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Variable Area Flow Meters

65 Products
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The FLK2000 Series has a maximum temperature rating of 140°F (60°C) and a maximum pressure rating of 125 psi and are the ideal choice for medical and laboratory applications.

Product Number Air Flow, Max Air Flow, Min Center-to-Center Length Valve Included Water Flow, Max
FLK-2211
$79.52
Available
in 10 weeks
1 l/min
0.1 l/min
3.03 in
true
0 m³/s
FLK-2201
$84.00
9  In Stock
2 SCFH
0.2 SCFH
3.03 in
true
0 m³/s
FLK-2202
$79.52
Available
in 10 weeks
3 SCFH
0.2 SCFH
3.03 in
true
0 m³/s
FLK-2203
$84.00
7  In Stock
8.5 SCFH
0.85 SCFH
3.03 in
true
0 m³/s
FLK-2205
$84.00
3  In Stock
25 SCFH
2.5 SCFH
3.03 in
true
0 m³/s
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FL4000 OEM-style acrylic flow meters are machined from solid acrylic blocks for superb durability. The rear ports extend through the panel for easy hookup.

Product Number Accuracy Air Flow, Max Materials Process Connection Size Process Connection Type Valve Included Water Flow, Max
FL4212-V
$112.46
8  In Stock
± 6 %
5 SCFH
Brass
1/4 in
NPT Female
true
0 m³/s
FL4201
$88.27
110  In Stock
± 6 %
0 m³/s
N/A
1/4 in
NPT Female
false
7 gal/h
FL4202
$88.27
Available
in 5 weeks
± 6 %
0 m³/s
N/A
1/4 in
NPT Female
false
12 gal/h
FL4203
$88.27
Available
in 5 weeks
± 6 %
0 m³/s
N/A
1/4 in
NPT Female
false
22 gal/h
FL4204
$89.44
11  In Stock
± 6 %
0 m³/s
N/A
1/4 in
NPT Female
false
44 gal/h
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The FL-6000A Series of general purpose flowmeters is designed to provide economical, accurate flow rate indication for oil and water and can be mounted in any position.

Product Number Scale Media Calibration Specific Gravity Water Flow, Max
FL-6102A
$320.37
9  In Stock
Oil
0.876
2 GPM
FL-6105A
$338.46
33  In Stock
Oil
0.876
5 GPM
FL-6110A
$338.46
Available
in 6 weeks
Oil
0.876
10 GPM
FL-6115A
$338.46
Available
in 6 weeks
Oil
0.876
15 GPM
FL-6302ABR
$400.45
Available
in 6 weeks
Water
1
2 GPM
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The FL-500 Series in-line flow meters feature rugged construction, easy installation and direct reading flow rates for water and air at atmospheric and 90 psi pressures.

Product Number Process Connection Size Process Connection Type Water Flow, Max
FL-505-BSPT
$293.06
Available
in 13 weeks
1 in
BSPT Female
5 GPM
FL-505
$277.46
3  In Stock
1 in
NPT Female
5 GPM
FL-510
$277.46
1  In Stock
1 in
NPT Female
10 GPM
FL-515
$293.06
Available
in 4 weeks
1 in
NPT Female
15 GPM
FL-530
$443.05
Available
in 13 weeks
1 1/2 in
NPT Female
30 GPM
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OMEGA's FL-75 flowmeters combine shatter resistant, non-glass construction and laboratory precision accuracy at an economical price. With Capacities: 0.5 to 200 GPM of Water

Product Number Process Connection Size Process Connection Type Water Flow, Max
FL-75F
$419.65
1  In Stock
1 1/2 in
NPT Male
40 GPM
FL-75A
$359.31
4  In Stock
1 in
NPT Female
5 GPM
FL-75B
$359.31
4  In Stock
1 in
NPT Female
10 GPM
FL-75C
$359.31
Available
in 5 weeks
1 in
NPT Female
22 GPM
FL-75D
$381.04
Available
in 6 weeks
1 in
NPT Female
30.5 GPM
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FL50000A Series flowmeters feature a rugged, one-piece acrylic body, stainless steel internal parts, rear inlet and outlet ports for panel mounting, and excellent accuracy.

