Mechanical Water Flow Switch, G1/2'', 2-25 L/min

Good price mechanical water flow switch for sale. Standard G1/2'' interface design ensures easy installation and direct connection to common water systems. The operating flow range is 2-25 L/min, with rapid switching signal activation at ≥2-2.5 L/min start-up flow for precise water flow detection. Widely used in water heaters, water purification equipment, circulating water systems, and industrial automation devices.

Feature

• The mechanical water flow switch responds rapidly under low flow conditions, activating at approximately 2–2.5 L/min, enabling precise detection of water flow changes within pipelines.
• Featuring a mechanical structural design without complex electronic components, the switch boasts a stable and durable internal construction suitable for long-term continuous operation.
• With a maximum switching voltage of 110 VDC, maximum load power of 10 W, and maximum load current of 1 A, it meets the requirements of various automatic control systems.
• The SUCH flow switch withstands water pressures up to 2.0MPa, with a start-up pressure of ≤0.1MPa, ensuring stable operation under varying water pressure conditions.

Dimension (unit: mm)

Wiring Diagram

Precautions

• The flow switch must be used with a relay when operating loads such as water pumps or contactors that draw slightly higher currents.
• The flow switch should be installed away from areas with strong vibrations, magnetic fields, or shaking to prevent false triggering. To avoid particles or debris entering the flow switch, a filter screen must be installed at the inlet. When magnetic materials approach the flow switch, its characteristics may change.
• The flow switch must be used with a relay because the reed switch has a low power rating (typically 10W) and is prone to burnout. The relay's maximum power rating is 3W; exceeding this rating may cause the switch to remain in a normally open or normally closed state.