PVC Plastic Flowmeters | McMaster-Carr

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64 Products

Flowmeter/Totalizers

Determine the flow rate and total volume of liquid flowing through your system with the same meter. To measure flow, these flowmeter/totalizers count how many times their turbine turns as liquid passes through. Use them only with clean, low-viscosity liquids to avoid clogging the turbine and other damage to these flowmeter/totalizers. You can reset the batch total, but you can’t reset the cumulative total. Mount them inline with your pipe system. They’re accurate in any mounting orientation.

These flowmeter/totalizers are either calibrated with water or solvent. You can recalibrate them in the field to other liquids, pipe, and operating conditions.

Choose a fitting material that is compatible with the liquid you're running through your line. IP rated, all seal out dust and can be lightly rinsed.

PVC Body with PVC Fittings and 316 Stainless Steel Seal


	Shown with 90° Display Adapter Kit

Replacement Displays

Image of Product. Front orientation. Flowmeter Rotors. Flowmeter/Totalizers.

Replacement Flowmeter Rotors

PVC fittings work with a wide range of chemicals. However, they can crack from impact or when overtightened.

Calibration Certificate Traceable to NIST—Flowmeter/totalizers with a calibration certificate traceable to NIST include documentation that states that they’ve passed a test for accuracy.

NEMA 4 Enclosure Rating—NEMA 4 flowmeter/totalizers protect against weather and washdowns.

	Flowmeter/Totalizers														Replacement Displays			Replacement Flowmeter Rotors
						Max. Volume Displayed			Temp., ° F
	Connections	Flow, gpm	Pipe Schedule	End-to-End Lg.	Accuracy	Total	Batch	Max. Pressure @ Temp.	Min.	Max.	Batteries Included	Enclosure Rating		Each	Display Type		Each		Each
Flowmeter/Totalizers



		1/2 NPT Female	1 to 10	80	6"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T311	0000000	Digital	4352K513	0000000	———	0


		3/4 NPT Female	2 to 20	80	6 1/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T321	000000	Digital	4352K523	000000	———	0
		1 NPT Female	5 to 50	80	6 1/2"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T331	000000	Digital	4352K533	000000	———	0
		1 1/2 NPT Female	10 to 100	80	7 5/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T341	000000	Digital	4352K543	000000	———	0
		2 NPT Female	20 to 200	80	7 7/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T351	000000	Digital	4352K553	000000	———	0
		4 NPT Female	60 to 600	80	17"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T421	00000000	Digital	4352K109	000000	4352K112	0000000


		Flowmeter/Totalizers with Calibration Certificate Traceable to NIST



				1/2 NPT Female	1 to 10	80	6"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T431	000000	Digital	4352K513	000000	———	0


				3/4 NPT Female	2 to 20	80	6 1/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T441	000000	Digital	4352K523	000000	———	0
				1 NPT Female	5 to 50	80	6 1/2"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T451	000000	Digital	4352K533	000000	———	0
				1 1/2 NPT Female	10 to 100	80	7 5/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T461	000000	Digital	4352K543	000000	———	0
				2 NPT Female	20 to 200	80	7 7/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T471	000000	Digital	4352K553	000000	———	0
				4 NPT Female	60 to 600	80	17"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	33	140	Yes	IP65 NEMA 4	2400T491	00000000	Digital	4352K109	000000	4352K112	000000

Accessories for Flowmeters

90° Display Adapter Kits

90° Display Adapter Kit

90° Display Adapter—90° display adapter kits let you rotate the meter’s display 90°, so you can read it easier when mounted vertically.

Includes	For Flow Measurement Type		Each
90° Display Adapter, 12 Screws, Nitrile Rubber O-Ring	Turbine	4352K101	000000

For Flow Measurement Type		Each
Turbine	4352K221	0000000

Flowmeter Output Modules

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.

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.

