Panel Flowmeters | McMaster-Carr

Clear All

	For Use With For Use With

	Maximum Flow Maximum Flow

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

	Flow Measurement Scale Flow Measurement Scale

Gallons per Minute

Liters per Minute

Standard Cubic Feet per
Minute

Standard Cubic Feet per Hour

Cubic Centimeters per Minute

Gallons per Hour

Liters per Hour

	Display Type Display Type

	Scale

	Minimum Flow Minimum Flow

	Fitting Material Fitting Material

	Graduations Graduations

	Maximum Pressure Maximum Pressure

	Mounting Location Mounting Location	Show

Panel

	Mounting Location Mounting Location	Hide

	Overall Height Overall Height

	Connection Style Connection Style

	Threaded

	Gender Gender

Female

Male

	Center-to-Center Height Center-to-Center Height

	Mounting Orientation Mounting Orientation

Vertical

Horizontal

	Body Material Body Material

Plastic

Brass

Glass

	Direction of Flow Direction of Flow

	Valve Material Valve Material

Stainless Steel

Brass

Plastic

	Seal Material Seal Material

Fluoroelastomer Rubber

EPR Rubber

Buna-N Rubber

Viton® Fluoroelastomer
Rubber

	Maximum Temperature Maximum Temperature

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

Forward

How can we improve?

156 Products

About Flowmeters and Totalizers

Flowmeters measure the rate of flow for a liquid or a gas. Totalizers measure the cumulative flow volume. Flowmeter/totalizers display both the flow rate and the cumulative flow volume.

Use these flowmeters for highly accurate flow rate measurements. They have fittings on the back for installation in instrument panels. The flow-control knob lets you open and close the valve at the inlet to adjust the flow rate within the range.

Flowmeters with a calibration certificate traceable to NIST include documentation that states they've passed a test for accuracy.

303 stainless steel fittings are more corrosion resistant and durable than PVC fittings.

Acrylic Plastic Body with PVC Plastic Fittings with Flow-Control Knob
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Flow Range	Accuracy	Max. Pressure	Max. Temp., °F	Seal Material	Mounting Orientation	Certification		Each
Gallons per Minute
1 NPT Female	10 7/8"	8 1/2"	1.5 to 10 gpm	±2%	100 psi @ 70° F	150°	Buna-N Rubber	Vertical	__	0000000	0000000
1 NPT Female	10 7/8"	8 1/2"	3 to 20 gpm	±2%	100 psi @ 70° F	150°	Buna-N Rubber	Vertical	__	0000000	000000
Acrylic Plastic Body with 303 Stainless Steel Fittings with Flow-Control Knob
Gallons per Minute
1 NPT Female	10 7/8"	8 1/2"	0.6 to 5 gpm	±2%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1 NPT Female	10 7/8"	8 1/2"	1.5 to 10 gpm	±2%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1 NPT Female	10 7/8"	8 1/2"	3 to 20 gpm	±2%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
Gallons per Minute, Gallons per Hour
1/4 NPT Female	6 5/8"	5 1/2"	0.25 to 2.5 gpm	±3%	100 psi @ 70° F	150°	Fluoroelastomer Rubber	Vertical	__	0000000	000000
1/4 NPT Female	6 5/8"	5 1/2"	0.5 to 5 gpm	±3%	100 psi @ 70° F	150°	Fluoroelastomer Rubber	Vertical	__	0000000	000000
Gallons per Hour
1/8 NPT Female	6 1/2"	5 1/2"	1 to 10 gph	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1/8 NPT Female	6 1/2"	5 1/2"	2 to 25 gph	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1/8 NPT Female	6 1/2"	5 1/2"	6 to 60 gph	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
Cubic Centimeters per Minute
1/8 NPT Female	6 1/2"	5 1/2"	4 to 50 cc/min.	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1/8 NPT Female	6 1/2"	5 1/2"	40 to 400 cc/min.	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1/8 NPT Female	6 1/2"	5 1/2"	200 to 3,000 cc/min.	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
Liters per Minute, Liters per Hour
1/4 NPT Female	6 5/8"	5 1/2"	1 to 10 lpm	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000
1/4 NPT Female	6 5/8"	5 1/2"	2 to 20 lpm	±3%	100 psi @ 70° F	150°	Viton® Fluoroelastomer Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000

Panel-Mount Flowmeters for Water

Fittings on the back let you install these flowmeters in instrument panels. They measure the flow rate of water in your system.

