Lefoo Flow Switch
The FS Series liquid flow switch is designed to manage flow variations in liquids such as water, glycol, or other non-hazardous liquids in pipelines. When the liquid flow rate exceeds or falls below a set point, the single-pole, double-throw (SPDT) contacts close one circuit while simultaneously opening the other. The FS Series liquid flow switch is typically used for chain reaction or “no-flow” protection.
Description
- Features
- Technical Parameters
Key Features:
- Maximum liquid pressure: 1MPa, can be used for various purposes.
- Has 3 stainless steel paddles and can be used for pipes with diameters from 25 to 75 mm.
- The number of blades can be changed and the length of the blades can be adjusted according to customer requirements.
- FS Series Liquid Flow Switches with additional 6-inch paddle for pipes from 100 to 150 mm diameter.
- Adjustable flow rate setting, users can set the flow rate value according to their needs.
- The FS52 flow switch features a fully enclosed cover. This structure effectively protects electrical equipment from water and dust corrosion. (Minor condensation is permitted.) Because the FS52 flow switch utilizes an integral, fully enclosed design, even a small amount of condensation will not cause leakage. For user convenience, the FS52 flow switch provides ample wiring space.
- FS52 can also provide stainless steel connections, suitable for media such as ammonia.