Output Current, mA	No. of Wire Leads	Wire Lead Lg., ft.	Input Voltage, V DC	For Flow Measurement Type		Each
4 to 20	4	10	8 to 26	Turbine	4352K227	0000000

	Battery Size	Battery Chemistry	Battery Cap., mA·h	Pkg. Qty.
Disposable Battery


AAA	Alkaline	1,250	4	71455K62	00000

Easy Read Flowmeters

Style A

A large dial instead of a scale makes it easier to read the flow rate from a distance. As liquid flows through these flowmeters, it pushes a needle along the dial, showing you the flow rate. They measure flow correctly no matter the mounting orientation.

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.

Choose a direction of flow that matches your pipe system, so you don't have to tilt your head to read the dial.

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

PVC Fitting—PVC fittings work with a wide range of chemicals. However, they can crack from impact or when overtightened.

								Temp., ° F
	Style	Flow, gpm	Dial Size	End-to-End Lg.	Overall Ht.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position	Direction of Flow		Each
PVC Body with PVC Fittings







				1/4 NPT Female

				A	0 to 1	2 1/2"	3 5/8"	3 5/16"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T21	0000000


				A	0 to 1	3 1/2"	3 5/8"	4 3/8"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T28	000000
				A	0 to 2	2 1/2"	3 5/8"	3 5/16"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T27	000000
				A	0 to 2	3 1/2"	3 5/8"	4 3/8"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T29	000000




						1/2 NPT Female

						A	0 to 5	2 1/2"	5 3/4"	3 5/16"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9858K371	000000


						A	0 to 10	2 1/2"	5 3/4"	3 5/16"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T36	000000
						A	0 to 10	3 1/2"	5 3/4"	4 3/8"	±2%	200 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9079T38	000000




								1 NPT Female

								A	0 to 20	3 1/2"	3 1/4"	5 13/16"	±2%	100 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9858K171	000000


								A	0 to 40	3 1/2"	3 1/4"	5 13/16"	±2%	100 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9858K172	000000




										2 NPT Female

										A	0 to 60	3 1/2"	3 1/4"	7 1/16"	±2%	100 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9858K181	00000000


										A	0 to 100	3 1/2"	3 1/4"	7 1/16"	±2%	100 psi @ 70° F	32	140	Viton® Fluoroelastomer	Any Angle	Left to Right	9858K182	00000000

Socket-Connect Flowmeter/Totalizers

Shown with 90°

Display Adapter Kit

Image of Product. Front orientation. Flowmeters. Socket-Connect Flowmeter/Totalizers.

Image of Product. Front orientation. Flowmeter Displays. Socket-Connect Flowmeter/Totalizers, Flowmeter/Totalizers, Digital Display.

Replacement Displays

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 Flow Measurement—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 Flow Measurement—Ultrasonic flowmeter/totalizers measure flow with ultrasonic waves, so they don’t have internal moving parts that can break or get stuck.

	Flowmeter/Totalizers														Replacement Displays
											Flowmeter/Totalizers
						Max. Volume Displayed					Temp., ° F
	Connections	Flow, gpm	Pipe Schedule	End-to-End Lg.	Accuracy	Total	Batch	Max. Pressure @ Temp.	Mounting Position	Batteries Included	Min.	Max.		Each	Display Type		Each
Turbine Flow Measurement







				PVC Body with PVC Fittings and 316 Stainless Steel Seal

				1/2 Male	1 to 10	80	4 5/16"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	Any Angle	Yes	33	140	5020T711	0000000	Digital	4352K513	0000000


				3/4 Male	2 to 20	80	4 7/16"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	Any Angle	Yes	33	140	5020T721	000000	Digital	4352K523	000000
				1 Male	5 to 50	80	4 1/2"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	Any Angle	Yes	33	140	5020T731	000000	Digital	4352K533	000000
				1 1/2 Male	10 to 100	80	5 3/8"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	Any Angle	Yes	33	140	5020T741	000000	Digital	4352K543	000000
				2 Male	20 to 200	80	5 1/2"	±3%	999,999 Gallons	999,999 Gallons	225 psi @ 70° F	Any Angle	Yes	33	140	5020T751	000000	Digital	4352K553	000000


