®
Technical Specifications
FM144
®
INSTRUMENTS, LLC.
Product Data Sheet
PDS-144
2026-07-31
Waterworks Intake
Meter
Electronic Propeller Meter
Description
A Waterworks Intake Meter is an economical
and easily installed meter for large volume flow
measurement at the discharge end of a closed
conduit, inverted siphon, and reservoirs.
Existing structures often provide an excellent
mounting for the meter.
Electronic Design
The Model FM144 features the FT194-II battery
powered electronic rate/totalizer which senses
the rotation of the propeller by means of a
magnetic pickup sensor located in the gearbox.
The rate/totalizer and pickup are completely
isolated from the flow stream.
Fewer moving parts combined with a proven
Sparling design relluts in less wear, reduced
maintenace costs and longer life.
Certified Accuracy
Accuracy is within 2% of actual flow for the
specified meter range. This accuracy is
guaranteed by certified wet calibration at three
test points in Sparling's NIST traceable primary
flow laboratory. Each meter is tested at low
flow, mid-range, and high flow. A test
certificate is provided with each meter.
Rate Indication and Totalizer
The rate is shown on a 4-digit LCD readout and
the cumulative total flow is shown on a 8-digit
LCD straight reading totalizer in any standard
volumetric units.
The FT194 is ordered separately, it can be
mounted integrally, remotely and with the
outputs: 4-20mA and Pulse Output.
Minimum Flows
- Minimum flows are required
before accurate registration can be obtained in
standard volumetric units.
Maximum Flows
- The maximum flow ranges
can be safely exceeded by 50% when used
intermittently.
Materials
All materials used in manufacturing are highly
resistant to normal water corrosion and
recommended for water works application.
Special materials are utilized for highly
corrosive conditions. Liquid temperatures
should not exceed 100°F.
Propeller Design Minimizes Maintenance
- The
propeller is made of a tough , durable,
abrasion-resistant material. The conical shape
and the ability of the material to flex under
stress allows the propeller to shed debris such
as clumps of algae or rags without damage.
Rugged Construction Guarantees Long Life
-
Materials of construction have been selected to
provide many years of service. Shafts and
bearings are stainless steel, bearing housings
are Brass (10" - 30") and Cast Iron (36" - 72").
Drop pipes are Brass (10" - 30") and Steel (36" -
72").
Installation
The meter propeller, fully submerged and
facing the center of the flow at the discharge
end of a pipe, closed conduit, or inverted
siphon, is suspended from a pipe column
attached to a wall or simple support structure.
Concrete pipe or a simple culvert structrue is a
satisfactory meter tube. Gate valves or other
obstructions should be at least ten pipe
diameters upstream from the meter.
Straightening vanes may be furnished as a
separate item to insure straight flow conditions
and accurate measurement.
®
INSTRUMENTS, LLC.
Table 1: BaseModelNumber
FM144
-
Electronic Open Flow Meterheads
Table 2: Size
10
-
10"
12
-
12"
14
-
14"
16
-
16"
18
-
18"
20
-
20"
24
-
24"
30
-
30"
36
-
36"
42
-
42"
48
-
48"
54
-
54"
60
-
60"
66
-
66"
72
-
72"
Table 3: Mounting
6
-
Standard Wall Brackets
Table 4: Construction
1
-
Standard
Table 5: FlowRange
1
-
Standard Range
2
-
High Range
Table 6: Readouts
0
-
None
Table 7: Accessories
0
-
None
1
-
Bolting Vanes
Model
Size
Mount
Const
Flow
Read
Access.
FM144
10
6
1
1
0
0
Size (in)
Weight
(lbs)
B
C
E
G
H
Flow Range (GPM)
Low
Standard
10.0
90.0
9.50
2.12
16.5
4.00
8.0
125 - 1600
320 - 3000
12.0
90.0
9.50
2.12
16.5
3.00
10
150 - 2200
400 - 4000
14.0
90.0
9.50
2.12
28.0
2.00
11
250 - 3000
520 - 5000
16.0
105
12.0
2.62
28.0
5.00
13
350 - 3800
700 - 6800
18.0
105
12.0
2.62
30.0
3.00
16
450 - 4500
900 - 8100
20.0
105
12.0
2.62
33.0
2.00
16
550 - 5500
1100 - 9900
24.0
105
12.0
2.62
36.0
1.00
16
800 - 8500
1600 - 15000
30.0
115
12.0
2.62
45.0
1.00
16
1200 - 12000
3000 - 21600
36.0
350
18.1
4.38
54.0
4.00
25
1500 - 16000
3000 - 28800
42.0
350
18.1
4.38
60.0
4.00
25
2000 - 22000
4200 - 40000
48.0
580
20.0
4.50
72.0
4.00
38
2500 - 28000
5400 - 50000
54.0
580
20.0
4.50
80.0
4.00
38
3200 - 35000
6800 - 63000
60.0
580
20.0
4.50
90.0
4.00
38
4000 - 42000
8400 - 76000
66.0
580
20.0
4.50
96.0
4.00
38
4750 - 50000
10000 - 90000
72.0
580
20.0
4.50
108
4.00
38
5500 - 60000
12000 - 110000
