water meters catalogue - netafim catalogue.pdf · dimensions irrigation & agriculture water...

Water Meters Catalogue

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Content

IRT 3

WMR 5

WT II 7

WST SB 9

SF 11

PB 13

KD 15

K/KA KB/KBA 17

KBJ/KBJA 19

BM/BMA �1

ECM �3

3

Irrigation & Agriculture Water Meter - Model IRT

Features

• Negligible loss of head• Simple maintenance• Field replaceable measuring unit• Hermetically sealed register with glass lens• Bearings are constantly flushed during operation to eliminate

deposit of solids• Optional electrical output: EV (Volume) or EF (Rate of Flow)• Compatible with Dialog® automatic reading system

Applications

Irrigation and sewerage metering

Technical Specifications

Maximum Working Pressure 16 bar

Maximum Liquid Temperature 60°C

Body Polyester coated cast iron body

Connection Flanges according to ISO, BS 10, AWWA or others

Register M³, U.S. Gallon, cu.ft, ML Central pointer or 3 pointers

Available Sizes

3" - 10” (80mm – 250mm)

Description

Special design with free water passage allows measurement of water with high contents of impurities.

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Dimensions

Irrigation & Agriculture Water Meter - Model IRT Performance data

Head Loss CurveInstallation Requirements

• The meter can be installed in any position (horizontal, vertical or inclined)

• The meter must be always full of water while operating

• Prior to the installation of a new meter, the pipeline must be flushed out

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Irrigation & Agriculture Water Meter - Model WMR

Features

• Minimum loss of head• High accuracy• Hermetically sealed register with glass lens• Optional electrical output: EV (volume), EF (rate of flow) or

DIALOG• Not sensitive to dirt

Applications

For main supply lines, agriculture and industry


Maximum Working Pressure Standard - 16 bar


Body Polyester coated brass

Connection 2" BSP coupling

Available Sizes

2" (50mm)

Description

The ample space around the core of the in-line helical axial turbine allows foreign matter to pass through the meter without clogging.

Standards

ISO 4064, EEC

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Dimensions

Irrigation & Agriculture Water Meter - Model WMR Performance data

Head Loss CurveInstallation Requirements

• The water meter may be installed in any position. For non-horizontal position the flow shall be upwards.

• The meter shall be full of water while operating.• Prior to installation of a meter the pipeline shall be

thoroughly flushed.• Straight pipe section of the same diameter D as

the meter, having lengths of 10D and 5D shall be installed upstream and downstream of the meter respectively.

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Woltman TurboWater Meter - Model WT II

Features

• High accuracy, low loss of head and high immunity against abrasive media in the water due to double magnetic coupling. This unique construction leaves only one moving element, the impeller, in contact with water. The next moving components, including the worm & worm wheel, are kept in a sealed, dry compartment and have no contact with any abrasive media present in the water.

• Tungsten carbide impeller shaft tips & bearings for negligible wear in Heavy Duty use are standard.

• A wide selection of sealed, magnetically coupled registers, adaptable to �G and 3G technologies, as well as different electrical output versions, single or multiple, are available.

• Registers are: Stainless steel/glass encapsulated and guaranteed against fogging.

Description

A family of compact size Woltman water meters with field interchangeable lightweight measuring units.

Available Sizes

2” -12” (50mm - 300mm)


Maximum Working Pressure Standard - 16 bar Upon request – 25 bar


Body Cast iron, polyester coated. Optional - bronze (AWWA standard)

Connection Flanges according to ISO, BS 10, AWWA or others

Applications

Water supply networks, agricultural application and industrial use.

Standards

ISO 4064, AWWA, EEC

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Dimensions

Woltman TurboWater Meter - Model WT II

Performance data

Head Loss Curve

Installation Requirements• The water meter may be installed in any position. For non-horizontal positions the flow shall be upwards.• The meter shall be full of water while operating.• Prior to installation of a meter, the pipeline shall be thoroughly flushed.• Straight pipe section of the same diameter D as the meter, having length of 5D and �D shall be installed upstream and downstream of the meter respectively.