				Ultrasonic Flow Measurement







								PVC Body with PVC Fittings and EPDM Seal

								3 Male	2.06 to 309	80	6 5/8"	±2%	999,999 Gallons	999,999 Gallons	200 psi @ 70° F	Any Angle	Yes	32	140	3777K51	00000000	Digital	3777K615	000000


								4 Male	3.58 to 537	80	7 3/8"	±2%	999,999 Gallons	999,999 Gallons	200 psi @ 70° F	Any Angle	Yes	32	140	3777K52	00000000	Digital	3777K625	000000

Accessories for Flowmeters

90° Display Adapter Kits

90° Display Adapter Kit

90° Display Adapter—90° display adapter kits let you rotate the meter’s display 90°, so you can read it easier when mounted vertically.

Includes	For Flow Measurement Type		Each
90° Display Adapter, 12 Screws, Nitrile Rubber O-Ring	Turbine	4352K101	000000

For Flow Measurement Type		Each
Turbine	4352K221	0000000

Flowmeter Output Modules

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.

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.

Output Current, mA	No. of Wire Leads	Wire Lead Lg., ft.	Input Voltage, V DC	For Flow Measurement Type		Each
4 to 20	4	10	8 to 26	Turbine	4352K227	0000000

	Battery Size	Battery Chemistry	Battery Cap., mA·h	Pkg. Qty.
Disposable Battery


AAA	Alkaline	1,250	4	71455K62	00000

Flanged Flowmeter/Totalizers


	Replacement Displays

Using the flanged ends, securely install these flowmeter/totalizers in large, high-flow pipelines to measure the flow rate and total volume of liquid flowing through. They use ultrasonic waves to measure flow, so they don’t have any internal moving parts that can break or get stuck. You can reset the batch total, but you can't reset the cumulative total. They measure accurately in any mounting orientation.

These flowmeter/totalizers are calibrated with water.

	Flowmeter/Totalizers															Replacement Displays
												Flowmeter/Totalizers
							Max. Volume Displayed					Temp., ° F
	Connections	Flow, gpm	Flange OD	For Flange ANSI Class	End-to-End Lg.	Accuracy	Total	Batch	Max. Pressure @ Temp.	Mounting Position	Batteries Included	Min.	Max.		Each	Display Type		Each
Ultrasonic Flow Measurement







				PVC Body with PVC Fittings and EPDM Seal

				3 Pipe Size	2.06 to 309	7 1/2"	150	13 1/4"	±2%	999,999 Gallons	999,999 Gallons	200 psi @ 70° F	Any Angle	Yes	32	140	3777K61	000000000	Digital	3777K615	0000000


				4 Pipe Size	3.58 to 537	9"	150	13 3/16"	±2%	999,999 Gallons	999,999 Gallons	200 psi @ 70° F	Any Angle	Yes	32	140	3777K62	00000000	Digital	3777K625	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.

Tee Fittings

Tee fittings mount inline with your pipe. They have two unthreaded socket ends that bond to unthreaded PVC pipe with PVC cement and primer.

						Temp., ° F
	Inlet/Outlet Connection	Sensor Connection	Pipe Schedule	Flow, gpm	Max. Pressure @ Temp.	Min.	Max.	Mounting Position		Each
PVC Body



		1/2 Socket Connect Female Inlet Pipe × 1/2 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	1 to 18.9	180 psi @ 70° F	33	149	Any Angle	4114K231	0000000


		3/4 Socket Connect Female Inlet Pipe × 3/4 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	1.7 to 33.2	180 psi @ 70° F	33	149	Any Angle	4114K232	000000
		1 Socket Connect Female Inlet Pipe × 1 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	2.7 to 53.9	180 psi @ 70° F	33	149	Any Angle	4114K233	000000
		1 1/2 Socket Connect Female Inlet Pipe × 1 1/2 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	6.4 to 126.9	180 psi @ 70° F	33	149	Any Angle	4114K235	000000
		2 Socket Connect Female Inlet Pipe × 2 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	10.5 to 209.2	180 psi @ 70° F	33	149	Any Angle	4114K236	000000
		3 Socket Connect Female Inlet Pipe × 3 Socket Connect Female Outlet Pipe	1 1/4 NPSM Threaded Male Pipe	80	23 to 460.8	180 psi @ 70° F	33	149	Any Angle	4114K238	000000

