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调节阀压力等级的选择是调节阀选用技术中的重要问题之一,压力等级选择的正确与否是关系到调节阀能否安全可靠运行的前提条件。所谓调节阀压力等级的选择,主要指调节阀的公称压力、试验压力和工作压力的选择,对用户来讲主要是对调节阀公称压力的选择,而公称压力等级的选择又是根据介质温度下工作压力的大小和不同的材质来确定的,同时公称压力也是用户向调节阀制造厂订货时必须提出的主要技术参数。试验压力的大小,主要是调节阀制造厂为保证产品质量而规定的一项重要的试验项目,国内外对调节阀的试验压力大小的确定,都是根据公称压力的大小来决定的,并把试验压力的大小规定在各国的调节阀产品试验标准中。
The selection of the control valve pressure level is one of the most important problems in the selection technology of the control valve. Whether the pressure level is selected correctly or not is a precondition that relates to whether the control valve can operate safely and reliably. The so-called choice of pressure regulating valve, mainly refers to the nominal pressure regulating valve, test pressure and working pressure of choice, the user is mainly on the nominal pressure regulator valve selection, and the nominal pressure level is selected according to the medium temperature The size of the work pressure and different materials to determine, while the nominal pressure is also the user to the regulator valve manufacturer must be made when ordering the main technical parameters. The size of the test pressure is mainly an important pilot project regulated by the valve manufacturer to ensure the quality of the products. The test pressure of the control valve at home and abroad is determined according to the nominal pressure and the The size of the test pressure regulations in various countries regulating valve product testing standards.