Flow Limit

9

Woltman Silver TurboWater Meter - Model WST SB

Features

In addition to the features offered by Arad’s traditional Woltman Turbine meter, the Woltman Silver Turbo (WST) offers the following:• Accuracy – The WST’s accuracy curve is the widest known in

the market: The minimum flow rate is 35%-5�% below the ISO standard for such meters and the maximum flow rate is 150%-�33% above it. The combination of these unique features allows the use of the WST in broader applications and in extreme situations. High accuracy at very low flow rate assures minimize losses of unmeasured water (R-1�0)

• Wide measuring rate - possible to measure very high flow rate• No sensitivity to working conditions like vibrations• No sensitivity to humidity conditions (even if dry chamber is full

of water)• The worm assy. is in a separate kit, which enable easy

replacement if necessary• Easy assembly process• Resistance – Bearings and materials used in the WST have

been proved to ensure durability far beyond the ISO Standard requirement. This feature ensures that the meter can function in extreme conditions where other meters fail to maintain a sufficient level of accuracy.Longer life expectancy than similar meters in the market

• Magnetic Coupling – The WST, like its predecessor, the Woltman Turbo meter - has a unique measuring unit, in which only one moving element, the impeller, is in contact with the water. The other moving components, including the worm & transmission gear, are kept sealed inside a dry compartment and have no contact with any of the abrasive elements present in the water.

• WST has repelling magnets installed in the impeller and the transmitting gear, instead of the attracting magnets installed in the WT

• Compatibility – The WST is also available with EV, EF, Dialog �G, Dialog 3G, MPE, DPE etc. The WST’s measuring unit can be installed in any of the existing Arad WT models.

Description

The new Woltman Silver Turbo – WST is the latest state of the art meter developed by ARAD’s R&D department.Advanced methods and technologies were implemented in order to present a product much superior to those found in the market today.

Available Sizes2” - 8” (50mm - 200mm)

Technical SpecificationsMaximum Working Pressure Standard - 16 bar Upon request – 25 bar


Body Cast iron, polyester coated. Optional - bronze (AWWA std.).

Connection Flanges according to ISO, BS 10, AWWA or others.

Applications

Water supply networks, agricultural applications and industrial use.

StandardsISO 4064, AWWA, EEC

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Dimensions

Woltman Silver TurboWater Meter - Model WST SB

Performance data

Head Loss Curve Installation Requirements

• The water meter may be installed in any position. For non-horizontal positions the flow shall be upwards.• The meter shall be full of water while operating.• Prior to installation of a meter, the pipeline shall be thoroughly flushed.• Straight pipe section of the same diameter D as the meter, having length of 5D and �D shall be installed upstream and downstream of the meter respectively.

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Plastic Fertilizer Meter Model SF

Features

• Mechanical register with totalizer, 3 pointers and leakage detector

• High accuracy.• Corrosion resistant plastic components.• Small & lightweight.

Description

The SF is a fertilizer & chemical solutions meter with electrical output and a totalizing register.The impeller is the only moving part, inside the meter, that comes into contact with the liquid.

Available Sizes

1/2” (15mm)



Maximum Working Temperature 50°C

Body PPS

Connection 3/4” BSP

Electrical output 0.1, 1, 10, 100 liter/pulse

Applications

• Fertilizing control in automated irrigation systems.• Industrial applications involving corrosive liquids.

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Dimensions

Plastic Fertilizer Meter Model SF

Performance data

Head Loss Curve

Installation Requirements

The fertilizer meter should be installed in horizontal position.

Accuracy Cutve

1. SF Fertilizer Meter2. Irrigation computer3. Fertilizer tank4. Hydraulic valve5. Water meter6. Hydraulic valve7. Flow limiter valve8. Fertilizer Pump9. 75 mm damping pipe

Installation Scheme

13

Plastic Body LiquidChemical Meter - Model PB

Features

• The impeller is corrosion resistant and is the only moving element that comes in contact with the liquid.

• Electrical output (EV).