Product Number Materials Process Connection Size Valve Included Water Flow, Max
FL50001A
$182.85
31  In Stock
PVC
1/4 in
false
0.25 GPM
FL50005A
$209.38
1  In Stock
Polypropylene
3/4 in
true
10 GPM
FL50007A
$262.90
4  In Stock
PVC
1 in
false
20 GPM
Product Number Nitrogen Flow, Max Scale Length Valve Included
FLDN3302G
$351.82
24  In Stock
6 ml/min
65 mm
true
FLDN3304S
$333.01
1  In Stock
60 ml/min
65 mm
true
FLDN3305G
$351.82
2  In Stock
120 ml/min
65 mm
true
FLDN3306S
$333.01
2  In Stock
200 ml/min
65 mm
true
FLDN3502G
$429.91
4  In Stock
2 l/min
150 mm
true
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The OMEGA's FL-9000 EZ-View flowmeters provide accurate, in-line indication of oil or water flow rates at an economical cost and can be mounted with no straight pipe runs

Product Number Process Connection Size Process Connection Type Scale Media Calibration Water Flow, Max
FL-9004
$103.62
8  In Stock
1 in
NPT Male
Water
4 GPM
FL-9007
$103.62
Available
in 3 weeks
1 in
NPT Male
Water
7 GPM
FL-9010
$103.62
1  In Stock
1 in
NPT Male
Water
10 GPM
FL-9016
$103.62
2  In Stock
1 in
NPT Male
Water
16 GPM
FL-9018
$103.62
Available
in 3 weeks
1 in
NPT Male
Water
18 GPM
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The FLD100 Heavy-duty flowmeters are fully enclosed in a brushed stainless steel case. Ideal for industrial applications with flow rates up to 116 GPM and 250 SCFM.

Product Number Air Flow, Max Water Flow, Max
FLD101
$750.85
1  In Stock
1.2 SCFM
0.25 GPM
FLD102
$750.85
Available
in 5 weeks
1.7 SCFM
0.36 GPM
FLD103
$750.85
7  In Stock
3.3 SCFM
0.76 GPM
FLD104
$760.75
Available
in 5 weeks
4.2 SCFM
1 GPM
FLD105
$760.75
Available
in 5 weeks
6.5 SCFM
1.5 GPM
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Product Number Materials Valve Included Water Flow, Max
FLD1001
$870.59
1  In Stock
Stainless Steel, Polycarbonate, FKM
true
1.2 GPM
FLD1002
$859.26
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
2 GPM
FLD1003
$859.26
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
3 GPM
FLD1004
$859.26
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
4 GPM
FLD1005
$859.26
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
5 GPM
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The FL-2000 Series offers a wide variety of precision flow meters for use in medical, industrial, chemical, and laboratory applications at an economical price.

Product Number Accuracy Air Flow, Max Materials Mounting Orientation Process Connection Size Valve Included Water Flow, Max
FL-2012
$90.29
8  In Stock
± 5 %
2.5 l/min
Acrylic, Brass
Panel Mount
1/8 in
true
0 m³/s
FL-2001
$95.38
Available
in 15 weeks
± 5 %
1 SCFH
Acrylic, Brass
Panel Mount
1/8 in
true
0 m³/s
FL-2002
$95.38
Available
in 5 days
± 5 %
2 SCFH
Acrylic, Brass
Panel Mount
1/8 in
true
0 m³/s
FL-2003
$90.29
5  In Stock
± 5 %
5 SCFH
Acrylic, Brass
Panel Mount
1/8 in
true
0 m³/s
FL-2004
$95.38
Available
in 5 days
± 5 %
10 SCFH
Acrylic, Brass
Panel Mount
1/8 in
true
0 m³/s
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The FL-9000 Series flowmeter are rugged, low-cost direct reading industrial class flowmeters that are simple to install. They can be mounted in any position

Product Number Process Connection Size Process Connection Type Scale Media Calibration Water Flow, Max
FL-9602
$554.83
Available
in 3 weeks
1 1/2 in
NPT Female
Water
50 GPM
FL-9301
$547.91
Available
in 3 weeks
1 1/2 in
NPT Female
Oil
25 GPM
FL-9302
$547.91
Available
in 3 weeks
1 1/2 in
NPT Female
Oil
50 GPM
FL-9303
$547.91
Available
in 3 weeks
1 1/2 in
NPT Female
Oil
75 GPM
FL-9304
$547.91
Available
in 3 weeks
1 1/2 in
NPT Female
Oil
100 GPM
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Product Number Dual Range Gas Flow, Max Liquid Flow, Max Process Connection Size Valve Type
RMA-1
$59.00
Available
in 3 weeks
No
0.4 SCFH
0 m³/s
1/8 in
No Valve
RMA-2
$59.00
Available
in 3 weeks
No
1 SCFH
0 m³/s
1/8 in
No Valve
RMA-3
$59.00
Available
in 3 weeks
No
2 SCFH
0 m³/s
1/8 in
No Valve
RMA-4
$59.00
14  In Stock
No
5 SCFH
0 m³/s
1/8 in
No Valve
RMA-5
$59.00
15  In Stock
No
10 SCFH
0 m³/s
1/8 in
No Valve
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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-W15
$257.05
Available
in 4 weeks
1 in
Water
15 GPM
FLC-H11
$165.76
Available
in 4 weeks
1/2 in
Oil
5 GPM
FLC-H12
$165.76
Available
in 4 weeks
1/2 in
Oil
10 GPM
FLC-H13
$162.27
Available
in 4 weeks
3/4 in
Oil
10 GPM
FLC-H14
$190.42
Available
in 4 weeks
3/4 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
$170.21
Available
in 4 weeks
32.99 SCCM
Carboloy
Acetal, Aluminum
8-Turn Valve
FL-3207G
$163.28
3  In Stock
5.77 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
FL-3210C
$172.45
2  In Stock
818 SCCM
Carboloy
Acetal, Aluminum
8-Turn Valve
FL-3210G
$172.45
5  In Stock
202 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
FL-3213G
$172.45
Available
in 4 weeks
104 SCCM
Borosilicate Glass
Acetal, Aluminum
8-Turn Valve
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The 150 mm High/Low Alarm Flow Meter with Optical Sensor Switch is a noninvasive means for detection of a HI or LOW flow and is ideal for signaling an alarm or cutoff valve.

