techniques and technology for water leakage management mike tennant ba (hons), dipm director of...

Techniques and Technology for Water Leakage

Management

Mike Tennant BA (Hons), DipM

Director of Sales and Business Development

Content

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Brief Introduction to Halma Water Management

Strategy for Leakage Control

Assess – DMA, Flow Measurement, Network Model, Data Logging

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5

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Localize – Noise Logging ‘Permalog’, Fixed Networks ‘PermaNet’

Locate – Leak Noise Correlation, Acoustic Confirmation

Control – Intelligent Pressure Management

Halma Water Management

The world’s leading water management company

Proven reputation for innovation, quality and design

Global sales and distribution network

Huge range of best selling products

Equipment used throughout the world

Highly experienced, tailored solutions and support

Uniquely placed to deliver an integrated solution to major projects

Partnerships based on Understanding and delivery

Local presence to support projects


Four water conservation experts now working together as one, with one name, one sales force, one global distribution network and one board of directors.

HWM successfully combines the reputation, experience, innovation, knowledge, products and

customer service of these four well respected companies into one global solution for the industry.


Palmer Environmental The worlds largest supplier of leak detection and pressure control equipment to manage leakage in water networks. Designed the first correlator in 1979 and have pioneered acoustic noise logging and fixed network systems.

Radcom TechnologiesMarket leader in the design and manufacture of rugged, innovative data logging and telemetry equipment for water and environmental industries. Now introducing innovative Wastewater solutions.

Hydreka Specialised flow measurement systems for all parts of the water cycle, including open channel systems and environmental monitoring.

Fluid Conservation Systems Market specialist in the USA for Palmer, Radcom & Hydreka products.

Halma Water Management – Sales Structure

HWM is an export driven company with a team of dedicated Sales Managers negotiating framework agreements with customers and distributors throughout the world.

Sales Sales ManagerManager

AsiaAsia

Sales Manager Sales Manager ChinaChina

Sales Manager Sales Manager EuropeEurope

Sales Sales ManagersManagers

UK x2UK x2

HWMHWMMiddle East Middle East

Sales Manager Sales Manager CanadaCanada

Sales Sales Managers x6Managers x6

Hydreka ExportHydreka Export TerritoriesTerritories

Sales Sales Manager Manager

ROWROW

We have a worldwide network of distributors covering almost all geographic regions and experience in supplying direct to aid/government funded projects

Over 50DistributorCountries

AlgeriaArgentinaAustraliaBulgariaBelgiumBoliviaBosniaBrazilCanadaChileChinaColombiaCroatiaCz RepDenmarkEcuadorEgyptFinlandFranceGabonGermanyGreeceHong KongHungaryIndiaIndonesiaIranIrelandItalyIvory CoastJapanJordanKenyaKorea KosovoLatviaMalaysiaMexicoMoldovaMoroccoNew Zealand NorwayPakistanPeruPhilippinesPolandPuerto RicoRomaniaRussiaSaudi ArabiaSerbiaSloveniaSouth AfricaSpainSwedenThailandTunisiaTurkeyUkraineUruguayVenezuela

Halma Water Management – Distributors

Why Detect Leaks?

““Throughout the world, water resources continue to be spoiled, wasted and degraded. The consequences for humanity are grave”

Ban Ki Moon United Nations

Secretary-General December 2007

Cartoon courtesy of the World Bank (Water & Sanitation Sector)

Assess

Localize

Locate(Pinpoint)

Pressure Control

The process of measuring flows of water in the network to establish how much is being lost and in which areas, includes establishing DMA’s, Flow Measurement and Data Logging

Localisation - identifying potential leak areas within the water network

Correlation – pinpointing a leak location to within a few centimetres Confirmation - using acoustic microphones to verify the leak positionCustomer Side – identifying leaks on the customer’s side of the meter

Reducing pressure to save water, minimise leakage, extend asset life and reduce burst frequency

Strategy for Water Leakage Management

Assess

Flow Measurement Solutions

Data Logging & Telemetry Solutions

Establishment of DMA’s

Traditional DMA Model -Create district metered areas, install flow measurement devices and data loggers

Consider the implications, and best practice (DMA size v localisation) balance for you – What is the best Solution for your Network

DMA concept

Reservoir

Pump

District Meter &Pressure Sensor

Zonal MeterDV

DMV

DMAWPZ


for the Water Network


Flow Measurement Solutions - HydrINS

HydrINS ElectromagneticInsertion Flow-Meter

Easy installation with hot-tap capability no need to stop

flow or cut pipeFlow and pressure measurement.

