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Variable Area Flow Meters
Added to Your Shopping Cart

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 |
---|---|---|
|
47.5 SCFM
|
11 GPM
|
|
1.2 SCFM
|
0.25 GPM
|
|
1.7 SCFM
|
0.36 GPM
|
|
3.3 SCFM
|
0.76 GPM
|
|
4.2 SCFM
|
1 GPM
|

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 |
---|---|---|---|
|
2 in
|
NPT Female
|
40 GPM
|
|
1 in
|
NPT Female
|
5 GPM
|
|
1 in
|
NPT Female
|
10 GPM
|
|
1 in
|
NPT Female
|
22 GPM
|
|
1 in
|
NPT Female
|
30.5 GPM
|

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 |
---|---|---|---|---|---|---|---|
|
± 6 %
|
5 SCFH
|
N/A
|
1/4 in
|
NPT Female
|
false
|
0 m³/s
|
|
± 6 %
|
0 m³/s
|
N/A
|
1/4 in
|
NPT Female
|
false
|
7 gal/h
|
|
± 6 %
|
0 m³/s
|
N/A
|
1/4 in
|
NPT Female
|
false
|
12 gal/h
|
|
± 6 %
|
0 m³/s
|
N/A
|
1/4 in
|
NPT Female
|
false
|
22 gal/h
|
|
± 6 %
|
0 m³/s
|
N/A
|
1/4 in
|
NPT Female
|
false
|
44 gal/h
|

Discover the Nitrogen Direct Read Panel Mount Flow Meters, designed for accurate flow measurement in various applications, ensuring reliability and ease of use.
Product Number | Nitrogen Flow, Max | Scale Length | Valve Included |
---|---|---|---|
|
500 ml/min
|
150 mm
|
true
|
|
6 ml/min
|
65 mm
|
true
|
|
60 ml/min
|
65 mm
|
true
|
|
120 ml/min
|
65 mm
|
true
|
|
200 ml/min
|
65 mm
|
true
|

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 |
---|---|---|---|---|---|
|
16 l/min
|
1.6 l/min
|
5 in
|
true
|
0 m³/s
|
|
2 SCFH
|
0.2 SCFH
|
3.03 in
|
true
|
0 m³/s
|
|
3 SCFH
|
0.2 SCFH
|
3.03 in
|
true
|
0 m³/s
|
|
8.5 SCFH
|
0.85 SCFH
|
3.03 in
|
true
|
0 m³/s
|
|
25 SCFH
|
2.5 SCFH
|
3.03 in
|
true
|
0 m³/s
|

Discover the Hydrogen Direct Read Panel Mount Flow Meters, designed for accurate flow measurement in a compact, easy-to-install format. Perfect for various applications.
Product Number | Helium Flow, Max | Scale Length |
---|---|---|
|
3.5 l/min
|
65 mm
|
|
1.5 l/min
|
65 mm
|
|
6 l/min
|
65 mm
|
|
35 ml/min
|
65 mm
|
|
150 ml/min
|
65 mm
|

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 |
---|---|---|---|---|
|
1 in
|
NPT Male
|
Water
|
4 GPM
|
|
1 in
|
NPT Male
|
Water
|
7 GPM
|
|
1 in
|
NPT Male
|
Water
|
10 GPM
|
|
1 in
|
NPT Male
|
Water
|
16 GPM
|
|
1 in
|
NPT Male
|
Water
|
18 GPM
|

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 |
---|---|---|---|---|
|
PVC
|
1/4 in
|
false
|
0.25 GPM
|
|
Polypropylene
|
3/4 in
|
true
|
10 GPM
|
|
PVC
|
1 in
|
false
|
20 GPM
|

