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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High-Temperature and Pressure Flowmeters for Oil
If the oil in your line is too hot or pressurized for standard flowmeters, use these flowmeters to measure the flow rate. As oil flows through, it pushes an indicator up the scale, showing you the flow rate. The scale rotates 360°, so you can check the flow rate from any angle. These flowmeters measure flow correctly in any mounting orientation. Install them inline with your pipe system.
These flowmeters are calibrated with oil but can be used with other liquids. If you’re using these with a liquid other than oil, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your liquid.
Choose a fitting material that is compatible with the oil you're running through your line.
For technical drawings and 3-D models, click on a part number.
| Pipe Size  | Flow Range, gpm | End-to-End Lg. | Accuracy | Max. Pressure | Temp. Range, °F | Body Material | Seal Material | Mounting Orientation | Features | Each | |
NPT Female Pipe Connection | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
303 Stainless Steel Fittings—240° F Max. Temp. | |||||||||||
| 1/4 | 0.05 to 0.5 | 4 13/16" | ±7% | 6,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 0000000 |
| 1/4 | 0.2 to 2 | 4 13/16" | ±7% | 6,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 1/2 | 0.5 to 5 | 6 5/8" | ±2% | 6,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 1/2 | 1 to 15 | 6 5/8" | ±2% | 6,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 3/4 | 0.5 to 5 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 3/4 | 1 to 10 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 3/4 | 3 to 30 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 1 | 0.5 to 5 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 1 | 2 to 20 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
| 1 | 4 to 40 | 7 1/4" | ±2% | 5,000 psi @ 70° F | -20° to 240° | 303 Stainless Steel | Fluoroelastomer Rubber | Any | Rotating Scale | 0000000 | 000000 |
Compact Flow Sights with Indicator for Water and Oil
For visual confirmation of flow from a distance, these sights have a ball indicator that moves when flow is present. They have a low-profile body for installation in pipelines with limited clearance. Backlight the back window to increase the visibility of dark liquids.
Sights with a 303 stainless steel body are more corrosion resistant than sights with a brass or zinc-plated steel body.
For technical drawings and 3-D models, click on a part number.
Indicator | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Gender | Temp. Range, °F | Window Lg. | Hex Size | End-to-End Lg. | Max. Pressure | Direction of Flow | Material | Color | Each | |
303 Stainless Steel Body | ||||||||||||
| 1/8 | NPT | Female | 0° to 180° | 1 1/16" | 13/16" | 3" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | Nylon Plastic | White | 0000000 | 000000 |
| 1/4 | NPT | Female | 0° to 180° | 1 1/16" | 13/16" | 3" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | Nylon Plastic | White | 0000000 | 00000 |
| 3/8 | NPT | Female | 0° to 180° | 1 3/8" | 15/16" | 4 1/8" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | Nylon Plastic | White | 0000000 | 000000 |
| 1/2 | NPT | Female | 0° to 180° | 1 5/16" | 1 1/16" | 5" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | Nylon Plastic | White | 0000000 | 000000 |
| 3/4 | NPT | Female | 0° to 180° | 1 1/2" | 1 1/4" | 5 5/8" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | Nylon Plastic | White | 0000000 | 000000 |
Compact Flow Sights for Water and Oil
The low-profile body fits in areas with limited clearance. These sights let you visually confirm flow and inspect liquid color and clarity. The back window can be backlit to increase the visibility of dark liquids.
Sights with a 303 stainless steel body are more corrosion resistant than sights with a brass or zinc-plated steel body.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Thread Type | Gender | Temp. Range, °F | Window Lg. | Hex Size | End-to-End Lg. | Max. Pressure | Direction of Flow | Each | |
303 Stainless Steel Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/8 | NPT | Female | 0° to 180° | 1 1/16" | 13/16" | 2 1/4" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 0000000 | 000000 |
| 1/4 | NPT | Female | 0° to 180° | 1 1/16" | 13/16" | 2 1/4" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 0000000 | 00000 |
| 3/8 | NPT | Female | 0° to 180° | 1 3/8" | 15/16" | 2 7/8" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 0000000 | 00000 |
| 1/2 | NPT | Female | 0° to 180° | 1 5/16" | 1 1/16" | 3 5/8" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 0000000 | 00000 |
| 3/4 | NPT | Female | 0° to 180° | 1 1/2" | 1 1/4" | 3 3/4" | 125 psi @ 70° F | Bottom to Top, Left to Right, Right to Left, Top to Bottom | 0000000 | 00000 |