Flow Switches
<p>Flow switches detect fluid flow in hydraulic systems and prevent leaks. They are used in pumps in the water treatment, oil & gas and chemical industries.</p>
FS-380 Series Flow Switch
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C| Style | Model | Switch Type | Connection Type | Min. Flow Rate | Max. Flow Rate | Min. Ambient Temp. | Max. Pressure | Media Temp. Range | Max. Ambient Temp. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-380P 197083 | €159.83 | |||||||||
| B | FS-380 168435 | €312.15 | |||||||||
| C | FS-380 179992 | €687.68 | |||||||||
| C | FS-380 193482 | €665.79 | |||||||||
| A | FS-380P 197085 | €159.83 | |||||||||
| C | FS-380 179996 | €706.75 | |||||||||
| B | FS-380 168432 | €293.45 | |||||||||
| A | FS-380P 209876 | €150.09 | |||||||||
| B | FS-380 168433 | €289.54 | |||||||||
| A | FS-380P 197081 | €150.09 | |||||||||
| B | FS-380 168434 | €312.15 | |||||||||
| A | FS-380P 197082 | €150.09 | |||||||||
| B | FS-380 181130 | €312.15 | |||||||||
| B | FS-380 178353 | €312.15 | |||||||||
| A | FS-380P 197084 | €150.09 | |||||||||
| C | FS-380 179993 | €601.34 | |||||||||
| C | FS-380 179995 | €706.75 |
ASpdt Flow Switches
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HASpst Flow Switches
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BF261 Series Low-Flow Model Flow Switches
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B| Style | Model | Housing Material | Connection Size | For Pipe Size | Switch Enclosure | Enclosure Rating | Switch Type | Connection Type | Min. Flow Rate | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | F261MEH-V01C | €458.46 | |||||||||
| A | F261KEH-V01C | €444.44 | |||||||||
| B | F261KFH-V01C | €461.21 | |||||||||
| A | F261KFH-V02C | €258.59 | |||||||||
| A | F261MFH-V01C | €468.40 |
F261 Series Standard Model Flow Switches
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B| Style | Model | Switch Enclosure | Voltage | Enclosure Rating | Housing Material | Connection Size | Connection Type | For Pipe Size | Min. Flow Rate | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | F261MAL-V01C | €615.41 | |||||||||
| A | F261KAH-V01C | €413.85 | |||||||||
| B | F261MAH-V01C | €544.60 |
FSD Series Flow Switches
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B| Style | Model | MPN | Price | |
|---|---|---|---|---|
| A | FSD1-AP-26H | €327.60 | ||
| B | FSD75-AP-6H | €410.40 |
Dc, Pnp Flow Switches
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A| Style | Model | Switch Position | Max. Flow Rate | Max. Pressure | Housing Material | Switch Type | Connection Size | Connection Type | Switch Enclosure | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-150 NC 0.5GPM | €254.98 | |||||||||
| A | FS-150 NC 1.0GPM | €209.22 | |||||||||
| A | FS-150 NO 1.0GPM | €254.98 | |||||||||
| A | FS-150 NO 3.0GPM | €254.98 | |||||||||
| A | FS-150 NO 0.5GPM | €254.98 | |||||||||
| A | FS-150 NO 2.0GPM | €242.95 |
A| Style | Model | Switch Type | Min. Flow Rate | Max. Flow Rate | Housing Material | Connection Size | Connection Type | Min. Ambient Temp. | Max. Pressure | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-4 122352 | €271.46 | |||||||||
| A | FS-4 122353 | €291.56 | |||||||||
| A | FS-4 122355 | €250.91 | |||||||||
| A | FS-4 122356 | €271.46 | |||||||||
| A | FS-4 122354 | €278.38 |
Liquid Flow Switches
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E| Style | Model | Connection Size | Switch Type | Housing Material | For Pipe Size | Switch Enclosure | Overall Height | Overall Width | Overall Length | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | V4-SS-2-D-U | €1,811.46 | |||||||||
