1 1/4 Pipe Size Flowmeters

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28 Products

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.

Sensors

Sensors thread onto the tee fitting.

	Sensors									Replacement Flowmeter Rotors		Replacement Flowmeter Rotor Pins
					Temp., ° F
	Connections	End-to-End Lg.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Mounting Position		Each		Each		Each
Polypropylene Body



		1 1/4 NPSM	4.1"	±1%	180 psi @ 70° F	33	149	Any Angle	4114K222	0000000	4114K98	000000	4114K99	000000

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

Insertion Flowmeters

No need to disassemble your PVC pipeline—insert these flowmeters into a drilled hole and secure them using the included clamps. As liquid flows through the meter, it pushes an indicator up the scale, showing you the flow rate. They have a clear body, so you can check the color and clarity of flowing liquid to identify and diagnose problems. Mount these flowmeters vertically.

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.

		Flow for Pipe Schedule, gpm					Temp., ° F
	Pipe Size	Schedule 40	Schedule 80	Overall Ht.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position		Each
Acrylic Plastic Body with 316 Stainless Steel Fittings



		1 1/4	9 to 50	8 to 40	6"	±5%	75 psi @ 70° F	33	190	Neoprene	Vertical	4349K2	0000000

High-Temperature and Pressure Flowmeters

With a maximum temperature of 240° F and a maximum pressure of 3,500 psi, these flowmeters measure the flow rate of liquids that are too hot or pressurized for standard flowmeters. As your liquid flows through, it pushes an indicator up the scale, showing you the flow rate. They measure flow correctly in any mounting orientation. Install them inline with your pipe system. They have brass fittings that resist impact better than plastic fittings.

					Temp., ° F
	Flow, gpm	End-to-End Lg.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position		Each
Brass Body with Brass Fittings







				1 1/4 NPTF Female

				5 to 50	12 1/4"	±2%	3,500 psi @ 70° F	-20	240	Fluoroelastomer	Any Angle	4230K78	000000000


				10 to 100	12 1/4"	±2%	3,500 psi @ 70° F	-20	240	Fluoroelastomer	Any Angle	4230K88	00000000
				10 to 150	12 1/4"	±2%	3,500 psi @ 70° F	-20	240	Fluoroelastomer	Any Angle	4230K29	00000000

Totalizers for Natural, Propane, and Butane Gas


	Analog Display

Often used in heating, cooking, and power-generating systems, these totalizers measure the total amount of natural gas, propane, and butane that flow through them. They use positive displacement, so they measure the flow by passing specific volumes of gas through their diaphragm. Their total cannot be reset. Mount them inline with your pipe system.

						Temp., ° F
	Connections	Flow, ft³/hr	Maximum Total Volume Displayed	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position	Ht.	Wd.	Dp.	Display Type		Each
Aluminum Body with Iron Fittings



		1 1/4 NPT Male	0 to 425	999,900 Cubic Feet	±1%	10 psi @ 70° F	-30	140	Buna-N	Horizontal	15"	11"	10"	Analog	4360K22	0000000

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.

	Accuracy	Max. Pressure @ Temp.	Min. Temp., ° F	Body Material	Seal Material	Mounting Position	Features		Each
NPTF Female Pipe Connection







	Aluminum Fitting—240° F Maximum Temperature

	1 1/4	5 to 50	12 1/4"	±2%	3,500 psi @ 70° F	-20	Aluminum	Fluoroelastomer	Any Angle	Rotating Scale	4263K61	000000000


	1 1/4	10 to 100	12 1/4"	±2%	3,500 psi @ 70° F	-20	Aluminum	Fluoroelastomer	Any Angle	Rotating Scale	4263K64	00000000

Flow- and Pressure-Testing Flowmeters for Oil

Often used to find worn components or leaks, these flowmeters have a valve, so you can test the flow of oil from pumps and other equipment at different pressures. Keep the valve fully open to measure the maximum flow rate at zero pressure. Pressure increases as you close the valve. 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 are accurate in any mounting orientation. Mount them inline with your pipe system.

