HYDROMETERSMOST RELIABLE COMBINATION MASTER VALVE, WATER METER AND FLOW SENSOR

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HYDROMETERS Combination

- Master valve- Water meter- Flow sensor

Available sizes 1½” to 8”:

- 1½” and 2” are threaded- 3” to 8” are flanged

Accommodate flow ranges from 1.8 gpm to 1500 GPM

3” Hydrometer

1 1/2” Hydrometer

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HOW THEY WORK

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APPLICATIONSMASTER VALVE, FLOW SENSOR COMBINATION Ideal for places where space is limited Requires no straight pipe upstream or downstream for

accurate measuring-- ± 2% in accuracy Fully compatible with most central control systems Available configurations:

- Manual Electric Normally Closed (-MEL)- Manual Electric Normally Open (-MEL-NO)- Pressure Reducing Electric Normally Closed (-PRMEL)- Pressure Reducing Electric Normally Open (-PRMEL-NO)

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APPLICATIONSFITS NICELY INTO A STANDARD VALVE BOX

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HYDRAULIC VALVE PERFORMANCE Precision hydraulic valve and water

meter in a single unit Perfect as a master valve and flow

sensor Saves space and installation costs Rugged heavy duty construction

3” Hydrometer

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HYDROMETER FEATURES Double chamber valve for positive opening and

closing – no springs required 6” Hydrometer is single chamber Adding pilot valves and solenoids enables remote

and automatic operation Hermetically sealed register – just one part

touches water Optional control functions

- Manual Electric- Pressure reducing manual electric- Other configurations upon request

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HYDROMETER FEATURES

Upper and lower valve

chamber

Straightening vanesImpeller

Hermetically sealed register in a dry

compartment

Straightening vanes allow compact installation - no upstream or downstream straight pipe requirements

Low head loss Ideal for high pressure

applications

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HYDROMETER SPECIFICATIONS

Maximum Working Pressure 235 psi

Minimum Working Pressure 14 psi

Maximum Liquid Temperature 140° F

Body Material Cast Iron with Epoxy Coating

Connections Flanged, Threaded

Diaphragm Reinforced Natural Rubber

SPECIFICATIONS

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INSTALLATION REQUIREMENTS Must install upright Pipeline should be thoroughly

flushed before installation No straight pipe installation

requirements Install proper size and type of air

vents to eliminate air

3” HydrometerStraight Pipe Install:

Upstream: 0 x D Downstream: 0 x D

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METER REGISTER WITH PULSE OUTPUT Pulse output is standard Allows for communicating

with most central controllers, data loggers, and monitoring equipment

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PULSE OUTPUT MODELS AVAILABLE Low frequency “dry contact” using a

reed switch - 1 or 10 gallons per pulse

Photo diode—higher frequency than dry contact by a factor of 10 - 0.1 to 1 gallon pulse

High frequency photo diode provides from 10 to 200 pulses per second (depending on the flow rate)

Register with Reed Switch

Register with Photo Diode Output

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RECOMMENDED REGISTER OUTPUT

Recommended Register Type.

MANUFACTURERCONTROLLER

MODELRECOMMENDEDREGISTER TYPE

Baseline Basestation PDHHunter ACC 2-Wire PDH

Rain Bird MDC & Maxi RSSignature All Models RS

Sentinel PDHTDC 2-Wire PDH

RS (1” to 4”)PD (6” and 8”)

Toro

Toro Rainmaster All Models

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HYDROMETER PERFORMANCE DATA

Lowest Flow Lowest Flow Nominal Flow Maximum Flow Within ± 5% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy

1 1/2" 1.8 GPM 4.4 GPM 44 GPM 55 GPM

2" 5.3 GPM 20 GPM 66 GPM 95 GPM

3" 14 GPM 53 GPM 176 GPM 220 GPM

4" 21 GPM 79 GPM 264 GPM 380 GPM

6" 53 GPM 198 GPM 660 GPM 860 GPM

SizeLowest Flow Lowest Flow Nominal Flow Maximum Flow

Within ± 5% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy

1 1/2" 1.8 GPM 4.4 GPM 44 GPM 55 GPM

2" 5.3 GPM 20 GPM 66 GPM 95 GPM

3" 14 GPM 53 GPM 176 GPM 220 GPM

4" 21 GPM 79 GPM 264 GPM 380 GPM

6" 53 GPM 198 GPM 660 GPM 860 GPM

Size

1½” Globe Hydrometer 3” Globe Hydrometer

Cv Flow Rate @ 1.0 psi

of Headloss1 1/2" 23 GPM

2" 35 GPM

3" 92 GPM

4" 139 GPM

6" 347 GPM

8" 624 GPM

Size

Cv Flow Rate @ 1.0 psi

of Headloss1 1/2" 23 GPM

2" 35 GPM

3" 92 GPM

4" 139 GPM

6" 347 GPM

8" 624 GPM

Size

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WHY USE A HYDROMETERSAVES SPACE Combination master valve, water meter and flow sensor all in

one unit Does not require any upstream or downstream straight pipe for

proper function.

ACCURACY ACROSS A WIDE FLOW RANGE Accuracy is ±2% across the entire flow range—offset is = 0

WATER METER CANNOT LOOSE DATA Standard with odometer register