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Variable Area Flow Meters

67 Products
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The OMEGA's precision variable-area flow meters for air, water, and gases feature an easy-to-read millimeter scale and are supplied with correlation charts for air and water

Product Number Float Type Materials Valve Included Valve Type Water Flow, Max
FL-3763ST
$406.48
Available
in 4 weeks
316 Stainless Steel
316 Stainless Steel, Stainless Steel
true
8-Turn Valve
1261 SCCM
FL-3607G
$243.89
Available
in 4 weeks
Borosilicate Glass
Aluminum
true
8-Turn Valve
0.07 SCCM
FL-3610C
$243.89
Available
in 4 weeks
Carboloy
Aluminum
true
8-Turn Valve
20.8 SCCM
FL-3610G
$247.11
Available
in 4 weeks
Borosilicate Glass
Aluminum
true
8-Turn Valve
2.64 SCCM
FL-3613G
$247.11
Available
in 4 weeks
Borosilicate Glass
Aluminum
true
8-Turn Valve
1.75 SCCM
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FL7000 flow meters are precisely machined from solid acrylic blocks. They are available in 50, 75, 100, 127, and 250 mm scale lengths with accuracies between 2 and 6%.

Product Number Air Flow, Max Process Connection Size Scale Length Water Flow, Max
FL7602
$264.85
Available
in 5 weeks
0 m³/s
3/4 in
250 mm
3.5 GPM
FL7201
$106.30
Available
in 5 weeks
0 m³/s
1/4 in
50 mm
7 gal/h
FL7202
$103.97
Available
in 6 weeks
0 m³/s
1/4 in
50 mm
12 gal/h
FL7203
$98.40
Available
in 6 weeks
0 m³/s
1/4 in
50 mm
20 gal/h
FL7204
$112.15
Available
in 5 weeks
0 m³/s
1/4 in
50 mm
50 gal/h
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The Series HFT In-Line Transmitters offer reliable flow rate monitoring for waste water and process control, featuring versatile installation and rugged construction.

Product Number Process Connection Size Volumetric Flow Rate, Max
HFT-1112
$1.00
Available
in 0 week
1/4 in
12 SCFM
HFT-1123
$1.00
Available
in 0 week
1/4 in
23 SCFM
HFT-2205
$1,868.00
Available
in 5 weeks
1/2 in
5 GPM
HFT-2315
$1.00
Available
in 0 week
3/4 in
15 GPM
HFT-2320
$1.00
Available
in 0 week
3/4 in
20 GPM
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The FLMW and FLMH flowmeters can be installed in the fluid line without flow straighteners. The spring-and-piston type assembly protects them against changes in viscosity.

Product Number Materials Output Signal Process Connection Size Scale Media Calibration Water Flow, Max
FLMH-1002AL
$532.44
Available
in 4 weeks
Aluminum
N/A
1 in
Oil
2 GPM
FLMH-1002BR
$689.87
Available
in 4 weeks
Brass
N/A
1 in
Oil
2 GPM
FLMH-1002SS
$1,296.08
Available
in 4 weeks
Stainless Steel
N/A
1 in
Oil
2 GPM
FLMH-1005AL
$523.16
Available
in 4 weeks
Aluminum
N/A
1 in
Oil
5 GPM
FLMH-1005BR
$689.87
Available
in 4 weeks
Brass
N/A
1 in
Oil
5 GPM
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All plastic Variable Area Flow Meters for water or water like liquid flow measurement applications.

Product Number Water Flow, Max
FL-86A
$624.06
Available
in 7 weeks
1 GPM
FL-86B
$866.04
1  In Stock
2.4 GPM
FL-86C
$909.75
Available
in 7 weeks
5 GPM
FL-86D
$1,211.68
Available
in 7 weeks
10 GPM
FL-86E
$1,189.82
Available
in 7 weeks
20 GPM
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The FLMG flow meters feature rugged construction and direct-reading flow rates of air. The units are calibrated at 100 psi pressure, idea for most compressed air applications.

Product Number Air Flow, Max Materials Output Signal Process Connection Size Switch Type
FLMG-10050AL
$585.69
Available
in 4 weeks
50 SCFM
Aluminum
N/A
1 in
N/A
FLMG-10050BR
$787.33
Available
in 4 weeks
50 SCFM
Brass
N/A
1 in
N/A
FLMG-10050SS
$1,479.16
Available
in 4 weeks
50 SCFM
Stainless Steel
N/A
1 in
N/A
FLMG-10100AL
$585.69
Available
in 4 weeks
100 SCFM
Aluminum
N/A
1 in
N/A
FLMG-10100BR
$772.36
Available
in 4 weeks
100 SCFM
Brass
N/A
1 in
N/A
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OMEGA's FL-6400A in-line flowmeters are designed for use with many caustic or corrosive fluids. These meters feature SS construction and can be mounted in any position.

