What is the electric water heater good?
The standard configuration of a water heater is, first of all, a firm, durable, water tight tank. Pick the refrigerator depends on the compressor, pick the TV to see the picture tube, then pick the water heater, the most important thing is to look at its inner liner.The tank shall be insulated, resistant to pressure, rustproof, corrosion resistant and impermeable. Once the liner is damaged, the heater is scrapped. Therefore, the service life of the water heater depends on the service life of the tank, and the life of the tank depends mainly on the material and manufacturing process.From the material, the current market is mainly sold stainless steel bladder and enamel liner two.
Theoretically, the 8 stainless steel bladder is the best,But taking into account the stainless steel welding process and material problems (stainless steel material is very expensive, basically no manufacturers will use)Cylindrical enamel liner (round liner is relatively pressure), who will be better.(whether it is a golden silicon liner, a sapphire inner liner or a composite three - layer liner, in fact, an enamel liner)
Stainless steel liner has good material and is not easy to rust. But the hidden trouble of stainless steel liner has not been solved very well. The water heater in the process of using the weld after repeated rechanlengsu, chromium ions in stainless steel will be corrosion of chlorine ion in tap water, after a long time may be in the welding Water Leakage, which is stainless steel water heater manufacturers face the most common quality problem. Enamel liner to the steel plate coated with enamel protective layer through high temperature sintering completely covered the steel plate and weld, the maximum to avoid the corrosion of the weld was Water Leakage, is a tank at home and abroad electric water heater manufacturers the most widely used.In addition to the difference between the external liner material manufacturing process also have the difference, excellent technology often only in the liner on the left of a weld, greatly reduces the possibility of Water Leakage; and the general process of liner usually three welds, increased risk.