Flowmeters with a flow-control knob let you open and close the valve at the inlet to adjust the flow rate within the range.

Certificate of calibration traceable to NIST states that the flowmeter has passed a test for accuracy.

Flowmeters with two pipe sizes have internal NPT female threads and external NPT male threads.

316 stainless steel fittings are more corrosion resistant than brass and PVC fittings.

Optional repair kit includes replacement seals.

Flowmeter

Flowmeter with Flow-Control Knob

Acrylic Plastic Body with Brass Fittings
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Certification	Choose a Flow Range		Each
Gallons per Hour
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.70 to 7 gph, 1 to 12 gph, 2 to 22 gph, 4 to 44 gph, 6 to 60 gph, 7.50 to 75 gph	00000000	000000
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.70 to 7 gph, 2.20 to 22 gph	0000000	000000
Acrylic Plastic Body with Brass Fittings and Flow-Control Knob
Gallons per Hour
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.70 to 7 gph, 1 to 12 gph, 2 to 22 gph, 4 to 44 gph, 6 to 60 gph, 7.50 to 75 gph	00000000	00000
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.70 to 7 gph, 2.20 to 22 gph	0000000	000000
Acrylic Plastic Body with PVC Plastic Fittings
Gallons per Minute
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.30 to 3.50 gpm, 0.50 to 5 gpm	00000000	00000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.50 to 5 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.20 to 2 gpm, 0.350 to 3.50 gpm, 0.50 to 5 gpm, 1 to 10 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.50 to 5 gpm	0000000	000000
1 NPT Male	9 1/8"	6 1/2"	±7%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	1 to 10 gpm, 1.50 to 15 gpm, 2 to 20 gpm	00000000	000000
Acrylic Plastic Body with PVC Plastic Fittings and Flow-Control Knob
Gallons per Minute
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.30 to 3.50 gpm, 0.50 to 5 gpm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.50 to 5 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.20 to 2 gpm, 0.350 to 3.50 gpm, 0.50 to 5 gpm, 1 to 10 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.50 to 5 gpm	0000000	000000
1 NPT Male	9 1/8"	6 1/2"	±7%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	1 to 10 gpm, 1.50 to 15 gpm, 2 to 20 gpm	00000000	000000
Acrylic Plastic Body with 316 Stainless Steel Fittings and Flow-Control Knob
Gallons per Minute
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.30 to 3.50 gpm, 0.50 to 5 gpm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.10 to 1 gpm, 0.20 to 2 gpm, 0.50 to 5 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.20 to 2 gpm, 0.350 to 3.50 gpm, 0.50 to 5 gpm, 1 to 10 gpm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.50 to 5 gpm	0000000	000000
1 NPT Male	9 1/8"	6 1/2"	±7%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	1 to 10 gpm, 1.50 to 15 gpm, 2 to 20 gpm	00000000	000000
Gallons per Hour
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	__	0.70 to 7 gph, 1 to 12 gph, 2 to 22 gph, 4 to 44 gph, 6 to 60 gph, 7.50 to 75 gph	00000000	000000
1/4 NPT Female	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 130°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.70 to 7 gph, 2.20 to 22 gph	0000000	000000

Optional Repair Kits

	For Flowmeters		For Flowmeters with Flow-Control Knob
For Flowmeter Overall Ht.		Each		Each
4 1/8"	0000000	000000	0000000	000000
6 7/8", 8 7/16"	0000000	00000	0000000	00000
9 1/8"	0000000	00000	0000000	00000
14 1/2"	0000000	00000	0000000	00000

Impact-Resistant Panel-Mount Flowmeters for Water

Flowmeter with Polycarbonate Plastic Case

A rugged, impact-resistant case protects these flowmeters from damage. They measure the flow rate of water in your system and have fittings on the back for installation in instrument panels.

