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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Socket-Connect Flowmeters

Easily install the unthreaded ends of these flowmeters into a PVC piping system. Bond the ends to PVC pipe with PVC cement and primer. They measure flow correctly no matter the mounting orientation. As liquid flows through the meter, it pushes an indicator up the scale, showing you the flow rate. They work with a wide range of chemicals since the fittings are made from PVC.
These flowmeters are calibrated with water but can be used with other liquids. If you’re using these with a liquid other than water, 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.
For technical drawings and 3-D models, click on a part number.
Flow Range, gpm | Overall Ht. | Accuracy | For Pipe Schedule | Max. Pressure | Temp. Range, °F | Body Material | Seal Material | Mounting Orientation | Each | |
PVC Plastic Fittings | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 Male Pipe Connection | ||||||||||
0.5 to 4 | 8 1/2" | ±5% | 40, 80 | Not Rated | 32° to 140° | Polysulfone Plastic | Buna-N Rubber | Any | 0000000 | 0000000 |
1 to 10 | 8 1/2" | ±5% | 40, 80 | Not Rated | 32° to 140° | Polysulfone Plastic | Buna-N Rubber | Any | 0000000 | 000000 |
3 to 18 | 8 1/2" | ±5% | 40, 80 | Not Rated | 32° to 140° | Polysulfone Plastic | Buna-N Rubber | Any | 0000000 | 000000 |
4 to 28 | 8 1/2" | ±5% | 40, 80 | Not Rated | 32° to 140° | Polysulfone Plastic | Buna-N Rubber | Any | 0000000 | 000000 |
Socket-Connect Flowmeter/Totalizers with Remote Display
Often used in hard-to-access areas, these flowmeter/totalizers have a display that can be placed up to 25 feet from the sensor. Use them to measure the rate and volume of liquid flowing through your system. They measure flow 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. Batch totals are resettable but can be protected with a security code to prevent tampering. The reset function can also be disabled so that they operate as a cumulative totalizer. Cumulative totals cannot be reset. No matter the mounting orientation, they’ll measure flow correctly.
These flowmeter/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.
For a complete unit, you’ll need a display, a sensor, and a tee fitting (all sold separately).
Tee fittings mount inline with your pipe. They have two unthreaded socket ends that bond to unthreaded PVC pipe with PVC cement and primer.
For technical drawings and 3-D models, click on a part number.

Pipe Connections | ||||||||
---|---|---|---|---|---|---|---|---|
Inlet/Outlet | Sensor | Pipe Schedule | Flow Range, gpm | Max. Pressure | Temp. Range, °F | Mounting Orientation | Each | |
PVC Plastic Body | ||||||||
1/2 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 1 to 18.9 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 0000000 |
3/4 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 1.7 to 33.2 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 000000 |
1 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 2.7 to 53.9 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 000000 |
1 1/2 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 6.4 to 126.9 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 000000 |
2 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 10.5 to 209.2 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 000000 |
3 Socket-Connect Pipe | 1 1/4 NPSM Threaded Male Pipe | 80 | 23 to 460.8 | 180 psi @ 70° F | 33° to 149° | Any | 00000000 | 000000 |
Socket-Connect Flowmeter/Totalizers
The unthreaded ends of these flowmeter/totalizers install into a PVC piping system, so you can measure the flow rate and volume of liquid passing through your system. Bond the joint together with PVC cement and primer. You can reset the batch total, but you can't reset the cumulative total. They measure flow correctly no matter the mounting orientation.
These flowmeter/totalizers are calibrated with water.
Turbine flowmeter/totalizers measure flow by counting how many times their turbine turns as liquid passes through. To avoid clogging the turbine and other damage, use them only with clean, low-viscosity liquids. You can recalibrate them in the field to other liquids, pipe, and operating conditions.
Ultrasonic flowmeter/totalizers measure flow with ultrasonic waves, so they don’t have internal moving parts that can break or get stuck.
Output modules allow you to transmit flow data from flowmeter/totalizers to an external device such as a programmable logic controller (PLC), data recorder, logger, and remote display (not included). 4-20 mA output modules have an analog output. As flow increases, the output signal from the transmitter increases. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range. Pulse output modules have a digital output. They transmit flow data using spikes of voltage that match the input voltage of the transmitter. The higher the flow, the more pulses they send.
Remote panel-mounting kits let you mount the meter’s display up to 10 feet away.
90° display adapter kits let you rotate the meter’s display 90°, so you can read it easier when mounted vertically.
For technical drawings and 3-D models, click on a part number.


