Magnetic Water Flow Switch, NO, 100–300 ml/min

High-quality magnetic water flow switch equipped with a G1/4" quick-connect interface for easy installation. SUCH offers three low-startup flow rates: S0, S1, and S2, with the lowest reaching <100ml/min to meet precise micro-flow detection requirements. The flow switch supports normally open or normally closed output configurations, operates within a voltage range of 0–110VDC, with a maximum closing current of 0.5A and power consumption <5W. It is suitable for water purification equipment, water dispensers, water heaters, and small-scale fluid control systems.

Feature

• SUCH magnetic water flow switches offer three activation specifications—S0, S1, and S2—to meet diverse flow detection requirements.
• The flow switch supports a 0–110VDC voltage range with a break resistance up to 10¹²Ω, ensuring stable signals and low leakage risk. Switch configurations include normally open or normally closed options to accommodate different control logic requirements.
• Featuring a G1/4" quick-connect interface, it comes standard with a 50cm lead wire and XH-2 terminals for easy connection to control boards or relay systems.
• The water flow switch withstands 5 minutes of 1.05MPa hydrostatic pressure testing without leakage. The connection cable passes a 20N tensile strength test without damage and survives a 50cm drop test, ensuring stable and reliable performance during transportation and installation.

Dimension (unit: mm)

Basic Principle: When water flows through the pre-set channel, it pushes the magnet to move. Upon reaching the corresponding reed switch, the magnet induces a magnetic field, causing the reed switch to close. When water flow ceases, the magnet returns to its original position under spring force. The corresponding reed switch detects no magnetic field and opens.

Note:

• This water flow switch must be used with a relay!
• This product is for purified water only!