Flow Meter Selection Guide

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 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 →
2221 PVC	GPM 0-1 to 0-2	200 psig (13 bar)	140°F (60°C)	2%	1 Switch 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.

Flow Meter Selection Guide

Flow Meter Gauges, Switches, & Transmitters

Flow Measurement Products

Our Products

About Us

Contact Us