Flow Switch is used to supervise the liquid flow capacity through the pipe, such as water, ethylene, Water Flow Switches are used for pipe ... pipe,for instance,Water,Ethylene,Glycol,or any other liquid is non-corrosive for Brass and Phosphor Bronze ... screw(+)Material Shell:Extended steelConnection pipe: BrassInside element:Brass and phosphorus brasswater valve:Phosphorus brassRated current\voltage10(8 ...