Flow Meter Selection Guide

Flow Meter Gauges, Switches, & Transmitters

Flow Measurement Products

Model

Flow Range

Max Line Pressure

Max Line Temperature

Accuracy

Electrical Availability

Specifications,
Instructions & Drawings

2021 FG/FGS/FS

GPH 0-2 to 0-40
GPM 0-0.04 to 0-0.8
LPH 0-8 to 0-150
LPM 0-0.14 to 0-2.5
SCFH 0-300 to 0-480
SCFM 0-5 to 0-8
SLPM 0-140 to 0-225
Nm3/hr 0-8 to 0-14

3000 psig
(200 bar)

200°F (93°C)

Liquids 2%
Air 5%

1 or 2 Switches
No Enclosure

View Model Page →

2221 PVC

GPM 0-1 to 0-2

200 psig
(13 bar)

140°F (60°C)

2%

1 Switch
No Enclosure

View Model Page →

2221 FG/FGS/FS

GPM 0-1 to 0-5
GPH 0-50 to 0-250
LPM 0-4 to 0-20
LPH 0-240 to 0-1200
SCFM 0-10 to 0-25
SCFH 0-60 to 0-150
SLPM0-280 to 0-700
Nm3/hr 0-15 to 0-40

3000 psig
(200 bar)

200°F (93°C)

Liquids 2%
Air 5%

1 or 2 switches
No Enclosure

View Model Page →

2223 FGS/FS/FGT

GPM 0-1 to 0-5
GPH 0-50 to 0-250
LPM 0-4 to 0-20
LPH 0-240 to 0-1200
SCFM 0-10 to 0-25
SCFH 0-60 to 0-150
SLPM 0-280 to 0-700
Nm3/hr 0-15 to 0-40

5000 psig
(340 bar)

200°F (93°C)

Liquids 2%
Air 5%

1 or 2 Switches
Transmitter
Nema 4X Enclosure

View Model Page →

2321 FG/FGS/FS

GPM 0-1 to 0-10
GPH 0-50 to 0-500
LPM 0-4 to 0-38
LPH 0-240 to 0-1200
SCFM 0-30 to 0-100
SCFH 0-60 to 0-600
SLPM 0-280 to 0-2800
Nm3/hr 0-15 to 0-160

3000 psig
(200 bar)

200°F (93°C)

Liquids 2%
Air 5%

1 or 2 switches
No Enclosure

View Model Page →

2321 PVC

GPM 0-5 to 0-10

200 psig
(13 bar)

140°F (60°C)

2%

1 or 2 switches
No Enclosure

View Model Page →

2323 FGS/FS/FGT/FT

GPM 0-1 to 0-10
GPH 0-50 to 0-500
LPM 0-4 to 0-38
LPH 0-240 to 0-1200
SCFM 0-30 to 0-100
SCFH 0-60 to 0-600
SLPM 0-280 to 0-2800
Nm3/hr 0-15 to 0-160

5000 psig
(340 bar)

200°F (93°C)

Liquids 2%
Air 5%

1 or 2 Switches
Transmitter
Nema 4X Enclosure

View Model Page →

2421 FG

GPM 0-10 to 0-30
LPM 0-40 to 0-110

1500 psig
(100 bar)

200°F (93°C)

2%

1 or 2 Switches
No Enclosure

View Model Page →

2423 FGS/FS

GPM 0-10 to 0-30
LPM 0-40 to 0-110

1500 psig
(100 bar)

200°F (93°C)

2%

1 or 2 Switches
Nema 4X Enclosure

View Model Page →

2510 FG/FGS

0-5 GPM
0-10 GPM

500 psig
(33 bar)

200°F (93°C)

2%

1 or 2 Switches
No Enclosure

View Model Page →

2520 FG/FGS

0-15 GPM
0-20 GPM
0-30 GPM
0-40 GPM

500 psig
(33 bar)

200°F (93°C)

2%

1 or 2 Switches
No Enclosure

View Model Page →

2530 FG/FGS

0-50 GPM
0-60 GPM
0-75 GPM
0-100 GPM
0-150 GPM
0-200 GPM

500 psig
(33 bar)

200°F (93°C)

2%

1 or 2 Switches
No Enclosure

View Model Page →

F=Flow   G=Gauge   S=Switch   T=Transmitter

Fixed Orifice, Variable Area, and DP Flow Meters & Gauges

Our fixed-orifice flow meters are best for low-flow applications. They are able to measure down to 2 GPH, so small changes in flow rate can be seen and users alerted. Because these flow meter gauges use a fixed orifice, users must consider two factors: abrasive fluids and fluids that may leave deposits. This can affect accuracy over time by changing the size of the orifice.

Our variable-area flow meters use a larger orifice and a movable flow cone, which reduces the potential for clogging. We offer specially designed flow meter gauge cones for use under harsh conditions where dirt and debris may be present, such as in wastewater or construction site environments. The variable-area sensor in these flow meters allows for readings on a linear scale, often preferred over square root meters.

 

Our differential pressure flow meter models have directly connected, large-throated, non-clogging flow nozzles. The flow nozzle design is a long life, wear-resistant element that provides many years of service. Our differential pressure flow meters are known worldwide as the rugged, “install them and forget them” type of flow meters.

Our 30000 Series is a fixed set-point flow switch. Their compact size and basic profile results in low-cost flow switches that can be mounted where space is limited. This makes them popular for OEM applications where simple flow switch actuation is required.

WARNING: Some of our products contain Nickel, a chemical known to the State of California to cause cancer. For more information go to: www.p65warnings.ca.gov