Flowmeters with a flow-control knob let you open and close the valve at the inlet to adjust the flow rate within the range.

316 stainless steel fittings are more corrosion resistant than 303 stainless steel fittings.

For technical drawings and 3-D models, click on a part number.

						Temp. Range, °F
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Flow Range, gph	Accuracy	Max. Pressure	Min.	Max.	Case Material	Seal Material	Mounting Orientation		Each
Polycarbonate Plastic Body with 303 Stainless Steel Fittings
Gallons per Hour
1/8 NPT Female	4 13/16"	3"	0.2 to 2.5	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000
1/8 NPT Female	4 13/16"	3"	0.4 to 5	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	1 to 10	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	2 to 25	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	4 to 40	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
Polycarbonate Plastic Body with 303 Stainless Steel Fittings and Flow-Control Knob
Gallons per Hour
1/8 NPT Female	4 13/16"	3"	0.2 to 2.5	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	0.4 to 5	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	1 to 10	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	2 to 25	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	4 to 40	±4%	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	00000
Glass Body with 316 Stainless Steel Fittings and Flow-Control Knob
Gallons per Hour
1/4 NPT Female	6 1/16"	4 9/16"	0.1 to 2.6	±6%	200 psi @ 70° F	33°	200°	304 Stainless Steel	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	0.15 to 1.75	±6%	200 psi @ 70° F	33°	200°	304 Stainless Steel	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	0.8 to 8.2	±6%	200 psi @ 70° F	33°	200°	304 Stainless Steel	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	1 to 19	±6%	200 psi @ 70° F	33°	200°	304 Stainless Steel	Fluoroelastomer Rubber	Vertical	0000000	000000

High-Temperature Panel-Mount Flowmeters for Water

Flowmeter with Flow-Control Knob

Rated for nearly double the temperature of standard panel-mount flowmeters for water, these can withstand up to 212° F. They measure the flow rate of water in your system and have fittings on the back for installation in instrument panels. All have a dual scale that shows readings in both gallons per minute and liters per minute.

Flowmeters with a flow-control knob let you open and close the valve at the inlet to adjust the flow rate within the range.

For technical drawings and 3-D models, click on a part number.

Polysulfone Plastic Body with Polysulfone Plastic Fittings
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Choose a Flow Range, gpm		Each
Gallons per Minute, Liters per Minute
3/8 NPT Male	7"	6"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	0.025 to 0.25, 0.1 to 1, 0.2 to 2, 0.5 to 5	000000	0000000
1/2 NPT Male	7"	6"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	0.025 to 0.25, 0.1 to 1, 0.2 to 2, 0.5 to 5	000000	000000
3/4 NPT Male	8"	6 13/16"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	1 to 10	0000000	000000
Polysulfone Plastic Body with Polysulfone Plastic Fittings and Flow-Control Knob
Gallons per Minute, Liters per Minute
3/8 NPT Male	7"	6"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	0.025 to 0.25, 0.1 to 1, 0.2 to 2, 0.5 to 5	000000	000000
1/2 NPT Male	7"	6"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	0.025 to 0.25, 0.1 to 1, 0.2 to 2, 0.5 to 5	000000	000000
3/4 NPT Male	8"	6 13/16"	±4%	175 psi @ 70° F	33° to 212°	Fluoroelastomer Rubber	Vertical	1 to 10	0000000	000000

Panel-Mount Flowmeters for Air

Monitor the flow rate of compressed air from your instrument panel—these flowmeters have fittings on the back for panel mounting.

Flowmeters with a flow-control knob let you open and close the valve at the inlet to adjust the flow rate within the range.

