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Pneumatic valve from China General Machinery Industry Association valves Branch has learned that the next 10 years , thermal power, nuclear power, hydropower, large petrochemical , oil and gas gathering and transportation pipelines, coal liquefaction and metallurgical and other major construction projects supporting the valve new products will be developed focus , rapid growth is expected to lead the entire valve market.
According to the Association to experts, in the development of these new valves , attention should be paid to promote the application of new technology , such as the development of large-caliber long pipeline ball valves should be used as a whole overall welding technology ; to improve the valve sealing surface corrosion and erosion resistance , a few manufacturers have started using tungsten carbide HVOF process , but should pay attention to the development of nanoscale materials on the sealing surface modification coating , and laser cladding process technology. In addition, over the years in the valve industry applications of cobalt -chromium-tungsten wire automatic plasma welding process should continue to promote to replace manual welding , ensuring quality valve sealing surface ; process to achieve automatic control engineering devices should be strengthened intelligent electric , development of hydraulic valve actuators ; accelerate the development of new transmission methods such as magnetic drive , magnetic drive the development of new closed valves to eliminate leakage between the stem and packing , pneumatic valve to make it suitable for flammable, explosive, toxic, corrosive media and requirements locked to prevent the misuse of the pipeline.
According to reports, the next 10 years , China will have more than 20,000 km oil pipeline to build , including Russia, Kazakhstan and other transnational oil pipeline . In addition, following the " East" , but also the construction of more than 20,000 kilometers of cross-border gas pipeline and branch . These projects require more than 20,000 only about large diameter and small diameter pipeline ball valve, flat valve ; will build 10 to 20 million-ton large refineries built, renovated or expanded a number of 800 000 to 100 tons of large ethylene device has been approved and pending 50 million to 60 million tons / year PTA plant also has a dozen large , it will provide a huge market for the valve industry ; building large fertilizer and ammonia plant will also provide an opportunity for valve manufacturing ; another direct coal liquefaction is likely to form a new industry , due to the direct coal liquefaction process medium high temperature , high pressure, high solids content , the valve has a high demand , will form an emerging market .
To this end , pneumatic valve industry should form enterprise groups , investments in technology, the development of high , high precision and advanced valve products ; enhance product standardization , so that standards need to keep up with the number and level of development of the situation .
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