原文：
1． 安全阀的主要标准 （1）GB12241－89《安全阀 一般要求》。 （2）GB12242－89《安全阀性能试验方法》 （3）GB12243－89《弹簧直接载荷式安全阀》 （4）ZBJ98013－89《电站安全阀技术条件》 （5）JB／T53170－94《弹簧直接载荷式安全阀 产品质量分等》 2． 安全阀的安装和使用 （1）进口管的装设 安全阀必须垂直安装，并且{zh0}是直接安装在容器的接口上而不另设进口管。当必须装设进口管时，进口管的截面积应不小于安全阀的进口截面积，进口管的长度应尽可能短，进口管口必须采用弯头时，其弯曲半径应尽可能大一些。 （2）排放管的装设 安全阀{zh0}是直接或通过短的坚直排放管向大气排放。在设置排放管道时，应尽可能避免或减少对安全阀性能带来的不良影响。

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译文：
1. The main criteria for safety valve (1) GB12241-89 "General requirements for safety valve." (2) GB12242-89 "safety valve performance test method" (3) GB12243-89 "Spring loaded safety valve" (4) ZBJ98013-89 "power plant safety valve technology" (5) JB/T53170-94 "Spring loaded safety valve product quality grading" 2. Installation and use of safety valve (1) installation of safety valve inlet tube must be installed vertically, and preferably directly on the container's interface instead of separate inlet tube. When the inlet tube to be installed, the inlet tube of the cross-sectional area should not be less than the safety valve cross-sectional area of imports, imports of tube length should be as short as possible, I have to use elbow inlet tube, its bending radius should be as large as possible number of . (2) the installation of safety valve discharge pipe is best, either directly or through a short erect outfall discharge into the atmosphere. In the installation of exhaust pipes, the maximum possible safety valve to avoid or minimize the adverse performance effects.