Product Number Water Flow, Max
FL-6402A-316
$1,291.52
Available
in 6 weeks
2 GPM
FL-6404A-316
$1,291.52
3  In Stock
5 GPM
FL-6412A-316
$1,291.52
Available
in 6 weeks
10 GPM
FL-6416A-316
$1,291.52
Available
in 6 weeks
15 GPM
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The FL46300 Series of liquid in-line flow meters offer handmade quality, combined with excellent accuracy and repeatability are machined of high quality acrylic rod stock.

Product Number Water Flow, Max
FL46305
Not Available
Discontinued
3 GPM
FL46308
Not Available
Discontinued
17 GPM
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This rugged direct-reading flowmeter monitors air flow rates to determine optimum performance, flow regulator settings, or pneumatic system performance.

Product Number Air Flow, Max Process Connection Size
FL6711A
$402.51
Available
in 6 weeks
100 SCFM
1/2 in
FL6715A
$402.51
Available
in 6 weeks
150 SCFM
1/2 in
FL6760A
$402.51
Available
in 6 weeks
50 SCFM
1/2 in
FL7722A
$560.33
Available
in 3 weeks
250 SCFM
3/4 in
FL7750A
$560.33
Available
in 3 weeks
50 SCFM
3/4 in
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The FL-W7100 Series uses a basic variable-area flowmeter design: a float and tapered tube. As a result, these meters have longer, linear scales and good pointer stability.

Product Number Water Flow, Max
FL-W7106
$1,610.91
Available
in 5 weeks
33 gal/h
FL-W7108
$1,432.82
Available
in 5 weeks
1.1 GPM
FL-W7110
$1,610.91
Available
in 5 weeks
2 GPM
FL-W7112
$1,519.55
Available
in 6 weeks
4 GPM
FL-W7114
$1,610.91
Available
in 6 weeks
6 GPM
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The FLC Series is the economical way to monitor municipal water flows, verify pump outlets and monitor fluid conditions. Piston design allows for installation in any position

Product Number Process Connection Size Scale Media Calibration Water Flow, Max
FLC-H11
$189.40
Available
in 4 weeks
1/2 in
Oil
5 GPM
FLC-H12
$189.40
Available
in 4 weeks
1/2 in
Oil
10 GPM
FLC-H13
$185.40
Available
in 4 weeks
3/4 in
Oil
10 GPM
FLC-H14
$217.56
Available
in 4 weeks
3/4 in
Oil
15 GPM
FLC-H15
$213.76
Available
in 4 weeks
1 in
Oil
15 GPM
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The OMEGA's precision variable-area flow meters for air, water, and gases have up to ± 2% of full scale accuracy. (Models ending in "07" or "45" have ± 5% FS accuracy).

Product Number Air Flow, Max Float Type Materials Valve Type
FL-3207C
$194.48
Available
in 4 weeks
32.99 SCCM
Carboloy
Acetal, Aluminum
8-Turn Valve
FL-3207G
$186.55
2  In Stock
5.77 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
FL-3210C
$197.04
2  In Stock
818 SCCM
Carboloy
Acetal, Aluminum
8-Turn Valve
FL-3210G
$197.04
5  In Stock
202 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
FL-3213G
$197.04
Available
in 4 weeks
104 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
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Oxygen Flowmeter is for medical applications and manually controlling flow from oxygen generators. Flow levels are kept stable by precision valve and knob adjustment.

Product Number Gas Flow, Max
OMA-1
$82.80
Available
in 16 weeks
1.5 l/min
OMA-2
$82.80
Available
in 16 weeks
3 l/min
OMA-3
$84.25
Available
in 16 weeks
5 l/min
OMA-4
$80.45
Available
in 16 weeks
10 l/min
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OMEGA's FL2AA Series multi-tube flow meters are convenient for applications where up to four streams of liquids or gases are to be metered in individual channels.

Product Number Air Flow, Max
FL-2AB-40ST-04C
$701.47
Available
in 5 weeks
89880 cm³/min
FL-3AA-02G-02G-02G
$953.33
Available
in 5 weeks
1086 cm³/min
FL-4AA-02SA-03C-03C-03C
$1,183.17
Available
in 5 weeks
1324 cm³/min
FL-4AB-39SA-03C-03ST-02ST
$1,309.93
Available
in 5 weeks
27514 cm³/min
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Discover the Custom Mini-Master® Flowmeters, designed for gas and liquid applications. Durable, chemical-resistant construction ensures easy cleaning and precise readings.