Certificate of calibration traceable to NIST states that the flowmeter has passed a test for accuracy.

Flowmeters with two pipe sizes have internal NPT female threads and external NPT male threads.

316 stainless steel fittings are more corrosion resistant than brass and PVC fittings.

Optional repair kit includes replacement seals.

Flowmeter

Flowmeter with Flow-Control Knob

Acrylic Plastic Body with Brass Fittings
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Certification	Choose a Flow Range		Each
Standard Cubic Feet per Minute
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.4 to 4 scfm	00000000	000000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.4 to 4 scfm	0000000	000000
Standard Cubic Feet per Hour
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	00000000	00000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	0000000	000000
Acrylic Plastic Body with Brass Fittings and Flow-Control Knob
Standard Cubic Feet per Minute
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.4 to 4 scfm	00000000	00000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.4 to 4 scfm	0000000	000000
Standard Cubic Feet per Hour
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	00000000	00000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	0000000	000000
Acrylic Plastic Body with PVC Plastic Fittings
Standard Cubic Feet per Minute
1/2 NPT Female	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfm, 4.2 to 42 scfm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	2 to 20 scfm, 4.2 to 42 scfm	00000000	000000
1 NPT Male	9 1/8"	6 1/2"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	4 to 40 scfm, 6 to 60 scfm	00000000	000000
1 NPT Male	9 1/8"	6 1/2"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	4 to 40 scfm, 6 to 60 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.3 to 23 scfm	00000000	00000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.2 to 22 scfm	00000000	000000
Acrylic Plastic Body with PVC Plastic Fittings and Flow-Control Knob
Standard Cubic Feet per Minute
1/2 NPT Female	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfm, 4.2 to 42 scfm	00000000	000000
1 NPT Male	9 1/8"	6 1/2"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	4 to 40 scfm, 6 to 60 scfm	00000000	000000
1 NPT Male	9 1/8"	6 1/2"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	4 to 40 scfm, 6 to 60 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.3 to 23 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.2 to 22 scfm	00000000	000000
Acrylic Plastic Body with 316 Stainless Steel Fittings and Flow-Control Knob
Standard Cubic Feet per Minute
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.4 to 4 scfm	00000000	000000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.4 to 4 scfm	0000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfm, 4.2 to 42 scfm	00000000	000000
1/2 NPT Female	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	2 to 20 scfm, 4.2 to 42 scfm	00000000	000000
1 NPT Male	9 1/8"	6 1/2"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	4 to 40 scfm, 6 to 60 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.3 to 23 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0.8 to 8.2 scfm, 2.3 to 23 scfm	00000000	000000
1/4 NPT Female × 1/2 NPT Male	8 7/16"	6 7/16"	±3%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	0.8 to 8.2 scfm, 2.2 to 22 scfm	00000000	000000
Standard Cubic Feet per Hour
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	__	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	00000000	000000
1/4 NPT Female	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	2 to 20 scfh, 3 to 30 scfh, 6 to 60 scfh, 10 to 100 scfh, 15 to 180 scfh	0000000	000000

Optional Repair Kits

	For Flowmeters		For Flowmeters with Flow-Control Knob
For Flowmeter Overall Ht.		Each		Each
4 1/8"	0000000	000000	0000000	000000
6 7/8", 8 7/16"	0000000	00000	0000000	00000
9 1/8"	000000	00	0000000	00000
14 1/2"	0000000	00000	000000	00

Impact-Resistant Panel-Mount Flowmeters for Air

Flowmeter with Polycarbonate Plastic Case

Flowmeter with
Polycarbonate Plastic
Case and Flow-Control Knob

Flowmeter with 304
Stainless Steel Case
and Flow-Control Knob

For protection against damage, these flowmeters have a rugged, impact-resistant case. They measure the flow rate of compressed air in your system and have fittings on the back for installation in instrument panels.

Flowmeters with a flow-control knob let you open and close the valve at the inlet to adjust the flow rate within the range.

