China the status of the control valve

Control valve in industrial production in China started late.standard air cylinder
 Development of single-seat valve, double seat valves and other products, generic drugs from the steps of the former Soviet Union in the 1960s. Machinery and industrial backwardness, low precision, so that the leak, but still meet the requirements of industrial process control. 1970, increased demand and expand the scale of industrial production, industrial process control, control valve is not able to meet the control requirements of the production process, as a high-pressure, high-pressure drop, low temperature, high temperature, anti-corrosive media. To this end, large-scale petrochemical enterprises in the introduction of equipment at the same time, the introduction of a series of control valves, for example, with a balanced spool valve casing, eccentric rotary valve, control valve, domestic manufacturers, direction. Therefore, in the late 1970s, a number of works to imitate the eccentric rotary valve and other products O in the 1980s began the implementation of the strategy and the implementation of China's reform and opening up, the control valve manufacturer's technology showcase products and well-known foreign control valve control valve manufacturer, product variety and quality has been significantly improved. Therefore, the preparation of all kinds of eccentric rotary valve sleeve sliding control valve and began to develop a small fine. With the large-scale power plants and other industrial projects, carried out has also developed a variety of electro-hydraulic drive, long actuators and actuators thrust and torque thrust, long stroke control requirements. The early 1990s, the control valve industry, the introduction and digestion of foreign advanced technology and the rapid development in China, joint ventures and foreign control valve manufacturing plant to produce unique products to fill certain industrial control empty, so we control valve industry level has increased, greatly reducing the gap with foreign countries. With the application of field bus technology, 2l century, the use of the fieldbus technology control valve products, some foreign the fieldbus control valves and related products, such as smart valve positioner to start a new construction applications, some manufacturers have begun to develop products.direct acting solenoid valves