Water drain pipe heater for low temperature cold room
As we know, for a cold room evaporator, we need to defrost regularly and keep the evaporator exchange heat well. And, the water from the defrost need to discharge to outside by drain pipe. Then, if you consider more, I am sure you can think out some parts of drain pipe is inside the cold room and maybe water will freeze to ice. It seems that we need to do something to prevent water freeze to ice. Because, the frozen ice will block the water pipe, then water can not discharge to outside and drain tray will full of ice. Don’t worry, what we suggest for prevent water make ice are:
1. For medium temperature cold room (temperature is over 0 degrees), it is okay no need to do something to prevent water frozen.
2. For low temperature, we should add a heater in the water pipe and do insulation. And, if water pipe is plastic, we advise use 40w/m heater. If the pipe is steel, the heater should be 50w/m.