Measures water velocity in full pipes.Advanced processing techniques provide

high accuracy even at low flow rates.Choice of stem lengths. Submersible transmitter.

Sturdy construction (3mm thickness on 700mm and 1000mm stem lengths)

Probe head with flow

direction arrow and

alignment bars

Communication Port

& Pulse output

Safety chain

Plastic stopper C

Brass clamping nut

Pressure monitoring

port

Sensor

HydrINS ElectromagneticInsertion Flow-Meter

Flow and pressure measurement. Measures water velocity in full pipes.

Advanced processing techniques provide high accuracy even at low flow rates.

Easy installation with hot-tap capability.Choice of stem lengths. Submersible transmitter.

Sturdy construction (3mm thickness on 700mm and 1000mm stem lengths)

HydrINS is one of the most accurate flow measuring devices available on the market, particularly at low flows

Probes can be supplied in 4 different insertion lengths depending on the pipe size:

300mm (12”)500mm (20”)700mm (27”)1000mm (39”)

They can be used on any pipe between 100mm (4”) to 8000mm (360”)

Flow Measurement Solutions - HydrINS

ChronoFLO Clamp On Transit Time Flow-Meter

Non invasive flow measurement No loss of pressure or risk of leakageStable flow measurement in difficult

conditions on most pipe material Advanced digital technology

Highly accurate even at low flowsPortable or fixed using battery or mains Rugged for field use and easy to deployLCD displays flow rate in both directionsOptional gauge measures pipe thickness

Flow Measurement Solutions - ChronoFLO

Measure Flow – Measure Flow now

Site Setup – Enter site parameters

System Setup – Your meter preferences

Data Management – File and Logging options

Diagnostics – Advanced functions

Charge Battery – Charge battery

Setup Summary – View important settings

Flow monitoring

Halma Water Management flow monitoring equipment

Providing flow information – where is the water going?

Analyse trend information

Radwin automated leakage statistics

Traffic light system

Case Study - DMA Set-Up in Veolia 3-Valleys

Water

Ian DeCiantis

Leakage & Network Support

Team Leader Eastern/Western Regions

Three Valleys Water

Nov Mihajlovic

IT Applications Developer

English Channel

London

R. Thames

English Channel

London

R. Thames

Veolia Water Supply Area

TVW Reporting Structure

6 Resource zones

33 Hydraulic zones

780 District zones

DMA concept

Reservoir

Pump

District Meter &Pressure Sensor

Zonal MeterDV

DMV

DMAWPZ

Typical Location

Data-Handling

Modem to Modem communications

GSM Network

GSM modem

Daily messages

Daily Messages

Server picks up the daily messages from GSM or SMS loggers

DAILY MESSAGES

Typical DMA flow profile

From one of our 750+ District meter areas

Company Reports

Data Logging Solutions

Data Logging & Telemetry Solutions

Why use Data Loggers?

To gather data on network performanceTo plan network expansion, pressure zones, DMA’sTo create network modelsTo ensure regulatory complianceTo measure leakageTo verify performance of Pressure Reducing Valves (PRV)

LowFlow

HighPressure

Data collected from the logger shows

that when the flow of water is low during the night, the water pressure increases. This feeds leaks and increases water lost

through leakage.

In this example, HWM provided the

equipment needed to regulate the pressure

automatically, thereby making

instant savings in water consumption.

Data received from a two channel logger recording flow and pressure from the same site.

Why use Data Loggers?

Data Logging – Portable Solutions

LoLogLL / VistaTwo Input Channels

All LoLog features with one or two input channels

Memory 16,000 readings LCD display (Vista

only)Vista can be used as a

solid state pressure gauge, or local indicator

for other electrical signals (e.g. digital flow

meters)

LoLogSingle Input Channel

Can be attached to any pulse output meter.Can be used to help

planners assess demand in residential areas.