Flowmeter/Totalizers | Replacement Displays | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Connections | Flow Range, gpm | Pipe Schedule | End-to-End Lg. | Accuracy | Max. Total Volume, gallons | Max. Batch Volume, gallons | Max. Pressure | Temp. Range, °F | Mounting Orientation | Batteries Included | Each | Each | ||
Turbine Flow Measurement | ||||||||||||||
PVC Plastic Body with PVC Plastic Fittings and 316 Stainless Steel Seals | ||||||||||||||
1/2 Male | 1 to 10 | 80 | 4 5/16" | ±3% | 999,999 | 999,999 | 225 psi @ 70 ° F | 33° to 140° | Any | Yes | 00000000 | 0000000 | 00000000 | 0000000 |
3/4 Male | 2 to 20 | 80 | 4 7/16" | ±3% | 999,999 | 999,999 | 225 psi @ 70 ° F | 33° to 140° | Any | Yes | 00000000 | 000000 | 00000000 | 000000 |
1 Male | 5 to 50 | 80 | 4 1/2" | ±3% | 999,999 | 999,999 | 225 psi @ 70 ° F | 33° to 140° | Any | Yes | 00000000 | 000000 | 00000000 | 000000 |
1 1/2 Male | 10 to 100 | 80 | 5 3/8" | ±3% | 999,999 | 999,999 | 225 psi @ 70 ° F | 33° to 140° | Any | Yes | 00000000 | 000000 | 00000000 | 000000 |
2 Male | 20 to 200 | 80 | 5 1/2" | ±3% | 999,999 | 999,999 | 225 psi @ 70 ° F | 33° to 140° | Any | Yes | 00000000 | 000000 | 00000000 | 000000 |
Ultrasonic Flow Measurement | ||||||||||||||
PVC Plastic Body with PVC Plastic Fittings and EPDM Rubber Seals | ||||||||||||||
3 Male | 2.06 to 309 | 80 | 6 5/8" | ±2% | 999,999 | 999,999 | 200 psi @ 70 ° F | 32° to 140° | Any | Yes | 0000000 | 00000000 | 00000000 | 000000 |
4 Male | 3.58 to 537 | 80 | 7 3/8" | ±2% | 999,999 | 999,999 | 200 psi @ 70 ° F | 32° to 140° | Any | Yes | 0000000 | 00000000 | 00000000 | 000000 |



(Flowmeter/Totalizer
Sold Separately)
Component | Number of Wire Leads | Wire Lead Lg., ft. | Input Voltage Range | Pkg. Qty. | For Flow Measurement Type | Each | |
4-20 mA Output Module | 4 | 10 | 8V DC to 26V DC | __ | Turbine | 00000000 | 0000000 |
Remote Panel-Mounting Kit | __ | __ | __ | __ | Turbine | 00000000 | 000000 |
90° Display Adapter Kits | __ | __ | __ | __ | Turbine | 00000000 | 00000 |
Pkg. | |||||||
---|---|---|---|---|---|---|---|
Disposable Batteries | __ | __ | __ | 4 | __ | 00000000 | 0000 |
Fixed-Setpoint Insertion Flow Switches

Easy to install, these flow switches come already set to a specific set point and don’t require you to disassemble your pipeline. Instead of mounting them inline, insert them into an unthreaded PVC pipe tee or pipe outlet in large-diameter pipe. 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. All are single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). IP rated, they seal out dust and can be lightly rinsed.
They should be mounted vertically into a horizontal pipeline, so liquid pushes the paddle. Secure them with PVC cement and primer (not included).
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.
For technical drawings and 3-D models, click on a part number.
Pipe Size | For Pipe Size | Set Point, gpm | Max. Flow Rate, gpm | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Environmental Rating | Specifications Met | Each | |
Noryl Plastic Body | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Socket Connection | |||||||||||
1/2 | 1/2 | 1.03 | 7.9 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 0000000 |
3/4 | 3/4 | 1.94 | 21 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |
3/4 | 1, 1 1/4 | 2.7, 6.8 | 31, 40 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |
Hazardous Location Insertion Flow Switches

