The evolution of the pneumatic regulator is beautiful

In the 20th century, pneumatic control valve, has been eighty years of history. Successively through the continuous innovation of science and technology, nowadays the ten kinds of pneumatic control valve products, self-reliance type valve and pneumatic control valve positioner pneumatic control valve, etc. Next, let's take a look at the evolution of the pneumatic control valve beautiful: 1, 20 s: the stability of the original pneumatic control valve with pressure. 2, 30 s: 'V' type gap two-seater and single-seat valves for on behalf of the advent of v-type regulating ball valve products. 3, 40 s: a locator, pneumatic control valve further produce new varieties, diaphragm valve, Angle valve, butterfly valve, ball valve, etc. 4, 50 s: ball valves get bigger promotion use, three-way valve to replace two single-block valve input system. : 5 s and 60 s of the above products in the domestic series of improved design and standardization, standardization, the domestic only has a complete series of products. We also in the extensive use of the product is still in the 60 s level of products. At this time, the foreign launched 8 kinds of pneumatic - valve structure - — Sleeve valve. 6, in the 70 s: a new structure of the product - — Eccentric rotary valve. This time the sleeve valve is widely used in foreign countries. In the late 70 s, domestic joint sleeve valve is designed, make China has its own sleeve valve products. 7, in the 80 s: during the period of reform and opening up, China successfully introduced petrochemical device and pneumatic control valve technology, make the sleeve valve, eccentric rotary valve is used widely, to replace single, two-seat valves, its use is more and more widely. 8, in the late 80 s: pneumatic control valve is another major progress Japan Cv3000 and fine small pneumatic control valve, they are in terms of structure, change the single spring pneumatic diaphragm actuator to more spring loaded diaphragm actuator, valve structure is improved, and not to change. Its outstanding characteristic is to make the weight of the pneumatic control valve and a 30% drop in height, the flow coefficient increased by 30%. 9, in the 90 s: pneumatic - valve is focused on the reliability of the 90 s, the special difficult products research, improvement and improve. 10, in the late 90 s: the first ten kinds of products - — A fully functional ultra light valve. Its outstanding characteristic is in reliability, function, and weight. The breakthrough of function - — The only products with full function, the appearance of the product of pneumatic - valve technology and application of Chinese level has reached the advanced level, in the late ninety s; It was a great breakthrough of pneumatic control valve; Especially electronic fully functional ultra light valve, will become the mainstream of the pneumatic control valve in the 21st century.