Gas Welding Flowmeters | McMaster-Carr

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For Use With

Maximum Flow

Flow Measurement Unit

Pipe Size

Stage

Number of Flowmeters

Inlet CGA Number

Fitting Material

Calibrated With

Inlet Gender

Minimum Flow

Maximum Inlet Pressure Gauge Reading

Outlet Connection Port

Body Material

Maximum Pressure @ Temperature

Gender

Connects To

Inlet Connection Port

RoHS Compliance

Seal Material

Fitting Connection

Mounting Location

Gauge Port Location

Outlet Gender

REACH Compliance

Maximum Temperature

Shape

DFARS Compliance

Overall Height

Center-to-Center Height

Outlet Thread Size

Wetted Parts Material

Number of Gauge Ports

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185 Products

About Gas Regulators

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.

Male Inlet × Female Outlet With One Flowmeter

Male Inlet × Female Outlet With Two Flowmeters

Female Inlet × Female Outlet With One Flowmeter

Female Inlet × Male Outlet With One Flowmeter

Flowmeters let you see the gas flow rate from a distance. These valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. They have a gauge for monitoring inlet pressure from the tank.

Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.

Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.

Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.

Valve with two flowmeters lets you simultaneously run two pieces of equipment from one tank. Both flowmeters have a dual scale.

Adapters (sold separately) change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.

For Use With Argon

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 70	1	Brass	PTFE	Neoprene	00000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Argon and Argon/Carbon Dioxide Blend

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 3,000	Single	5/8"-18	Side	Right Hand	0 to 70 (Argon), 0 to 70 (Argon/Carbon Dioxide Blend)	1	Brass	PTFE	Neoprene	0000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Argon, Argon/Carbon Dioxide Blend, and Helium

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 3,000	Two	5/8"-18	Side	Right Hand	0 to 40 (Argon), 0 to 40 (Argon/Carbon Dioxide Blend), 0 to 150 (Helium) to150	1	Brass	PTFE	Neoprene	000000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Argon, Argon/Carbon Dioxide Blend, Carbon Dioxide, and Helium

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60 (Argon), 0 to 60 (Argon/Carbon Dioxide Blend), 0 to 50 (Carbon Dioxide), 0 to 160 (Helium)	1	Brass	Buna-N	Brass	000000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Argon and Helium

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 3,000	Two	5/8"-18	Side	Right Hand	0 to 18 (Argon), 0 to 50 (Helium)	1	Brass	PTFE	Neoprene	000000000	0000000
CGA 580	Side	Right Hand	0 to 3,000	Two	5/8"-18	Side	Right Hand	0 to 65 (Argon), 0 to 200 (Helium)	1	Brass	PTFE	Neoprene	000000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 45 (Argon), 0 to 140 (Helium)	1	Brass	PTFE	Neoprene	00000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 45 (Argon), 0 to 140 (Helium)	2	Brass	PTFE	Neoprene	0000000	000000

Optional Adapter

00000000

Each

000000

For Use With Carbon Dioxide

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 70	1	Brass	PTFE	Neoprene	00000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Helium and Hydrogen

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100 (Helium), 0 to 140 (Hydrogen)	1	Brass	PTFE	Neoprene	000000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Hydrogen

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Male Outlet × NGO Female Inlet
CGA 350	Side	Left Hand	0 to 3,000	Single	9/16"-18	Side	Left Hand	0 to 40	1	Brass	PTFE	Neoprene	000000000	0000000

Optional Adapter

00000000

Each

000000

For Use With Nitrogen

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Number of Flowmeters	Body	Seal	Diaphragm		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100	1	Brass	PTFE	Neoprene	00000000	0000000

Optional Adapter

00000000

Each

000000

Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

For Use With: See Table
Temperature Range: -20° to 120° F

Commonly used in TIG welding where gas flow/coverage is a concern, these valves measure the gas flow rate in addition to regulating pressure. They automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves have a gauge to monitor the outlet flow rate and a second gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.