304 stainless steel case is more corrosion resistant and durable than a polycarbonate case.

316 stainless steel fittings are more corrosion resistant than 303 stainless steel fittings.

For technical drawings and 3-D models, click on a part number.

						Temp. Range, °F
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Flow Range, scfh	Max. Pressure	Min.	Max.	Case Material	Window Material	Seal Material	Mounting Orientation		Each
Polycarbonate Plastic Body with 303 Stainless Steel Fittings
Standard Cubic Feet per Hour
1/8 NPT Female	4 13/16"	3"	±4%	0.1 to 1	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	000000
1/8 NPT Female	4 13/16"	3"	±4%	0.2 to 2.5	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	0.4 to 5	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	1 to 11	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	2 to 22	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	4 to 60	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
Polycarbonate Plastic Body with 303 Stainless Steel Fittings and Flow-Control Knob
Standard Cubic Feet per Hour
1/8 NPT Female	4 13/16"	3"	±4%	0.1 to 1	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	0.2 to 2.5	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	0.4 to 5	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	1 to 11	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	2 to 22	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
1/8 NPT Female	4 13/16"	3"	±4%	4 to 60	100 psi @ 70° F	Not Rated	150°	Polycarbonate Plastic	__	Fluoroelastomer Rubber	Vertical	0000000	00000
Glass Body with 316 Stainless Steel Fittings and Flow-Control Knob
Standard Cubic Feet per Hour
1/4 NPT Female	6 1/16"	4 9/16"	±6%	0.04 to 0.42	200 psi @ 70° F	33°	250°	304 Stainless Steel	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	±6%	0.4 to 4	200 psi @ 70° F	33°	250°	304 Stainless Steel	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	±6%	0.82 to 8.2	200 psi @ 70° F	33°	250°	304 Stainless Steel	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	±6%	1 to 28	200 psi @ 70° F	33°	250°	304 Stainless Steel	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 1/16"	4 9/16"	±6%	5 to 90	200 psi @ 70° F	33°	250°	304 Stainless Steel	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	0000000	000000

High-Accuracy Panel-Mount Flowmeters for Air

Choose these flowmeters for highly accurate flow rate measurements. They have fittings on the back for installation in instrument panels. The flow-control knob lets you open and close the valve at the inlet to adjust the flow rate within the range.

303 stainless steel fittings are more corrosion resistant and durable than PVC fittings.

Acrylic Plastic Body with PVC Plastic Fittings and Flow-Control Knob
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Flow Range, scfm	Accuracy	Max. Pressure	Max. Temp., °F	Seal Material	Mounting Orientation		Each
Standard Cubic Feet per Minute
1 NPT Female	10 7/8"	8 1/2"	4 to 50	±2%	100 psi @ 70° F	150°	Buna-N Rubber	Vertical	0000000	0000000
Acrylic Plastic Body with 303 Stainless Steel Fittings and Flow-Control Knob
Standard Cubic Feet per Minute
1/4 NPT Female	6 5/8"	5 1/2"	0.5 to 5	±3%	100 psi @ 70° F	150°	Fluoroelastomer Rubber	Vertical	0000000	000000
1/4 NPT Female	6 5/8"	5 1/2"	4 to 20	±3%	100 psi @ 70° F	150°	Fluoroelastomer Rubber	Vertical	0000000	000000

Flowmeters for Inert Gas

The correlated scale and conversion charts let you use the same flowmeter to measure the flow rate of nitrogen, oxygen, argon, and helium. These flowmeters have fittings on the back for installation in your instrument panel. The flow-control knob lets you open and close the valve at the inlet to adjust the flow rate within the range.

316 stainless steel fittings are more corrosion resistant than aluminum fittings.

For technical drawings and 3-D models, click on a part number.