					Temp., ° F		Pressure Gauge
	Flow, gpm	End-to-End Lg.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Measurement, psi	Dial Size	Body Material	Seal Material	Mounting Position	Features		Each
Aluminum Fitting with Aluminum Valve







				1 1/4 NPTF Threaded Male Pipe Inlet × 1 1/4 NPTF Threaded Female Pipe Outlet

				10 to 100	22"	±2%	3,500 psi @ 70° F	-20	240	0 to 3,500	2 1/2"	Aluminum	Fluoroelastomer	Any Angle	Rotating Scale	4263K62	000000000

Flow Sights with Indicator for Water and Oil


Rotor Indicator Front Window	Rotor Indicator Front and Back Window

The indicator moves when flow is present, so it’s easy to visually confirm flow from a distance.

Rotor Indicator—Rotor indicator is the most obvious indicator of flow for maximum visibility.

Bronze Body—Sights with a bronze body are harder and more durable than sights with a brass body for a longer service life.

316 Stainless Steel Body—Sights with a 316 stainless steel body are more corrosion resistant than sights with a brass or bronze body.

Front and Back Window—Back window can be backlit to increase the visibility of dark liquids.

					Window						Indicator
	Pipe Size	Thread Type	Gender	Temp. Range, ° F	Dia.	Type	End-to-End Lg.	Ht.	Max. Pressure @ Temp.	Direction of Flow	Material	Color	For Use With		Each
Rotor Indicator







				Bronze Body

				1 1/4	NPT	Female	-20 to 200	2"	Front	4 3/8"	3 1/8"	125 psi @ 70° F	Left to Right, Right to Left	Acetal	White	Water, Oil	4195K18	0000000


				1 1/4	NPT	Female	-20 to 200	2"	Front and Back	4 3/8"	3 1/8"	125 psi @ 70° F	Left to Right, Right to Left	Acetal	White	Water, Oil	4200K35	000000




						316 Stainless Steel Body

						1 1/4	NPT	Female	40 to 200	2"	Front and Back	4 3/8"	2 1/2"	125 psi @ 70° F	Left to Right, Right to Left	316 Stainless Steel	—	Water, Oil	5088K58	000000

Fixed-Set-Point Flow Switches

Style C

Since they come factory set to a specific set point, these switches are easier to install than adjustable flow switches. As flowing liquid pushes an internal piston, the switch reads the position of the piston to measure the flow. When the piston passes the set point, the switch actuates. They’re accurate in any mounting position.

These switches are calibrated with and measure water accurately. They can also be used with other liquids by applying your liquid’s specific-gravity conversion factor to calculate the new set point.

Choose a fitting material that is compatible with the liquid you intend to run through your line.

Straight

Style C

Bronze Fitting—Bronze and 316 stainless steel fittings resist impact better than plastic fittings.

SPDT—SPDT (single pole, double throw) switches can either turn one device from off to on (normally open) or from on to off (normally closed).

										Conduit
	Style	Pipe Size	Thread Type	Gender	Set Point, gpm	Approx. Difference Between Set Point and Reset Point, gpm	Max. Pressure @ Temp.	Temp. Range, ° F	Max. Switching Current @ Voltage	Trade Size	Thread Type	Gender	End-to-End Lg.	Mounting Position		Each
Bronze Body with Bronze Fittings







				SPDT

				C	1 1/4	NPT	Female	1	0.15	400 psi @ 70° F	-20 to 300	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	1/2	NPT	Male	4"	Any Angle	6486T231	0000000


				C	1 1/4	NPT	Female	4	0.6	400 psi @ 70° F	-20 to 300	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	1/2	NPT	Male	4"	Any Angle	6486T232	000000
				C	1 1/4	NPT	Female	20	3	400 psi @ 70° F	-20 to 300	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	1/2	NPT	Male	4"	Any Angle	6486T235	000000

