Transcript Slide 1

HYDROMETERS
MOST RELIABLE COMBINATION MASTER
VALVE, WATER METER AND FLOW SENSOR
HYDROMETERS
 Combination
- Master valve
- Water meter
- Flow sensor
 Available sizes 1½” to 8”:
- 1½” and 2” are threaded
- 3” to 8” are flanged
3” Hydrometer
 Accommodate flow ranges from 1.8 gpm to
1500 GPM
1 1/2” Hydrometer
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HOW THEY WORK
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APPLICATIONS
MASTER 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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APPLICATIONS
FITS 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
 Straightening vanes allow
compact installation
- no upstream or downstream
Hermetically sealed
register in a dry
compartment
Upper and
lower valve
chamber
straight pipe requirements
 Low head loss
 Ideal for high pressure
applications
Impeller
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Straightening vanes
HYDROMETER SPECIFICATIONS
SPECIFICATIONS
Maximum Working Pressure
Minimum Working Pressure
Maximum Liquid Temperature
Body Material
Connections
Diaphragm
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235 psi
14 psi
140° F
Cast Iron with Epoxy Coating
Flanged, Threaded
Reinforced Natural Rubber
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” Hydrometer
Straight 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.
CONTROLLER
MANUFACTURER
MODEL
Baseline
Basestation
Hunter
ACC 2-Wire
Rain Bird
MDC & Maxi
Signature
All Models
Sentinel
Toro
TDC 2-Wire
Toro Rainmaster
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All Models
RECOMMENDED
REGISTER TYPE
PDH
PDH
RS
RS
PDH
PDH
RS (1” to 4”)
PD (6” and 8”)
HYDROMETER PERFORMANCE
DATA
Size
1 1/2"
2"
3"
4"
6"
Lowest Flow
Lowest Flow
Nominal Flow
Maximum Flow
Within ± 5% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy Within ± 2% Accuracy
1.8 GPM
4.4 GPM
44 GPM
55 GPM
5.3 GPM
20 GPM
66 GPM
95 GPM
14 GPM
53 GPM
176 GPM
220 GPM
21 GPM
79 GPM
264 GPM
380 GPM
53 GPM
198 GPM
660 GPM
860 GPM
Cv
Size
1 1/2"
2"
3"
4"
6"
8"
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Flow Rate @ 1.0 psi
of Headloss
23 GPM
35 GPM
92 GPM
139 GPM
347 GPM
624 GPM
1½” Globe Hydrometer
3” Globe Hydrometer
WHY USE A HYDROMETER
SAVES 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
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