Thermal Flow Switch
Description:
Thermal Flow Switch is a contactless flow detection device that senses the flow of liquids or gases using a temperature-sensing element. It provides a switching signal to protect pumps, control systems, and processes, especially in low-flow or high-precision applications.
Specifications
- Type: Thermal
- Body Material: SS304 / SS316
- Process Connection: BSP / NPT threaded or Flanged
- Pipe Size: ½″ to 4″ (typical)
- Mounting: Inline horizontal or vertical
- Switch Output: SPDT / NO–NC
- Switch Rating: 5 A @ 230 VAC (relay output)
- Operating Pressure: Up to 16 bar
- Operating Temperature: –10 °C to +120 °C
- Power Supply: 24 V DC / 110–230 V AC (model dependent)
- Flow Sensitivity: Adjustable (factory calibrated or field adjustable)
Applications
- Pump and motor protection
- Cooling water systems
- HVAC and refrigeration circuits
- Chemical and process pipelines
- Lubrication and fuel lines