For Use With Argon

Female Outlet × Male Inlet

Female Outlet × Male Inlet With Hose

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Flow Gauge Included	Body	Seal	Diaphragm	Includes		Each
UNF Female Outlet × NGO Male Inlet
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	__	0000000	0000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends	0000000	000000
CGA 580	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100	Yes	Brass	PTFE	Neoprene	__	0000000	000000

For Use With Carbon Dioxide

Female Outlet × Female Inlet

Female Outlet × Female Inlet With Hose

Inlet					Outlet					Material
CGA Number	Location	Thread Direction	Pressure Gauge Range, psi	Stage	Thread Size	Location	Thread Direction	Flow Range, scfh	Flow Gauge Included	Body	Seal	Diaphragm	Includes		Each
UNF Female Outlet × NGO Female Inlet
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	__	0000000	0000000
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 60	Yes	Brass	PTFE	Neoprene	10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends	0000000	000000
CGA 320	Side	Right Hand	0 to 4,000	Single	5/8"-18	Side	Right Hand	0 to 100	Yes	Brass	PTFE	Neoprene	__	0000000	000000

Panel-Mount Flowmeters for Gases

Flowmeter with Flow-Control Knob

Replacement Seal Kit

Monitor the flow rate of air and other gases from your instrument panel—these flowmeters have fittings on the back for panel mounting. They should be mounted vertically inline with your piping system, so gas flows up from the bottom. As gas passes through, it pushes an indicator up the scale, showing you the flow rate. With an acrylic body, they're completely clear, so you can inspect your gas’s color and clarity for any problems.

These flowmeters are calibrated with air but can be used with other gases. If you’re using these with a gas other than air, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your gas.

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

Choose a fitting material that is compatible with the gas you're running through your line. PVC fittings work with a wide range of chemicals. However, they can crack from impact or when overtightened. Brass, 303 stainless steel, and 316 stainless steel fittings resist impact better than PVC fittings.

Flowmeters with a female × male connection have internal NPT female threads and external NPT male threads.

Flowmeters with a calibration certificate traceable to NIST states that the flowmeter has passed a test for accuracy.

