These factors determine the price of the faucet
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The outer surface of the faucet is generally chrome-plated. The plating of the product has specified process requirements, and after a certain period of salt spray test.No corrosion within the specified time limit. In the case of sufficient light, you can put the product in your hand and observe it at a straight distance. The surface of the faucet should be as bright as a mirror, without any oxidation spots, and scorch marks; and when viewed closely, there are no pores, no blistering, and no leakage plating. , The color is uniform; touch with no burrs or sand particles with your hand; press the surface of the faucet with your fingers, the fingerprints spread quickly, and it is not easy to attach scale.
The main parts of the faucet housing are generally made of brass material, after sand cleaning, turning, pickling and impregnation, pressure test, polishing and electroplating. The handles, decorative nuts, and switching valve of the triple bath faucet are basically made of brass, zinc alloy, ABS engineering plastic; wall covers are made of copper, stainless steel, plastic; connection nuts and eccentric joints, and brass for water outlet housings. A brass material is recommended. The quality of electroplating of products made of brass can be guaranteed, and the corrosion resistance time is longer. The higher the purity of brass, the better the plating quality, and the less likely the surface plating layer will corrode. Zinc alloy plating has poor plating quality and poor corrosion resistance, while the ABS process plastic is the cheapest and has poor plating quality. Identification can be made by weight estimation, minor surface scratches, and surface plating quality. Brass is heavier and harder, zinc is lighter and softer, and plastic is the lightest and softest. However, the components in direct contact with drinking water are not allowed to use zinc alloy materials in accordance with national standards.
The faucet has various styles and various functions. According to the purpose, it is generally used for washbasin, kitchen sink, bathtub, shower, bidet and so on. According to the function, there are general, induction, constant temperature and so on.
The spool is the heart of the faucet, and the ceramic spool is the best spool. Good quality products use ceramic valve cores, which have the characteristics of strong abrasion resistance and good sealing performance. Generally, they can be used for more than 300,000 to 500,000 times. Low-grade products mostly use copper and rubber seals, which have a short service life. But the price is low.
The faucet should pay attention to the gloss of the surface, and there is no burr, no stomata, no oxidation spots, etc. when you touch it. The main body of high-quality faucet is generally made of copper. After molding and polishing, the surface is plated with acid copper, then nickel and chrome (three-layer plating); ordinary products are generally only nickel-plated and chrome-plated (two-layer plating). The coatings of regular products have specific process requirements, and pass the neutral salt spray test, and there is no rust phenomenon within the specified time limit. Therefore, high-quality faucet products have a tight structure, a uniform coating, and a smooth and delicate color, which can remain bright as new after long-term use.
Turn the handle lightly to see if it is light and flexible and there is no obstruction. Check the parts of the faucet, especially the main parts are tightly assembled, and there should be no loose feeling.