I. Raw materials
First of all, we can see from the raw materials of ultra-pure water equipment that the hanger is made of carbon steel and stainless steel. In order to save costs, many manufacturers use other materials, even the thickness is not enough, which greatly reduces the service life of equipment. Although this kind of equipment is very cheap, remember not to be greedy and cheap, which will lead to many after-sales problems in the later period, just adding to the troubles.
Two. Design structure
From the structural point of view, many devices can't see any difference, but the design structure of some products is not very reasonable and needs professional understanding to identify them.
Three. electronic control system
The electric control system is a very important part of ultra-pure water equipment. The electric control system designed by manufacturers with insufficient strength is not perfect enough, and problems often occur. The electric control system is not perfect, and there will be sudden movement, short circuit and equipment burning out in the later stage.