large meter sizing & selection

Large MeterSizing & Selection

October 2, 2013

© 2013 Badger Meter, Inc. 1

What do you look for in a meter?

• Residential and Commercial/Industrial Applications• Accuracy

• They only get to bill the water that they measure• Do not want to overbill customers• Low flow accuracy is especially important in residential meters

• Longevity• Maintain accuracy over time

• Easy install and maintain• Meter Materials• Modularity• Fits Available Space• Handles Existing Limitations in Customer’s System

• Compatibility with Reading Systems• Remote, Touch, AMR, AMI, SCADA (4-20)


Meter Technologies to Fit Every Need

• Two kinds of measurement• Positive Displacement (PD)• Inferential (Velocity)

• Positive Displacement (PD)• Nutating Disc• Oscillating Piston

• Inferential (Velocity)• Single Jet/Multi-Jet• Ultrasonic• Fluidic Oscillator• Electromagnetic (Mag Meter)• Turbine (Turbo)


• Hybrid (PD + Velocity)• Compound

• Technology Types• Mechanical

• PD, jet/multi-jet, turbo, compound

• Static (Electronic)• Mag, Ultrasonic, Fluid

Oscillator

• Sizing & Selection• Residential• Commercial/Industrial (C & I)

Residential Mechanical Meters


• Positive Displacement• Nutating Disc

• Badger Meter• Neptune• Hersey

• Oscillating Piston• Sensus• MasterMeter• Elster

• Inferential (Velocity)• Jet/Multi-Jet

• Master Meter• Metron• Sensus• Itron

Residential Static (Electronic) Meters


• Ultrasonic• Badger E-Series

• Electromagnetic (Mag)• Sensus iPerl

• Fluidic Oscillator• Elster SM700

Electronic Water Meters = “Smart”


• Typically measure the “speed of water” in a pipe• Provide ultra-low flow rates, typically accurate for the life

of the meter• Smart electronics provide “new” information for

residential applications: rate-of-flow and reverse-flow indication

• Reduced measurement errors due to sand, suspended particles, air pockets, and pressure fluctuations

• No moving parts; eliminate friction and wear• Residential Fire Service applications, UL-327B

Ultrasonic vs. Positive Displacement


- 80/20 Rule -Commercial and Industrial (C & I)

Meter Sizing


Commercial/Industrial Meters (C & I)


• Residential Technologies (> 1”)• Turbo• Compound (PD + Turbo)• Ultrasonic

• Master Meter Octave (2”-12”)• Electromagnetic (Mag)

• Badger Meter, Elster, Hersey, Neptune, Sensus,

• ABB, Krohne, McCrometer, Siemens

Turbo v. Compound Meters


Characteristic Turbo CompoundFlow Range 100:1 1000:1

Low Flow Sensitivity Good Excellent

Head Loss Excellent Good

Maintenance Periods Extended More Frequent

Purchase Price $X $1.5X - 2X

Turbo v. Mag Meter

• Sizes: 1½” to 20”• Technology: Mechanical• Accuracy: ± 1.5%• Testing: Annual• Straight Pipe: Required• Strainer: Recommended• Bi-Directional: No• 4-20mA: Extra Cost• Lower Cost: 4” & smaller

• Sizes: ¼” to 54”• Technology: Electronic & Static• Accuracy: ± 0.25% to 0.75%• Testing: State Dependent• Straight Pipe: Required• Strainer: Not Applicable• Bi-Directional: Yes• 4-20mA: Included in AC Models• Lower Cost: 8” & larger

Turbo Meters* Mag Meters*

* Typical

Turbo v. Mag Meter

• Submersible: Yes• Power Supply: No• Programming: Not Applicable• Standard Product

• Submersible: Limitations• Power Supply: AC, DC or Battery• Programming: Required• Configurable Product

Turbo Meters* Mag Meters*

* Typical

To maximize return it’s important to pick the right meter technology

and the right meter size.


