Paddlewheel Flowmeters | McMaster-Carr

	Pipe Size Pipe Size

	Thread Type Thread Type

NPSM

NPT

	Connection Style Connection Style


Threaded	Socket Connect

	Maximum Flow Maximum Flow

	Gender Gender

Male

Female

	Body Material Body Material

Polypropylene Plastic

PVC Plastic

	Maximum Temperature Maximum Temperature

149° F

200° F

	Mounting Orientation Mounting Orientation

Horizontal

Vertical

	Flow Measurement Scale Flow Measurement Scale

Gallons per Minute

Gallons per Second

Liters per Second

	Maximum Pressure Maximum Pressure

180 psi @ 70° F

300 psi @ 70° F

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Minimum Flow Minimum Flow

	Direction of Flow Direction of Flow

Left to Right

Bottom to Top

Top to Bottom

	End-to-End Length End-to-End Length

	Component Component

Tee Fitting

Display

Sensor

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Environment Environment

	Battery Size Battery Size

AAA

	Environmental Rating Environmental Rating

NEMA 4X

IP56

IP65

	Connection Connection

Inlet

Outlet

Sensor

	Volume Measurement Scale Volume Measurement Scale

Liters

Gallons

	Maximum Total Volume Maximum Total Volume

31 Products

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.

Remote-Reading Socket-Connect Flowmeter/Totalizers for Water

With a display that can be placed up to 25 feet from the sensor, these flowmeter/totalizers are often used in hard-to-access areas. For a complete unit, order a display, a sensor, and a tee fitting.

Display can be programmed to show flow rate in gallons or liters per second, minute, hour, or day. It has an enclosure that meets NEMA 4X for protection from dust, washdowns, and corrosion.

Sensor installs in a tee fitting (sold separately). It includes 25 feet of cable with wire leads.

Tee fitting has two unthreaded female socket end connections; connect with PVC cement and primer.

For technical drawings and 3-D models, click on a part number.

Display

					For Panel Cutout
Max. Total Volume	Accuracy	Max. Pressure	Temperature Range, °F	DIN Trade Size	Ht., mm	Wd., mm	Dp., mm	Batteries Included	Environmental Rating		Each
Gallons per Second, Liters per Second
9,999 gallons, 9,999 liters	±0.5%	180 psi @ 70° F	33° to 149°	1/4	96	96	41	Yes	IP65, NEMA 4X	00000000	0000000

Optional Surface-Mounting Bracket (Four 3/16" × 3/4" Mounting Slots)

0000000

Each

000000

Sensor

Polypropylene Plastic Body
Pipe Connection	End-to-End Lg.	Accuracy	Max. Pressure	Temp. Range, °F	Mounting Orientation		Each
1 1/4 NPSM	4.1"	±1%	180 psi @ 70° F	33° to 149°	Horizontal, Vertical	00000000	0000000

Replacement PVDF Plastic Rotors	0000000	Each	0000000
Replacement Titanium Rotor Pins	0000000	Each	00000

Tee Fittings

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°	Horizontal, Vertical	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°	Horizontal, Vertical	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°	Horizontal, Vertical	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°	Horizontal, Vertical	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°	Horizontal, Vertical	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°	Horizontal, Vertical	00000000	000000

Washdown Flowmeter/Totalizers for Water

For protection from dust, washdowns, and corrosion, these flowmeter/totalizers have an enclosure that meets NEMA 4X. They measure both the flow rate and the total flow volume of water. Reset the total flow volume to zero with the reset button. The reset function can be disabled to prevent tampering.

Washdown Flowmeter/Totalizers for Water

Flowmeter/Totalizer

Polypropylene Plastic Body
Pipe Connections	End-to-End Lg.	Flow Range, gpm	Accuracy	Max. Total Volume, gallons	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Batteries Included	Environmental Rating		Each
Gallons per Minute
3/8 NPT Male	4 3/4"	0.8 to 8	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	0000000
1/2 NPT Male	5 1/8"	2 to 20	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
3/4 NPT Male	5 1/4"	3 to 30	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
1 NPT Male	5 5/8"	5 to 50	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
1 1/2 NPT Male	6 1/2"	6 to 60	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
2 NPT Male	6 3/4"	10 to 100	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000

Replacement Parts

Replacement Axle

Replacement Paddle-Axle Kit

Component		Each
Axles	00000000	000000
Paddle-Axle Kits	00000000	000000

Washdown Flowmeters for Water

For protection from dust, washdowns, and corrosion, these flowmeters have an enclosure that meets NEMA 4X. They install directly in your pipeline to check the flow rate of water in your system.

Washdown Flowmeters for Water

Flowmeter

Polypropylene Plastic Body with Polypropylene Plastic Fittings
Pipe Connections	End-to-End Lg.	Flow Range, gpm	Accuracy	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Batteries Included	Environmental Rating		Each
Gallons per Minute
3/8 NPT Male	4 3/4"	0.8 to 8	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	0000000
1/2 NPT Male	5 1/8"	2 to 20	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	000000
3/4 NPT Male	5 1/4"	3 to 30	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	000000
1 NPT Male	5 5/8"	5 to 50	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	000000
1 1/2 NPT Male	6 1/2"	6 to 60	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	000000
2 NPT Male	6 3/4"	10 to 100	±2%	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal	Yes	IP56, NEMA 4X	0000000	000000

Replacement Parts

Replacement Axle

Replacement Paddle-Axle Kit

Component		Each
Axles	00000000	000000
Paddle-Axle Kits	00000000	000000

Washdown Totalizers for Water

The enclosure meets NEMA 4X to protect these totalizers from dust, washdowns, and corrosion. They measure the total flow volume of water in your system and have a button to reset the total volume to zero. The reset function can be disabled to prevent tampering.

Washdown Totalizers for Water

Totalizer

Polypropylene Plastic Body
Pipe Connections	End-to-End Lg.	Flow Range, gpm	Accuracy	Max. Total Volume, gallons	Max. Pressure	Temp. Range, °F	Seal Material	Mounting Orientation	Batteries Included	Environmental Rating		Each
Gallons
3/8 NPT Male	4 3/4"	0.8 to 8	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	0000000
1/2 NPT Male	5 1/8"	2 to 20	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
3/4 NPT Male	5 1/4"	3 to 30	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
1 NPT Male	5 5/8"	5 to 50	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
1 1/2 NPT Male	6 1/2"	6 to 60	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000
2 NPT Male	6 3/4"	10 to 100	±2%	999,999	300 psi @ 70° F	33° to 200°	Fluoroelastomer Rubber	Horizontal, Vertical	Yes	IP56, NEMA 4X	0000000	000000

Replacement Parts

Replacement Axle

Replacement Paddle-Axle Kit

Component		Each
Axles	00000000	000000
Paddle-Axle Kits	00000000	000000