1.5 Inch Water Flow Sensor YF - DN40

💧 1.5 Inch Water Flow Sensor – YF-DN40
🧩 Overview
Industrial-grade water flow sensor for large pipelines
Designed for 1.5 inch (DN40) pipe systems
Provides real-time flow measurement using pulse output
Suitable for high-flow applications
⚙️ Working Principle
Water flows through an internal turbine rotor
Rotor spins based on flow speed
Hall-effect sensor detects rotation
Outputs pulse signals proportional to flow rate
Microcontroller calculates flow (L/min or m³/h)
📊 Key Specifications
🔹 Pipe Size: 1.5 inch (DN40)
🔹 Working Voltage: 5–18V DC
🔹 Output Type: Digital pulse (Hall effect)
🔹 Flow Range: 10 – 200 L/min
🔹 Working Pressure: ≤ 1.75 MPa
🔹 Temperature Range: 0°C – 80°C
🔹 Accuracy: ±3% to ±5%
🔹 Material: Plastic/nylon body with internal rotor
🧱 Module Components
Large flow turbine rotor
Hall-effect sensor
Durable housing (industrial grade)
3-wire interface:
🔴 Red → VCC
⚫ Black → GND
🟡 Yellow → Pulse Signal
🔄 Features
Handles high water flow rates
Stable and reliable pulse output
Easy integration with Arduino / ESP32 / PLC systems
Suitable for industrial and large-scale systems
🛠️ Applications
Industrial water systems 🏭
Agricultural irrigation 🚜🌱
Water supply monitoring 💧
Cooling systems & pumps
Smart water management systems
⚠️ Usage Tips
Install with correct flow direction (arrow mark)
Ensure straight pipe section before and after sensor
Avoid air bubbles and debris
Use filter/strainer for long life
Do not run sensor without water (dry run)
✅ Advantages
Supports high flow range (10–200 L/min)
Easy digital output for microcontrollers
Durable for heavy-duty applications
Low maintenance
⚠️ Limitations
Not highly accurate for very low flow rates
Sensitive to turbulence and vibration
Requires calibration for precise measurements
🔍 Summary
Best suited for large pipe systems (DN40)
Provides pulse-based flow measurement
Ideal for industrial, agricultural, and high-flow monitoring applications