| A | V4-2-U | €1,228.27 | |||||||||
| B | V6EPB-B-S-5-B | €837.62 | |||||||||
| A | V4-2-D-U | €1,336.00 | |||||||||
| B | V6EPB-B-D-5-MI | €993.83 | |||||||||
| B | V6EPS-S-D-5-S | €1,855.03 | |||||||||
| B | V6EPS-S-S-5-S | €1,521.72 | |||||||||
| B | V6EPB-B-D-5-B | €993.83 | |||||||||
| A | V4-SS-2-U | €1,699.23 | |||||||||
| B | V6EPB-B-S-5-MI | €866.13 | |||||||||
| B | V6EPB-B-S-4-MI | €797.82 | |||||||||
| B | V6EPB-B-D-4-MI | €863.86 | |||||||||
| B | V6EPB-B-S-4-B | €738.04 | |||||||||
| B | V6EPS-S-D-4-S | €1,498.32 | |||||||||
| B | V6EPB-B-D-4-B | €863.86 | |||||||||
| B | V6EPS-S-S-4-S | €1,378.49 | |||||||||
| C | V8-WP | €311.79 | |||||||||
| B | V6EPB-B-S-3-B | €670.29 | |||||||||
| B | V6EPB-B-D-3-B | €777.82 | |||||||||
| B | V6EPS-S-S-3-S | €1,052.38 | |||||||||
| B | V6EPS-S-D-3-S | €1,180.08 | |||||||||
| D | V8 | €218.27 | |||||||||
| B | V6EPB-B-D-3-MI | €843.64 | |||||||||
| E | V7-WBS-30N | €269.61 | |||||||||
| B | V6EPB-B-S-3-MI | €722.61 |
A| Style | Model | Min. Flow Rate | Max. Flow Rate | Housing Material | Switch Type | Switch Position | Connection Size | Connection Type | Min. Ambient Temp. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-500 170231 | €780.68 | |||||||||
| A | FS-500 170232 | €210.02 | |||||||||
| A | FS-500 170233 | €196.31 | |||||||||
| A | FS-500 175117 | €210.02 | |||||||||
| A | FS-500 170234 | €210.02 | |||||||||
| A | FS-500 170235 | €210.02 |
A| Style | Model | Max. Flow Rate | Media Temp. Range | Switch Type | Connection Size | Min. Flow Rate | Connection Type | Housing Material | Min. Ambient Temp. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-926 26938 | €631.04 | |||||||||
| A | FS-926 26942 | €601.40 | |||||||||
| A | FS-926 26951 | €920.53 | |||||||||
| A | FS-926 26939 | €601.40 | |||||||||
| A | FS-926 26941 | €631.04 | |||||||||
| A | FS-926 26956 | €881.72 | |||||||||
| A | FS-926 26952 | €920.53 |
A| Style | Model | Switch Position | Min. Flow Rate | Max. Flow Rate | Housing Material | Connection Size | Connection Type | Switch Type | Max. Pressure | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | FS-927 70827 | €229.62 | |||||||||
| A | FS-927 70826 | €270.31 | |||||||||
| A | FS-927 70828 | €270.31 | |||||||||
| A | FS-927 70829 | €229.62 | |||||||||
| A | FS-927 70830 | €270.31 | |||||||||
| A | FS-927 70831 | €247.93 | |||||||||
| A | FS-927 70820 | €270.31 | |||||||||
| A | FS-927 70821 | €283.76 | |||||||||
| A | FS-927 70822 | €283.76 | |||||||||
| A | FS-927 70823 | €258.80 | |||||||||
| A | FS-927 70825 | €283.76 |
Series FS5 Switch Liquid Flow
ABSeries FS25 General Purpose Flow Switch
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BSeries FS7 Switch Liquid Flow
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DSeries FS6 Switch Liquid Flow
McDonnell & Miller FS6 liquid flow switches are designed to monitor the flow of liquids, such as water or oil, in pipes and systems. These liquid flow switches are highly sensitive and used in cooling systems, booster pumps, water treatment systems and compressors. They have a sealed compartment that protects the switch from liquids and a sensitivity adjustment screw to prevent false tripping of the flow switch. These liquid flow switches serve as a crucial safeguard, preventing damage and potential hazards caused by insufficient or excess liquid flow. They can be operated at temperatures ranging from 32 to 225 degrees F and can withstand pressures up to 100 psi. These liquid flow switches are integrated with an SPDT switch for monitoring the direction of liquid flow.