Waterproof and portableIP68 submersible5 year battery life

Infra Red Rugged Design

Pressure TransientSpecialised logger

Ideal for monitoring rapid pressure changes in

water pipes generated by pumps, Pressure

Reducing Valves (PRV) and other valves.

Supplied with one input for an external pressure

transducer.

Data Logging with Telemetry Options

MultiLog SMS/GSMAdvanced Data Logger

PSTN, SMS & GSM Up to 4 inputs.

Monitors any combination of digital or analogue signals. No maintenance for 5 years.Can perform dynamic flow and pressure analysis of

network models.Can conduct “fast

sampling”.5 year battery life.

MultiLog LXMid Range Data Logger

One or two digital flow

input capabilities. Internal pressure sensor

Advanced SMS data compression

Ideal for monitoring flow and/or pressure to assess

demand, leakage and conformance.

5 year battery life.

MultiLog GPRSCellular Telemetry

Logger

Downloads data to PC by sending an email directly

from the logger. Can send hourly data if

required for near real time monitoring – making it ideal

for dynamic flow and pressure analysis of

network models.

Flow Zones provide valuable data to assess leakage

From one of our 750+ District meter areas

DMA concept

Reservoir

Pump

District Meter &Pressure SensorZonal MeterDVDMV

DMAWPZ

Question: How Big should your DMA be? Do you need a DMA or larger flow measurement?

Creating DMA’s is expensive and time consuming – but gives valuable data

Insertion flow meters and modern data loggers make it much easier

Modern leak localisation can be used within or independent of DMA’s

The choice is yours to find the best ‘fit’ to your network

Localise

Leak Detection Solutions

Leak Localisation – Step Testing

Step Testing is an alternative approach to Noise Logging and works at low pressure and on

plastic pipes

It works by continually measuring the flow of water

into a DMA as valves are shut off in sequence.

Testing usually takes place during the night when water

consumption is at its lowest so that shutting off the supply

causes minimum disruption.

The areas of the pipeline showing unexpected water

losses can then be identified and investigated.

Leak Localisation – Step Testing

MAST (Mobile Advanced Step Tester) is a radio based system which gives the operator immediate notification of flow

change at the receiver as a valve is operated.

This allows potential leak areas to be quickly identified and quantified, avoiding the need to complete a full step test for

later comparison with logged data.

The MAST system comprises two instruments:

• Data logger with high power radio transmitter• Portable flow indicator/recorder with integral radio receiver

MAST has recently been extensively redesigned to be more portable and user friendly. The new system (MAST II) also

features improved radio telemetry.

The Original MAST

The New MAST II

Leak Localisation – Noise Logging used in a DMA set-up or independently

Loggers detect noise created by leaks.They are easily deployed on valves using magnets and can be placed permanently or moved from site to site. Using them causes no interruption to water supply.

Permalog+®

Permalog+ is an intelligent noise logger designed for permanent deployment or tactical deployment to survey

large areas of network quickly and effectively

• Fully automatic intelligent logger• Adaptable to all network situations• Innovative design for rapid deployment• Compact size• Low unit cost• Long battery life (5-7 years)• Patent protected• Aqualog extended logging mode• Flexible Data Collection: “Lift and Shift” “Drive By Mode” “PermaNet via Radio Network” “PermaNet via SMS Repeater”

Upgradeable to fixed network solution

Leak Localisation – Noise Logging

Since the Permalog+ was launched in 2007, over 40,000

units have been deployed successfully

throughout the world.

When these figures are combined with sales for older

models, there are now over 200,000 Permalogs

in circulation worldwide.


