Fixed-Setpoint Flow Switches for Drinking Water
Factory set to activate equipment when your drinking water system reaches a fixed level, these flow switches are easier to install than adjustable flow switches. They meet NSF/ANSI 61, so they're safe to use with drinking water. They actuate when your system’s flowing water pushes their paddle into a set position. These switches are single pole, single throw (SPST) and turn one device from off to on. IP rated, they seal out dust and can be lightly rinsed. They're accurate in any mounting orientation.
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 technical drawings and 3-D models, click on a part number.
| Pipe Size  | Thread Type | Gender | Set Point, gpm | Max. Pressure | Temp. Range, °F | Voltage | Max. Switching Current @ Voltage | End-to-End Lg. | Environmental Rating | Specifications Met | Each | |
Noryl Plastic Body | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | NPT | Female | 0.6 | 145 psi @ 70° F | -4° to 212° | 48V DC/ 230V AC | 1 A @ 48 V DC, 1 A @ 230 V AC | 2" | IP65 | CE Marked, NSF/ANSI 61 | 0000000 | 0000000 |
Insertion Flow Switches
Connection
with IP65 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.
Switches with a Noryl plastic body have a paddle that you trim to adjust the set point. The more you trim, the higher the set point.
Choose a fitting material that is compatible with the liquid you're running through your line. Noryl plastic fittings work with a wide range of chemicals. Brass and 316 stainless steel fittings resist impact better than Noryl plastic fittings.
Socket-connect flow switches bond to an unthreaded PVC pipe tee or pipe outlet with PVC cement and primer (not included).
IP65 rated switches seal out dust and can be lightly rinsed.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Thread Type | Gender | For Pipe Size | Set Point Range, gpm | Max. Flow Rate, gpm | Set Point Adjustment Method | Paddle Material | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Environmental Rating | Specifications Met | Each | |
Noryl Plastic Body with Noryl Plastic Fittings | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Socket Connection | |||||||||||||||
| 3/4 | __ | __ | 1 1/2 2 3 | 7.7 to 19.3 10.3 to 21 16.5 to 52 | 110 150 390 | Trimmable Paddles | Noryl Plastic | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 0000000 | 0000000 |
| 3/4 | __ | __ | 1 1/2 2 3 | 7.9 to 15 10 to 22 18 to 50 | 144 240 650 | Trimmable Paddles | 301 Stainless Steel | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |
Noryl Plastic Body with Brass Fittings | |||||||||||||||
Threaded Connection | |||||||||||||||
| 1/2 | NPT | Male | 1 1/2 2 3 4 8 | 7.7 to 19.3 10.3 to 21 16.5 to 52 25.5 to 68 126 to 240 | 110 150 390 420 1100 | Trimmable Paddles | Noryl Plastic | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 0000000 | 000000 |
| 1/2 | NPT | Male | 1 1/2 2 3 4 8 | 7.9 to 15 10 to 22 18 to 50 25 to 66 114 to 176 | 144 240 650 800 1900 | Trimmable Paddles | 301 Stainless Steel | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |
Fixed-Setpoint Insertion 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 technical drawings and 3-D models, click on a part number.
| Pipe Size | For Pipe Size | Set Point, gpm | Max. Flow Rate, gpm | Max. Pressure | Temp. Range, °F | Max. Switching Current @ Voltage | Body Ht. | Environmental Rating | Specifications Met | Each | |
Noryl Plastic Body | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Socket Connection | |||||||||||
| 1/2 | 1/2 | 1.03 | 7.9 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 0000000 |
| 3/4 | 3/4 | 1.94 | 21 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |
| 3/4 | 1, 1 1/4 | 2.7, 6.8 | 31, 40 | 160 psi @ 70° F | -13° to 212° | 1 A @ 230 V AC, 1 A @ 48 V DC | 2 1/2" | IP65 | UL 508 | 00000000 | 000000 |