McDonnell & Miller FS6 liquid flow switches are designed to monitor the flow of liquids, such as water or oil, in pipes and systems. These liquid flow switches are highly sensitive and used in cooling systems, booster pumps, water treatment systems and compressors. They have a sealed compartment that protects the switch from liquids and a sensitivity adjustment screw to prevent false tripping of the flow switch. These liquid flow switches serve as a crucial safeguard, preventing damage and potential hazards caused by insufficient or excess liquid flow. They can be operated at temperatures ranging from 32 to 225 degrees F and can withstand pressures up to 100 psi. These liquid flow switches are integrated with an SPDT switch for monitoring the direction of liquid flow.
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BCSeries AF Air Flow Switch
ABFlow Switch 3.5 - 600 Spdt
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JFlow Switches
Flow switches are primarily designed to monitor the air, steam or liquid flow and send signals to the pump for automatic ON / OFF switching with the rise and fall of water level; ideal for regulating water cooling equipment and water treatment or hydronic heating systems. Raptor Supplies offers a wide range of these liquid flow switches from brands like Bradley, Dwyer Instruments, Mcdonnell & Miller, Dayton, Johnson Controls, Gems Sensors and Taco. Gems Sensors flow switches uses 100-micron filtration technology and are less susceptible to clogging than other high-pressure inline flow switches. These units come equipped with one-piece magnetic composite piston which actuates the sealed reed switch when displaced by the pressure difference in fluid flow, thereby activating remote alarms or indicators. They are available in brass, polypropylene and stainless steel construction with a maximum pressure rating and flow rate of 1500 psi and 2 GPM, respectively. Taco industrial flow switches feature flow sensitivity adjustment mechanism for setting a wide adjustment range to start or stop an electronically operated device when flow / no-flow condition occurs. These low-flow switches come with a highly malleable EPDM seal providing anti-hardening, cracking and leakage properties and improving the performance in high-pressure applications such as chillers, boilers, heating systems and water systems. They are available in NEMA 1 and NEMA 4 rated enclosures providing protection against the ingress of foreign contaminants and are ideal for use with 1 - 8 inch (outer diameter) pipe sizes.
Working Mechanism
- The flow switch contains a sensor element positioned within the fluid's flow route.
- When fluid flows through the sensor element, it exerts a force or causes a pressure differential.
- The flow switch has an adjustable actuation threshold, which is the predetermined flow rate or pressure level that must be exceeded for the switch to activate.
- The force or pressure on the sensor element causes a mechanical or electrical response within the flow switch when the fluid flow reaches or exceeds the actuation threshold.
- When a flow switch is activated, it produces an output signal that can be used to initiate control functions, such as activating an alarm, opening or closing valves or commencing a shutdown sequence.
Frequently Asked Questions
How can I maintain the accuracy of my flow switch over time?
- Regularly clean the flow switch and inspect it for any signs of damage, corrosion or debris buildup.
- Verify that the flow switch is properly aligned within the flow path to ensure accurate measurements.
- Periodically calibrate the flow switch to verify its accuracy.
- Take into account the properties of the fluid being monitored, such as viscosity or density, as these factors can impact the accuracy of the flow switch.
- Be aware of the ambient conditions surrounding the flow switch. Consider protective enclosures for use in harsh environments.
- Maintain a record of the flow switch's calibration dates, maintenance activities and any observed issues.
What is the difference between a flow switch and a pressure switch?
A flow switch measures the flow rate of media flowing through a process line, whereas a pressure switch measures the pressure within a process line, pipe or vessel.
How do I select the right flow switch for my application?
Consider factors like the type of fluid, flow rate, operating conditions (temperature or pressure) and pipe size.
Do these flow switches require regular maintenance?
These flow switches require minimal maintenance. However, periodic inspection and cleaning are necessary to ensure proper functioning.
Can I use these flow switches for both liquids and gases?
Yes, these flow switches can be used to detect the flow of both liquids and gases.
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