Glass Body with 316 Stainless Steel Fittings
Pipe Connections	Overall Ht.	Ctr.-to-Ctr. Ht.	Flow Range, cc/min.	Accuracy	Max. Pressure	Max. Temp., °F	Case Material	Window Material	Seal Material	Mounting Orientation	Features		Each
Cubic Centimeters per Minute
1/8 NPT Female	5 1/2"	4 1/2"	0 to 50	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	0000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 103	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 400	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 900	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-18.2 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 2,580	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-55 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 3,840	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-90 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 6,000	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-130 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 10,100	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-235 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 15,750	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-375 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 23,640	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-570 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 50	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 103	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 400	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 855	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-18 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 2,290	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-50 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 3,425	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-75 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 9,180	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-215 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 23,740	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-565 ccm)	0000000	000000
Glass Body with Aluminum Fittings
Cubic Centimeters per Minute
1/8 NPT Female	5 1/2"	4 1/2"	0 to 50	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 103	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 400	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 900	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-18.2 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 2,580	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-55 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 3,840	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-90 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 6,000	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-130 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 10,100	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-235 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 15,750	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-375 ccm)	0000000	000000
1/8 NPT Female	5 1/2"	4 1/2"	0 to 23,640	±10%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-570 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 50	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 103	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	00000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 400	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob	00000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 855	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-18 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 2,290	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-50 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 3,425	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-75 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 9,180	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-215 ccm)	0000000	000000
1/8 NPT Female	10"	8 7/8"	0 to 23,740	±5%	200 psi @ 70° F	200°	Aluminum	Polycarbonate Plastic	Buna-N Rubber	Vertical	Flow-Control Knob, Water Flow Scale (0-565 ccm)	0000000	000000

Panel-Mount Flow Sights for Water, Oil, and Inert Gas

The included mounting ring lets you install these sights in instrument panels. They have three ball indicators that bounce in the domed-top window to show flow in your line.

Flow Sights
										Indicator				Repair Kits
Pipe Size	Thread Type	Gender	Temp. Range, °F	Window Dia.	End-to-End Lg.	Ht.	Max. Pressure	Panel Cutout Dia.	Direction of Flow	No. of	Material		Each		Each
Brass Body
1/4	NPT	Female	35° to 120°	1 5/8"	3 1/8"	2 1/8"	150 psi @ 70° F	2 3/8"	Bottom to Top, Left to Right, Right to Left, Top to Bottom	3	White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic	0000000	000000	00000000	000000
3/8	NPT	Female	35° to 120°	1 5/8"	3 1/8"	2 1/8"	150 psi @ 70° F	2 3/8"	Bottom to Top, Left to Right, Right to Left, Top to Bottom	3	White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic	0000000	000000	00000000	00000
1/2	NPT	Female	35° to 120°	1 5/8"	3 1/8"	2 1/8"	150 psi @ 70° F	2 3/8"	Bottom to Top, Left to Right, Right to Left, Top to Bottom	3	White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic	0000000	000000	00000000	00000
3/4	NPT	Female	35° to 120°	1 5/8"	3 1/8"	2 1/8"	150 psi @ 70° F	2 3/8"	Bottom to Top, Left to Right, Right to Left, Top to Bottom	3	White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic	0000000	000000	00000000	00000
1	NPT	Female	35° to 120°	1 5/8"	3 1/8"	2 5/8"	150 psi @ 70° F	2 3/8"	Bottom to Top, Left to Right, Right to Left, Top to Bottom	3	White Polyethylene Plastic White Polyethylene Plastic Green Acrylic Plastic	0000000	000000	00000000	00000

Email Us

About Flowmeters and Totalizers

High-Accuracy Panel-Mount Flowmeters for Water

Panel-Mount Flowmeters for Water

Impact-Resistant Panel-Mount Flowmeters for Water

High-Temperature Panel-Mount Flowmeters for Water

Panel-Mount Flowmeters for Air

Impact-Resistant Panel-Mount Flowmeters for Air

High-Accuracy Panel-Mount Flowmeters for Air

Flowmeters for Inert Gas

Panel-Mount Flow Sights for Water, Oil, and Inert Gas