Description

The PB is an angle type, plastic body, multi-jet liquid chemical meter.

Available Sizes

3/4” - 1” (20 - 25mm)




Body PVC

Connection 1” BSP

Electrical output 1, 10, 100 liter/pulse

Applications

Measuring flow of fertilizer solutions, for agriculture, distilled water, seawater and many other diluted solutions.

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Dimensions

Plastic Body LiquidChemical Meter - Model PB

Performance data

Head Loss Curve


The meter should be installed with dial face in horizontal position.

Accuracy Cutve

15

DISHNONFertilizer meter with electrical output - Model KD

Features

• Compatible with virtually any type of automated control system

• High accuracy• Dry contact electrical output• Corrosion resistant plastic and metal components

Applications

• Automated irrigation systems• Automated industrial applications using corrosive liquids




Body Corrosion resistant plastic

Connection 3/4” BSP

Available Sizes

1/2” (15mm)

Description

The DISHNON is a small meter, which is resistant to fertilizer and similar chemicals and which transmits electrical data to automated control systems. The DISHNON contains a small measuring chamber and a magnetic proximity switch made of synthetic polymers and metals capable of withstanding all fertilizer materials currently in common use.

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Dimensions

DISHNONFertilizer meter with electrical output - Model KD

Performance data

Installation SchemeHead Loss Curve

Electrical output data

1. KD Fertilizer Meter2. Irrigation computer3. Fertilizer tank4. Hydraulic valve5. Water meter6. Hydraulic valve7. Flow limiter valve8. Fertilizer Pump9. 75 mm damping pipe


The fertilizer meter should be installed in horizontal position.

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DOSE-O-MATAutomatic Metering Valve - Model K/KA, KB/KBA

Features

• Simple to operate and maintain – just set it & forget about it.• High accuracy.• Rugged, heavy-duty construction.• Immune to fluctuations in line pressure.• Low loss of head.• Up to 30% saving compared to time based irrigation.• Wide variety of models & sizes – suitable for virtually all irrigation

applications.• Can function together with other units as part of an automatic,

sequential irrigation system.

Description

• The Dose-O-Mat line of automatic metering valves provides a reliable and economical solution for a wide variety of irrigation applications.

• A variety of models and sizes are available to meet virtually any operational requirements and budget.

• The desired quantity is set using the volume control dial, according to local crop and soil. It automatically closes the valve once the pre-set quantity of water has passed through the unit.

• Dose-O-Mat units of sizes 11�/" and larger, contain hydraulic valves and may be installed either as single points of control or in groups that are operated in sequence.

• Operation is extremely simple, it does not require neither skilled labor nor intensive training.

Available Sizes

K/KB - Globe type 3/4”,1”,11/2”, 2”, 3”

KA/KBA - Angle type 2”, 3”



BodyK 3/4” - 1” plastic All other models - cast iron

Connection

K 3/4” - 3/4” BSPT male thread K 1” - 1 BSPT male thread K/KB 11/2” - 11/2” male thread with coupling K/KB 2” - 2” male thread with coupling - Internal thread BSPT or NPTKB 3” - Cast-iron flanges meeting BS 10, ISO, AWWA, JIS10.

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Dimensions

DOSE-O-MATAutomatic Metering Valve - Model K/KA, KB/KBA

Performance data

Head Loss Curve Standard Scales

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DOSE-O-MATAutomatic Metering Valve - Model KBJ/KBJA

Features

• Simple to operate and maintain - just set it & forget about it.• High accuracy.• Rugged, heavy-duty construction.• Immune to fluctuations in line pressure.• Low loss of head.• Up to 30% saving compared to time based irrigation.• Wide variety of flow and pressure regulation options.• Wide variety of models & sizes - suitable for virtually all

irrigation applications.• Can function together with other units as part of an

automatic, sequential irrigation system.

Description

• The Dose-O-Mat line of automatic metering valves provides a reliable and economical solution for a wide variety of irrigation applications.

• A variety of models and sizes are available to meet virtually any operational requirements and budget.