Product Number Gas Flow, Max Liquid Flow, Max Scale Length Scale Media Calibration Valve Type
MMA-2
$77.20
Available
in 3 weeks
1.2 SCFH
0 m³/s
2 in
Air @ 1 atm
N/A
MMA-3
$77.20
Available
in 3 weeks
2.5 SCFH
0 m³/s
2 in
Air @ 1 atm
N/A
MMA-4
$77.20
Available
in 3 weeks
5 SCFH
0 m³/s
2 in
Air @ 1 atm
N/A
MMA-5
$77.20
Available
in 3 weeks
10 SCFH
0 m³/s
2 in
Air @ 1 atm
N/A
MMA-6
$77.20
Available
in 3 weeks
20 SCFH
0 m³/s
2 in
Air @ 1 atm
N/A
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The Direct Read In-Line Variable Area flow meter features a rugged PTFE design with dual rotatable scales for precise air and water measurements, ensuring accuracy and versatility.

Product Number Materials Valve Included Water Flow, Max
FLD1001
$994.66
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
1.2 GPM
FLD1002
$981.71
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
2 GPM
FLD1003
$981.71
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
3 GPM
FLD1004
$981.71
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
4 GPM
FLD1005
$981.71
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
5 GPM
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Flow Meters for air and water applications. Accuracy: ± 3% of full scale Repeatability: ± 1% Wetted Parts:316 SS, borosilicate glass, EPR O-Rings Max. Temperature: 200°F

Product Number Air Flow, Max Float Type Process Connection Size Scale Media Calibration Water Flow, Max
FL601G
$1,513.60
Available
in 6 weeks
0 m³/s
Rib-Guided
1/2 in
Water
0.74 GPM
FL602G
$1,442.08
Available
in 6 weeks
0 m³/s
Rib-Guided
1/2 in
Water
2 GPM
FL603G
$1,751.94
1  In Stock
0 m³/s
Rib-Guided
1 in
Water
5 GPM
FL604P
$1,668.52
Available
in 6 weeks
0 m³/s
Pole-Guided
1 in
Water
26 GPM
FL605P
$3,076.83
1  In Stock
0 m³/s
Pole-Guided
2 in
Water
61 GPM
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Variable-Area Flowmeter for Oil measures oil rates. Comes calibrated for horizontal in line mounting. Go for heat exchangers, oil & gas equipment, and backflow prevention.

Product Number Process Connection Size Volumetric Flow Rate, Max
DTFO-1B-4O
$1.00
Available
in 0 week
1/4 in
4 GPM
DTFO-2B-4O
$1.00
Available
in 0 week
1/2 in
4 GPM
DTFO-2B-8O
$1.00
Available
in 0 week
1/2 in
8 GPM
DTFO-3S-15O
$1.00
Available
in 0 week
1 in
15 GPM
DTFO-3S-20O
$1.00
Available
in 0 week
1 in
20 GPM
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Discover the Oxygen Direct Read Panel Mount Flow Meters, designed for precise flow measurement in various applications, ensuring reliability and ease of use.

Product Number Float Type Oxygen Flow, Max Scale Length Valve Type
FLDO3301G
$401.96
Available
in 4 weeks
Borosilicate Glass
1 l/min
65 mm
6-Turn Valve
FLDO3305G
$401.96
Available
in 4 weeks
Borosilicate Glass
50 ml/min
65 mm
6-Turn Valve
FLDO3501S
$512.15
Available
in 4 weeks
Sapphire
1 l/min
150 mm
6-Turn Valve
FLDO3502S
$518.91
1  In Stock
Sapphire
5 l/min
150 mm
6-Turn Valve
FLDO3503C
$512.15
Available
in 4 weeks
Carboloy
10 l/min
150 mm
6-Turn Valve
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Made of PTFE, PFA, and PCTFE, the Model FL-10 liquid flow meter is excellent for high-purity flow applications or with corrosive liquids. Available with or without a valve.

Product Number Process Connection Size Valve Included Water Flow, Max
FL-10A
$417.56
Available
in 5 weeks
1/4 in
false
125 ml/min
FL-10B
$417.56
Available
in 5 weeks
1/4 in
false
250 ml/min
FL-10C
$417.56
Available
in 5 weeks
1/4 in
false
400 ml/min
FL-10D
$428.57
Available
in 5 weeks
1/4 in
false
500 ml/min
FL-10E
$417.56
Available
in 5 weeks
1/4 in
false
1000 ml/min
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Variable Area Flow Meters

Variable area flow meters measure liquid and gas flow rates accurately for industrial, commerci...
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