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Economical Pitot Tube
Flow Sensors
FPT-3000 Series
U Includes Shut-Off
Valves on Both
Pressure Connections
U Low Pressure Drop
U Low Maintenance
U Rugged Construction
Yields, Non-Clogging,
Stable Design
Applications
U Remediation
U Natural, Flare, Flue,
Stack Gas
U Boiler Feed-Water
U Cooling Water
U Superheated, Saturated,
or Geothermal Steam
U Combustion or
Compressed Air
U Oil Flow Monitoring
The FPT-3000 averaging flow
sensors are designed to be
inserted in the pipeline through
a compression fitting and are
available for pipe sizes from
2.5 to 25.4 cm (1 to 10"). All
models include convenient and
quick-acting quarter-turn ball
valves to isolate the sensor for
zeroing with 1⁄8 female NPT valve
assembly process connections.
FPT-3025 shown
smaller than actual size.
Dimensions: mm (inch)
49.21
(115⁄16)
41.27 (15⁄8) TYP
LP
44.45 (13⁄4)
The FPT-3000 Series in-line flow
sensors are two averaging pitot
tubes for compatible gases and
liquids. They provide accurate and
convenient flow rate sensing for a
schedule 40 pipe, when purchased
with a suitable differential
pressure gage with appropriate
range. Extremely reliable, proven
technology, pitot tubes, have
been used in flow measurement
for years. Multiple sensing point
measurement and built-in averaging
capability eliminates the need for
“traversing” the flowing stream
with single point velocity pressure
measurement which saves time.
Specifications
Accuracy: ±2%
Materials of Construction:
Valves: Brass with TFE seats and
BUNA-N O-Rings
Head and Sensor Tube:
304 SS
Compression Fitting: ¼ NPT
Brass
Valve Connections:
Maximum Pressure: 13.7 bar
(200 psig)
Maximum Temperature: 93.3ºC
(200ºF)
1
1
⁄8 female NPT
1
⁄4
Male
NPT
HP
11
7.94 (
42.86 (1
5
⁄16)
⁄16)
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Full Range Flows by Pipe Size (Approximate)
Gage Range
(in w.c.)
Media @ 70°F
1" 1 1 " 2" 2 " 3" 4" 6" 8" 10"
1
⁄4"
1
⁄2
1
⁄2
2 Water (gpm) 4.8 8.3 11.5 20.5 30 49 86 205 350 560
2 Air @ 14.7 psia (scfm) 19 33 42 65 113 183 330 760 1340 2130
2 Air @ 100 psig (scfm) 50 90.5 120 210 325 510 920 2050 3600 6000
5 Water (gpm) 7.7 14 18 34 47 78 138 320 560 890
5 Air @ 14.7 psia (scfm) 30 51 66 118 178 289 510 1200 2150 3400
5 Air @ 100 psig (scfm) 83 142 190 340 610 820 1600 3300 5700 10,000
10 Water (gpm) 11 19 25.5 45.5 67 110 195 450 800 1260
10 Air @ 14.7 psia (scfm) 41 72 93 163 250 410 725 1690 3040 4860
10 Air @ 100 psig (scfm) 120 205 275 470 740 1100 2000 4600 8100 15,000
25 Water (gpm) 18 32 40.5 72 108 173 310 720 1250 2000
25 Air @ 14.7 psia (scfm) 63 112 155 255 390 640 1130 2630 4860 7700
25 Air @ 100 psig (scfm) 185 325 430 760 1200 1800 3300 7200 13,000 22,000
50 Water (gpm) 25 44 57.5 100 152 247 435 1000 1800 —
50 Air @ 14.7 psia (scfm) 90 161 205 360 560 900 1600 3700 6400 —
50 Air @ 100 psig (scfm) 260 460 620 1050 1700 2600 4600 10,000 18,500 —
100 Water (gpm) 36.5 62 82 142 220 350 620 1500 — —
100 Air @ 14.7 psia (scfm) 135 230 300 505 800 1290 2290 5000 — —
100 Air @ 100 psig (scfm) 370 660 870 1500 2300 3600 6500 15,000 — —
How to Order:
Determine the pipe size into which the flow sensor will be mounted and select the corresponding size from the ordering table below.
For non-critical water and air flow monitoring applications, the chart above can be utilized for selecting a differential pressure gage for use with
the sensor. Simply locate the maximum flow rate for the media being measured under the appropriate pipe size and read the differential
pressure range in inches of water column to the left. The FPT-3000 sensor is supplied with installation and operating instructions. It also includes
complete flow conversion information for the three media conditions; water, air at STP, and air at 100 psig (shown in the chart above). This
information enables the user to create a complete differential pressure to flow rate conversion table for the sensor and differential pressure gage
employed.
To Order
Model No. Pipe Size Description Weight kg (lb)
FPT-3010
FPT-3012
FPT-3015
FPT-3020
FPT-3025
FPT-3030
FPT-3040
FPT-3060
FPT-3080
FPT-3100
Comes complete with shut-off valves on both pressure ports, compression fitting to mount, and operator’s manual.
1" Averaging pitot tube flow sensor 0.34 (0.75)
1
⁄4" Averaging pitot tube flow sensor 0.34 (0.75)
1
11⁄2" Averaging pitot tube flow sensor 0.34 (0.75)
2" Averaging pitot tube flow sensor 0.34 (0.75)
1
⁄2" Averaging pitot tube flow sensor 0.34 (0.75)
2
3" Averaging pitot tube flow sensor 0.34 (0.75)
4" Averaging pitot tube flow sensor 0.36 (0.80)
6" Averaging pitot tube flow sensor 0.36 (0.80)
8" Averaging pitot tube flow sensor 0.38 (0.85)
10" Averaging pitot tube flow sensor 0.32 (0.70)
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