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Variable Area Flow Meters
Added to Your Shopping Cart

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 |
---|---|---|---|---|---|
|
316 Stainless Steel
|
316 Stainless Steel, Stainless Steel
|
true
|
8-Turn Valve
|
1261 SCCM
|
|
Borosilicate Glass
|
Aluminum
|
true
|
8-Turn Valve
|
0.07 SCCM
|
|
Carboloy
|
Aluminum
|
true
|
8-Turn Valve
|
20.8 SCCM
|
|
Borosilicate Glass
|
Aluminum
|
true
|
8-Turn Valve
|
2.64 SCCM
|
|
Borosilicate Glass
|
Aluminum
|
true
|
8-Turn Valve
|
1.75 SCCM
|

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 |
---|---|---|---|---|
|
0 m³/s
|
3/4 in
|
250 mm
|
3.5 GPM
|
|
0 m³/s
|
1/4 in
|
50 mm
|
7 gal/h
|
|
0 m³/s
|
1/4 in
|
50 mm
|
12 gal/h
|
|
0 m³/s
|
1/4 in
|
50 mm
|
20 gal/h
|
|
0 m³/s
|
1/4 in
|
50 mm
|
50 gal/h
|

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 |
---|---|---|
|
1/4 in
|
12 SCFM
|
|
1/4 in
|
23 SCFM
|
|
1/2 in
|
5 GPM
|
|
3/4 in
|
15 GPM
|
|
3/4 in
|
20 GPM
|

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 |
---|---|---|---|---|---|
|
Aluminum
|
N/A
|
1 in
|
Oil
|
2 GPM
|
|
Brass
|
N/A
|
1 in
|
Oil
|
2 GPM
|
|
Stainless Steel
|
N/A
|
1 in
|
Oil
|
2 GPM
|
|
Aluminum
|
N/A
|
1 in
|
Oil
|
5 GPM
|
|
Brass
|
N/A
|
1 in
|
Oil
|
5 GPM
|

All plastic Variable Area Flow Meters for water or water like liquid flow measurement applications.
Product Number | Water Flow, Max |
---|---|
|
1 GPM
|
|
2.4 GPM
|
|
5 GPM
|
|
10 GPM
|
|
20 GPM
|

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 |
---|---|---|---|---|---|
|
50 SCFM
|
Aluminum
|
N/A
|
1 in
|
N/A
|
|
50 SCFM
|
Brass
|
N/A
|
1 in
|
N/A
|
|
50 SCFM
|
Stainless Steel
|
N/A
|
1 in
|
N/A
|
|
100 SCFM
|
Aluminum
|
N/A
|
1 in
|
N/A
|
|
100 SCFM
|
Brass
|
N/A
|
1 in
|
N/A
|

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 |
---|---|
|
2 GPM
|
|
5 GPM
|
|
10 GPM
|
|
15 GPM
|

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.

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 |
---|---|---|
|
100 SCFM
|
1/2 in
|
|
150 SCFM
|
1/2 in
|
|
50 SCFM
|
1/2 in
|
|
250 SCFM
|
3/4 in
|
|
50 SCFM
|
3/4 in
|

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 |
---|---|
|
33 gal/h
|
|
1.1 GPM
|
|
2 GPM
|
|
4 GPM
|
|
6 GPM
|

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 |
---|---|---|---|
|
1/2 in
|
Oil
|
5 GPM
|
|
1/2 in
|
Oil
|
10 GPM
|
|
3/4 in
|
Oil
|
10 GPM
|
|
3/4 in
|
Oil
|
15 GPM
|
|
1 in
|
Oil
|
15 GPM
|

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 |
---|---|---|---|---|
|
32.99 SCCM
|
Carboloy
|
Acetal, Aluminum
|
8-Turn Valve
|
|
5.77 SCCM
|
Borosilicate Glass
|
Acetal, Aluminum
|
8-Turn Valve
|
|
818 SCCM
|
Carboloy
|
Acetal, Aluminum
|
8-Turn Valve
|
|
202 SCCM
|
Borosilicate Glass
|
Acetal, Aluminum
|
8-Turn Valve
|
|
104 SCCM
|
Borosilicate Glass
|
Acetal, Aluminum
|
8-Turn Valve
|

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 |
---|---|
|
1.5 l/min
|
|
3 l/min
|
|
5 l/min
|
|
10 l/min
|

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 |
---|---|
|
89880 cm³/min
|
|
1086 cm³/min
|
|
1324 cm³/min
|
|
27514 cm³/min
|

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 |
---|---|---|---|---|---|
|
1.2 SCFH
|
0 m³/s
|
2 in
|
Air @ 1 atm
|
N/A
|
|
2.5 SCFH
|
0 m³/s
|
2 in
|
Air @ 1 atm
|
N/A
|
|
5 SCFH
|
0 m³/s
|
2 in
|
Air @ 1 atm
|
N/A
|
|
10 SCFH
|
0 m³/s
|
2 in
|
Air @ 1 atm
|
N/A
|
|
20 SCFH
|
0 m³/s
|
2 in
|
Air @ 1 atm
|
N/A
|

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 |
---|---|---|---|
|
Stainless Steel, Polycarbonate, FKM
|
true
|
1.2 GPM
|
|
Stainless Steel, Polycarbonate, FKM
|
true
|
2 GPM
|
|
Stainless Steel, Polycarbonate, FKM
|
true
|
3 GPM
|
|
Stainless Steel, Polycarbonate, FKM
|
true
|
4 GPM
|
|
Stainless Steel, Polycarbonate, FKM
|
true
|
5 GPM
|

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 |
---|---|---|---|---|---|
|
0 m³/s
|
Rib-Guided
|
1/2 in
|
Water
|
0.74 GPM
|
|
0 m³/s
|
Rib-Guided
|
1/2 in
|
Water
|
2 GPM
|
|
0 m³/s
|
Rib-Guided
|
1 in
|
Water
|
5 GPM
|
|
0 m³/s
|
Pole-Guided
|
1 in
|
Water
|
26 GPM
|
|
0 m³/s
|
Pole-Guided
|
2 in
|
Water
|
61 GPM
|

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 |
---|---|---|
|
1/4 in
|
4 GPM
|
|
1/2 in
|
4 GPM
|
|
1/2 in
|
8 GPM
|
|
1 in
|
15 GPM
|
|
1 in
|
20 GPM
|

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 |
---|---|---|---|---|
|
Borosilicate Glass
|
1 l/min
|
65 mm
|
6-Turn Valve
|
|
Borosilicate Glass
|
50 ml/min
|
65 mm
|
6-Turn Valve
|
|
Sapphire
|
1 l/min
|
150 mm
|
6-Turn Valve
|
|
Sapphire
|
5 l/min
|
150 mm
|
6-Turn Valve
|
|
Carboloy
|
10 l/min
|
150 mm
|
6-Turn Valve
|

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 |
---|---|---|---|
|
1/4 in
|
false
|
125 ml/min
|
|
1/4 in
|
false
|
250 ml/min
|
|
1/4 in
|
false
|
400 ml/min
|
|
1/4 in
|
false
|
500 ml/min
|
|
1/4 in
|
false
|
1000 ml/min
|
Variable Area Flow Meters
Variable area flow meters measure liquid and gas flow rates accurately for industrial, commerci...
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