OEM IP65 Brass Liquid Flow Switch 24V 15A for HVAC Systems - 1-8 Inch Pipe Range, 120℃ Max Temperature
The KWFS Series Liquid Flow Paddle Switch provides reliable flow monitoring for industrial HVAC, refrigeration, and heat pump systems. Designed for pipes ranging from 1 to 8 inches, this IP65-rated brass switch offers economical flow proving with adjustable set points.
Control and monitor liquid flow in boilers, pumps, and other equipment for heating, cooling, and air conditioning systems.
- Flow control for water and standard media
- Reliable SPDT micro switch operation
- 15A (8A) 250VAC switch rating
- IP65 protection rating, Class I enclosure
- Adjustable set point calibration
- Stainless steel paddle construction
- Brass body material
- Maximum liquid temperature: 120℃
- Maximum working pressure: 13.5 Bar
| Parameter | Specification |
|---|---|
| Operation Type | On/Off, single-stage, micro switch |
| Output | SPDT 15(8A) 24/250VAC |
| Flow Rate Adjustment | Internal screw |
| Sensing Element | Paddle |
| Liquid Applications | Hot, chilled, well, pool and sea water, Brine or ethylene glycol |
| Material in Contact with Fluid | Brass |
| Paddle Material | Stainless steel |
| Liquid Temperature Range | -20℃ to 120℃ |
| Ambient Temperature Range | -40℃ to 85℃ |
| Ambient Humidity | 10-90% RH, non-condensing |
| Cable Entry | M18 Fitting |
| Housing Material | 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 restrictions, with arrow indicating flow direction. For vertical pipes, recalibrate range to balance paddle weight. When mounting downward, avoid slag accumulation and install in straight pipe sections at least 5 times the pipe diameter away from filters, valves, and other components.
Note: The flow switch is factory calibrated at minimum sensitivity. To increase the set value, turn the adjustment screw clockwise. The cut-out value must be ≥ the minimum flow necessary to ensure plant protection.
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