Every day contact with the valve, do you know the origin of the valve, the history? Broadly speaking, during the Warring Kingdoms period thousands of years ago, ancient people used valves for manufacturing operations, is not that long ago! As a practitioner in the modern pump industry, a brief overview of the origin and history of the valve is also of great importance and very interesting, after reading, there will be more pride and pride as a valve pump manufacturer, but also will be more responsibility and responsibility for the future development of the industry.

Speaking of valves, I believe many people are no stranger to, yes, the use of valves touches every day of our lives, when we open a faucet to drink water or open a fire hydrant to irrigate farmland, we interact with valves, a tight weave of pipes, the back end has various valves.

The development of valves is closely related to the development of industrial production processes. In ancient times, to regulate the flow of water in a river or stream, people used large stones or tree trunks to stop the flow of water or change the direction of water flow. As early as the end of the Warring Kingdoms period of Li Bing, Taishui, Qing Shu County, had already dug salt wells on the Chengdu Plain. In the extraction of halogen from thin bamboo as a halogenated drum, in the casing of the halogenated drum, at the bottom of the drum as an opening and closing valve, the drum can be sucked out of the halogen, on a large wooden frame above the well, wheels and disks are used to extract the halogenated water, the bamboo drum is empty at one end, fitted with a wooden plunger valve to prevent leakage, the sub is placed in the well to get the halogen to produce salt - ancient people are not very talented!

Egyptian and Greek civilizations invented several original types of valves for crop irrigation. However, it is generally recognized that the ancient Romans developed quite sophisticated water systems for crop irrigation, using tap and plunger valves and using check valves to prevent backflow of water.

During the Renaissance, valves were used in ditches, irrigation projects, and other large hydraulic system designs by the artist and inventor Da Vinci, and many of his technical solutions still exist. You knew that Da Vinci was a great artist, and you wouldn't expect him to make such a contribution to the valve.

Subsequently, in Europe, due to the development of exercise technology and hydraulic engineering, the requirements for valves also gradually increased, so copper and aluminum valves were created before valves went into metal.

The modern history of the valve industry goes hand in hand with the industrial revolution and deepens as the industrial revolution deepens. In 1705, Newconman invented the first industrial steam engine, which required controlling the operation of the steam engine. In 1769, Watt created the steam engine so that valves officially entered the mechanical industry, many steam engines use crane valves, safety valves, check valves and butterfly valves.

Watt's invention of the steam engine was the beginning of the widespread use of valves in industry. In the 18th and 19th centuries, the rapid spread of steam engines in mining, exercise, textiles, engineering and other industries increased the quantity and quality of valves, so spool valves were introduced. He also invented the first controller that controlled the speed of rotation, and since then controlling fluid flow has become increasingly important. The successive introduction of the threaded shutoff valve and the trapezoidal threaded wedge valve is a major breakthrough in valve development. The introduction of these two types of valves not only satisfies the continuous pressure and temperature rise requirements of valves in various industries at that time, but also initially satisfies the flow control requirements.

The first valve that really mattered in history would basically have to be a ball or globe valve, going back to John in the 19th century. Wallen and John. Charpmen designed but not put into production at the time.