• The desired quantity is set using the volume control dial, according to local crop and soil. It automatically closes the double chambered valve once the pre-set quantity of water has passed through the unit.

• Dose-O-Mat units that are 11�/" and larger contain a hydraulic double chamber valve and may be installed either as single points of control or in groups that operate are in sequence.

• Operation is extremely simple, it does not require neither skilled labor nor intensive training.


Maximum Working Pressure 16 Bar

Maximum Working Temperature

Body Cast iron body

ConnectionKBJ 11/2” - 11/2” BSP male thread with coupling. KBJ/KBJA 2” - 2” BSP male thread with coupling - Internal thread 2” BSPT or 2” NPTKBJ/ KBJA 3”- 8” - Cast iron flanges meeting BS 10, ISO, AWWA, JIS10.

Available Sizes

KBJ - Globe type: 11/2”,2”,3”, 4”, 6”, 8”

KBJA - Angle type: 2”, 3”, 4”, 6”, 8”

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Dimensions

DOSE-O-MATAutomatic Metering Valve - Model KBJ/KBJA

Performance data

Standard Scales Head Loss Curve

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HYDROMETERModel BM/BMA

Features

• Integrated design minimizes installation space. • Specifically designed for use in automated remote control

environments. • Wide variety of flow and pressure regulation options. • Double-chambered hydraulic valve designed for high-pressure

operation. • Rugged, heavy-duty construction. • Low loss of head. • Wide range of sizes - suitable for virtually any application

Applications

The BM/BMA hydrometers series are designed for remote control irrigation and for industrial applications. The hydrometer is especially suited for automated operation. The hydrometer may be used in a variety of pressure and flow regulation applications such as:• Pressure sustaining & reducing• Flow regulation• Combined pressure and flow regulation• Dual stage operation

Description

• The hydrometer combines a water meter and a hydraulic valve in a single unit.

• The valve is double-chambered and is especially designed for high-pressure operation.

• Pilot valves and solenoid valves enable remote and automatic transmission of hydraulic commands to the hydrometer.

• Hermetically sealed register.• The impeller is the only moving part in contact with the water. • The meter contains a rotating leakage indicator as well as

a totalizer that displays cumulative volume.• The meter electronically transmits flow data to the

remote control computer. • The hydrometer is available in globe type and angle type

models in a variety of sizes.

Standards

EEC approval (class A)

Available Sizes

BM - Globe type 11/2”,2”,3”, 4”, 6”, 8”

BMA - Angle type 2”, 3”, 4”, 6”, 8”


Maximum Working Pressure 16 Bar

BodyPolyester coated cast iron bodyReinforced natural rubber valve diaphragm.

ConnectionFlanges: AWWA, ISO, BS, other upon requestThreaded: Male BSP 11/2”-2” Female BSPT or NPT 2”

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Dimensions

HYDROMETERModel BM/BMA Performance data

Head Loss Curve

Electrical output

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Water Meters with Electrical Output(All Types & Sizes) - Model ECM

Application Examples

1. Remote ReadingIn combination with a remote reading system, or computerized data acquisition system, it is possible to collect and process water usage data in multi-apartment houses, in places with no access, or wherever it is required to bring all data to one point.

2. Flowrate MeasuringWith the appropriate type of electrical output it is possible to obtain on-line information about the flowrate which can be displayed, stored or both.

3. Flowrate ControlWith the appropriate type of electrical output and additional electronic control device it is possible to perform various functions like the operation of valves, pumps or alarm signals according to various preset levels of flowrate.

4. Bi-directional Flow MeasurementWith the appropriate electrical output and an additional electronic module it is possible to distinguish between flow directions, to measure and record flow rates and volumes passed in each direction.

5. BatchingFeeding electrical output to a batching controller enables pre-setting and delivering of accurate volumes of water in irrigation systems, industrial process etc.

Description

The constantly growing penetration of automation and computerized data processing into water usage, in agriculture, industry, urbanic water supply systems and any other field where more is required than just the traditional mechanical register of water meters, creates a high demand for measuring instruments which are able to provide electrical information about the flow.Arad Water Meters equipped with electrical output devices combine the high reliability of the hermetically sealed, magnetically driven register with a wide variety of electric output options.All existing Arad Water Meters with magnetic registers can be easily upgraded to include electrical output.

