After the electric water heater is purchased, as the service life continues to increase, the probability of accidents such as leakage and bursting of the inner tank also increases. Therefore, when choosing an electric water heater, you should pay special attention to the following two aspects.
A good liner must have strong impact resistance
From the constant leakage and explosion accidents of the liner, it is not difficult to find that the liner is a core component related to the service life of the electric water heater. Various brands The gap between them is still huge. Experts remind consumers: When purchasing an electric water heater, you must pay attention to the "impact resistance" indicator of the inner tank. The water quality in our country is very complex, and the water pressure fluctuates greatly. The impact resistance of the inner tank is directly related to the product quality and service life. Therefore, when purchasing, be sure to choose products with good impact resistance. As for the impact resistance of the inner tank, Chinese companies can already achieve 160,000 times, which is higher than the standards of the United States and Europe (the American standard is 100,000 times).
Don’t be confused by the various names
At present, there are only two types of liner for electric water heaters, one is a stainless steel liner and the other is an enamel liner. The so-called Jingui liner, titanium liner, quartz enamel, sapphire, etc. are just different names.
The advantage of the stainless steel liner is that it can withstand high temperatures, resist corrosion, has stable performance, and is not easy to rust. However, it is difficult to weld and easily leaves welds. The welds can easily rust over time. causing water leakage. In order to reduce costs, some companies use very thin stainless steel, which reduces the pressure on the liner and affects its service life.
At present, most companies on the market use enamel liners. The enamel inner tank has a layer of enamel on the surface and will not rust. However, the low-grade carbon steel plate used in the general enamel liner only has two layers of liner, which has many problems such as fish scale explosion, acid corrosion and rapid dissolution, and its service life is short. So you should also pay attention when choosing an enamel liner. The quality of the enamel liner mainly depends on the processing technology. As for the so-called different formulas of enamel powder, it is just a mystery. As we all know, as long as a patent is applied for, the formula is public. Diamond three-layer bladder is one of the better ones currently on the market. It is made of special ultra-fine powder for enamel and sintered at a high temperature of 890 degrees. Finally, a dense three-layer bladder is formed, including an enamel layer, an adhesion layer, and a decarburized steel plate layer. The anti-solvent, anti-explosion and anti-acid properties are greatly improved, thus extending the service life of the product.