Made in Wales

Patroller IIDrive-by Data Capture

PDA based

Faster drive-by for reduced patrol times

Distance of transmission up to 150m from logger


Areas using Permalog with drive-by data capture include: Las Vegas, El Paso, Hong Kong, 3-Valleys Water, Thames,

Birmingham, Beijing, Murcia, Almeria & Metz

Patrol Mode

Standard Patrol Screen

Can be used with ALL

Versions of Permalog

Logger signal every 2 secs

Proven Leakage detection algorithm

Lift & Shift

Reload database

Signal received

Removes from list

Logger only sends signal

when swiped, then

automatically turns off

Aqualog Mode

User defined start / stop time

3D AQ graphics

Used for in depth noise logging projects, leakage and detecting UFW users

PC downloadable

28 Day History

The logger always has the last 28 day history can be displayed graphically or tabular

GPS Mapping

Loggers scanned on deployment can be given GPS position by PDA, later downloaded to Permalog software. Can plotted on mapping software or exported into your GIS system

Beijing Olympics 2008Permalog used as a Burst

Monitor

Three Permalog patrollers and 3,500 Permalogs were recently installed in Beijing’s municipal water distribution system to safeguard its water supply during the Olympics and beyond.

The Beijing Water Group originally purchased a set of 60 Palmer’s Permalogs in 2000. With the increasing demand of water supply and the approaching of Beijing Olympics 2008, the Group decided to improve its urban water network leakage detection system by purchasing more Permalogs.

Beijing Olympics 2008

管网漏水监测和预警系统案例分享

在 2006 年的“中非论坛北京峰会”期间，在中心区累计发现并修复暗漏点 25 处，有效地预防了爆管事故的发生，确保中非论坛期间无一例爆管事故的发生，此举受到北京市政府的表彰

在 2007 年的春节及两会期间，中心区共发现暗漏点 263 处，无一例爆管事故发生，有效的保障了春节和两会期间的供水安全

汶川大地震，国家有关部委和专家组又指定Permalog 漏水检测系统为灾后重建恢复管网运行的指定产品

2008 奥运会场馆及奥运村周边地区以及北京市二环以内（含天安门、中南海、王府井等重点区域）进行漏水监测及报警，并取得了很好的效果，受到国家嘉奖

Beijing Olympics 2008

Mr. Wang Yaowen, Chief Engineer of the Beijing Water Group said, "The Permalog water network leakage detection system is one of the leading systems in the world. It has been used successfully in many major American and British cities for many years. This project means Beijing’s water networking leakage detection system is as advanced as the other developed cities in the world

Stokewood Permalog Project

carried out byThames Water

Stokewood Zone area

Stokewood WPZ - background

Slough, Windsor, Datchet, Colnbrook and Poyle

28 DMAs

Approx. 30 sq. miles

Approx. 120,000 population

High leakage, high recurrence

Continuous 4-5 leakage staff

Leak types found

19%

26%

2%10%

9%

22%

12%

Mains SP VP Hydrants CSL OSV Other

Progress towards target

21

/01

/01

28

/01

/01

04

/02

/01

11

/02

/01

18

/02

/01

25

/02

/01

04

/03

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11

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18

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25

/03

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01

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08

/04

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15

/04

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22

/04

/01

29

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06

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13

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20

/05

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27

/05

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03

/06

/01

Actual Target

2.81Ml/d

1 Ml/d

Leakage level

Conclusions from project

Very reliable leak finding capability

Productivity increased by x2

Previously unseen amount of leaks identified in a short space of time

15% reduction in MNF within 4 months

Target level met - never previously achieved

Positive response from Area Leakage Engineers (labour-saving)

Significant cost reduction per Ml/d saved

Increasingly cost-efficient with time

Permalog strategy

Can be adapted to any situation, independent of scale

Well suited to areas of high recurrence and/or high leakage

Manpower savings combined with increased productivity

Long-term, sustainable approach

Becoming increasingly cost-efficient over time

管网漏水监测和预警系统案例分享——节水，防爆管

水署新法測漏水管年省逾億 2007 年 4 月 10 日【明報專訊】本港每年耗水約 9 億多立方米，由於水管老化，當中約四分一是在輸水過程中，在地底悄悄溜走，水務署自 2001 年採用先進的探測儀器，及早發現地底水管滲漏位置，進行補救，有別過去依靠人手檢查。單是過去 5 年，估計累積「慳水」 2.6 億立方米，相當於 8.5 億元的食水。

新技術可及早發現喉管問題，令爆水管情　減少。水務署資料顯示， 2001/02 年本港爆水管個案共有1884 宗， 2005/06 年只有 1526宗，下降幅度為 19 ％。爆水管數字下降，主要由於該署近年採用先進的測漏技術。

