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FSH-13 series compact flow switch
Widely applicable to pipelinesSwitch,CloggedCut-off alarm, pump idling alarmWait for many occasions
FSH-13 series of compact flow switches are made ofIt is designed based on the principle of difference caused by temperature changes of the probe.. can be used forpipes of different sizes, Measurable low flow rate, Liquids, gasesall measurable, and other features.Low installation requirements, high pressure resistant,Resistant to slight corrosion,Suitable for variousPipeline interruption protection, leakage alarm, pump idling alarm or control, compact sizeThe product comes with an on-site display for easy observation.
FSH-13 series compact flow switchIs to useProbeTemperature changes produceDifferenceDesigned based on the principle. A heating sensor and two thermal sensors are built into the probe and are in contact with the medium. When the thermal flow switch is working, the heating sensor emits constant heat. When there is no medium flowing in the pipe, the heat received by the thermal sensor is a constant value. When there is medium flowing,Feeling hotThe heat received by the sensor will change with the flow rate of the medium. The thermal sensor converts the temperature difference signal into an electrical signal.Flow rateWhen reaching a certain set point, the thermal flow switch outputs a switching signal.
■ With on-site display for easy observation
■ No moving parts, long life and low pressure loss
■ switches at very low flow rates with wide adaptability
■ Simple compact structure, high pressure resistance
■ Tubes available for pipes of different nominal diameters
■ Probe material: stainless steel, titanium alloy
| Compatible Media | Water and water mixture, oil and oil mixture, air |
| Measuring Range | Water and water mixture: 1-150cm/s |
| Oil and oil mixture: 1-300cm/s | |
| Air: 20-2000cm/s | |
| Nominal Diameter | DN20-200mm |
| Repeatability Error | ±2% of measured value |
| Display | High brightness LED digital display |
| Operating Temperature | -20 to 85°C (standard; high temperature customizable) |
| Working Pressure | 10MPa max |
| Material | Main body: stainless steel, PBT |
| Probe: stainless steel, titanium alloy | |
| Setting method | Potentiometer setting |
| Signal Output | 4-20mA, PNP, NPN, relay, normally open + normally closed SPDT |
| No-load current | 80mA |
| Response Time | 1-13s typical value 2S |
| Power Supply | 24V DC |
| Electrical Connection | M12 connector |
| Connection Type | Internal and external thread installation (NPT, G thread, M thread) |
| Electrical Protection | Reverse polarity, short-circuit and overload protection |
| Ambient Temperature | -20 to +80°C |
| Protection Rating | IP65 |
| Explosion-proof Marking | Flameproof ExdIICT4 |
| Weight | Approx. 0.4 kg |
Application Areas:
■ The FSH-13 series of compact flow switches are mainly used to monitor the flow rate of fluids in pipelines, monitor flow interruptions or prevent idling of pumps. Thermal flow switches are widely used in various industries where it is necessary to monitor the flow rate of fluids in pipelines or protect important equipment when liquid flow fails, such as protecting water pumps, monitoring lubricating oil circuits, refrigeration and heating circuits, monitoring pipeline ruptures, monitoring leaks, etc.
DOWESTON · 13 years of measurement excellence · global process instrumentation brand
DowestonPrecision measurement & control instrument manufacturer
Service Hotline+1 (314) 325-4420
E-mailinfo@doweston.com
Address617 Cepi Drive, Chesterfield, MO 63005, USA
Tell us about your measurement task and we will help with product selection and technical questions.info@doweston.com
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