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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Flanged Totalizers for Drinking Water


Flanged ends let you securely integrate these totalizers into large drinking water pipelines to measure the cumulative amount of water flowing through them. They meet NSF/ANSI 61, so they're safe to use with drinking water. They measure flow volume by counting how many times their turbine turns as liquid flows through. To avoid clogging the turbine and other damage to the sensor, use them only with clean, low-viscosity liquids. Their total cannot be reset.
These totalizers are calibrated with water. You can use them with other liquids, but they may not measure accurately if the liquid’s viscosity differs from water.
Flange | ||||||||||||||||
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Pipe Size | OD | Type | Flow Range, gpm | Max. Total Volume, gallons | End-to-End Lg. | Accuracy | Max. Pressure | Temp. Range, °F | Seal Material | Mounting Orientation | Display Type | Bolt Hole Dia. | Bolt Circle Dia. | Number of Bolt Holes | Each | |
Bronze Body and Brass Fittings | ||||||||||||||||
6 | 11 1/8" | Round | 25 to 2,700 | 99,999,000 | 18" | ±1.5% | 175 psi @ 70° F | 33° to 150° | Buna-N Rubber | Horizontal | Analog | 7/8" | 9 1/2" | 8 | 0000000 | 000000000 |
Optional Elliptical Flange Kit | 0000000 | Each | 0000000 |
Insertion Flow Switches


Avoid complicated inline installation—these flow switches insert into a tee or pipe outlet, so you don’t need to disassemble your pipeline. They have a paddle that’s pushed as your liquid moves through to determine flow. When the paddle reaches a set position determined by the set point, it activates or deactivates equipment. They are single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). They should be mounted vertically into a large-diameter horizontal pipeline, so liquid pushes the paddle.
These flow switches are calibrated with water. You can use them with other liquids, but they may not measure accurately if the liquid’s viscosity differs from water.
Switches with a brass or 316 stainless steel body have multiple paddles you can choose between to get you closest to your set point. For a higher set point, loosen the locking washers to remove the largest paddles. You can also trim the paddles to fine-tune your set point. The more you trim, the higher the set point.
Choose a fitting material that is compatible with the liquid you're running through your line. Brass and 316 stainless steel fittings resist impact better than Noryl plastic fittings. NEMA 4X rated switches protect against dust, weather, and washdowns.
For technical drawings and 3-D models, click on a part number.
Pipe Size | Thread Type | Gender | For Pipe Size | Set Point Range, gpm | Max. Flow Rate, gpm | Set Point Adjustment Method | Paddle Material | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Environmental Rating | Specifications Met | Each | |
Brass Body with Brass Fittings | |||||||||||||||
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Threaded Connection | |||||||||||||||
1 | NPT | Male | 1 2 4 6 | 4.9 to 17.6 13.7 to 56.4 35.3 to 118 60.3 to 245 | 27 105 397 900 | Removable Layered Paddles, Trimmable Paddles | 304 Stainless Steel | 160 psi @ 70° F | 33° to 225° | 3.7 A @ 240 V AC 7.4 A @ 120 V AC | 5" | NEMA 4X | C-UL Listed, UL Recognized Component | 000000 | 0000000 |
1 | NPT | Male | 1 2 4 6 | 6 to 10.2 18.8 to 32.8 39.7 to 73.5 79.2 to 166 | 27 105 397 900 | Removable Layered Paddles, Trimmable Paddles | 304 Stainless Steel | 160 psi @ 70° F | 33° to 300° | 3.7 A @ 240 V AC 7.4 A @ 120 V AC | 5" | __ | C-UL Listed, UL Listed | 000000 | 000000 |
316 Stainless Steel Body with 316 Stainless Steel Fittings | |||||||||||||||
Threaded Connection | |||||||||||||||
1 | NPT | Male | 1 2 4 6 | 6 to 10.2 18.8 to 32.8 39.7 to 73.5 79.2 to 166 | 27 105 397 900 | Removable Layered Paddles, Trimmable Paddles | 304 Stainless Steel | 160 psi @ 70° F | 33° to 300° | 3.7 A @ 240 V AC 7.4 A @ 120 V AC | 5" | __ | C-UL Listed, UL Listed | 000000 | 000000 |