新技術減少爆水管情　該署提升水管測漏的效率後，每年發現的滲漏個案，由01/02 年的 5054 宗，下降 25 ％至 05/06 年的 3758 宗，即平均每日約 10 宗，單是去年度節省的食水量已高達3945 萬立方米，佔全年供水量的 4 ％。

水务署高級工程師林正文应用 Permalog

PermaNet Fixed Network – Noise Logging

Benefits of the PermaNet fixed leak detection network

Areas with a PermaNet fixed leak detection network currently include Hong Kong,

Birmingham, Inverness, Barnsley, Tonsberg, Cambridge University & Metz

• Automatic leak alarm

• Immediate response – more water saved

• Leak targeted when combined with flow data

• Critical areas under control

Permalog using 868 MHz

Leak Localisation – Noise Logging - PermaNet

As an alternative to drive by data capture, permanently deployed Permalogs can be combined with Network Radio or SMS Repeater to send leak data directly to an office

PC or mobile phone via dedicated web hosted or local software packages.

SMS/GPRS Radio Data

Logger

Global Net

Booster receiving on 868MHz, transmitting on 153MHz

SMSRepeater

SMS/ GPRS / WIFI Gateway

Benefits -

DMA’s under control - HRR/ ‘problem DMA’s’

Efficient Intervention - minimise disruption

Leak sizing with real time flow and leak data

Improves reaction time to respond

PermaNet - Permanent Leak Detection System

SMART Log

AMR

Permanent Leak Detection via PermaNet Options…..

SMS/GPRS Radio Data Logger

SMS/ GPRS Gateway

Global Net

Booster receiving on 868MHz, transmitting on 153MHz

Permalog with Permacom

Flow & Pressure

Acoustic

Leakage

SMS repeater

Pushing the boundaries…..

10km SubmasterHoylandswaine

5km SubmasterWorsbrough

Central ConcentratorMonk Bretton Res

Central SMS/GPRS Data Concentrator(The higher the aerial elevation, the increased radio network coverage)

External aerial position, on pump

house roof

Central SMS/GPRS Data Concentrator(The higher the aerial elevation, the increased radio network coverage)

Above ground mounted repeater

Range up to 2000m

depending on site

conditions

Viewing and analysing the data via GlobalNet web database

GlobalNet Web Viewer - Login

GlobalNet Front Screen Login

HWM PermaNet User Login

GlobalNet Web Viewer – Summary Screen

GlobalNet Web Viewer – Registered Permalogs

Real time Monitoring DMA A233 Monk Bretton

Nightline 4.5 L/SNightline increase on

26/12/07 by 1.2 L/S

Logger 114 in No Leak mode until

26/12/07, changes to Leak mode to correspond with

DMA flow increase


Logger 114

Logger 1154” MB


DMA A233 – Monk Bretton Barnsley

DMA Facts

3900 total properties

45 Km mains (mixed materials)

On average takes 85 hours to sweep DMA by traditional methods

196 Permalogs deployed using PermaNet

7.5 L/S project start nightline

Historical Nightline DMA A233 Monk Bretton

Start of PermaNet Nightline 7.5 L/S

3 months of PermaNet Nightline

4.5 L/S

NEW RECORD LOW

5 YEAR

NIGHTLINE

Repair History Monk Bretton DMA, Barnsley

Sweep Date Leaks Found

1 05/09/2007 6 Comm Pipe leaks / 2 leaks stopped onsite2 17/09/2007 5 Comm Pipe leaks / 2 stop tap leaks3 24/09/2007 1 Supply pipe leak4 05/10/2007 1 Comm pipe leak5 18/10/2007 1 Comm pipe leak6 26/10/2007 6 Comm pipe leaks / 1 Mains leak / 1 valve leak7 20/11/2007 1 Valve leak8 04/12/2007 NO LEAKS PROMOTED9 07/01/2007 1 Comm pipe / 1 Mains leak / 1 valve leak

Average time taken 26hours per sweep(Last 3 sweeps 10hours each)

(compared to 85hours before)

