrainPT-3Grate:EG10243DIASeries

Material:ASTMA53665-45-12DuctileIron

LoadSpecification:AASHTOM306-04

HS25&

FAAAC150/5320-6D,Appendix3,100,000lb

.ProofLoad&

ModifiedSpecificationfor200,0

00lb.ProofLoad

GrateDimensions:1.5"x10"x2

4"

GrateOpenArea:54%


EG10243DIAInflow


9/16


10/16

Trenc

hSlopeAdjustmentFactor,Fk

MultiDrainSystems,Inc.

SlopeAdjustmentFactor,F

k

Properevaluationoftrenchflowcapacitymusttakefinishedgradesiteslopeintoconsideration.Siteslop

eparalleltotrench

slopemayhaveapositiveor

negativeeffectontrenchflowcapacity.Regardless,itisimportanttoevaluateitseffecttoassureeitheran

adequatetrenchdepthandslopeisbeinginstalledorjusttomaximizeefficiencyandcostoftheinstalledtrenchasitrelatestothe

desireddesignflowparamete

rs.

Trenchflowcapacityshown

intheaccompanyingtableandgraphs

isdeterminedbyapplyingManningsE

quationforthestandard

EconoDraintrenchslopeof

0.5%andsurfaceroughnesscoefficientof0.013.Thetrenchsectionoutletendareaisutilizedintheequation

andtheareaoccupiedbythe

gratingorcoverisexcluded.

ApplicationoftheSlopeAdjustmentFactor,Fkisappliedaccording

toEquationA:

Q=(Fk)x(Ss+St)

1/2

(equationA)

Where:

Q

equalstrenchflowingallonsperminute(gpm)

Fk

istheslopeadjustmentfactor

fromthesystemTrenchFlowCapacitytable

Ss

isthesiteslope,feetperfeet(dimensionless)

St

isthetrenchslope,feetperfeet(dimensionless)

Example1

AstandardEconoDrain#8trenchistobeinstalledinaconcreteslabwithanadditional0.2%slopeparallelandinthediection

oftrenchflow.Thetrenchlengthis40feetandwilltraversethefulllengthoftheconcreteslab.Thedesireddesignflowcapacityatthe

endofthetrenchis900gpm.Determinethepropertrenchsizeforthegivenconditions.

Trenchsectiin0820hasatrenchflowof894gpm(1.99cfs)perTableED8HYD-01.Fivetrenchsectionswillberequiredtofulfillthe40'trenchlength

requirement.

TestthecapacityofTrenchs

ection0820byapplyingtheSlopeAdjustmentFactor,Fk:

FkfromtheTrenchFlowCap

acityTableED8HYD-01forsection

0820is:12,636

St=0.005

NOTE:gallonsp

erminute(gpm)isconvertedtocubic

feetpersecond(cfs)bydividingtheg

pmresult

Ss=0.002

by448.8

31.

Q=12,636x(0.005+0.002)1/2

Q=1057gpm

Theresultsyield

a17.4%flowcapacityincreasedueto

additionalsiteslop.


11/16

Trenc

hSlopeAdjustmentFactor,Fk

MultiDrainSystems,Inc.

Now,testasectionhavingaflowcapacityofapproximately747gp

morabout83%ofthetargetedflowo

f900gpm.

Section0817trenchflowcap

acityisgivenonTableED8Hyd-01as753gpm.DeterminethevalueforFkfromthesametable.

TestTrenchSection0817,ha

vingaFkequalto10,644,utilizingEq

uationA.

Q=10,644x(0.005+0.002)1/2

Q=890gpm.

TrenchSection0817fallsshortofthetargetedflowcriteriaof900gpm.Trytogetclosertothetargetflowbytestingsection0818.

TestTrenchSection,0818,havingaFkequalto11,306.

Q=11,306x(0.005+0.002)1/2

Q=945gpm.

ThistestindicatesTrenchSection0818canbeutilizedtoattainam

inimumflowcapacityofatleast900gpm.

ThereforeTrenchSections0814to0818willbeusedtoformthe40linealfoottrenchdrain.

Theoveralltrenchdepthwillbefrom10in.to12.5in.

