Adjust the development process of pneumatic valve < / div >

to adjust the development of pneumatic valve since the 20th century since the initial seven, eighty years of history, has produced the ten categories of pneumatic valve products, the regulation of self-reliance type pneumatic valve and positioner, etc. , its development process is as follows:
20 s: the regulation of the stable pressure with the original pneumatic valve. :
30 s with 'V' type gap two-seater pneumatic valve and single-seat pneumatic valve products represented.
40 s: a locator, regulating pneumatic valve further produce new varieties, a pneumatic diaphragm valve, Angle valve pneumatic valve, butterfly valve, pneumatic ball valve, etc. S: pneumatic ball valve to get bigger promotion use, tee pneumatic valve to replace two single-block pneumatic valve input system.
in the '60 s: the series of improvements were made in China for the said goods design and standardization, standardization, the domestic only has a complete series of products. Now we are in a large number of use single-seat pneumatic valve, two-seater pneumatic valve, Angle valve, tee pneumatic valves, pneumatic diaphragm valve, butterfly valve, pneumatic ball valve seven kinds of products is still in the 60 s level of products. At this time, foreigners start launched 8 kinds of structure adjustment of pneumatic valve - — Pneumatic valve socket. In the 70 s: a new structure of the product - — Eccentric rotary pneumatic valve ( 9 kinds of the adjustment of the structure of pneumatic valve variety) 。 During this period the sleeve pneumatic valve is widely used in foreign countries. In the late 70 s, domestic joint sleeve pneumatic valve is designed, make China has its own sleeve series pneumatic valve products.
in the 80 s, early 80 s, because of the reform and opening up, China's successful introduction of the petrochemical plant and regulating pneumatic valve technology, make the sleeve pneumatic valve, eccentric rotary pneumatic valve used widely, especially the sleeve pneumatic valve, pneumatic valve to replace single, two-seat potential, its use is more and more widely. In the late 80 s, adjust the pneumatic valve is another major progress Japan Cv3000 and fine small pneumatic valve adjustment, they are in terms of structure, change the single spring pneumatic diaphragm actuator to more spring loaded diaphragm actuator, pneumatic valve's structure is improved, and not to change. Its outstanding characteristic is to adjust the weight of the pneumatic valve and a 30% drop in height, flow coefficient increased by 30%.
in the 90 s, 90 s in reliability, special difficult products is the focus of the research, improvement and improve. In the 90 s, by the shenyang company launched the first ten kinds of products - — A fully functional ultralight pneumatic valve. Its outstanding characteristic is in reliability, function, and weight. The breakthrough of function - — The only products with full function, therefore, can be made of a product instead of numerous products of function is not complete, make the selection and use of simplification, varieties of simplified; In the breakthrough of weight - — Than the leading product single-seat pneumatic valve, two-seater pneumatic valve, pneumatic valve sleeve light 70 ~ 80%, are less than pure small pneumatic valve 40 ~ 50%; The reliability of the break - — Solve the traditional pneumatic valve series of unreliability factors, such as the reliability of the seal, the reliability of positioning, the reliability of action, etc. The arrival of the products, and make the regulation of China pneumatic valve technology and application level has reached the advanced level, in the late ninety s; It was a great breakthrough on regulating pneumatic valve; Pneumatic valve, especially electronic fully functional ultra light will become the next century the mainstream of the pneumatic valve adjustment.