Fixed-Set-Point Insertion-Mount 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 Pipe Size	Set Point, gpm	Max. Flow Rate, gpm	Max. Pressure @ Temp.	Temp. Range, ° F	Voltage	Max. Switching Current @ Voltage	Body Ht.	Enclosure Rating	Specs. Met		Each
Noryl Body with Socket-Connect PVC Fittings



	3/4	1 1 1/4	2.7, 6.8	31, 40	160 psi @ 70° F	-13 to 212	230V AC/48V DC	1 amp @ 230V AC 1 amp @ 48V DC	2 1/2"	IP65	UL 508	2766K115	0000000

Fixed-Set-Point Hazardous-Location Flow Switches

Safe to use where flammable gases and combustible dust may be present, these switches activate or deactivate when your flow reaches a factory-set level. All are UL listed for hazardous environments. Because their set point is fixed, they’re ready to go, making them easy to install. They actuate when your flowing liquid or gas pushes their paddle into a set position. These switches are single pole, double throw (SPDT) and can turn one device from off to on (normally open) or from on to off (normally closed). They must be mounted horizontally to function accurately.

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.

		Set Point						Conduit
	Pipe Connections	For Liquids, gpm	For Gas, scfm	Max. Pressure @ Temp.	Temp. Range, ° F	Voltage, V AC	Max. Switching Current @ Voltage	Trade Size	Thread Type	Gender	End-to-End Lg.	Enclosure Rating	Certification		Each
Brass Body with Threaded Brass Fittings



		1 1/4 NPT Female	4	21	250 psi @ 70° F	-4 to 220	120/240	5 amp @ 120V AC	3/4	NPT	Male	2 5/8"	NEMA 4	UL Listed CE Marked	47565K34	0000000

High-Temperature Flow Sights for Water and Oil

Flapper Indicator

Withstand twice the temperature of standard flow sights for applications with temperatures up to 400° F. These sights let you visually confirm flow and inspect liquid color and clarity. The flapper indicator moves when flow is present, so it’s easy to confirm flow from a distance. Backlight the back window to increase the visibility of dark liquids. The brass body of these sights resists corrosion.

					Window
	Pipe Size	Thread Type	Gender	Temp. Range, ° F	Dia.	Type	End-to-End Lg.	Ht.	Max. Pressure @ Temp.	Direction of Flow	Indicator Material	For Use With		Each
Flapper Indicator







				Brass Body

				1 1/4	NPT	Female	0 to 400	2 5/8"	Front and Back	5 3/8"	3 1/8"	150 psi @ 70° F	Any Direction	304 Stainless Steel	Water, Oil	4213K145	0000000

Flow Sights for Water and Oil

Visually confirm flow and inspect the color and clarity of your process media. These sights have a back window that can be backlit to increase the visibility of dark liquids.

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







				Bronze Body

				1 1/4	NPT	Female	-20 to 200	2"	Front and Back	4 3/8"	3 1/8"	125 psi @ 70° F	Any Direction	Water, Oil	4206K26	0000000

Full-View Flow Sights with Indicator for Water and Oil

A ball indicator moves when flow is present so you can confirm flow at a distance. The large tubular window provides an unobstructed view for checking liquid movement, clarity, and color from multiple angles.

					Window						Indicator
	Pipe Size	Thread Type	Gender	Temp. Range, ° F	Lg.	Type	End-to-End Lg.	Ht.	Max. Pressure @ Temp.	Direction of Flow	Material	Color	For Use With		Each
Ball Indicator







				Brass Body

				1 1/4	NPTF	Female	-40 to 185	2 1/8"	Tubular	5 5/8"	3"	100 psi @ 70° F	Bottom to Top, Left to Right, Right to Left	Nylon	White	Water, Oil	4470K27	0000000