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Variable Area Flow Meters

61 Products
Rotatable Flowmeters for Air/Water/Gases – Direct Read with Shield

Rotatable Scale Flowmeters are ideal for the direct flow measurement of air, water, and other commonly used gases. Features borosilicate glass tubes

Product Number Liquid Flow, Max Material Construction Option Mounting Orientation Valve Type
RSF013
TWD40,074 / each
Available
in 11 weeks
3 GPM
Brass
Vertical
N/A
RSF022
TWD40,074 / each
Available
in 11 weeks
2 GPM
Brass
Panel Mount
N/A
RSF111
TWD58,399 / each
Available
in 11 weeks
1.2 GPM
Stainless Steel
Vertical
N/A
RSF121
TWD58,399 / each
Available
in 11 weeks
1.2 GPM
Stainless Steel
Panel Mount
N/A
RSF123
TWD58,399 / each
Available
in 11 weeks
3 GPM
Stainless Steel
Panel Mount
N/A
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Pneumatic In-Line Variable Area Flow Meters

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
TWD14,175 / each
Available
in 6 weeks
100 SCFM
1/2 in
FL6760A
TWD14,175 / each
Available
in 6 weeks
50 SCFM
1/2 in
FL8745A
TWD48,910 / each
Available
in 5 weeks
400 SCFM
1 1/4 in
IF Series Direct Reading Flowmeters for Water & Air (116 GPM, 250 SCFM)

Industrial Direct Reading Flowmeters are directly measure flow rates for water and for air service. Good for gas or liquid metering and industrial pneumatic or hydraulic systems.

Product Number Liquid Flow, Max
IF2702
TWD62,889 / each
Available
in 11 weeks
0.76 GPM
IF2703
TWD62,889 / each
Available
in 11 weeks
1 GPM
IF2704
TWD63,069 / each
Available
in 11 weeks
1.5 GPM
IF2705
TWD62,889 / each
Available
in 11 weeks
2.2 GPM
IF2706
TWD75,135 / each
Available
in 11 weeks
3.8 GPM
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Variable Area Flowmeters for Air, Water & Gas - Series DR

Direct Reading Glass Flowmeters are ideal for direct flow measurement of air, water, and other commonly used gases. Shipped completely assembled and includes mounting hardware.

Product Number Gas Flow, Max Liquid Flow, Max Material Construction Option Scale Length Valve Type
DR10462
TWD16,714 / each
Available
in 12 weeks
5.6 SCFH
0 m³/s
Aluminum
65 mm
6-Turn Needle Valve
DR10470
TWD16,714 / each
Available
in 10 weeks
11 SCFH
0 m³/s
Aluminum
65 mm
6-Turn Needle Valve
DR10482
TWD16,714 / each
Available
in 10 weeks
20 SCFH
0 m³/s
Aluminum
65 mm
6-Turn Needle Valve
DR10490
TWD16,714 / each
Available
in 10 weeks
55 SCFH
0 m³/s
Aluminum
65 mm
6-Turn Needle Valve
DR12070
TWD29,041 / each
Available
in 10 weeks
11 SCFH
0 m³/s
Stainless Steel
65 mm
N/A
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Custom Multitube Flow Systems for Metering & Mixing, Up to 6 Tubes

The Multitube Flow System supports up to six flow tubes with varying capacities and patterns, suitable for multichannel metering, mixing, or monitoring.

Product Number Gas Flow, Max Liquid Flow, Max Material Construction Option Scale Length Tube Capacity Valve Type
VA82
TWD13,022 / each
Available
in 11 weeks
400 ml/min
12 ml/min
Stainless Steel
N/A
N/A
16-Turn Valve
VA86
TWD12,985 / each
Available
in 11 weeks
6201 ml/min
201 ml/min
Stainless Steel
N/A
N/A
16-Turn Valve
FV-21
TWD6,128 / each
Available
in 11 weeks
5000 ml/min
125 ml/min
Stainless Steel
N/A
N/A
6-Turn Valve
FV-23
TWD6,128 / each
Available
in 11 weeks
10001 ml/min
326 ml/min
Stainless Steel
N/A
N/A
6-Turn Valve
FT-748
TWD4,707 / each
Available
in 11 weeks
10 SCFH
0 m³/s
Stainless Steel
65 mm
N/A
N/A
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In-line Flow Meters for Use with Water and Air

