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Products > Flow > Flow Switches > Liquid Paddle Flow Switch
The body of the flowswitch is a standard pipe tee, BSP threaded, which contains a paddle type vane. Flow pushes the vane against magnetic forces: when flow exceeds a critical value the magnet actuates a reed switch. By coarse adjustment of the reed switch position, the output is changed between N0 & NC contacts: fine adjustment changes the flow sensitivity and switch rate. |  |
| Specification | |
| Pipe Sizes | 1/4" to 2" |
| Hysteresis | 0.7 L/min (depending on switch value) |
| Connection | BSP female |
| Limits | 25 bar max; 110°C max |
| Material | Brass or 316 stainless steel |
| Cable Length | 1.5 metres |
| Output | Reed contact, 1 Amp at 250V max selectable, NO/NC SPST |
| Protection | IP65 |
| Product Codes | |||
| Switch Flow Range | Max Flow Rate | Connection | Code Brass : SS |
| 2.5-3.0 L/min | 5 L/min | 1/4" | F59300105 : F59400105 |
| 3.0-3.5 L/min | 10 L/min | 3/8" | F59300106 : F59400106 |
| 4.5-5.0 L/min | 20 L/min | 1/2" | F59300107 : F59400107 |
| 5.0-6.0 L/min | 40 L/min | 3/4" | F59300108 : F59400108 |
| 9.5-11.5 L/min | 60 L/min | 1" | F59300116 : F59400116 |
| 13-16 L/min | 80 L/min | 1 1/4" | F59300117 : F59400117 |
| 30-35 L/min | 100 L/min | 1 1/2" | F59300118 : F59400118 |
| 42-53 L/min | 150 L/min | 2" | F59300119 : F59400119 |