1、 Working principle of ion exchanger:

The automatic water softener uses strong acidic cationic resin to replace calcium and magnesium ions in the raw water, and the water flowing out of the equipment is softened water with extremely low hardness. The chemical reaction is: 2RNa+Ca2+(Mg2)=R2Ca (Mg)+2Na+. When the resin adsorbs a certain amount of calcium and magnesium ions, regeneration is carried out by soaking the resin in saturated salt water to replace the hardness of calcium and magnesium ions in the resin, restore the softening exchange ability of the resin, and discharge the waste liquid. The chemical reaction is: R2Ga=2RNa+Ca2+. The entire regeneration process includes: backwashing - loosening the resin layer, salt absorption slow washing - exchange reaction, flushing (forward washing) - washing away the calcium and magnesium ions exchanged by the chemical reaction, and water injection - for the next regeneration.

2、 Process Introduction:

Soft water workflow: (sometimes called water production, the same below), backwashing, salt absorption (regeneration), slow flushing (replacement), and fast flushing. All processes of different softening water equipment are very similar, but there may be some additional processes due to differences in actual processes or control needs. Any softening water equipment based on sodium ion exchange is developed on the basis of these five processes (among which, the fully automatic softening water equipment will increase the saltwater re injection process).

Backwash: After working for a period of time, the equipment will intercept a lot of dirt brought by the raw water on the upper part of the resin. After removing these dirt, the ion exchange resin can be fully exposed, and the regeneration effect can be guaranteed. The backwashing process is when water is washed in from the bottom of the resin and out from the top, which can wash away the dirt intercepted at the top. This process usually takes about 5-15 minutes.

3、 Scope of application

1. Used for pre-treatment of boilers, thermal power plants, chemical, light industry, textile, pharmaceutical, biological, electronic, atomic energy, and pure water treatment,

2. In situations where industrial production requires hard water softening and deionized water preparation,

3. Used for decolorization and purification of food and drugs, recovery of precious metals and chemical raw materials, treatment of electroplating wastewater, etc.

4、 Equipment picture:

six、Common picture reference for ion exchange control valve：

3-ton softened water equipment (double tank single valve)	F71B1 automatic filter valve	4-ton automatic filter valve	4-ton automatic softening valve
10 ton automatic filter valve	10 ton fully automatic softening valve	18 ton fully automatic softening valve	20 ton fully automatic filter valve
30Ton fully automatic filter valve	2510FLECK fully automatic control valve	FLECK2900 Multi way Control Valve	FLECK2850