Valve future development trend

Excerpt: With the continuous improvement of the economic level and the development of large-scale foreign complete sets of technology, a series of new types of complete sets of equipment and single machines have emerged. The main production processes of foreign petrochemical enterprises have achieved direct digital control, and some have also achieved computer graded control. Chemical enterprises such as synthetic ammonia vinyl, urea, synthetic fiber, synthetic rubber, and synthetic plastics have generally implemented roving inspection and alarm, and some enterprises have already realized some automatic control.

At present, foreign large-scale generating units with a capacity of 200,000kW or more are generally computer-controlled; nuclear power plants are generally computer-controlled; long-distance pipeline systems are computer-controlled in many countries and are equipped with microwave communication systems. The general control room only requires two or three staff on duty , You can monitor the whole line of work through TV.

With the improvement of various types of complete equipment, technological processes and performance, the series of foreign valves is still increasing. In recent years, many new varieties of valves have appeared. In addition to general manual, motorized, electric, pneumatic, hydraulic transmission, electric The types of valves with liquid linkage, gas-liquid linkage, and automatic control are increasing, and there is a trend of further development. Such as: emergency cut-off valve, quick switching valve, fire valve, anti-static valve, temperature and pressure reducing valve, butterfly check valve, pressure relief valve, vacuum jacket valve, water-cooled or air-cooled valve, safety gate valve, safety shut-off valve And many new types of valves, among which the universal valve, ball valve, butterfly valve and flat gate valve are the fastest growing valve varieties in 20 years.