SEA YF-DN50-S-3M Stainless Steel Water Flow Sensor G2 inch 10–200 L/min 3.5–24V
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The SEA YF-DN50-S-3M Stainless Steel Water Flow Sensor is a high-precision turbine flowmeter designed for measuring large-volume water flow in industrial and commercial environments. Built using durable 304 stainless steel, it features a G2 inch DN50 threaded interface for high-flow pipelines and offers excellent resistance to corrosion, wear, and harsh fluid systems.
This model includes a 3-meter pre-wired cable for extended-distance connectivity, making it ideal for embedded control panels or remote automation systems. It supports flow rates from 10 to 200 liters per minute and outputs a digital NPN pulse signal, allowing real-time flow monitoring via microcontrollers, PLCs, or IoT devices.
Operating from DC 3.5 to 24 volts, the sensor delivers 12 pulses per liter, using a K factor of 0.2 times Q, where Q is flow in liters per minute. The unit is built to handle temperatures up to 85 Celsius and pressures up to 1.75 MPa, ensuring performance under tough industrial conditions.
Applications
- Industrial liquid flow control systems
- Water purification and filtration equipment
- Process automation and dosing systems
- Agricultural irrigation networks
- Smart agriculture and irrigation
Features
- G2 inch DN50 BSP threaded stainless steel body
- Wide flow range from 10 to 200 liters per minute
- Operates from DC 3.5 to 24 volts
- Hall-effect NPN pulse output
- 12 pulses per liter output resolution
- Frequency factor 0.2 multiplied by flow rate
Comparison Table: Brass vs. Stainless Steel Water Flow Sensors
| Feature | Brass | Stainless Steel |
|---|---|---|
| Corrosion Resistance | Good (for clean/fresh water) | Excellent (suitable for harsh fluids) |
| Durability | Moderate | High |
| Cost | Lower (budget-friendly) | Higher (premium-grade) |
| Weight | Lighter | Heavier |
| Application | Domestic, general-purpose use | Industrial, marine, high-pressure |
| Lifespan | Moderate | Long-lasting |
Note: Choose brass for household or standard water systems. Opt for stainless steel in corrosive, high-pressure, or industrial environments.
Specifications
| Parameter | Specification |
|---|---|
| Model Number | YF-DN50-S-3M |
| Output Signal | NPN Pulse Output |
| Material | 304 Stainless Steel |
| Pipe Size | G2 inch DN50 BSP |
| Flow Rate Range | 10 to 200 liters per minute |
| Operating Voltage | DC 3.5 to 24V |
| Working Current | Less than 15 milliamp |
| Frequency Coefficient | 0.2 times Q where Q is L per minute |
| Flow Pulse | 12 pulses per liter |
| Temperature Range | Minus 20 to 85 Celsius |
| Maximum Pressure | Up to 1.75 megapascal |
| Output Pulse High Level | Above DC 4.7V at 5V input |
| Output Pulse Low Level | Below DC 0.5V at 5V input |
| Cable and Connector | SM-3P 3 meter PVC Cable |
| Net Weight | 725 grams |
Package Include
1X SEA YF-DN50-S-3M Stainless Steel Water Flow Sensor G2 inch 10–200 L/min 3.5–24V