304 Stainless Steel Flow Switches

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0.18 scfm to 2.7 scfm

0.38 scfm to 44 scfm

0.54 scfm to 8.05 scfm

1.1 scfm to 132 scfm

1.21 scfm to 18.11 scfm

2.15 scfm to 32.21 scfm

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15 Products

Electronic Insertion-Mount Flow Switches

Instead of disassembling your system for inline installation, thread these flow switches onto a mounting adapter (sold separately) and insert them into a pipe tee or pipe outlet. They send digital signals to your programmable logic controller (PLC) to activate automated controls or alarms when they reach a set flow rate. To calculate the flow rate, they generate a small amount of heat, then measure the cooling effect your liquid or gas has on it. This makes them ideal in applications with fluctuating temperatures. Use the buttons on the display to adjust the set point and other settings. These switches are accurate in any mounting position.

IP65 rated switches protect against dust and washdowns. IP67 rated switches withstand temporary submersion.

		Flow Set Point									1 13/16" Probe Length
	For Pipe Size	For Liquids, gpm	For Gas, scfm	Max. Pressure @ Temp.	Temp. Range, ° F	Voltage, V DC	Max. Switching Current @ Voltage	Body Ht.	Enclosure Rating	Certification		Each
304 Stainless Steel Body with 316 Stainless Steel Fittings







				1 Digital NPN Signal Output

				1/4 1/2 3/4 1	0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23	0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21	4,300 psi @ 70° F	-10 to 175	36	250 mA @ 19V DC 250 mA @ 36V DC	2 11/16"	IP65, IP67	C-UL Listed UL Listed CE Marked	4547N13	0000000




						1 Digital PNP Signal Output

						1/4 1/2 3/4 1	0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23	0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21	4,300 psi @ 70° F	-10 to 175	36	250 mA @ 36V DC 250 mA @ 18V DC	2 11/16"	IP65, IP67	C-UL Listed UL Listed CE Marked	4547N11	000000




								2 Digital NPN Signal Output

								1/4 1/2 3/4 1	0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23	0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21	4,300 psi @ 70° F	-10 to 175	36	250 mA @ 19V DC 250 mA @ 36V DC	2 11/16"	IP65, IP67	C-UL Listed UL Listed CE Marked	4547N14	000000




										2 Digital PNP Signal Output

										1/4 1/2 3/4 1	0.02 to 1.5 0.05 to 4.9 0.13 to 12.7 0.23 to 23	0.14 to 2 0.54 to 8.05 1.21 to 18.11 2.15 to 32.21	4,300 psi @ 70° F	-10 to 175	36	250 mA @ 36V DC 250 mA @ 18V DC	2 11/16"	IP65, IP67	C-UL Listed UL Listed CE Marked	4547N12	000000

Mounting Adapters

Threaded Fitting

Connection

	Thread Type	Gender	Lg.	Material		Each
Threaded Fitting Connection



	1/4	NPT	Male	1 7/16"	316 Stainless Steel	4547N15	000000


	1/2	NPT	Male	1 1/8"	316 Stainless Steel	4547N16	00000
	3/4	NPT	Male	15/16"	304 Stainless Steel	4547N17	00000
	1	NPT	Male	1 3/8"	304 Stainless Steel, Brass	4547N18	00000

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
304 Stainless Steel Body with Threaded 304 Stainless Steel Fittings



		1/2 NPT Female	1.5	6.5	2,000 psi @ 70° F	-4 to 220	120/240	5 amp @ 120V AC	3/4	NPT	Male	2 1/4"	NEMA 4	UL Listed CE Marked	47565K61	0000000


		3/4 NPT Female	2	10	2,000 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	47565K62	000000
		1 NPT Female	3	14	2,000 psi @ 70° F	-4 to 220	120/240	5 amp @ 120V AC	3/4	NPT	Male	3"	NEMA 4	UL Listed CE Marked	47565K63	000000
		2 NPT Female	10	43	2,000 psi @ 70° F	-4 to 220	120/240	5 amp @ 120V AC	3/4	NPT	Male	4 3/4"	NEMA 4	UL Listed CE Marked	47565K66	00000000

Hazardous-Location Flow Switches

UL listed for use where flammable gases or combustible dusts may be present, these flow switches activate or deactivate equipment when your flow rate reaches a set point. Use the adjustment screw to select their set point. They actuate when your flowing liquid or gas pushes their paddle into a certain position determined by the set point. 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). Mount them horizontally. Rated NEMA 4, they also protect against weather and washdowns.

These flow switches are calibrated with water and air. You can use them with other liquids and gases, but they may not measure accurately if the viscosity is different from water or air.

		Flow 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
304 Stainless Steel Body with Threaded 304 Stainless Steel Fittings



		1/2 NPT Female	0.04 to 0.75	0.18 to 2.7	1,450 psi @ 70° F	-4 to 220	120/240	5 amp @ 120V AC	3/4	NPT	Male	3 5/8"	NEMA 4	UL Listed CE Marked	91445K24	0000000

Flow, Pressure, and Temperature Transmitters for Gases

Measure and transmit flow rate, pressure, and temperature of industrial gases, such as air, argon, CO2, and nitrogen, flowing through your system. These transmitters are ideal for applications where temperature and pressure can fluctuate. To calculate flow rate, they generate a small amount of heat, then measure the cooling effect your gas has on it. Also known as transducers, these transmitters convert measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs). As flow, temperature, and pressure increases, the output signal increases. For your receiving device to interpret the signal, 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. Mount them directly inline with your system. They measure correctly no matter their mounting orientation.

A digital display makes it easy to read measurements and adjust settings based on your gas. These transmitters have two configurable outputs, and each output can only be wired for one measurement (flow rate, pressure, or temperature). Outputs configured as digital pulse send flow data using spikes of voltage that match the input voltage of the transmitter. One of the outputs can be wired for IO-Link, so you can change settings and receive error messages remotely from your PLC or computer. You’ll need an IO Link controller (not included) to connect to your interface.

These transmitters are calibrated with air but still measure accurately when used with other gases.

	End-to-End Lg.	Accuracy	Max. Pressure @ Temp.	Temp. Range, ° F	Seal Material	Input Voltage Range, V DC	Mounting Position	Field Recalibratable	Enclosure Rating		Each
One Digital Switch/Pulse Output and One 4-20 mA Analog Transmitter/Digital Switch/Pulse Output—4-Pole M12 Connection Plug







	304 Stainless Steel Body with 304 Stainless Steel Fitting

	Thermal	1/2 NPT Male	0.15 to 44	11 13/16"	±6%	230 psi @ 70° F	14 to 140	Fluoroelastomer	18 to 30	Any Angle	No	IP65, IP67	4384N11	000000000


	Thermal	1 NPT Male	0.4 to 132	18 3/4"	±6%	230 psi @ 70° F	14 to 140	Fluoroelastomer	18 to 30	Any Angle	No	IP65, IP67	4384N12	00000000