022666_0_000 Flow Switches

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Viton® Fluoroelastomer

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24 Products

Fixed-Setpoint Flow Switches

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 orientation.

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

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

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

Straight

Bronze and
Stainless Steel Body
with Female Fittings

								Conduit
Pipe Size	Thread Type	Gender	Set Point, gpm	Approx. Difference Between Setpoint and Reset Point, gpm	Max. Pressure	Temp. Range, °F	Max. Switching Current @ Voltage	Trade Size	Thread Type	Gender	End-to-End Lg.	Mounting Orientation		Each
Bronze Body with Bronze Fittings
SPDT
1	NPT	Female	0.5	0.075	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	0000000
1	NPT	Female	1	0.15	300 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 3/8"	Any	0000000	000000
1	NPT	Female	2	0.3	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	3	0.45	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 3/8"	Any	0000000	000000
1	NPT	Female	4	0.6	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	6	0.9	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	8	1.2	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1 1/4	NPT	Female	1	0.15	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4"	Any	00000000	000000
1 1/4	NPT	Female	4	0.6	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4"	Any	00000000	000000
1 1/4	NPT	Female	20	3	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4"	Any	00000000	000000
1 1/2	NPT	Female	1.5	0.225	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4 1/2"	Any	00000000	000000
1 1/2	NPT	Female	5	0.75	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4 1/2"	Any	00000000	000000
1 1/2	NPT	Female	30	4.5	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	4 1/2"	Any	00000000	000000
2	NPT	Female	2	0.3	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	000000
2	NPT	Female	5	0.75	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	000000
2	NPT	Female	50	7.5	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	000000
316 Stainless Steel Body with 316 Stainless Steel Fittings
SPDT
1	NPT	Female	0.5	0.075	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	2	0.3	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	4	0.6	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	6	0.9	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
1	NPT	Female	8	1.2	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	3 1/4"	Any	00000000	000000
2	NPT	Female	2	0.3	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	00000000
2	NPT	Female	5	0.75	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	00000000
2	NPT	Female	50	7.5	400 psi @ 70 ° F	-20° to 300°	400 mA @ 30 V AC 170 mA @ 120 V AC 80 mA @ 240 V AC 300 mA @ 30 V DC 130 mA @ 120 V DC 60 mA @ 240 V DC	1/2	NPT	Male	5 3/8"	Any	00000000	00000000