Product Number Materials Water Flow, Max
FLSW3405ST-A
$858.00
Available
in 5 weeks
Aluminum
20.4 ml/min
FLSW3401G-A
$858.00
Available
in 5 weeks
Aluminum
0.49 ml/min
FLSW3402G-A
$858.00
Available
in 5 weeks
Aluminum
0.9 ml/min
FLSW3404G-A
$858.00
Available
in 5 weeks
Aluminum
5.5 ml/min
FLSW3407G-A
$858.00
Available
in 5 weeks
Aluminum
54 ml/min
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The FL-2500 Series direct read flow meter kits offer include seven interchangeable direct read scales for air, water, Argon, CO, Helium, Nitrogen and Oxygen.

Product Number Air Flow, Max Materials Valve Included
FL-2513-V
$122.27
2  In Stock
3.5 SLM
Acrylic, Stainless Steel
true
FL-2501
$103.55
Available
in 4 weeks
1.4 SLM
Acrylic, Brass
false
FL-2502
$103.55
Available
in 4 weeks
2.75 SLM
Acrylic, Brass
false
FL-2503
$103.55
Available
in 4 weeks
3.5 SLM
Acrylic, Brass
false
FL-2504
$103.55
Available
in 4 weeks
8.5 SLM
Acrylic, Brass
false
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Rugged In-Line Flow Sensors Available in 1/2", 3/4", and 1-1/4" sizes are protected in a sturdy cast aluminum enclosure, and are easy to install and mount in any position.

Product Number Air Flow, Max Process Connection Size Process Connection Type Scale Media Calibration Water Flow, Max
FLR8350D
$1,516.03
Available
in 3 weeks
0 m³/s
1 in
NPT Female
Water
50 GPM
FLR6102D
$1,127.04
Available
in 6 weeks
0 m³/s
1/2 in
NPT Female
Oil
2 GPM
FLR6105D
$1,127.04
1  In Stock
0 m³/s
1/2 in
NPT Female
Oil
5 GPM
FLR6115D
$1,127.04
3  In Stock
0 m³/s
1/2 in
NPT Female
Oil
15 GPM
FLR6302D
$1,139.35
Available
in 3 weeks
0 m³/s
1/2 in
NPT Female
Water
2 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-3801AL
$318.95
1  In Stock
Aluminum
N/A
3/8 in
Oil
1 GPM
FLMH-1002AL
$466.02
Available
in 4 weeks
Aluminum
N/A
1 in
Oil
2 GPM
FLMH-1002BR
$603.81
Available
in 4 weeks
Brass
N/A
1 in
Oil
2 GPM
FLMH-1002SS
$1,134.41
Available
in 4 weeks
Stainless Steel
N/A
1 in
Oil
2 GPM
FLMH-1005AL
$457.90
Available
in 4 weeks
Aluminum
N/A
1 in
Oil
5 GPM
  Load More Items from this family (405) ...
Product Number Argon Flow, Max Scale Length
FLDAR3301G
$347.24
Available
in 4 weeks
2.5 SCFH
65 mm
FLDAR3304G
$367.67
2  In Stock
50 SCFH
65 mm
FLDAR3305S
$347.24
Available
in 4 weeks
1000 ml/min
65 mm
FLDAR3501C
$448.26
1  In Stock
2 l/min
150 mm
FLDAR3503S
$475.80
2  In Stock
25 l/min
150 mm
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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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