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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Flow Switches

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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.

MCDONNELL & MILLER -

Flow Switch 1 Inch Nema

Model	Item	Price (inc. VAT)
FS8-W	AH6EQK	£542.26

DAYTON -

Flow Protector Booster Pump 230 V

Model	Item	Price (inc. VAT)
1DGZ8	AA9HXM	£692.73

MCDONNELL & MILLER -

Switch Liquid Flow, 1 1/4 MNPT, 300 Psi

Model	Item	Price (inc. VAT)
FS7-4	AD9ECV	£1,030.41

DWYER INSTRUMENTS -

Liquid Flow Switch, 1/2 Inch MNPT, 1000 PSI Max. Pressure AC, SPST

Model	Item	Price (inc. VAT)
V10	AH2CXN	£185.29

WATTS -

Wet Location Flow Switch, 1 Inch Inlet, 250 Deg. F

Model	Item	Price (inc. VAT)
FS-204-W	CC7JFQ	£772.24

BRADLEY -

Flow Switch, 1-1/4 Inch NPT, Brass

Model	Item	Price (inc. VAT)
S19-319B4	CD4EBA	£1,067.64

DWYER INSTRUMENTS -

Thermal Dispersion Flow Switch

Model	Item	Price (inc. VAT)
TDS112	CP4LMX	£969.48

MCDONNELL & MILLER -

Air Flow Switch, Brass, SPDT 120/240 V

Model	Item	Price (inc. VAT)
AF-1	AD9EDA	£564.47

MCDONNELL & MILLER -

Flow Switch 1 Inch SPDT

Model	Item	Price (inc. VAT)
FS4-3	AH6EQJ	£475.55

DWYER INSTRUMENTS -

Level Switch Brass Body Spdt

Model	Item	Price (inc. VAT)
L6EPB-B-S-3-B	CP4LMY	£822.17

WATTS -

Flow Switch, 1 Inch NPT Size

Model	Item	Price (inc. VAT)
FS-200-W	CB2TZH	£698.54

SPEAKMAN -

Flow Switch Retro Kit

Model	Item	Price (inc. VAT)
RPG76-0043	CE2DRB	£1,823.56

MCDONNELL & MILLER -

Air Flow Switch

Model	Item	Price (inc. VAT)
AF1-S	CH9NXF	£976.55

DWYER INSTRUMENTS -

Mini Flow Switch Explosion Proof

Model	Item	Price (inc. VAT)
L4	CR3BDJ	£1,504.31

IFM -

Flow Switch, 3/4 NPT Connection Size, 26.4, 363 PSI Max. Pressure, 24 VDC, DC/PNP, 100mA

Model	Item	Price (inc. VAT)
SBN333	CR4LMQ	£661.36

JOHNSON CONTROLS -

Air Flow Switch, 2-1/8 Inch x 6-7/8 Inch Paddle Size, 16.0/8.0

Model	Item	Price (inc. VAT)
F262KDH-01C	CR6AJW	£353.78

SIEMENS -

Liquid Flow Switch, 1 MNPT Connection Size, 10, 160 psi Max. Pressure, 24V DC

Model	Item	Price (inc. VAT)
QVE1900U	CU2UTZ	£269.64

HONEYWELL -

Air Flow Switch

Model	Item	Price (inc. VAT)
4074ETH/U	BP2AFQ	£115.72	See Details

HONEYWELL -

Flow Switch, 1 Inch NPT Size

Model	Item	Price (inc. VAT)
FS4-3/U	BP3GTN	£280.87	See Details

HONEYWELL -

Flow Switch Kit, Single Pack

Model	Item	Price (inc. VAT)
50053268-018/U	BN9YWH	£216.11	See Details

BRADLEY -

Flow Switch, Stainless Steel

Model	Item	Price (inc. VAT)
S19-324SS	CD4ECM	£1,548.33	See Details

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Flow 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.