Excessive lead in the faucet? 4 steps to teach you to choose a good faucet
Posted on November 01 2022
Can it be used for a long time?
The faucet is turned on and off every day, and we can't remember how many times it is turned on and off in a day, so the first question to consider when purchasing is whether it can be used for a long time. When switching, the active part of the faucet is in the valve core, so if you want it to last longer, it depends on the quality of the valve core.
The quality of the valve core can be judged by whether it can withstand a long-term non-drip test, which is a life test for the valve core. It is clearly stipulated in the national faucet testing standards that the non-drip test of the switch requires no less than 200,000 switching times. In addition to judging the quality from this test index, it can also be evaluated from the sensory point of view. Turn the handle up, down, left, and right, and the feeling of lightness and no obstruction means that the quality is good.
At present, ceramic valve core is the most suitable valve core material for home use, and it is also widely used by many faucet manufacturers. It is the most cost-effective, because it is easy to obtain materials, and at the same time, it can adapt to wear-resistant and hot and cold temperatures for a long time. Although impurities in the water may cause damage to the ceramic valve core, the quality of tap water used by residents is relatively good, and this factor can basically be ignored.
Will it pollute the water?
In the past, faucets were frequently exposed to excessive lead content, which led to lead poisoning of residents, which made everyone panic. Therefore, when purchasing faucets, in addition to quality, I will also consider whether it will pollute the water quality.
To see whether the faucet will pollute the water quality, it depends on the material of the main part that is in contact with the tap water for a long time.
The main materials of the faucet are cast iron, plastic, zinc alloy, copper alloy and stainless steel.
Cast iron is easy to rust, plastic is easy to age, zinc alloy has poor stability and is easy to burst, resulting in short-term use, so it is not recommended to buy faucets of these three materials.
At present, copper alloy is the most suitable main material for home use, because copper ions have a certain bactericidal effect and prevent bacteria from producing antibodies, so the inner wall of copper faucet will not breed bacteria, which is incomparable with other materials. This is why many brands now choose copper materials to make faucets.
Brass in copper alloy is a combination of copper and zinc. It has good mechanical properties, good wear resistance and corrosion resistance, so it has become the first choice for faucet materials. Brass is also divided into many types because of the copper content. At present, most of the faucets use H59 copper, which is brass with a copper content of 57% to 61%. In fact, some international bathroom brands even use H62 copper. Production of faucets, because H62 copper has a higher copper content and better corrosion resistance than H59 copper.
In addition to copper and zinc, brass also contains a small amount (less than 0.5%) of lead. When the faucet is exposed to lead poisoning, everyone thinks it is caused by the lead in the brass itself, but all those who talk about poisoning apart from the dose are hooligans. , the current national standard for lead content in faucets, as long as the precipitation of lead does not exceed 5μg/L, it will not threaten human health. In fact, standard H59 copper does not need to worry about this problem. Most of the faucets on the market that are detected with excessive lead precipitation are not standard brass, but are shoddy filled with zinc alloy, or have too many impurities infiltrated, or are roughly processed from recycled scrap copper. The faucets produced in this way have quality problems.
To completely eliminate lead exposure, there is another option - stainless steel faucets. Now many brands have begun to develop stainless steel faucets, because it can be completely lead-free, but due to the complex process and no antibacterial advantages of copper, it is not popular at present.
Material selection: Brass is the most suitable faucet material, which has antibacterial effect. Among them, H59 copper is the most suitable, and the lead content is also qualified. H62 copper and lead content are less and more resistant to corrosion; stainless steel can be lead-free, and 304 food is used. Made of high-grade stainless steel, it can be in contact with drinking water for a long time.
Pollution judgment: the lead precipitation in the lead content test does not exceed 5μg/L, which is qualified.
Sensory evaluation: Brass can be identified by weight estimation. Brass is heavier and harder, while other alternative materials are lighter and softer. Sensory comparison of stainless steel with sinks made of food-grade stainless steel can be performed.
Is it inconvenient to use?
The faucet side is inconvenient to use, which really affects the quality of life. In the past, the faucet only supplied cold water. Every winter, washing dishes and vegetables became a torturous task. Later, everyone chose the hot and cold mode. Now, we can have more choices to provide more life. convenience.
YOROOW Sanitary Ware has been deeply engaged in the field of faucets for more than 12 years, and has its own R&D team and production factory, which can provide customers with OEM&ODM services. As one of the most professional faucet manufacturers in China, yoroow always insists on serving all customers with the most professional knowledge and attitude, and has also received a lot of praise from customers. If you have any needs for the faucet, please Contact Us, we will give you a reply within 24 hours and do our best to help you solve the problem.