原文
The valve is a device used to make the media (liquid, gas and powder) in the pipes and equipment flow or stop as well as to control the flow volumes, acting as an indispensable fluid control device in the national economic departments, such as petroleum, chemical industry, power plants, long-distance pipelines, shipbuilding, nuclear industry, various low temperature engineering, space navigation and marine oil exploration. With the increasingly fierce competition in the global valve market, many outstanding internationalMagnetic pumps valve manufacturers have closed down their factories in North America, Europe and Japan and shifted their factories to China, India, South Korea and Central Europe in order to reduce costs. With the intensification of exploitation and utilization of oil and gas in China, China's valve market will increase sharply, making most valve manufacturers set up factories in China, resulting in the speed-up of the demands for valves in China. Recently, China is striving to narrow the gap with the U.S.A. With several years of development, the number of valve enterprises in China stands the first place in the world. There are about 6,000 large and small valve enterprises capable of providing over 3,500 varieties in over 40,000 specifications. In 2009, the scale of China's valve market reached over CNY 60 billion. China is expected to surpass America to become the largest valve market in the world in the next 2 to 3 years. From the aspect of the products, China's valve industry has had the ability of producing more than a dozen categories of products, such as gate valves, cut-off valves, ball valves, butterflySelf-priming pumps valves, safety valves. with the highest and lowest temperatures of 570? and -196? respectively, at the highest pressure of 600 Mpa and with the largest drift diameter of 5350 mm. However, mass high-end valves in the domestic market still depend on import, and most domestic produced valves belong to low added-value and labor-intensive products while few meet the international advanced technical level. At present, various valves produced by Chinese manufacturers have the shortcomings of inner or external leak, inferior quality in the externals, short in performance, etc. A part of the products are only equivalent to the international level in the early 1980s. Some valves used in the high temperature and pressure devices or crucial devices still depend on import. Besides, China's valve industry lags behind international enterprises in the fields of industry structure, industry chain and professional level. The major factors that cause Chinese local valve products with inferior quality are as follows: due to sharp expansion of the market scale and technical weakness, numerous small manufacturing enterprises with poor equipment are successively entering valve production industry. Their products are mostly produced by imitation and short of core technologies, resulting in serious quality problems of the products.
原文来自：http://www.cadillacforums.com/forums/cadillac-deville-1985-2005-including-1985/187726-egr-valve.html

译文：研究和市场：研究中国阀门行业报告 -2010-2012
该阀是用于在管道和设备的流媒体（液体，气体和粉末）或停止以及控制流量的设备体积，作为一个不可缺少的流体控制设备行事的国家经济部门，如石油， ，化工，电站，长输管线，造船，核工业，各种低温工程，宇航以及海洋石油勘探。 随着越来越多地在全球阀门市场的激烈竞争，许多优秀的多级泵 国际阀门制造商已经关闭了在北美，欧洲和日本的工厂，将工厂转移到中国，印度，韩国和中欧，以降低成本。 随着石油开采和天然气利用在中国的加剧，中国的阀门市场将急剧增加，使得大多数阀门制造商在中国设立工厂，从而在速度为中国的阀门的需求了。最近，中国正在努力缩小与几年的发展与美国的差距，在中国的阀门企业总数达世界首位。大约有6000名大，小阀门企业提供超过3500个品种规格超过40,000的能力。在2009年，中国的阀门市场规模达到600亿人民币以上。中国有望超过美国，成为在未来2至3年中，世界上最大的阀门市场。 从产品方面，中国阀门行业的生产已超过如闸阀，截止阀，球阀，蝶阀，安全阀产品，十几大类能力。与570的最高气温和最低气温？和-196？分别在600兆帕最高压力和最大的5350毫米通径。 然而，大量高端阀门在国内市场仍依赖进口，而大多数国内生产阀门属于低附加值和化工泵 劳动力密集型产品，而少数达到国际先进技术水平。目前，由中国厂家生产的各种阀门有内或外泄漏，质量低劣的缺点，在外部，短，性能等的部分产品只相当于80年代初国际水平。在高温高压设备或关键设备中使用的一些阀门仍然依赖进口。此外，中国阀门行业落后在工业结构，产业链和专业水平领域的国际企业。 认为导致当地劣质阀门产品中的主要因素如下：由于急剧扩张的市场规模和技术面疲软，许多小型生产设备差的企业也陆续进入阀门生产行业。他们的产品大多是模仿生产的核心技术和短，在产品存在严重质量问题造成的。

2010-12-24

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