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Home > Products > Flow Measurement > Flow Switch > FSH-11 Series Professional Electronic Flow Switch

FSH-11 Series
Professional Electronic Flow Switch

New FSH-11 anti-dry professional electronic flow switch Widely applicable High interference ...
  • Factory Direct
    Chengdu production base, every unit calibrated before shipping
  • Fast Delivery
    Standard models in stock, custom builds on schedule
  • Technical Support
    Selection guidance / installation and commissioning / after-sales support
Brand: DOWESTONWarranty: 12 monthsOEM / customization supported

Product Overview

OVERVIEW

 New 

FSH-11 anti-dry professional electronic flow switch



Widely applicableHigh interference intensityTraffic detection on other occasions


FSH-11 professional electronic flow switch is usedIt is designed based on the principle of difference caused by temperature changes of the probe..strong anti-interference capability, stability high, can be used forpipes of different sizes, Liquids, gasesAll can be measured and other features.Low installation requirements, high pressure resistant,Resistant to slight corrosion,Suitable for variousPipe no-flow protection, leak alarm, dry-run pump alarm or control.





Features

FEATURES

FSH-11 professional electronic 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.



■  No moving parts, long life and low pressure loss

■  strong anti-interference capability, stability high

■ 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 


 Application Areas:

■ FSH-11 professional electronic flow switch is mainly used to monitor the flow rate of fluid 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.


Specifications

SPECIFICATIONS


Compatible MediaWater and water mixture, oil and oil mixture, air
Measuring RangeWater and water mixture: 1-150cm/s
Oil and oil mixture: 1-300cm/s
Air: 20-2000cm/s
Nominal DiameterDN20-200mm
Repeatability Error  ±2% of measured value
Display6-digit LED light on-site indication
Operating Temperature-20 to 85°C (standard; high temperature customizable)
Working Pressure20.8MPa max 
Material
Body: aluminum alloy, stainless steel
Probe: stainless steel, titanium alloy
Seal: O-ring: FKM 80 Shore A
Switch point adjustment Button
Signal Output PNP, NPN, relay, normally open + normally closed SPDT, IO-Link (configurable)
No-load current80mA
Response Time 1-13s  typical value 2S
Power Supply  24V DC, 220VAC
Electrical ConnectionM12 connector, directly attached with 2m cable
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, IP67
Weight  approx. 0.55kg





Downloads

DOWNLOADS
  • Brochures
  • User Manuals
  • Drawings and Software

Selection and Inquiry

INQUIRY

Cooling                                                    Lubrication                                                    Dispensing                                                     Cutting








Electronic flow switches are widely used to confirm the flow rate of liquids used in the above applications.


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Copyright © 2019-2026 Doweston. All rights reserved.
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