Features:<br> This flow switch is an automatic element that controls flow in pipes, which can be used on water treatment system, central air-conditioning, water cooled chiller and relative industries.<br> Applicable fluid includes water, ethylene glycol,oil or other liquid not classified as hazardous or corrosive.<br> Flow control value is adjustable, repeat action point is stable.<br> Protection grade is IP54; the contactor life is up to 100,000 times.<br> When flow rate exceeds set value, fluid drives blade and micro switch, the SPDT contact can connect a circuit and disconnect other circuit.<br> It can not be used when fluid temperature drops below freezing point.<br> <br> Specifications:<br> Output Form: Micro switch SPDT output<br> Micro Switch: 15A(max.), 250VAC/DC<br> Model:HFS-15/ HFS-20/ HFS-25<br> Thread:R1/2 R3/4 R1<br> Fluid: Water, oil<br> Fluid Temperature: 1~100<br> Max. Pressure: 10bar<br> IP Grade: IP54<br> <br> Package Includes:<br> 1x Flow Switch & 1 x set Paddles