According to reports, in the next 10 years, my country will have more than 20,000 kilometers of oil pipelines to be constructed, including transnational oil pipelines such as Russia and Kazakhstan. In addition, following the "West-East Gas Pipeline", my country has to build more than 20,000 kilometers of transnational gas pipelines and branch lines.

These projects will require more than 20,000 large-diameter pipeline ball valves, medium and small-diameter ball valves, and flat valves; 10-20 large-scale oil refineries will be built, and a batch of 800,000-1 million-ton large-scale ethylene plants will be built or expanded. There are also more than a dozen large-scale PTA devices approved and pending approval of 500,000 to 600,000 tons per year, which will provide a huge market for the valve industry; the construction of large-scale fertilizer and synthetic ammonia devices will also provide opportunities for the valve manufacturing industry. ; In addition, direct coal liquefaction is likely to form a new industry. Due to the high working temperature, high pressure and high solid particle content of the direct coal liquefaction process, it has high requirements on valves and will form an emerging market.

According to valve industry technicians, when developing these new electric ball valves, attention should be paid to the promotion and application of new technology. For example, the development of long-distance pipelines large-diameter integral ball valves should adopt integral welding technology; in order to improve the corrosion resistance and erosion resistance of the valve sealing surface A few manufacturers have begun to adopt the supersonic flame spraying tungsten carbide process, and at the same time, attention should be paid to the use of nano-scale materials to modify the sealing surface and the development of laser cladding technology.

In addition, the cobalt-chromium-tungsten plasma wire-feeding automatic surfacing welding technology used in the valve industry for many years should continue to be promoted to replace manual welding to ensure the quality of the valve sealing surface; in order to realize the automatic control of the process flow of the engineering device, the intelligent electric, Development of valves for hydraulic transmission devices; speed up the development of new transmission methods such as magnetic transmission, develop new closed magnetic transmission electric ball valve series, eliminate leakage points between the valve stem and the packing, and make it suitable for inflammable, explosive, and toxic , Corrosive media and pipelines that require locking to avoid misoperation.

　　 It is understood that the domestic production of large-scale ethylene plants in China has reached 80%, and the high-temperature and high-pressure valves used for ethylene have also been domestically produced under Sinopec. The effect is good, and the product quality and performance are better than imported products. Sinopec's localization office expressed great confidence in advancing the localization of valves, and believed that domestic backbone enterprises have the ability to undertake the task of tackling key problems in this project. After discussion, the participants agreed that the 1500-pound electric ball valve can be localized, and the 2500-pound electric ball valve can also be partially localized.