The history of the valve

    Valve is a control device of fluid pipeline, its basic function is to connect or disconnect the flow of piping medium, change the flow direction, medium media pressure and flow regulating and protect the normal operation of pipeline equipment.
    With the constant development of modern industry, valve demand is growing. A modern petrochemical plant will need to thousands of kinds of valves, valve is volume used and frequent opening and closing.
    Often due to the manufacture, using selection, improper maintenance, it take place run, drip, drain phenomenon. Then it occur fire, explosion, poisoning, scalding injury, or cause poor product quality, energy consumption increased, corrosion, material consumption increased, environmental pollution, and even cause the shutdown accident. Therefore, people want high quality valves, but also for greater use and maintenance level of valve. This has engaged the valve operators, maintenance staff and engineers, new demands. In addition to well-designed, rational use and correct operation of the valve, should also be timely maintenance, repair the valve, in order to make the valve's "Run, drip, drain," and all kinds of accidents to a minimum.