閥門的歷史
閥門是隨著流體管路的產生而產生的。人類使用閥門已經有近4000年的歷史了。中國古代從鹽井中吸鹵水制鹽時，就曾在竹制管路中使用
過木塞閥。公元前1800年，古埃及人為了防止尼羅河泛濫而修建大規模水利時，也曾采用過類似的木制旋塞來控制水流的分配。這些都
是閥門的雛形。工業用閥門的大量應用，是從萬特發明蒸汽機以后才開始的。二十世紀初出現了鑄鐵，鑄鋼，鍛鋼，不銹鋼，鉻鉬鋼，黃
銅等各種材質的閥門。應用干各個行業，各種工況。國內ZUI早引進國外閥門生產技術的公司不多，后引進國外生產技術，使得國內閥門生
產技術的突破，質量的提高，壽命的加長。

History of Valves

The valve is produced with the flow line. Humans have been using valves for nearly 4,000 years. In ancient China, when brine was siphoned from salt Wells to make salt, it was used in bamboo pipes

Pass the plug valve. Similar wooden cocks were used by the ancient Egyptians in 1800 BC to control the distribution of water when they built a massive water conservancy to keep the Nile from flooding. All of these

It's the prototype of the valve. A large number of industrial valve applications, from the invention of the steam engine Vante only began. In the early 20th century, cast iron, cast steel, forged steel, stainless steel, chrome-molybdenum steel, yellow

Copper and other materials of the valve. Applied to various industries, various working conditions. The earliest introduction of foreign valve production technology companies are not many, after the introduction of foreign production technology, so that the domestic valve

The breakthrough of production technology, the improvement of quality, the extension of life.