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Warning: Products have one, but not necessarily all, of the selected characteristics.
Flow Measurement Scale Flow Measurement Scale |
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Display Type Display Type |
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![]() | Scale |
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For Tube ID For Tube ID |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Direction of Flow Direction of Flow |
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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.
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Flowmeters for Oxygen

Calibrated, cleaned, and bagged for oxygen service, these flowmeters are commonly used for welding. They install directly in your line. All have a flow-control knob that lets 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.
Pipe × Tube Connections | Overall Ht. | Flow Range, lpm | Accuracy | Max. Pressure | Max. Temp., °F | Seal Material | Mounting Orientation | Each | |
Polycarbonate Plastic Body with Brass Fittings and Flow-Control Knob | |||||||||
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Liters per Minute | |||||||||
1/8 NPT Female Inlet × Barbed Outlet for 1/4" Tube ID | 7 1/4" | 0.25 to 3.5 | ±10% | 150 psi @ 72° F | 140° | Fluoroelastomer Rubber | Vertical | 0000000 | 0000000 |
1/8 NPT Female Inlet × Barbed Outlet for 1/4" Tube ID | 7 1/4" | 0.5 to 8 | ±10% | 150 psi @ 72° F | 140° | Fluoroelastomer Rubber | Vertical | 0000000 | 000000 |
1/8 NPT Female Inlet × Barbed Outlet for 1/4" Tube ID | 7 1/4" | 0.5 to 15 | ±10% | 150 psi @ 72° F | 140° | Fluoroelastomer Rubber | Vertical | 0000000 | 000000 |