The Acrylic Flowmeter for Gas & Liquid features a clear acrylic body, ensuring visibility and accuracy. Ideal for medical, laboratory, and environmental applications.
Product Number | Connection Location | Gas Flow, Max | Liquid Flow, Max | Process Connection Type |
---|---|---|---|---|
|
Back Connection
|
0 m³/s
|
20 l/min
|
NPT Female
|
|
Back Connection
|
25 SCFM
|
0 m³/s
|
NPT Female
|
|
Back Connection
|
50 SCFM
|
0 m³/s
|
NPT Female
|
|
Back Connection
|
100 SCFM
|
0 m³/s
|
NPT Female
|
|
Back Connection
|
700 l/min
|
0 m³/s
|
NPT Female
|

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 |
---|---|---|---|
|
Oil
|
0.876
|
2 GPM
|
|
Oil
|
0.876
|
5 GPM
|
|
Oil
|
0.876
|
10 GPM
|
|
Oil
|
0.876
|
15 GPM
|
|
Water
|
1
|
2 GPM
|

Discover the Air Direct Read Panel Mount Variable Area Flow Meters, designed for easy monitoring of airflow in various applications with a clear and user-friendly display.
Product Number | Air Flow, Max | Float Type | Materials | Scale Length | Valve Type |
---|---|---|---|---|---|
|
6 SCFH
|
Borosilicate Glass
|
316 Stainless Steel, Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
|
2.2 SCFH
|
Carboloy
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
|
6 SCFH
|
Borosilicate Glass
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
|
150 SCFH
|
Carboloy
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
|
0.6 SCFM
|
Carboloy
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|

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 |
---|---|---|---|---|---|---|---|
|
± 5 %
|
5 l/min
|
Acrylic, Brass
|
Panel Mount
|
1/8 in
|
true
|
0 m³/s
|
|
± 5 %
|
1 SCFH
|
Acrylic, Brass
|
Panel Mount
|
1/8 in
|
true
|
0 m³/s
|
|
± 5 %
|
2 SCFH
|
Acrylic, Brass
|
Panel Mount
|
1/8 in
|
true
|
0 m³/s
|
|
± 5 %
|
5 SCFH
|
Acrylic, Brass
|
Panel Mount
|
1/8 in
|
true
|
0 m³/s
|
|
± 5 %
|
10 SCFH
|
Acrylic, Brass
|
Panel Mount
|
1/8 in
|
true
|
0 m³/s
|

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 |
---|---|---|---|
|
1 1/2 in
|
NPT Female
|
30 GPM
|
|
1 in
|
NPT Female
|
5 GPM
|
|
1 in
|
NPT Female
|
10 GPM
|
|
1 in
|
NPT Female
|
15 GPM
|
|
1 1/2 in
|
NPT Female
|
40 GPM
|

The FL9000-AC flowmeters are ideal for a wide range of flow monitoring applications. Additional features include an adjustable flow alarm externally mounted on the meter.
Product Number | Materials | Process Connection Type | Scale Media Calibration | Switch Rating | Water Flow, Max |
---|---|---|---|---|---|
|
Brass
|
NPT Male
|
Water
|
0.5 A @ 125 Vac
|
4 GPM
|
|
Polysulfone
|
NPT Male
|
Water
|
0.5 A @ 125 Vac
|
4 GPM
|
|
Polysulfone
|
NPT Male
|
Water
|
1 A @ 30 Vdc
|
4 GPM
|
|
Polysulfone
|
NPT Male
|
Water
|
0.5 A @ 125 Vac
|
7 GPM
|
|
Polysulfone
|
NPT Male
|
Water
|
0.5 A @ 125 Vac
|
10 GPM
|

Discover the Precision Flowmeters by Rate-Master®, featuring 2", 5", and 10" scales. Ideal for gas and liquid applications, they offer easy installation and accurate readings.
Product Number | Dual Range | Gas Flow, Max | Liquid Flow, Max | Process Connection Size | Valve Type |
---|---|---|---|---|---|
|
No
|
5 SCFH
|
0 m³/s
|
1/4 in
|
Stainless Steel Valve
|
|
No
|
0.4 SCFH
|
0 m³/s
|
1/8 in
|
No Valve
|
|
No
|
1 SCFH
|
0 m³/s
|
1/8 in
|
No Valve
|
|
No
|
2 SCFH
|
0 m³/s
|
1/8 in
|
No Valve
|
|
No
|
5 SCFH
|
0 m³/s
|
1/8 in
|
No Valve
|

