Assessing Water Loss in Plastic Pipes In Water Distribution ...Assessing Water Loss in Plastic Pipes...

Assessing Water Loss in Plastic Pipes In Water

Distribution & Transmission Systems

Tuesday, December 5, 2017 at 7:35AM PDT

Carissa Boudwin, Dir. Marketing, Electro Scan Inc., carissa@electroscan.com

BOOTH #502

Agenda

1. Plastic Pipes & Acoustic Sensors

2. What is Low Voltage Conductivity?

3. Manuals & Standards

Low Voltage Conductivity

Leaks In Plastic Pipes

1. PVC & HDPE

2. Acoustic Sensors in Plastic Pipes

Good Fusion Joint – Fully Acceptable

Melt Out Unacceptable – Possible Causes: Pipe Ovality, Flat Spots,

Undersized Pipe and Binding

“Tried-and-True” Method

External AcousticSounding

Listeners

Correlators

Leak Loggers

Permanent Leak Detection

Non-AcousticGas Tracer

Themography

Satellite

Low-Voltage Conductivity

Typical Frequency Ranges

• Human male voice 125 – 2000 Hz

• Human female voice 250 – 5000 Hz

• Fran Drescher’s Voice 5000 - 7000Hz

• Typical 6” cast iron pipe 200 – 800 Hz

• Typical 6” PVC pipe 5 – 30 Hz

Sound Velocity Travels at Different Rates When Water is Under Pressure, Depending on Pipe Material and Size

How Far Can General Distance Sounds

Travel? 2 GPM Leak at 60 PSI

PVC and HDPE

Acoustic Inspection

• Takes Much Longer to Complete.

• Multiple trials at different filter settings to

dial in the most accurate setting.

• Plastic pipe frequencies are extremely

low and in a narrow band.

• Cost can be higher with plastic than iron

1. How Does Low Voltage

Conductivity Work?

2. Results

WRONG DISTANCE

RIGHT DISTANCE

“If a Pipe Leaks Electricity,It Leaks Water.”

- Elementary Geophysics

Ohm's LawE = IR ; I = E/R ; R = E/I

Where:“E” volts“I” amps“R” ohms

Torricelli’s Law

Electro Scan’s Tri-Electrode Array in a Water Main.

Low VoltageByPipeMaterial

Standards & Manuals

1. AWWA M77

2. ASTM

3. O&M Manual

AWWA M77

c. Low Voltage Conductivity method

AWWA M77

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I N T E R N A T I O N A L O F F I C E S

Assessing Water Loss in Plastic Pipes In Water Distribution ...Assessing Water Loss in Plastic Pipes...

Documents

DUCTILE IRON PIPES & FITTINGS - …datasheet.atwebpages.com/AMJ DI Pipes and Fittings.pdf · DUCTILE IRON PIPES & FITTINGS Ductile Iron Pipes, Fittings & Valves for potable water,

The Research Landscape - Water Industry Forum · 6/25/2018 · 3. AWWARF Nondestructive, Noninvasive Assessment of Buried Pipes 2002 4. Mapping & Assessing the Underworld – EPSRC,

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Glass water pipes

Water Pipes for Sale

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The Effects of Chlorinated Water on Polyethylene Pipeshdpeoxidation.com/Effects of Cl Water on PE Pipes - Cytec 2011.pdf · The Effects of Chlorinated Water on Polyethylene Pipes

Antimicrobial Water Pipes - symphonyenvironmental.com · Antimicrobial Water Pipes The growth of harmful microorganisms inside drinking-water distribution pipes and tanks results

Keep your water pipes under control...pipes and cause water damage, particularly in the case of older existing installations.2 However, disaster can strike quickly even when pipes

STANDARDS FOR WATER FACILITIES Stand - Water Fac CORRECTED 2-2011.pdf3.01.07 Connections to Existing Pipes 3.01.08 Looping of Pipes 3.01.09 Separation Between Pipes ... STANDARDS FOR

PPR Pipes & Fittings A - Palaplast...Cross-Linked PE pipes & PERT pipes for Cold & Hot water applications PPR Pipes & Fittings Geothermia Σωλήνες Δικτυωμένου PE &

NYERI WATER SEWERAGE COMPANY LIMITED HDPE PIPES …...NYERI WATER & SEWERAGE COMPANY LIMITED HDPE PIPES & PIPE FITTINGS-SCHEDULE 2 TENDER REF NO: ... HDPE PIPES & PIPE FITTINGS-SCHEDULE

Broken Pipes & Lost Water

Water Corporation: Management of Water Pipes · WATER CORPORATION: MANAGEMENT OF WATER PIPES This report has been prepared for submission to Parliament under the provisions of section

GRP Infrastructure Water & Sewage Pipes and Fittings

Antimicrobial Water Pipes › ... › 03 › d2p-Water-Pipes-… · Antimicrobial Water Pipes The growth of harmful microorganisms inside drinking-water distribution pipes and tanks

Test Methods for Assessing Long-term Properties of Corrugated HDPE Pipes … · 2017-07-05 · Test Methods for Assessing Long-term Properties of Corrugated HDPE Pipes (Part I- Long-term