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

Flowmeters with Flow-Control Knob

Flowmeters												Replacement Seal Kits
Flow Range	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Max. Pressure	Temp. Range, °F	Body Material	Seal Material	Mounting Orientation	Certification		Each		Each
PVC Plastic Fittings
1/4 NPT Female × 1/2 NPT Male
4.2 to 42 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	0000000	000000	00
10 to 100 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
25 to 175 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.4 to 4 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.8 to 8.2 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	000000
0.8 to 8.2 scfm	8 7/16"	6.437"	±3%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
1.5 to 15 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
2.2 to 22 scfm	8 7/16"	6.437"	±3%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2.3 to 23 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
1/2 NPT Female
0.8 to 8 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1.4 to 14.4 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
2 to 20 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
4.2 to 42 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
1 NPT Female
3 to 25 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	000000	000000	00
4 to 50 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	0000000	000000	000000	00
10 to 100 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	000000	000000	00
1 NPT Male
4 to 40 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
4 to 40 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
6 to 60 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
6 to 60 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
Brass Fittings
1/8 NPT Female
0.1 to 1 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
0.2 to 2 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
0.4 to 5 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
0.5 to 10 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
4 to 50 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
10 to 100 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
20 to 200 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	00000	000000	00
1/4 NPT Female
0.26 to 2.6 scfh	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.5 to 5 scfh	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
1 to 10 scfh	4 1/8"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
2 to 20 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2 to 20 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
3 to 30 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
3 to 30 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
6 to 60 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
6 to 60 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
10 to 100 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
10 to 100 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
15 to 180 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
15 to 180 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
0.4 to 4 scfm	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
0.4 to 4 scfm	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
1 to 10 scfm	6 5/8"	5 1/2"	±3%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	000000	000000	00
4 to 20 scfm	6 5/8"	5 1/2"	±3%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Buna-N Rubber	Vertical	__	00000000	000000	000000	00
1/4 NPT Female × 1/2 NPT Male
4.2 to 42 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
10 to 100 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
25 to 175 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.4 to 4 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
0.8 to 8 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1.5 to 15 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
2.3 to 23 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1/2 NPT Female
0.8 to 8 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1.4 to 14.4 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
2 to 20 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
5 to 42 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1 NPT Male
4 to 40 scfm	9 1/8"	6.437"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
6 to 60 scfm	9 1/8"	6.437"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
303 Stainless Steel Fittings
1/8 NPT Female
0.1 to 1 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
0.2 to 2 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
0.4 to 5 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
0.5 to 10 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
4 to 50 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
10 to 100 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
20 to 200 scfh	4"	3"	±5%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
1/4 NPT Female
0.5 to 5 scfm	6 5/8"	5 1/2"	±3%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	0000000	000000	000000	00
1 to 10 scfm	6 5/8"	5 1/2"	±3%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
4 to 20 scfm	6 5/8"	5 1/2"	±3%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	0000000	000000	000000	00
1 NPT Female
3 to 25 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
4 to 50 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
10 to 100 scfm	10 7/8"	8 1/2"	±2%	100 psi @ 70° F	Not Rated	Acrylic Plastic	Fluoroelastomer Rubber	Vertical	__	00000000	000000	000000	00
316 Stainless Steel Fittings
1/4 NPT Female
0.26 to 2.6 scfh	4 1/4"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.5 to 5 scfh	4 1/4"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
1 to 10 scfh	4 1/4"	3"	±6%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
2 to 20 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2 to 20 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
3 to 30 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
3 to 30 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
6 to 60 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
6 to 60 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
10 to 100 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
10 to 100 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
15 to 180 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
15 to 180 scfh	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
0.4 to 4 scfm	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
0.4 to 4 scfm	4 1/8"	3"	±6%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	0000000	000000	0000000	00000
1/4 NPT Female × 1/2 NPT Male
4.2 to 42 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
10 to 100 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
25 to 175 scfh	8 7/16"	6.437"	±3%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.4 to 4 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
0.8 to 8 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
0.8 to 8.2 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
0.8 to 8.2 scfm	8 7/16"	6.437"	±3%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
1.5 to 15 scfm	6 7/8"	5"	±4%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	000000	00
2.2 to 22 scfm	8 7/16"	6.437"	±3%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2.3 to 23 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2.3 to 23 scfm	6 7/8"	5"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
1/2 NPT Female
0.8 to 8 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
1.44 to 14.4 scfm	14 1/2"	12 1/4"	±2%	125 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	000000000	000000	0000000	00000
2 to 20 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
2 to 20 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
4.2 to 42 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
4.2 to 42 scfm	14 1/2"	12 1/4"	±2%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	Calibration Certificate Traceable to NIST	00000000	000000	0000000	00000
1 NPT Male
4 to 40 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000
6 to 60 scfm	9 1/8"	6.437"	±4%	100 psi @ 70° F	33° to 100°	Acrylic Plastic	EPR Rubber	Vertical	__	00000000	000000	0000000	00000

Panel-Mount Flowmeters for Gases with Conversion Chart

Instead of a scale calibrated to a specific gas’ flow rate, these flowmeters measure in millimeters and include a conversion chart, so you can check the flow rate of water and multiple gases without any calculations. Install them in an instrument panel using the fittings on the back. They should be mounted vertically inline with your pipe system, so your gas flows up from the bottom. As gas flows through, it pushes an indicator up the scale. The flow control knob lets you open and close the inlet valve to adjust the flow rate within the range.

The conversion chart includes the flow rates for air, argon, carbon dioxide, helium, nitrogen, oxygen, and water. To calculate the flow rate of gases not included on the chart, multiply the flow rate for air by the specific-gravity conversion factor of your gas. Because you’re using gas, you’ll also need to account for temperature and pressure.

Choose a fitting material that is compatible with the gas you're running through your line.

To help you determine what measuring range is best, flow range is given for air.

