Water Flow Sensor - YF-B6 Flowmeter G3/4 1-30L/min 5-15V Brass
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YF‑B6 WATER FLOW SENSOR INFO
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MODEL: YF‑B6 Flowmeter
THREAD SIZE: G3/4″ (standard plumbing)
FLOW RANGE: 1–30 L/min
OPERATING VOLTAGE: 5–15 V DC
OUTPUT: Pulse signal (frequency proportional to flow)
BODY MATERIAL: Brass (durable, corrosion‑resistant)
SEALING: Rubber / EPDM or similar gasket
WORKING PRESSURE: Up to ~2–3 MPa (varies by version)
TEMPERATURE RANGE: ~0–80°C (typical)
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🔹 WHAT IT DOES:
Measures **water flow rate** using a mechanical rotor
inside the brass body. As water passes, the rotor spins.
Each rotation generates a pulse via a hall effect sensor.
Pulse frequency ∝ flow rate.
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📊 HOW IT WORKS:
• Water enters inlet → pushes rotor
• Rotor magnets pass hall sensor
• Sensor outputs digital pulses
• Controller counts pulses → calculates flow
Pulse Frequency → Flow:
Flow (L/min) = K × Frequency (Hz)
(K = calibration constant, usually ~7.5)
Example: 450 Hz → ~60 L/min (illustrative)
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🔌 ELECTRICAL CONNECTION:
Red → VCC (5–15 V DC)
Black → GND
Yellow/White → Pulse Output (digital)
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📈 CHARACTERISTICS:
• **Linear response**: More flow = higher pulse rate
• **Brass body**: Strong, long‑lasting
• **Compact**: Easy inline installation
• **Wide range**: 1–30 L/min suitable for many pumps
• **Low power**: Works with microcontrollers
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🧰 KEY SPECIFICATIONS:
Flow Range: 1–30 L/min
Thread: G3/4″ male
Voltage: 5–15 V DC
Output Type: Digital pulse
Body Material: Brass
Maximum Pressure: ~2–3 MPa
Operating Temp: ~0–80°C
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⚙️ TYPICAL APPLICATIONS:
• Water dispensers
• Irrigation systems
• Pool/Spa flow monitoring
• Pump control & feedback
• DIY fluid monitoring
• Aquaculture & hydroponics
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📌 DESIGN & INSTALLATION NOTES:
• Install sensor **in horizontal pipe** with arrow direction
• Prevent air bubbles — reduce signal noise
• Use proper sealing tape on threaded joints
• Place away from strong electrical noise sources
• Use interrupt/timer on microcontroller for accurate pulse count