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 |
---|---|---|---|---|---|
|
0 m³/s
|
1/2 in
|
NPT Female
|
Oil
|
5 GPM
|
|
0 m³/s
|
1/2 in
|
NPT Female
|
Oil
|
2 GPM
|
|
0 m³/s
|
1/2 in
|
NPT Female
|
Oil
|
15 GPM
|
|
0 m³/s
|
1/2 in
|
NPT Female
|
Water
|
2 GPM
|
|
0 m³/s
|
1/2 in
|
NPT Female
|
Water
|
5 GPM
|

OMEGA's in-line flowmeters offer high accuracy flow rate indication for oil, water or air and the ability to either control the flowrate or alarm on high or low flowrates.
Product Number | Air Flow, Max | Scale Media Calibration | Switch Type | Water Flow, Max |
---|---|---|---|---|
|
0 m³/s
|
Oil
|
SPDT NO/NC, Selectable
|
5 GPM
|
|
0 m³/s
|
Oil
|
SPDT NO/NC, Selectable
|
1 GPM
|
|
0 m³/s
|
Oil
|
SPDT NO/NC, Selectable
|
2 GPM
|
|
0 m³/s
|
Water
|
SPDT NO/NC, Selectable
|
5 GPM
|
|
0 m³/s
|
Water
|
SPDT NO/NC, Selectable
|
15 GPM
|

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 |
---|---|---|---|
|
1.4 SLM
|
Acrylic, Brass
|
true
|
|
1.4 SLM
|
Acrylic, Brass
|
false
|
|
2.75 SLM
|
Acrylic, Brass
|
false
|
|
3.5 SLM
|
Acrylic, Brass
|
false
|
|
8.5 SLM
|
Acrylic, Brass
|
false
|

Discover the Series VF Visi-Float® Flowmeters, precision acrylic flowmeters designed for gas and liquid applications. Available in 2" and 4" scales for accurate readings.
Product Number | Connection Location | Dual Range | Gas Flow, Max | Liquid Flow, Max | Material Construction Option | Scale Length | Valve Type |
---|---|---|---|---|---|---|---|
|
Back Connection
|
N/A
|
1 l/min
|
0 m³/s
|
Nickel Plated Brass
|
2 in
|
N/A
|
|
Back Connection
|
N/A
|
1 SCFH
|
0 m³/s
|
Nickel Plated Brass
|
2 in
|
N/A
|
|
Back Connection
|
N/A
|
2 SCFH
|
0 m³/s
|
Nickel Plated Brass
|
2 in
|
N/A
|
|
Back Connection
|
N/A
|
5 SCFH
|
0 m³/s
|
Nickel Plated Brass
|
2 in
|
N/A
|
|
Back Connection
|
N/A
|
10 SCFH
|
0 m³/s
|
Nickel Plated Brass
|
2 in
|
N/A
|

Discover the Water Direct Read Panel Mount Variable Area Flow Meters, designed for easy flow measurement in various applications. Reliable and user-friendly for accurate readings.
Product Number | Float Type | Materials | Scale Length | Valve Type | Water Flow, Max |
---|---|---|---|---|---|
|
316 Stainless Steel
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
6 ml/min
|
|
Sapphire
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
1 l/min
|
|
Borosilicate Glass
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
0.5 ml/min
|
|
Borosilicate Glass
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
25 ml/min
|
|
Borosilicate Glass
|
Aluminum, Polycarbonate
|
65 mm
|
6-Turn Valve
|
250 ml/min
|
Variable Area Flow Meters
Variable area flow meters measure liquid and gas flow rates accurately for industrial, commerci...
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