Refrigeration Systems Water Flow On Off Switch Heat Pumps 24V Description JWFS series liquid flow paddle switch, suited for pipes of industrial plants: heating and air conditioning, refrigeration systems and heat pumps. Flow control of water and normal media. Application Control and monitor liquid flow of boilers, pumps, etc., of heating, cooling, and air conditioning equipment. Features ● Flow control of water and normal media ● Renovated SPDT micro switch ensures the