Corrosive Environment Flow Switches

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Pipe Size

For Use With

Voltage

Fitting Connection

Wetted Parts Material

Viton® Fluoroelastomer

Body Material

Maximum Flow Rate

Calibrated With

Enclosure Rating

Environment

High-Pressure Washdown

Flow Measurement Type

Differential Pressure

Paddle

Maximum Pressure @ Temperature

Fitting Material

Approximate Difference Between Set Point and Reset Point

Maximum Switching Current @ Voltage

Switch Designation

Shape

Number of Circuits Controlled

Connects To

Pipe

Minimum Temperature

-25° F or less

25° F or greater

Set Point Configuration

Adjustable

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

23 Products

Insertion-Mount Flow Switches

Threaded

Connection with

NEMA 4X Rating

Avoid complicated inline installation—these flow switches insert into a tee or pipe outlet, so you don’t need to disassemble your pipeline. 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. They are single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). They should be mounted vertically into a large-diameter horizontal pipeline, so liquid pushes the paddle.

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.

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

Brass Body—Switches with a brass or 316 stainless steel body have multiple paddles you can choose between to get you closest to your set point. For a higher set point, loosen the locking washers to remove the largest paddles. You can also trim the paddles to fine-tune your set point. The more you trim, the higher the set point.

Brass Fitting—Brass and 316 stainless steel fittings resist impact better than Noryl fittings.

NEMA 4X Enclosure Rating—NEMA 4X rated switches protect against dust, weather, and washdowns.

	Paddle Material	Max. Pressure @ Temp.	Temp. Range, ° F	Max. Switching Current @ Voltage	Body Ht.	Enclosure Rating	Certification		Each
Brass Body with 1 NPT Male Threaded Brass Fittings







	Set-Point-Adjustment Removable Layered Paddles, Set-Point-Adjustment Trimmable Paddles

	1 2 4 6	4.9 to 17.6 13.7 to 56.4 35.3 to 118 60.3 to 245	27, 105, 397, 900	304 Stainless Steel	160 psi @ 70° F	33 to 225	3.7 amp @ 240V AC 7.4 amp @ 120V AC	5"	NEMA 4X	C-UL Listed UL Recognized Component	4971K5	0000000

Variable-Pressure Flow Switches

Accurate even in applications where pressure fluctuates regularly, these flow switches split flow into two paths and measure their difference in pressure drop to calculate the flow rate of liquid. They activate or deactivate equipment when the flow rate reaches your set point. Tighten or loosen the adjustment screw to choose your set point anywhere within the range. They measure accurately no matter their mounting position. 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). Rated NEMA 4X and IP66, they seal out dust and protect against washdowns and corrosion.

These switches are calibrated with water. They can also be used with other liquids but may not measure accurately if their viscosity is significantly different.

	Max. Pressure @ Temp.	Temp. Range, ° F	Voltage	Max. Switching Current @ Voltage	Conduit Trade Size	End-to-End Lg.		Each
Bronze Body







			1/4 NPT Female

			0.3 to 2	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T211	0000000


			0.4 to 3	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T212	000000
			0.5 to 4	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T213	000000




					1/2 NPT Female

					0.3 to 2	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T221	000000


					0.4 to 3	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T222	000000
					0.5 to 4	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T223	000000
					0.5 to 6	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T224	000000
					1.5 to 10	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T225	000000




							3/4 NPT Female

							0.5 to 6	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T231	000000


							1.5 to 10	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T232	000000
							2 to 15	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T233	000000
							3 to 20	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T234	000000




									1 NPT Female

									2 to 15	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T241	000000


									3 to 20	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T242	000000
									4 to 30	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T243	000000
									5 to 40	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T244	000000




											1 1/2 NPT Female

											4 to 30	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T251	000000


											5 to 60	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T253	000000
											15 to 100	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 1/16"	2913T254	000000




											2 NPT Female

											5 to 40	400 psi @ 70° F	-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 3/16"	2913T261	000000


	15 to 100	400 psi @ 70° F									-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 3/16"	2913T263	000000
	30 to 200	400 psi @ 70° F									-30 to 212	120V AC/175V DC	180 mA @ 120V AC 250 mA @ 175V DC	1/2	3 3/16"	2913T265	000000