Do you know the development of regulating valve?

Date: Unspecified

        The development of regulating valve since the beginning of the 20th century has been eighty years of history, has produced ten categories of regulating valve products, self-operated valve and positioner, the development of regulating valve and control valve is as follows:

In the 20 s: The original regulator for pressure stabilization was available. 

In the 30 s: to "V" notch double seat valve and single seat valve on behalf of the product v-regulating ball valve came out.

In the 40 s: Positioner, new varieties of regulating valve are further produced, diaphragm valve, Angle valve, butterfly valve, ball valve and so on.

        In the 50 s: Ball valve has been widely used, three-way valve instead of two single-seat valve into the system.

In the 60 s: After a series of improvement and standardization of the above products in China, a complete series of products are available in China. We still use a large number of single-seat valve, two-seat valve, Angle valve, three-way valve, diaphragm valve, butterfly valve, ball valve seven products are still the level of the 1960s products. At this time, foreign began to roll out the eighth structural control valve - sleeve valve. 

In the 70 s : Another new structure of the product - eccentric rotary valve came out (the ninth category of structural control valve varieties). Sleeve valves were used abroad during this period. At the end of the 1970s, the domestic joint design of sleeve valve, so that China has its own sleeve valve product series.

        In the 80 s : During the period of reform and opening up, China successfully introduced petrochemical equipment and regulating valve technology, so that sleeve valve and eccentric rotary valve have been popularized and used, especially sleeve valve, which has the potential to replace single and double seat valve, its use is more and more widely. At the end of the 80's, the valve is another major progress is Japan's Cv3000 and fine small valve, they in the structure, the single spring pneumatic film actuator to multi-spring film actuator, the structure of the valve is just improved, not changed. Its outstanding characteristics are to make the weight and height of the regulating valve down by 30%, flow coefficient increased by 30%.

        In the 90 s: The focus of the 90's control valve is in the reliability, special difficult products, improve. By the end of 90's, waring company launched the tenth structure of the product - full function ultra light valve. Its outstanding features are the breakthrough in reliability, function and weight. Functional breakthrough -- only with the full function of the product, therefore, can be replaced by a product on many functional incomplete products, so that the selection of simplified, simplified, simplified varieties; The breakthrough in weight -- 70 ~ 80% lighter than the leading single seat valve, double seat valve and sleeve valve, and 40 ~ 50% lighter than the fine small valve; Reliability breakthrough - to solve the traditional control valve and other unreliable factors, such as the reliability of sealing, positioning, action and so on. The coming out of this product makes the technology and application level of Chinese regulating valve reach the advanced level at the end of 1990s. It is a major breakthrough in regulating valve; Especially electronic full - function ultra - light valve, will become the next century regulating valve mainstream.

        Source: Unspecified