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China Shanghai Qiuyi Valve Co.,Ltd
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The development process of regulating valve
Regulating valve of the initial development since the 20th century has been 80 years of history, has produced 10 major categories of control valve products, Self-valve and positioning, etc., regulating valve and control valve course of development as follows:
1920s: the stability of the original with the pressure regulating valve available.
1930s: The "V"-notched two-seat single-seat valve and the valve as the representative of V-regulating valve products available.
1940s: a locator, further regulating valve produce new varieties, there Gemo Fa, angle-valve, butterfly valves, ball valves, etc..
1950s: ball valves are promoting the use of the larger, three-way valve to replace two single-seat valve in the system.
1960s: In the above-mentioned domestic product was designed to improve the serialization and standardization, standardization, the only country to a complete series of products. Now we are still large-scale use of the single-seat valve, two-seat valve, angle-valve, three-way valve, Gemo Fa, butterfly valves, valve seven types of products is still the 1960s level of products. At this time, starting the eighth foreign species of regulating valve - sleeve valve.
1970s: a new structure and the product - eccentric rotary valve come out (the ninth largest category of regulating valve varieties). During this period sleeve valve is widely used abroad. The late 1970s, domestic design of the joint sleeve valve, so that China has its own sleeve valve product line.
1980s: the period of reform and opening up, China has successfully introduced a petrochemical plant and control valve technology, the sleeve valve, eccentric rotary valve has been promoting the use of, in particular the sleeve valve, much to replace single-, two-seat valve trend, the use of More widely. The late 1980s, another major progress in regulating valve is Japan's small Cv3000 and precision control valve, in their structure, the single spring aerodynamic film implementing agencies to more spring-film executive body, the valve is to improve the structure, not Change. It is the outstanding feature of regulating valve so that the weight and height dropped 30%, 30% increase in traffic factor.
1990s: the 1990s regulating valve focus is on reliability, special problems of key products, improve and improve on. By the late 1990s, launched by the Hualin the 10th of the structure of the products - a full-featured ultra-light valve. It is the prominent feature of reliability, functionality and weight of a breakthrough. Features a breakthrough - the only full-featured products, therefore, be a product to replace many functions are not comprehensive products and simplify the selection, use simplified, simplified varieties in the weight of the breakthrough - than the leading products Single-seat valve, two-seat valve, valve sleeve light 70 to 80 percent, a small fine light valve also 40 to 50 percent; reliability of a breakthrough - to solve the traditional control valve, and other non-reliability factors, such as sealed Reliability, the reliability of positioning, such as the reliability of action. The advent of the product, so that China's control valve technology and applications reached the advanced level in the late 1990s; It is a major breakthrough in regulating valve in particular the electronic full-featured ultra-light valve, will become the next century regulating valve Mainstream. |
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