KWFS Fire Sprinkler Flow Switch with SPDT Micro Switch, 20 Bar Pressure, 120℃ Temperature Rating
The KWFS fire sprinkler flow switch monitors liquid flow in pipelines and provides reliable switching signals via a micro switch. This ensures flow rates meet system requirements for fire protection and safety applications.
Designed for controlling and monitoring liquid flow in boilers, pumps, and heating, cooling, and air conditioning equipment. Ideal for fire sprinkler systems and industrial fluid control applications.
- Flow control for water and standard media
- Reliable SPDT micro switch with 15(8A) 250VAC rating
- IP65 rated enclosure with Class I protection
- Adjustable set point for precise flow monitoring
- Stainless steel paddle for durability
- Brass construction for corrosion resistance
- Maximum liquid temperature: 120℃
- Maximum working pressure: 20 Bar
| Parameter | Specification |
|---|---|
| Operation Type | On/Off, single-stage, micro switch |
| Output | SPDT 15(8A) 24/250VAC |
| Flow Rate Setting | Internal screw adjustment |
| Sensing Element | Paddle |
| Liquid Applications | Hot, chilled, well, pool and sea water, brine or ethylene glycol |
| Material (Fluid Contact) | Brass |
| Paddle Material | Stainless Steel |
| Liquid Temperature | -20℃ to 120℃ |
| Ambient Temperature | -40℃ to 85℃ |
| Ambient Humidity | 10-90% RH, non-condensing |
| Cable Entry | M18 Fitting |
| Housing | Fire Resistance ABS or PC |
| Protection Rating | IP65 |
| Color | White |
| Weight | 1.0 Kg |
| Model | Connection |
|---|---|
| KWFS-1 | 1/2" -14 NPT |
| KWFS-2 | 3/4" -14 NPT |
| KWFS-3 | 1" -11½ NPT |
The flow switch can be installed in any position away from elbows or throttlings, with arrow aligned to flow direction. For vertical pipe installation, recalibrate range to balance paddle weight. When downward mounted, ensure installation in straight pipe sections at least 5 times the pipe diameter upstream and downstream from filters, valves, and other components.
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