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
TWD10,943 / each
Available
in 7 weeks
1 in
NPT Female
5 GPM
FL-510
TWD10,943 / each
Available
in 6 weeks
1 in
NPT Female
10 GPM
FL-515
TWD11,561 / each
Available
in 7 weeks
1 in
NPT Female
15 GPM
FL-530
TWD17,474 / each
Available
in 7 weeks
1 1/2 in
NPT Female
30 GPM
FL-540
TWD18,616 / each
Available
in 7 weeks
1 1/2 in
NPT Female
40 GPM
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Fluoropolymer Flowmeter for High-Purity Liquids, 0-10 Scale, Series VAT

Variable Area Fluoropolymer Flowmeters are ideal for high purity or corrosive liquid applications. Applications include chemical injectors and deionized water systems.

Product Number Liquid Flow, Max Process Connection Size Valve Type
VAT-303
TWD24,985 / each
Available
in 11 weeks
6.34 gal/h
1/4 in
No Valve
VAT-313
TWD42,561 / each
Available
in 11 weeks
6.34 gal/h
1/4 in
6-Turn Valve
VAT-315
TWD42,561 / each
Available
in 11 weeks
15.85 gal/h
1/4 in
6-Turn Valve
VAT-6010
TWD71,978 / each
Available
in 11 weeks
3.43 GPM
1/2 in
No Valve
VAT-6013
TWD71,978 / each
Available
in 11 weeks
10.57 GPM
3/4 in
No Valve
Direct Read In-Line Variable Area flow meter

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
FLD1002
TWD33,897 / each
Available
in 6 weeks
Stainless Steel, Polycarbonate, FKM
true
2 GPM
Glass Flowmeters for Air/Water, 1.5X Magnification, Durable, Industrial

High Flow Glass Flowmeter offers a solution to the problem of fluid flow indication at higher capacity levels. Designed to withstand even the harshest industrial applications.

Product Number Gas Flow, Max Liquid Flow, Max Material Construction Option Scale Length Valve Type
DR4101
TWD46,139 / each
Available
in 10 weeks
4 SCFM
0 m³/s
Brass
127 mm
N/A
DR4103
TWD46,139 / each
Available
in 10 weeks
11 SCFM
0 m³/s
Brass
127 mm
N/A
DR4108
TWD46,139 / each
Available
in 10 weeks
0 m³/s
4 GPM
Brass
127 mm
N/A
DR4109
TWD46,139 / each
Available
in 10 weeks
0 m³/s
5 GPM
Brass
127 mm
N/A
DR4141
TWD54,520 / each
Available
in 10 weeks
4 SCFM
0 m³/s
Brass
127 mm
6-Turn Needle Valve
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Flow Rate Transmitter, 4-20 mA/0-5 Vdc, for Waste Water & Process Control

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-2205
TWD63,225 / each
Available
in 7 weeks
1/2 in
5 GPM
HFT-2440
TWD67,925 / each
Available
in 13 weeks
1 in
40 GPM
HFT-3202
TWD78,283 / each
Available
in 7 weeks
1/2 in
2 GPM
HFT-3210
TWD78,283 / each
Available
in 7 weeks
1/2 in
10 GPM
Easy-view Flow Meters For Water and Oil

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
TWD3,996 / each
Available
in 6 weeks
1 in
NPT Male
Water
4 GPM
FL-9010
TWD3,996 / each
Available
in 6 weeks
1 in
NPT Male
Water
10 GPM
FL-9016
TWD3,996 / each
Available
in 6 weeks
1 in
NPT Male
Water
16 GPM
FL-9104
TWD4,128 / each
Available
in 4 weeks
1 in
NPT Male
Oil
4 GPM
Direct Read Panel Mount Variable area flow meter

Discover the Direct Read Panel Mount Variable Area Flow Meter, featuring a compact design with dual scales for air and water, ensuring precise flow measurements.