Electrical Output Types

Two types of outputs exist for various functions as follows:

1. “VOLUME” output - for functions related only to the measured volume.

Transducer: Reed Switch. Designation: EV�. “FLOWRATE” output - for functions related to

the rate of change in the flowing volumes. Transducer: Photo Diode Designation: EF3. "VOLUME" output of 110/ of first pointer

volume. Transducer: Photo Diode Designation: EF-P

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Transducer Types - Description & Specifications

1. Reed Switch (EV) SensorA magnet activates this sensor. It acts as a “Dry Contact” and does not consume electric power. This is the most suitable sensor for “VOLUME” related functions and in such applications its operating life is practically unlimited (ca. 10� cycles).

Electrical specifications:a. Max. contact current - 50 Mab. Max. contact voltage - �� VDC

2. Photo-Diode (EF) SensorThis sensor combines an IR light source and a light sensitive diode in one package. Signals are created by letting the light pass through, or reflected from a rotating element in the register in an interrupted mode. It requires a constant supply of power.Electrical specifications:a. Current supplies - �0•30 mA through a resistor (see following table for values). Lead color code - yellow.b. Output - open collector. Max. Load - � mA. Lead color code - transparent.c. Circuit diagram: Reed switches

d. Recommended resistor values table:


NOTE: Correct polarity of the leads should be checked carefully to prevent damage of the sensor.

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1. REED-SWITCH - VOLUME OUTPUTA 3 pointer register with magnet installed on one of them.Output definition: “Volume output”. Output type: EV.The reed switch sensor is installed in hermetically sealed transparent plastic cover that can be mounted on the register in any one of 3 positions facing the pointer with the magnet.3 values of output are thus available in 1:10:100 ratios.

REED-SWITCH - VOLUME OUTPUT x 2Output definition: “volume output”. Output type: EV-D.The output device contains � reed switches. All the components are sealed within a plastic module.A unique feature of this unit is the immunity from conditions that might create false pulses due to back and forth fluctuations of standing water in pipe line containing air pockets, or where mechanical vibrations of the pipe exist.

2. PHOTO-DIODE – VOLUME OUTPUTA 3 pointer register with a serrated wheel on the first pointer shaft for activating a photo-diode sensor.Output definition: “Volume output”. Output type: EF-P.The serrated wheel has 10 “teeth” creating 10 signals per revolution, each signal represents 110/ the full-scale value at this position in the register.

3. PHOTO-DIODE - FLOWRATE OUTPUTA 3 pointer register with a serrated wheel mounted on the central shaft of the register for activating a photo-diode sensor.Output definition: “Flowrate output”. Output type: EF.The sensor is installed and hermetically sealed within a transparent plastic cover. The high number of “teeth” and the relatively high speed of the central shaft create a rapid stream of signals in frequency proportional to the rate of flow. Fed into suitable electronic units these signals are translated into flowrate values that can be expressed in any desirable units.

4. DPE - DUAL PURPOSE ELECTRONICElectronic register showing rate of flow and accumulated volume. The register has LCD with � digits. The register has interchangeable presentation (every 30 seconds) between the rate of flow and volume. Mounted inside stainless steel vacuumed encapsulated cup with glass lens, hermetically sealed IP ��. Can be installed on any Arad meter and hydrometer. Can be programmed for various units:Flow Rate: GPM, m3/h, liter/secVolume: Gallons, Cubic Feet, Acre Feet, m3


Registers Types

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General Remarks Concerning the Various Types of Electrical Outputs

1. All the sensors are mounted on the register in a non-invasive mode.�. All types of outputs may be installed on all ARAD water meters.3. All “Volume outputs” sensors of types EV and EV-D may be installed or replaced without disassembling the register.

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water meters catalogue - netafim catalogue.pdf · dimensions irrigation & agriculture water...

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