Safely activate and deactivate equipment in environments with flammable gases and combustible dust when your flow rate reaches a set point. They are UL listed and CSA certified for use in hazardous locations. These switches save you from disassembling your pipeline because you insert them into pipe tees or pipe outlets instead of mounting them inline. They actuate when your system’s liquid pushes the paddle into a set position. To change your set point, the paddle has multiple layers that you can remove. For the lowest set point, use the largest paddle that will fit your pipe. To increase your set point, loosen the locking washers and remove paddles. You can trim the paddles to fine-tune your set point. The smaller the paddle, the higher the setpoint.
They should be mounted vertically into a horizontal pipeline, so liquid pushes the paddle.
These switches are calibrated with water and air. They can also be used with other liquids and gases but may not measure accurately if their viscosity is significantly different.
SPDT (singe pole, double throw) switches can turn one device from off to on (normally open) or from on to off (normally closed).
DPDT (double pole, double throw) switches can either turn two devices from off to on (normally open) or on to off (normally closed).
For technical drawings and 3-D models, click on a part number.
Set Point Range | Max. Flow Rate | Conduit | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Thread Type | Gender | For Pipe Size | For Water and Oil, gpm | For Air and Inert Gas, scfm | For Water and Oil, gpm | For Air and Inert Gas | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Trade Size | Thread Type | Gender | Body Ht. | Each | |
SPDT | ||||||||||||||||
Brass Body | ||||||||||||||||
1 1/2 | NPT | Male | 1 1/2 2 4 12 20 | 3 to 7 4 to 15 12 to 95 140 to 900 400 to 2,400 | 17 to 32 13 to 65 50 to 400 800 to 3,450 2,850 to 10,000 | 55 97 391 3,525 9,792 | Not Rated | 1000 psi @ 70° F | -4° to 275° | 5 A @ 125 V AC 5 A @ 250 V AC | 3/4 | NPT | Female | 8" | 00000000 | 0000000 |
316 Stainless Steel Body | ||||||||||||||||
1 1/2 | NPT | Male | 1 1/2 2 4 12 20 | 3 to 7 4 to 15 12 to 95 140 to 900 400 to 2,400 | 17 to 32 13 to 65 50 to 400 800 to 3,450 2,850 to 10,000 | 55 97 391 3,525 9,792 | Not Rated | 2000 psi @ 70° F | -4° to 275° | 5 A @ 125 V AC 5 A @ 250 V AC | 3/4 | NPT | Female | 8" | 00000000 | 00000000 |
DPDT | ||||||||||||||||
Brass Body | ||||||||||||||||
1 1/2 | NPT | Male | 1 1/2 2 4 12 20 | 3 to 7 4 to 15 12 to 95 140 to 900 400 to 2,400 | 17 to 32 13 to 65 50 to 400 800 to 3,450 2,850 to 10,000 | 55 97 391 3,525 9,792 | Not Rated | 1000 psi @ 70° F | -4° to 275° | 5 A @ 125 V AC 5 A @ 250 V AC | 3/4 | NPT | Female | 8" | 00000000 | 000000 |
316 Stainless Steel Body | ||||||||||||||||
1 1/2 | NPT | Male | 1 1/2 2 4 12 20 | 3 to 7 4 to 15 12 to 95 140 to 900 400 to 2,400 | 17 to 32 13 to 65 50 to 400 800 to 3,450 2,850 to 10,000 | 55 97 391 3,525 9,792 | Not Rated | 2000 psi @ 70° F | -4° to 275° | 5 A @ 125 V AC 5 A @ 250 V AC | 3/4 | NPT | Female | 8" | 00000000 | 00000000 |
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 Noryl plastic body have a paddle that you trim to adjust the 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. Noryl plastic fittings work with a wide range of chemicals.
Socket-connect flow switches bond to an unthreaded PVC pipe tee or pipe outlet with PVC cement and primer (not included).
IP65 rated switches seal out dust and can be lightly rinsed.
For technical drawings and 3-D models, click on a part number.
Pipe Size | 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 | |
Noryl Plastic Body with Noryl Plastic Fittings | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Socket Connection | |||||||||||||
3/4 | 1 1/2 2 3 | 7.7 to 19.3 10.3 to 21 16.5 to 52 | 110 150 390 | Trimmable Paddles | Noryl Plastic | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 0000000 | 0000000 |
3/4 | 1 1/2 2 3 | 7.9 to 15 10 to 22 18 to 50 | 144 240 650 | Trimmable Paddles | 301 Stainless Steel | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |