First of all, the key to the quality of the faucet is the spool. At present, the faucets on the market mainly have ceramic spool, ball valve core and rubber spool. Ceramic spool is a new generation of spool material, good sealing performance, stable physical properties, long service life, generally normal use of more than 10 years. The main body of the faucet is made of brass, bronze (or copper alloy) casting, of course, should be the best overall casting performance.
1. Look at the surface first. The main body of the faucet is cast from brass, bronze (or copper alloy), after grinding and polishing, and then chrome plating and other surface treatment. The regular product main body casting and surface treatment have strict process requirements, and after neutral salt spray test, should be free of rust in the corresponding period. Therefore, the selection of faucet, should pay attention to its surface critically, hand touch no burrs, observe no pores, corrosion marks, no oxidation spots, crystal bright, feel the thickness of the coating. The surface coating of the faucet is galvanized, titanium plated, spray paint and so on. The thick coating is better, and the surface of the coating can be observed with eyes. The thick coating of the imported faucet is not easy to fall off and oxidize. The electroplating layer should have a protective film, and the electroplating without protective film is easy to fade.
2. Gently turn the handle, whether it is light and flexible, there is no sense of obstruction. It is better to switch the faucet with seamless, easy and non-slip. The gap of poor quality is large, and the sense of obstruction is large.
3. Tap the main body of the faucet, whether the sound is dull, and carefully observe the faucet interface, whether it is copper body, if the sound is clear when tapping, it may be stainless steel and other materials, of course, it is worse. Look at the various parts of the faucet, especially whether the main parts are tightly assembled, the valve body and handle of the good faucet are all refined with brass, and the weight is heavy and dignified.
4. Check the various parts of the faucet and observe whether the assembly is tight or loose. Generally, the single handle mixer faucet is attached with the installation size diagram and the instruction manual when it is out. Before installation and use, the product packaging should be opened to check the certificate, so as to avoid the use of "three no" products. If it is imported goods, you should be more careful. In addition, check whether the accessories are complete, and the general accessories should be installed