Stainless Steel Hall-Effect Water Flow Sensor

Main Features:

This series of stainless steel Hall‑effect water flow sensors is a highly reliable, industrial‑grade flow‑measurement device. It features a forged 304 stainless steel housing with a standard external threaded connection, and incorporates a precision impeller and a Hall‑effect sensing element. When fluid flow drives the impeller to rotate, the sensor outputs a pulse signal proportional to the flow rate, enabling real-time monitoring and measurement of liquid flow. The stainless steel construction offers excellent resistance to high pressure, corrosion, and elevated temperatures, making it suitable for mildly corrosive liquids and high‑temperature, high‑pressure piping systems. It is widely used in industrial cooling systems, water‑treatment equipment, chemical processing units, commercial boilers, and other applications for flow monitoring, dry‑run protection, and water‑usage metering.

Enquiry

Category:

Water Flow & Water Level Sensors

Keyword: Stainless Steel Hall-Effect Water Flow Sensor

DETAILS DOWNLOAD

Key Features

304 stainless steel corrosion-resistant housing : Forged from food-grade/industrial-grade 304 stainless steel, it is resistant to acids and alkalis, corrosion‑resistant, and capable of withstanding high temperatures. It is suitable for mildly corrosive liquid media and boasts a long service life.
Standard external threaded interface : Standard external threaded connection, allowing direct integration into industrial piping; easy to install, with excellent sealing performance and resistance to leaks.
Stable Hall Effect Detection : The impeller’s rotation triggers the Hall-effect sensor to output a pulse signal, which is stable, highly resistant to interference, and unaffected by slight water turbidity.
High-pressure, high-flow design : The housing exhibits excellent pressure resistance, making it suitable for high-pressure fluid lines; it offers strong flow capacity and supports medium- to high-flow-rate measurement requirements.
Stable operation over a wide temperature range : Designed for high-temperature liquid environments, it can operate reliably in liquid media ranging from 0°C to +120°C, meeting the operational requirements of industrial equipment.
High-precision flow measurement : The pulse output signal exhibits high linearity, with a metering error of ≤±5%, enabling precise flow measurement and low-water-level alarms.
Low-power, wide-voltage adaptation : Supports a wide input voltage range of DC 3.3–5 V, with a typical operating current ≤15 mA, and is compatible with various industrial control devices.
Waterproof wire harnesses are easy to integrate. : Standard-equipped wiring harness and connectors with an IP65 waterproof rating, featuring a three-wire pulse output that can be directly connected to MCU or PLC control systems, suitable for humid and dusty operating conditions.
Environmental Compliance Support : Compliant with RoHS and REACH environmental standards, lead-free manufacturing, and meets global market regulatory requirements.

Typical application scenarios

Industrial control field : Liquid flow monitoring and metering for industrial cooling systems, cleaning equipment, water treatment equipment, and industrial pumps.
HVAC and Energy Sector : Water flow measurement and status monitoring for commercial boilers, heating systems, hot water circulation systems, and solar energy equipment.
Water treatment field : Flow monitoring and water metering for industrial water purification equipment and wastewater treatment systems.
Chemical and Environmental Protection Fields : Flow measurement and monitoring in pipelines carrying mildly corrosive liquids.
Home Appliances / Commercial Equipment Sector : Flow monitoring and dry‑burn protection for commercial water heaters and large‑capacity water dispensers.

Technical Specifications

Detection principle: Hall effect + impeller-type flow detection
Housing material: 304 stainless steel (food-grade option available)
Pipeline interface: Standard G1/2" male thread (customizable to G3/4", G1", and other specifications)
Operating voltage: DC 3.3–5 V (compatible with optional 5 V/12 V)
Operating current: ≤15 mA
Output signal: Pulse signal (NPN open-collector / push-pull output optional)
Flow measurement range: 1–35 L/min (customizable range available upon request)
Measurement accuracy: Typical error ≤ ±5%
Response time: <100 ms
Operating temperature: 0°C to +120°C (for liquid media)
Pressure rating: ≥2.0 MPa (higher pressure ratings available upon request)
Liquid Compatibility: Clean water, mildly corrosive liquids (non‑high‑viscosity / containing impurities)
Interface type: Standard waterproof connector, with red, yellow, and black leads included as standard.
Environmental Compliance: RoHS and REACH compliant; lead-free manufacturing process.

Customized Services

We offer end-to-end customized services and, based on your application scenarios and design requirements, can provide the following tailored solutions:

Customized pipe‑fitting specifications and thread standards to meet diverse industrial piping requirements.
Targeted optimization of flow range, pulse coefficient, and dielectric strength rating to meet the demands of high-pressure, high-flow applications.
Customization of output signal format, supply voltage, lead length, and connector type compatibility.
We offer mass production and rapid delivery services, along with comprehensive technical support, product selection solutions, and test reports, helping customers efficiently develop device‑level flow‑monitoring capabilities.

ENQUIRY

If you have any good suggestions and comments on our company, or want to consult our products, please fill in the form below, and we will contact you at the first time!