The thermal flow switch is designed for real-time flow monitoring in pipelines transporting water, gases, and oils, preventing equipment damage caused by "dry running." Utilizing advanced thermal sensor technology, it detects flow rate changes and sends instant switch signals when the preset threshold is reached. Featuring high sensitivity and reliability, this switch is ideal for industrial applications such as HVAC systems, cooling circuits, chemical processing, and hydraulic systems. With no moving parts, it ensures long service life, minimal maintenance, and accurate flow detection, making it a superior alternative to mechanical flow switches.
Product Characteristics
Minimal Pressure Loss: Ensures efficient flow monitoring with almost no impact on system pressure.
Multiple Material Options: Available in various materials to suit different media and environments.
Complete Isolation: The mechanical and electronic components are fully isolated, making it ideal for small flow rate applications with cost-effective performance.
High-Precision Settings: Features an on/off adjustable scale, eliminating the need for on-site user adjustments.
LED Status Display: Provides clear visual indication of switching status with dual switching outputs for enhanced functionality.
Instrument Parameters
Precision: ±5% of total volume
Hysteresis: Minimum 0.5L/min, depending on the switching point
Switch Setting Scale:
Calibrated in a horizontal installation using water at 20°C
Switching values may vary slightly due to mounting position, medium, and temperature
LED Display:
DC-powered models feature an LED display for switching status
AC-powered models do not include an LED display
Wiring Method: Connectors, Hirschmann connectors, direct outlet
Output: Reed switch, capacity 24VDC / 250VAC, 100mA
Material:
Seal: Silicone
Piston: POM plastic
Spring: Stainless steel
Pressure Resistance:
50 bar (aluminum type)
100 bar (stainless steel type)
Average Pressure Loss: 0.3 bar at 25L/min
Medium Temperature: Maximum 90°C
Protection Class: IP65
Note: Mounting position affects switching values
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