3/8 Pipe Size Flow Switches

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Set Point

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For Use With

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Calibrated With

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Maximum Pressure @ Temperature

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Connects To

Maximum Switching Current @ Voltage

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Flow Measurement Type

Gender

Mounting Location

Number of Wire Leads

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CE Marked

UL Recognized Component

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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EAR99

DFARS Specialty Metals

RoHS

18 Products

Fixed-Set-Point Flow Switches

Style B

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 B

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

SPST—SPST (single pole, single throw) switches turn one device from off to on (normally open).

	Gender	Set Point, gpm	Approx. Difference Between Set Point and Reset Point, gpm	Max. Pressure @ Temp.	Temp. Range, ° F	Max. Switching Current @ Voltage	End-to-End Lg.	Mounting Position		Each
Polypropylene Body with Polypropylene Fittings







	SPST

	B	3/8	NPT	Male	0.25	0.05	125 psi @ 70° F	33 to 212	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	4"	Any Angle	42015K21	000000


	B	3/8	NPT	Male	0.5	0.1	125 psi @ 70° F	33 to 212	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	4"	Any Angle	42015K22	00000
	B	3/8	NPT	Male	1	0.2	125 psi @ 70° F	33 to 212	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	4"	Any Angle	42015K23	00000
	B	3/8	NPT	Male	1.5	0.3	125 psi @ 70° F	33 to 212	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	4"	Any Angle	42015K24	00000
	B	3/8	NPT	Male	2	0.4	125 psi @ 70° F	33 to 212	400 mA @ 30V AC 170 mA @ 120V AC 80 mA @ 240V AC 300 mA @ 30V DC 130 mA @ 120V DC 60 mA @ 240V DC	4"	Any Angle	42015K25	00000

Fixed-Set-Point High-Pressure Flow Switches

Quicker to install than adjustable flow switches in high-pressure lines, these switches come factory-set to activate or deactivate equipment at a specific level. They compensate for the viscosity and density changes of liquid. As flowing liquid pushes an internal piston, the switch reads the piston's position to measure the flow. When the piston passes the set point, the switch actuates. All measure flow correctly no matter their mounting position.

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

Straight

SPST—SPST (single pole, single throw) switches turn one device from off to on (normally open).

	Max. Pressure @ Temp.	Temp. Range, ° F	Max. Switching Current @ Voltage	End-to-End Lg.		Each
SPST







	Brass Body with Brass Fittings

	3/8 NPT Male	0.25	0.05	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K51	0000000


	3/8 NPT Male	0.5	0.1	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K52	000000
	3/8 NPT Male	1	0.2	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K53	000000
	3/8 NPT Male	1.5	0.3	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K54	000000
	3/8 NPT Male	2	0.4	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K55	000000




			316 Stainless Steel Body with 316 Stainless Steel Fittings

			3/8 NPT Male	0.25	0.05	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K71	000000


			3/8 NPT Male	0.5	0.1	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K72	000000
			3/8 NPT Male	2	0.4	1,500 psi @ 70° F	-20 to 275	0.4 amp @ 30V AC 0.17 amp @ 120V AC 0.08 amp @ 240V AC 0.3 amp @ 30V DC 0.13 amp @ 120V DC 0.06 amp @ 240V DC	3 7/16"	4960K75	000000

Flow Transmitters

Turbine Flow

Measurement

Send flow rate measurements to monitor and control equipment. Also known as transducers, these transmitters convert flow rate measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs). As flow 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 flow correctly no matter their mounting orientation.

These transmitters 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.

Turbine Flow Measurement—Turbine transmitters 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. The digital output sends flow data with a pulse, which is a spike of voltage. The higher the flow, the more pulses they send. The voltage of the pulse output matches the input voltage sent to the transmitters. These transmitters meet NSF/ANSI 61 for use with drinking water.

	End-to-End Lg.	Accuracy	Max. Pressure @ Temp.	Temp. Range, ° F	Input Voltage Range, V DC	Mounting Position	Field Recalibratable	Pulse Freq., Hz		Each
One Analog Transmitter/Digital Pulse Output—Wire Lead Connection







	Nylon Body with Nylon Fitting

	Turbine	3/8 NPT Male	0.13 to 1.3	2 5/32"	±3%	362 psi @ 212° F	-4 to 212	5 to 24	Any Angle	No	56 to 565	4386N202	0000000


	Turbine	3/8 NPT Male	0.26 to 4	2 5/32"	±3%	362 psi @ 212° F	-4 to 212	5 to 24	Any Angle	No	36 to 553	4386N203	000000
	Turbine	3/8 NPT Male	0.53 to 9.2	2 5/32"	±3%	362 psi @ 212° F	-4 to 212	5 to 24	Any Angle	No	25 to 435	4386N204	000000




			Brass Body with Brass Fitting

			Turbine	3/8 NPT Male	0.5 to 2.11	2 5/32"	±3%	362 psi @ 212° F	-4 to 212	5 to 24	Any Angle	No	132 to 559	4386N206	000000


			Turbine	3/8 NPT Male	0.8 to 6.6	2 5/32"	±3%	362 psi @ 212° F	-4 to 212	5 to 24	Any Angle	No	46 to 383	4386N207	000000