Locate

Leak Detection Solutions

Leak Detection - Correlation

MicroCALL + Digital Leak Noise

Correlator

Automatic 3 outstation correlation

Colour graphicsAdvanced software

MicroCorr DXDigital Leak Noise

Correlator

Digital sensors, transmission and

processingCompact design

MicroCorr 7PDA/PC based Leak

Noise Correlator

Analogue sensorsPDA/PC interface

Highly portableBluetooth technology

SoundSens “i” Correlating Noise

Loggers

Infra Red download Fast deploymentCustom recording

Cases can be linked

The correlation formula

L = D - (V x Td)

2

Leak Detection - Correlation

Leak position

LLLV x TdV x Td

DD

Leak detection

Palmer Environmental leak detection equipment

Leak detection

SoundSens-i Multipoint Correlator

SoundSens “i” Correlating Noise

Loggers

Infra Red download Fast deploymentCustom recording

Cases can be linked

Leak Detection – Confirmation

Lmic Electronic listening

stick

PortableLightweight unit

Easy “trigger” operationVolume/sensitivity rotary

control Excellent performance

Xmic LiteGround Microphone

System

High quality soundAuto and manual filtering

Multi function displayMinimum (noise) level

profiling (MLP)Hand probe attachment

Xmic Digital Ground

Microphone

Increased functionality, display, filters

Minimum (noise) level profiling (MLP)

Wind / airborne noise protected foot

Customer Side Leakage

Pinpoints leak locations on acoustically challenging pipelines (e.g. plastic pipes)

In built tracing wire in the 50m reel.

High accuracy of leak detection reduces excavation costs and

improves repair time.

User friendly design

Low cost unit

Customer Side Leakage - Leakfrog

Easy to deploy and collect.

Easy to interpret results.

Indicates leakage, wastage and flow.

Custom LCD display indicates

Interval between pulses, leak size, unit activity and other data.

Automatic Meter Reading - SMART System

Low cost alternative to fixed network AMR

Rapid drive-by download speeds

Can be used to:

• provide accurate customer billing• monitor customer side leakage,• enforce drought restrictions• apply rising block and/or seasonal tariffs • detect meter fraud.

Timely repairs

Repair all leakage identified from active leakage detection survey

Control

Pressure ControlSolutions

Simple and immediate method of reducing leakage

Reduced volumetric flow

into a zone

Lower pressure-related

consumption

Fewer burst pipes

More consistent service

to the consumer

Pressure Management: Why Manage Pressure?

Why Control ?How Does A PRV Work?

When adjusting the pilot, screw in and the PRV increases pressure on the outlet, by venting water from the PRV top chamber

When adjusting the pilot, screw out and the PRV decreases pressure on the outlet, by filling the PRV top chamber with water

Typical pilot adjusting screw

Water in the top chamber then pushesthe PRV seat down and releases the seat upwards when water is vented

Typical FM Site Installation

PRV & Meter

Solenoid Box(end view)

FM - ControllerBox

(end view)

Using UpstreamPressure To Control

Actuator

Manual SafetyOverride

FM Installation Plan

Without PRV Controller

Fluctuating demand

Constant pressure

Total week’s flow 13.6Ml

Nightline

Maximum demand

Lowest Demand. Lowest Demand. Pressure Much Too High!Pressure Much Too High!

With PRV Controller

Fluctuating demand

Pressure adjusted accordingly

12.8Ml in the week

New nightline

Immediate WaterSaving of 6%

HWM Pressure Management Solutions

ControllerCom

High Visibility Comms

Can be fitted to any HWM controller

Logs dataTwo way SMS reporting

GSM communicationAlarm option

Fully adaptable Versatile set up options.

Hydraulic ActuatorAccurate PRV Control

Long life brass buildActs as the interface

between hydraulic PRV and electronic controller

Fitted in place of the adjusting screw on the standard pilot on PRV

Easy to install

ControlMate FM Pressure

Management System

Enables pressure into a zone to be continually adjusted according to actual demand (flow modulation) or a pre-

programmed time.

Maximum potential water savings.

ControlMate 2Pressure

Management System

Enables pressure into a zone to be switched between two pre-set values (low and high)

Easy to use.Self contained.


