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| The development of pneumatic press regulator | The development of pneumatic press regulator in the 20th century has eight years since the initial of history, has produced ten kinds of regulator valve products, self-reliance and locator, dampers and the development of valves are as follows:
The stability of the original: 20 with the pressure regulator.
In the 1930s, "V" type gap and two-seater valve seat disc represented v-type regulating valve products.
1940s: locator, regulator, appear to new diaphragm valve, Angle valves, butterfly valves, etc.
In the 1950s, ball valves to get bigger promotion, the 3-way instead of two single-block valves input system.
In the 1960s, the above products in China for the design improvement and series of standardization, domestic only has a complete series of products. Now we are in a single block valves, the use of two-seater valve, Angle valves, the 3-way valve, valve, the valve products is still seven 60's levels of products. When foreign launched an eighth structure regulator, sleeve valve.
In the 1970s, and a new structure of the product was - eccentric rotate the valve (9 kinds of valves varieties) structure. This period sleeve valve is widely used in foreign countries. In the late 1970s, domestic joint design sleeve valve, China has its own sleeve valve products series.
During the 1980s, China's reform and opening up, successfully introduced a petrochemical plant and regulator technology, enable the sleeve valve, the valve expanded use, especially the sleeve valve, instead of valve, two-seater, its use more and more widely. In the 1980s, the regulator and a significant progress is Japan's Cv3000 and small regulator, they will be a single structure, the pneumatic actuators spring thin film instead more spring type of valve actuator, improve, not only change the structure. Its outstanding characteristic is that the weight and height dropped 30%, flow coefficient increased by 30%.
In the 1990s, the regulator in the 1990s, special emphasis is on the reliability of the product, improved complicated problem and improve. By the late '90s, introduced the structure of products -- is a fully functional ultra light valve. Its outstanding characteristic is in reliability, function and the weight of the breakthrough. The breakthrough of the function with the function, therefore, by products, a kind of products for many of the products function is not complete, selection and use simplified, simplified simplified, The breakthrough in weight, than the dominant products single-seater multirole valve, two-seater valve, sleeve valve light 70-80%, lighter than pure small valve 40-50%, The reliability of the breakthrough tradition regulator solved - various uncertainties factors, such as a seal reliability, the reliability of the positioning of the reliability, etc. The appearance of this product, make China technology and application of the regulator level reached advanced level in 1990s, It is the major breakthrough in regulator, Especially the function of electronic ultra light valve, will become the mainstream of the next century regulator.
This article reprinted http://www.dgybl.com from (the), |
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