The status quo of China's control valve

Control valve in industrial production in China started late. Started to develop a single-seat valve, double seat valves and other products, mainly generic products of the former Soviet Union in the 1960s. Mechanical industrial backwardness, machining accuracy is low, so leakage, but still meet the requirements of the industrial production process control. 1970s, with the expansion of the scale of industrial production, industrial process control requirements increase, the control valve products have been unable to meet the requirements of production process control, such as the medium of high pressure, high pressure drop, low temperature, high temperature and corrosion control requirements . To this end, a number of large-scale petrochemical enterprises in the introduction of equipment at the same time, the introduction of a number of control valves, for example, with balanced spool valve sleeve, eccentric rotary valve, control valve for domestic manufacturers pointed out the development direction. Therefore, in the late 1970s, a number of factory began to imitate the eccentric rotary valve and other products o began in the 1980s, with the implementation of policies and the implementation of China's reform and opening up, the control valve manufacturer to introduce the technologies and products of the the famous foreign control valve manufacturers, product variety and quality of the control valve has been markedly improved. For example, the production of various types of sleeve valve, eccentric rotary valve and started to develop a small fine control valve. With the large-scale power plants and other industrial projects, carried out also developed a variety of electric-hydraulic actuator, long stroke implementing agencies and other implementing agencies to accommodate the large thrust and moment of thrust, long stroke control requirements.pneumatic hand valve
 The beginning of the 1990s, the control valve industry in China is also the introduction and digestion of foreign advanced technology rapid development, joint ventures and foreign control valve manufacturing plant have been producing unique products to fill some special industrial control blank, so that our The control valve industry level has increased dramatically shorten the gap with foreign countries. With the application of field bus technology, 2l century, the use of fieldbus technology control valve products available, some foreign fieldbus control valves and related products, such as smart valve positioner to start new construction applications , some manufacturers have begun the development of related products.high temperature solenoid valve