Turbo Typical Operating Range


Size Model Operating Range Max Cont. Duty Extended Low

1 ½” T160 4 to 200 GPM 160 GPM 2.5 GPM

2” T200 4 to 310 GPM 200 GPM 2.5 GPM

3” T450 5 to 550 GPM 450 GPM 4 GPM

4” T1000 10 to 1250 GPM 1000 GPM 8 GPM

6” T2000 20 to 2500 GPM 2000 GPM 12 GPM

8” T3500 30 to 4500 GPM 3500 GPM 20 GPM

10” T5500 50 to 7000 GPM 5500 GPM 30 GPM

12" T6200 65 to 8800 GPM 6200 GPM 53 GPM

16" T6600 150 to 13200 GPM 6600 GPM 130 GPM

20" T10000 300 to 19800 GPM 10000 GPM 200 GPM

Compound Meter Operating Range


Size Operating Range Max Cont. Duty Extended Low

2” 1/2 to 200 GPM 170 GPM 1/4 GPM

3” 1/2 to 450 GPM 400 GPM 1/4 GPM

4” 3/4 to 1000 GPM 800 GPM 3/8 GPM

6” 3/4 to 2000 GPM 1500 GPM 3/8 GPM

8" 2 1/2" to 4500 GPM 3500 GPM 1 1/4 GPM

Rule of Thumb


COMPOUNDS

TURBOS

Where People Live

Where People Work or Play

Meter SelectionCondo or Apartment Complex?


Turbo

or

Compound?

Meter SelectionCar Wash?


Turbo

or

Compound?

Meter SelectionLarge Manufacturing Facility?


Turbo

or

Compound?

Meter SelectionSmall Hotel/Motel?


Turbo

or

Compound?

Meter SelectionHigh School?


Turbo

or

Compound?

Meter SelectionLarge Hotel Complex?


Turbo

or

Compound?

Meter Selection Guidelines


• The ratio of Low flow to Total flow provides valuable information

• If 5% or less of the total is low flow, use C & I Stylemeter

• If 10 - 25% of total is low flow, use Compound meter

• If more than 25% of total is low flow, use Residential Style meter

Calculating Percentage


High Flow + Low Flow = Total Flow

Low Flow x 100 = Low Flow %Total Flow

Examples:

12,000 x 100 = 8.3% Low Flow144,000

48,000 x 100 = 33.3% Low Flow144,000

Determining Flow Rates


Data Logging


• Just because you have a 4” line doesn’t mean you need a 4” meter.

• Portable Ultrasonic Meters• Capture data from a specific water

meter• Log water usage per period of time• Sense flow, record and display data• Provides a snapshot of water usage

• AMR/AMI Reading Systems• Configurable Data Profiling• Flow Rate Analysis Tools

Meter Sizing & Selection Exercise


APPLICATION Type/Size

1. 2000 GPM (95%) & 10‐35 GPM (5%) ?

2. 1/3 GPM (15%) & 110‐160 GPM (85%) ?

3. 750 GPM (90%) & 1/2‐15 GPM (10%) ?

4. 800‐1800 GPM (96%) & 25‐35 GPM (4%) ?

5. 2‐5 GPM (70%) & 30‐140 GPM (30%) ?

Sizing & Selection Examples


1. 1500 GPM (95%) & 10~35 GPM (5%)

Turbo•Rule of Thumb: 5% or less on Low Flow, 6”

•Operating Range: 20 to 2500 GPM•Max Cont. Flow: 2000 GPM

2. 1/3 GPM (15%) & 110~170 GPM (85%)Compound

• Rule of Thumb: 10 ‐ 25% on Low Flow

, 2”

• Operating Range: ½ to 200 GPM• Max Cont. Flow: 170 GPM

3. 750 GPM (90%) & 1/2~15 GPM (10%)Compound

• Rule of Thumb: 10 ‐ 25% on Low Flow

, 4”

• Operating Range: ¾ to 1000 GPM• Max Cont. Flow: 800 GPM

Sizing & Selection Examples


4. 800~1800 GPM (96%) & 25~35 GPM (4%)

Turbo

• Rule of Thumb: 5% or less on Low Flow

, 6”

• Operating Range: 20 to 2500 GPM• Max Cont. Flow: 2000 GPM

5. 2~5 GPM (70%) & 30~140 GPM (30%)

• Rule of Thumb: More than 25% on Low Flow

Disc, 2”

• Operating Range: 2.5 to 170 GPM• Max Cont. Flow: 100 GPM• Why Not 2” Compound? 70% on Low Flow Side

While I have your attention …


Straight what?


Turbo Straight Pipe Requirements

* Can be 7 pipe diameters depending on valve type

• Turbo with Strainer• 4-5 Diameters Up Stream & 0-2 Diameters Down Stream

• Turbo without Strainer• 5-10 Diameters Up Stream & 2-5 Diameters Down Stream

• Mag Meter (strainer not applicable)• 3 Diameters* Up Stream & 2 Diameters Down Stream

Mag Meter Velocity Charts

Questions / Answers / Discussion

Michele HarveyBadger Meter

Field Technical Supportcell/text: 414-460-7724

[email protected]

Thank You!

large meter sizing & selection

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