Trenchdischargeflowwillbe945gpm.Thetrenchflowcanbeexpressedincubicfeetpersecond(cfs)b

ymultiplying

theflowexpressedingpmby

themultiplier0.002228.Therefore945gpmisequivalentto2.1cfs.

Q.E.D.


12/16

TrenchFlowCapacity-

EconoDrain#8TrenchDrainSystem

,Slope=0.5

%

0500

1,0

00

1,5

00

2,0

00

2,5

00

0806

0807

0808

0809

081008

11

0812

0813

0814

0815

0816

0817

0818

0819

0820

0821

0822

0823

0824

0825

0826

0827

0828

0829

0830

08310

832

0833

0834

0835

0836

0837

0838

0839

0840

0841

0842

0843

0844

0845

TrenchSectionPartNumber

TrenchFlowCapacity(gpm)

0.0

0

0.5

0

1.0

0

1.5

0

2.0

0

2.5

0

3.0

0

3.5

0

4.0

0

4.5

0

5.0

0

TrenchFlowCapacity(cfs)

(gpm)

(cfs)


13/16

TrenchFlowCapacity-

EconoDrain#8TrenchDrainSystem,Slope=1.0%

0500

1,000

1,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

0806A

0807A

0808A

0809A

0810A

0811A

0812A

0813A

0814A

0815A

0816A

0817A

0818A

0819A

0820A

0821A

0822A

0823A

0824A

0825A

0826A

0827A

0828A

0829A

0830A

0831A

0832A

0833A

0834A

0835A

TrenchSectionPartNumber

TrenchFlowCapacity(gpm)

0.00

2.00

4.00

6.00

8.00

10.00

12.00

TrenchFlowCapacity(cfs)

(gpm)

(cfs)


14/16

Q,PVCPipeFlowDischarge,(gpm)

-5,000

10,000

15,000

20,000

25,000

4

6

8

10

12

1

4

16

18

20

NominalPipeSize,(in.)

Q,PipeDischarge,(gpm)

Discharge(gpm),S=0.5%





PVCPipeSizesShownforComparativeEstimates

Only

NOTE:LocalEngineeringEvaluationshouldbeperformedbasedonactualpipelayoutgeometry.

Q,PipeFlo

wDischargebasedonManningsEquation.AssumesPipeisflowingfull.

N=0.009,S=PipeSlope

HeadLossesarenotincludedinDischargevalue.


15/16

Project: ____________________________________________________Date:____________

Contact:_____________________________________________________________________

MultiDrainSystems, Inc.We Drain Your Site, Not Your Budget!

P.O. Box 88, Barium Springs, NC 28010 drawn by: _____________________________

P: (704) 508-1010 or toll free: (800) 433-1119

F: (704) 508-1011or e-mail at:www.multidrainsystems.com


16/16


P.O. Box 88

Barium Springs, NC 28166

Phone: 704-508-1010 or Toll Free (800) 433-1119

Fax: 704-508-1011

E-mail: [email protected]

www.multidrainsystems.com

We drain your site, not your budget!

Makers of:

EconoDrain EPS Trench Forming System

EconoDrain PT-3 EPS Trench Forming Systems for

Airports\Ports\DOT\Intermodal

MultiDrain Steel Trench Drain Systems

Alfa Channel Polymer Concrete Trench Drain

The reported properties and data contained in this publication are based on accepted practices, measurement and evaluation . They are intendedas guidelines for the sole use by MultiDrain Systems, Inc. customers and are not meant to circumvent regional or local conditions or engineersevaluation. Information and data may be changed or amended at any time and without notice to the user.

The information and data made available in this bulletin are provided as is without warranties or guarantees of any kind. Furthermore, anyperson who accesses such information, data, or material disclaims all liability for damages, costs and expenses, and agrees that there are no

remedies for negligence, or under strict liability, or for breach of warranty or contract, including, but not limited to, indirect, consequential,

punitive or incidental damages, even if notice was given of the possibility of such damages.

8 Econodrain Hydraulic Data Booklet

Documents

Transcript of 8 Econodrain Hydraulic Data Booklet