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Brass faucet’s safety issues

2014-07-26 14:42:38 | 高齢社会
Faucet first appeared in the 16th century, bronze casting, the main role is to control the size of pipes, and water flow switch. By function can be divided into basin faucet, bath, shower, kitchen sink taps and electric faucet, as people's living standards improve, more and more fast electric faucet welcomed by consumers, is expected to become the leading revolutionary The new leading protagonist.
Now, in the face of this world faucet production materials are zinc alloy, copper, iron, stainless steel and other materials. After plating alloy is easily oxidized, shedding, not durable, alloy harmful substances, I strongly do not recommend iron alloy is more durable, and easy to rust, rust equally harmful. Oxidized plated brass faucet do not fall off, there is a very long time, as long as a well maintained surface will look like new, will not rust, particularly durable. Gravity casting brass faucets are good! But there are some companies in recent years, especially in copper prices soaring, they are in pursuit of higher profits, regardless of quality, cutting corners, faucets add excessive levels of lead, harm to human health. So we bought a brass faucet to find some of the best known brands, brass faucet I use now is very good, I bought a few years, until now my house basin faucet are like new, but also for our consumers , this basin faucet cheap and reasonable.
Brass faucet if it contains too much lead in the body will cause great harm. Lead poisoning affects the physical and mental obviously, is more obvious for children and pregnant women, due to the physiological characteristics of growth and development, lead poisoning of pregnant women will be serious premature birth, abortion. Lead poisoning affects infants and young children's growth and mental development, caused severe dementia. We only reduce the lead content in drinking water to ensure that people's intake of lead. As well as low-volume use of leaded brass faucets.
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Introduction of plate heat exchanger

2014-07-26 09:50:59 | 高齢社会
Plate heat exchanger is a heat exchanger, a metal plate for heat transfer between the fluid . This has the advantage of a major surface area exposed to the fluid heat exchanger is larger in the past , because the fluid distribution plate . This facilitates the change of temperature of heat transfer and significantly improve the speed . Plate heat exchangers are now common and very small brazed versions in the hot part of the millions of combination boilers use . For such a small physical size of the combination of high heat transfer efficiency improved domestic hot water boiler (DHW) traffic. Gasketed plate heat exchanger has a great influence in the domestic heating and hot water. Large commercial versions use gasketed plate heat exchanger , a smaller version of the often brazing. The concept behind the use of the heat exchanger pipe or other storage container by a cooling fluid and another fluid between the heat transfer to heat or . In most cases , the exchange of one another includes a fluid chamber containing fluid through the serpentine tubes . The tube wall is usually made of metal or other materials having high thermal conductivity to facilitate the exchange , the larger chamber of the housing is made of plastic or coated with a thermally insulated to prevent heat escaping from the heat exchanger.
1 , plate heat exchanger is made of synthetic polymer made ​​using a special process , with high water vapor permeability , air tightness , tear resistance, aging resistance and other characteristics,
2 , plate heat exchanger products energy savings reached the international advanced level , long life and good conductivity, temperature , suitable for indoor and outdoor temperature difference is small wet areas
3 , plate heat exchanger can be configured according to the user's requirements heating , cooling, humidification, purification, muffler and other segments of different functions .
4 , usually stainless steel plate heat exchanger (sus 304, sus316), high temperature titanium alloy in a vacuum brazed brazed or synthesis using modular seals bolt lock .
5 , forming a compact plate heat exchanger, it can withstand continuous operation under high temperature and high pressure conditions.
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