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

316 Stainless Steel Fittings
Measuring Range, mm	Flow Range, cc/min.	Overall Ht.	Ctr.-to-Ctr. Ht.	Accuracy	Max. Pressure	Max. Temp., °F	Body Material	Seal Material	Case Material	Window Material	Mounting Orientation	Features		Each
1/8 NPT Female Pipe Connection
0-65	0 to 50	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	0000000
0-65	0 to 103	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-65	0 to 400	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-65	0 to 900	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-18.2 ccm)	0000000	000000
0-65	0 to 2,580	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-55 ccm)	0000000	000000
0-65	0 to 3,840	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-90 ccm)	0000000	000000
0-65	0 to 6,000	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-130 ccm)	0000000	000000
0-65	0 to 10,100	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-235 ccm)	0000000	000000
0-65	0 to 15,750	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-375 ccm)	0000000	000000
0-65	0 to 23,640	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-570 ccm)	0000000	000000
0-150	0 to 50	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-150	0 to 103	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	00000000	000000
0-150	0 to 400	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	00000000	000000
0-150	0 to 855	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-18 ccm)	0000000	000000
0-150	0 to 2,290	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-50 ccm)	0000000	000000
0-150	0 to 3,425	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-75 ccm)	0000000	000000
0-150	0 to 9,180	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-215 ccm)	0000000	000000
0-150	0 to 23,740	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Fluoroelastomer Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-565 ccm)	0000000	000000
Aluminum Fittings
1/8 NPT Female Pipe Connection
0-65	0 to 50	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-65	0 to 103	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-65	0 to 400	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-65	0 to 900	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-18.2 ccm)	0000000	000000
0-65	0 to 2,580	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-55 ccm)	0000000	000000
0-65	0 to 3,840	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-90 ccm)	0000000	000000
0-65	0 to 6,000	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-130 ccm)	0000000	000000
0-65	0 to 10,100	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-235 ccm)	0000000	000000
0-65	0 to 15,750	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-375 ccm)	0000000	000000
0-65	0 to 23,640	5 1/2"	4 1/2"	±5%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-570 ccm)	0000000	000000
0-150	0 to 50	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	0000000	000000
0-150	0 to 103	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	00000000	000000
0-150	0 to 400	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale	00000000	000000
0-150	0 to 855	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-18 ccm)	0000000	000000
0-150	0 to 2,290	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-50 ccm)	0000000	000000
0-150	0 to 3,425	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-75 ccm)	0000000	000000
0-150	0 to 9,180	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-215 ccm)	0000000	000000
0-150	0 to 23,740	10"	8 7/8"	±3%	200 psi @ 70° F	200°	Glass	Buna-N Rubber	Aluminum	Polycarbonate Plastic	Vertical	Flow-Control Knob, Rotating Scale, Water Flow Scale (0-565 ccm)	0000000	000000

Impact-Resistant Panel-Mount Flowmeters for Gases

Flowmeter with
Polycarbonate Plastic
Case and Flow-Control Knob

Flowmeter with 304
Stainless Steel Case
and Flow-Control Knob

A case protects these flowmeters from blows and other impact as they measure the flow rate of gas. Install them in instrument panels using the fittings on the back. As your gas flows through, it pushes an indicator up the scale, showing you the flow rate. Mount these flowmeters vertically, so gas flows up from the bottom.

Choose a fitting material that is compatible with the gas you're running through your line.

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

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

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

Flowmeters for Oxygen

To prevent contaminating your oxygen line, these flowmeters are specially cleaned and bagged. As oxygen flows through, it pushes an indicator up the scale, showing you the flow rate. Mount these flowmeters vertically inline with your oxygen system, so oxygen flows up from the bottom. The flow-control knob lets you open and close the valve at the inlet to adjust the flow rate within the range.

These flowmeters are calibrated with oxygen but can be used with other gases. If you’re using these with a gas other than oxygen, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your gas.

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

Brass Fittings
Flow Range, lpm	Overall Ht.	Accuracy	Max. Pressure	Max. Temp., °F	Body Material	Seal Material	Mounting Orientation	Features		Each
1/8 NPT Female Inlet × Barbed Outlet for 1/4" Tube ID
0 to 30	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	0000000
0.25 to 3.5	7 1/4"	±10%	150 psi @ 72° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
0.5 to 8	7 1/4"	±10%	150 psi @ 72° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
0.5 to 15	7 1/4"	±10%	150 psi @ 72° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	0000000	000000
1/4 NPT Female Inlet × Barbed Outlet for 1/4" Tube ID
0 to 3.5	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
0 to 8	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
0 to 15	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
0 to 30	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000
0 to 70	7 1/4"	±10%	50 psi @ 70° F	140°	Polycarbonate Plastic	Fluoroelastomer Rubber	Vertical	Flow-Control Knob	00000000	000000

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About Gas Regulators

About Flowmeters and Totalizers

Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

Panel-Mount Flowmeters for Gases

Panel-Mount Flowmeters for Gases with Conversion Chart

Impact-Resistant Panel-Mount Flowmeters for Gases

Flowmeters for Oxygen