Product Number Materials Valve Included Water Flow, Max
FLD2001
TWD34,458 / each
Available
in 6 weeks
Stainless Steel, Polycarbonate, FKM
true
1.2 GPM
FLD2003
TWD34,458 / each
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
3 GPM
FLD2005
TWD34,458 / each
Available
in 5 weeks
Stainless Steel, Polycarbonate, FKM
true
5 GPM
FLD2002-NV
TWD29,913 / each
Available
in 9 weeks
Stainless Steel, Polycarbonate, FKM
false
2 GPM
Direct Reading Analog Display Flow Meters

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-W7114
TWD56,719 / each
Available
in 6 weeks
6 GPM
Variable-Area Flowmeter for Gases, ± 5% Accuracy, Durable Aluminum, 3000 psig

Variable-Area Flowmeter for Gases measures gas flow rates. Applications include backflow prevention, heat exchangers, oil & gas equipment, and hydraulic equipment.

Product Number Volumetric Flow Rate, Max
DTFA-1A-10A
TWD18,629 / each
Available
in 9 weeks
10 SCFM
DTFA-1A-20A
TWD18,629 / each
Available
in 9 weeks
20 SCFM
DTFA-2A-30A
TWD19,911 / each
Available
in 10 weeks
30 SCFM
DTFA-2A-40A
TWD19,911 / each
Available
in 9 weeks
40 SCFM
DTFA-2A-50A
TWD19,911 / each
Available
in 9 weeks
50 SCFM
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Easy-view Flow Meters For Water and Oil With Optional Alarm Modules

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
TWD22,321 / each
Available
in 5 weeks
1 1/2 in
NPT Female
Water
50 GPM
Variable Area Flow Meters With Hi or Low Alarm

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
FLSW3410ST-A
TWD34,515 / each
Available
in 5 weeks
Aluminum
506 ml/min
In-Line Acrylic Variable Area Flow Meters

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
FL46308
Not Available
Discontinued
17 GPM
In-Line Variable Area Flow Meters for Water & Wastewater

The FL-500WW Series provides flowrate indication for 1 to 5% dilute aqueous chemical solutions used in the treatment of water and wastewater

Product Number Water Flow, Max
FL-505WW
TWD16,826 / each
Available
in 16 weeks
5 GPM
FL-510WW
TWD16,826 / each
Available
in 16 weeks
10 GPM
FL-520WW
TWD22,355 / each
Available
in 16 weeks
20 GPM
FL-550WW
TWD23,617 / each
Available
in 6 weeks
50 GPM
Rugged, Economical Flowmeters Capacity: 0.2 to 90 GPM of Water

The FL-W Series of water flow monitors can be used with flows from 1 gph up to 90 gpm.

Product Number Water Flow, Max
FL-W70
TWD43,017 / each
Available
in 35 weeks
70 GPM
Fluoropolymer Flowmeters for High Purity & Corrosive Liquids, 0-10 Scale

All Fluoropolymer Flowmeters offer solutions for measuring flow rates of highly corrosive or ultra-pure liquids. Applications include chemical injectors and deionized water systems

Product Number Liquid Flow, Max Process Connection Size Scale Length Valve Type
TVA1113
TWD47,483 / each
Available
in 11 weeks
6.34 gal/h
1/4 in
75 mm
6-Turn Valve
TVA1115
TWD47,483 / each
Available
in 7 weeks
15.9 gal/h
1/4 in
75 mm
6-Turn Valve
TVA1317
TWD47,483 / each
Available
in 11 weeks
39.6 gal/h
3/8 in
75 mm
6-Turn Valve
TVA24114
TWD83,611 / each
Available
in 11 weeks
11.9 GPM
3/4 in
125 mm
6-Turn Valve

Variable Area Flow Meters

Variable Area Flow Meters support flow measurement, switching, control, or ...

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