译文：
　①控制阀的品种多，规格多，参数多。控制阀为适应不同工业生产过程的控制要求，例如温度、压力、介质特性等，有近千种不同规格、不同类型的产品，使控制阀的选型不方便、安装应用不方便、维护不方便、管理不方便。　　②控制阀的可靠性差。控制阀在出厂时的特性与运行一段时间后的特性有很大差异，例如，泄漏量增加、噪声增大、阀门复现性变差等，给长期稳定运行带来困难。　　③控制阀笨重，给控制阀的运输、安装、．维护带来不便。通常，控制阀重量比一般的仪表重量要重几倍到上百倍，例如，一台DN200的控制阀重达700kg，运输、安装和维护都需要动用一些机械设备才能完成，给控制阀的应用带来不便。　　④控制阀的流量特性与工业过程被控对象特性不匹配，造成控制系统品质变差。控制阀的理想流量特性已在产品出厂时确定，但工业过程被控对象特性各不相同，力口上压降比变化，使控制阀工作流量特性不能与被控对象特性匹配，并使控制系统控制品质变差。　　⑤控制阀噪声过大。工业应用中，控制阀噪声已成为工业设备的主要噪声源，因此，降低控制阀噪声成为当前重要的研究课题，并得到各国政府的重视。　　⑥控制阀是耗能设备，在能源越来越紧缺的当前，更应采用节能技术，降低控制阀的能耗，提高能源的利用率。

“ Control Valve Application Problems”是由提供的国际阀门新闻，译文仅供参考。另外，中国控制阀网还提供相关产品搜索：、、、、等。

原文：
① control valve varieties, specifications and more multi-parameter. Control valves for industrial production processes to adapt to different control requirements, such as temperature, pressure, media characteristics, etc., there are nearly a thousand kinds of different specifications, different types of products, so that control valve selection inconvenient inconvenient to install applications, maintenance inconvenient management inconvenient. ② control valve reliability of difference. Control valve at the factory features and operating characteristics of a period of time are very different, for example, increased leakage, noise increases, the valve reproducibility deteriorated and so on, to the long-term stable operation difficult. ③ control valve hey, to the control valve transportation, installation. Maintenance of inconvenience. Typically, the control valve of the instrument than the erage weight of the weight should be placed several times to the previous hundred times, for example, a control valve DN200 weighing 700kg, transportation, installation and maintenance need to use some machinery and equipment to complete the application to the control valve with a be an inconvenience. ④ control valve flow characteristics and industrial process does not match the characteristics of controlled object, resulting in deterioration of the quality control system. Control valve flow characteristics of the ideal of the factory has been determined, but was charged with object properties of industrial processes vary, power port on the pressure drop ratio changes so that control valve flow characteristics of the work can not be accused of object properties matching, and to control the system control quality variation. ⑤ control valve noise is too large. Industrial applications, the control valve noise, industrial equipment has become a major noise source, therefore, reduce the control valve noise become important research topics, and get the attention of Governments. ⑥ control valve is energy-consuming equipment, the current shortage in the energy more and more and more energy-sing technologies should be used to reduce control valve of the energy consumption, improve energy utilization.

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