Calibration Columns

Calibrate the flow rate of metering pumps. A graduated scale with zero at the top lets you easily see how much fluid is lost over the course of a one-minute test. This will tell you your pump’s flow rate. Periodic testing helps alert you to issues in your system, such as worn or dirty valves. Checking the flow rate after performing maintenance ensures your pump is working properly.

Install the column between your reservoir and pump. They require shutoff access to your reservoir and an on/off valve (not included) at the point where they connect to your system. To start the test, open the on/off valve as the system is running to fill the column with fluid up to the zero mark. Shut off the valve and wait one minute before observing the liquid level in the column. After you've taken the reading, close the on/off valve to the column and reopen access to the reservoir.

PVC Body—PVC calibration columns are a good choice when working with water.

				Volume		Graduations
	Pipe Connections	Ht.	Flow Rate Range, gph	Imperial, gal.	Metric, ml	Imperial, gph	Metric, ml/min	Temp. Range, ° F	Mounting Position	For Use With		Each
PVC Body with PVC Fittings







				Gallons per Hour, Milliliters per Minute

				1/2 NPT Female	12 1/2"	0 to 1.5	1.5	100	0.10	5	32 to 140	Vertical	Water	4446K71	000000


				1/2 NPT Female	16 1/4"	0 to 4	4	250	0.25	10	32 to 140	Vertical	Water	4446K72	00000
				3/4 NPT Female	16"	0 to 8	8	500	0.25	20	32 to 140	Vertical	Water	4446K73	00000
				3/4 NPT Female	25"	0 to 16	16	1,000	0.25	20	32 to 140	Vertical	Water	4446K74	00000
				1 NPT Female	24"	0 to 32	32	2,000	1	50	32 to 140	Vertical	Water	4446K75	000000
				1 NPT Female	34"	0 to 64	64	4,000	1	100	32 to 140	Vertical	Water	4446K76	000000
				2 NPT Female	27"	0 to 160	160	10,000	5	500	32 to 140	Vertical	Water	4446K77	000000
				2 NPT Female	46"	0 to 320	320	20,000	5	500	32 to 140	Vertical	Water	4446K78	000000

Flow Sights for Chemicals

To withstand corrosive chemical solutions, these sights have a PVC body, a fluoroelastomer seal, and an acrylic window. The large tubular window provides an unobstructed view of your process media for checking movement, clarity, and color from multiple angles.

					Window
	Pipe Size	Thread Type	Gender	Temp. Range, ° F	Lg.	Type	End-to-End Lg.	Ht.	Max. Pressure @ Temp.	Direction of Flow	For Use With		Each
No Indicator







				PVC Body

				1/2	NPT	Female	40 to 140	2 1/4"	Tubular	4 3/4"	2 1/2"	110 psi @ 70° F	Any Direction	Chemicals	4338K21	0000000


				3/4	NPT	Female	40 to 140	2 1/4"	Tubular	4 3/4"	2 1/2"	110 psi @ 70° F	Any Direction	Chemicals	4338K23	000000
				1	NPT	Female	40 to 140	2 1/4"	Tubular	5 1/4"	3"	110 psi @ 70° F	Any Direction	Chemicals	4338K25	000000
				1 1/2	NPT	Female	40 to 140	2 1/2"	Tubular	5 7/8"	3 1/2"	110 psi @ 70° F	Any Direction	Chemicals	4338K27	000000
				2	NPT	Female	40 to 140	3 1/8"	Tubular	7 3/8"	4"	110 psi @ 70° F	Any Direction	Chemicals	4338K29	000000