Home » Brass Hall Water Flow Sensor 1/2 3/4 1 Inch Flowmeter And Liquid Sensor Switch

Brass Hall Water Flow Sensor 1/2 3/4 1 Inch Flowmeter And Liquid Sensor Switch

SKU: 1005005588692911-1/2"
Specification
€26,18
-37% €41,88 €26,18

This brass-bodied Hall Water Flow Sensor fits 1/2, 3/4, and 1 inch pipe connections and uses a Hall-effect sensor to deliver a pulse output proportional to water flow. Installed at the inlet of a water heater or similar device, it detects flow by the rotating impeller and feeds a pulse signal to the controller for precise regulation. The impeller is inlaid with stainless steel beads for wear resistance, and the sealing ring design provides a reliable, leak-free seal. The Hall element is encapsulated to resist water ingress and aging, making it suitable for continuous operation in demanding environments.

Benefits & Tips

  • Accurate flow sensing in water heaters, drinking fountains, water vending machines, and campus payment systems.
  • Wide interface options: G1/2, G3/4, and G1 threading for flexible installation.
  • Install vertically (within 5 degrees) and avoid severe impacts or chemical exposure to maximize longevity.

Product specifications

  • Interface size: G1/2, G3/4, G1
  • Working voltage range: DC 5–18V
  • Water pressure resistance: ≤1.75 MPa
  • Output pulse high level: > DC 4.7V (input DC 5V)
  • Output pulse duty cycle: 50% ± 10%
  • Insulation resistance: > 100 MΩ
  • Tightness: 1.7 MPa water pressure test for 1 minute, no leakage or deformation
  • Flow pulse characteristics:
    • 1/2" (11 * Q) Q = L/min + 3% → 660 pulses per liter
    • 3/4" (6.6 * Q) Q = L/min + 3% → 396 pulses per liter
    • 1" F = (8*Q - 4) ± 5% → 476 pulses per liter
  • Wiring: Red IN (positive), Yellow OUT (signal), Black GND (negative)
  • Precautions: severe impact and chemical erosion prohibited; vertical installation; inclination ≤ 5°; medium temperature ≤ 120°C

Warnings / Reminders

  • Do not expose the device to severe impacts or corrosive chemicals.
  • Ensure proper vertical mounting and limit tilt to 5 degrees.
  • Operate only with liquid temperatures up to 120°C and pressures within specified range.

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