UK Pressure Management

The Thames Valley Experience

Pressure Management The Thames Valley Experience

Thames Valley Area and Leakage Position

Types of Pressure Control

Recognising the full Benefits

Tall Buildings and LIDAR Data

The Future

Our region

Over 31,000km of water mains and 8 million customers

Nearly 68,000km of sewers and 13.8 million customers

Leakage position

Leakage in the Thames Valley at its lowest for ten years and is comparable to other water companies in England and Wales.

Our challenge is greatest in London, where over a third of our mains are over 150 years old

We began in 2002 a long term programme of mains replacement in London – the only truly sustainable way to bring down leakage.

Replacing mains is expensive and disruptive. The complexity and scale of the work is unmatched by any other water company.

This is a part of our wider water resources plan for the future when demand is expected to increase and our supply resources will change

Thames Valley Operational Leakage

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OperationalLeakage

PRV Photos

Fixed Outlet PRV Time Switched Controller.

Closed Loop System

Flow Modulation

Wide Open to Fixed Outlet

Timed Profile

Flow Modulated

Advantages of Flow Modulation.

• Fully flow modulated manages & stabilises Network pressure 24hours a day, not only night time pressures.

• Complies with the Fire Brigades requirements.

• Controllers are easily by-passed should they become suspect.

• Set to fail at max outlet pressure of the PRV.

• Can Reduce Headloss.

• Reduces Daily Demand over a 24 hr period

• Wessex Controllers instantly react to changes in flow

•Reduction in Active Leakage Detection in area completed

Typical flow modulated Wessex controller installation

Recognising the Benefits

Instant Leakage and Distribution Input Saving

Transmission Benefits

Stable Pressure means reduced:bursts

Leakage Recurrence

Detect and Repair Activity

Cost to maintain stable leakage level

A calm network for Operations and the Customer

HWM Pressure Management Solutions

ControllerCom

High Visibility Comms

Can be fitted to any HWM controller

Logs dataTwo way SMS reporting

GSM communicationAlarm option

Fully adaptable Versatile set up options.

Hydraulic ActuatorAccurate PRV Control

Long life brass buildActs as the interface

between hydraulic PRV and electronic controller

Fitted in place of the adjusting screw on the standard pilot on PRV

Easy to install

ControlMate FM Pressure

Management System

Enables pressure into a zone to be continually adjusted according to actual demand (flow modulation) or a pre-

programmed time.

Maximum potential water savings.

ControlMate 2Pressure

Management System

Enables pressure into a zone to be switched between two pre-set values (low and high)

Easy to use.Self contained.


Controller Performs Well when a Shopping Centre Catches Fire at 4am

3032343638404244464850525456586062

-50050100150200250300350400450500550600650700750m cum/hr

08:00 12:00 16:00 20:00 00:00 04:00 08:00 12:00 16:00 20:00 00:00 04:00 08:00 12:00 16:00 20:00 00:00Fri 8 Apr 2005 08:00 (hour:min)

Eagleby DMALineSite NameEagleby DMAEagleby DMA

MeasurandPressureFlow 1Unitsmcum/hr

HWM Customers

Key Customer References

• Strategic Framework Partner to Water Companies throughout the world, including:

Thames Water, Veolia Water, Suez, Sino-French, WSD Hong Kong, Beijing Water, Scottish Water, Yorkshire Water, United Utilities, South Staffordshire Water, Southern Water, Wessex Water, Essex and Suffolk / Northumbrian Water, 3-Valleys Water

• Worldwide Customer base including Middle East, Asia, Americas and Europe

• Expertise and experience in large contract supply and support

• All Major UK Water Companies supplied

HWM Training Support


Examples of HWM 1,2 and 3 Day Training Courses

Leakage Detection & Management

Book (125 pages)

On Site Support & Servicing

There is no use HWM supplying the best equipment if our customers don’t know how to use it properly! Our training is designed to improve confidence, performance and results.

The First Water Management Training Facility Built in Wales

Every Water Company in the United Kingdom has trained at this site

Many international visitors have trained here too



The world’s leading water management company

Proven reputation for innovation, quality and design

Global sales and distribution network

Huge range of best selling products

Equipment used throughout the world

Purpose built UK based training facility

Highly experienced, tailored support

A clear vision for the future of water management

Any Questions?

techniques and technology for water leakage management mike tennant ba (hons), dipm director of...

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