BS EN 60534-8-4:2015建立了预测控制阀中产生的噪声的方法 通过液体流量和阀门下游和阀门外部测得的噪声级 管子。噪声可能由正常湍流和空气中的液体空化产生 阀门。该方法的部分内容基于声学、流体力学和声学的基本原理 机械师，机械师。试验数据验证了该方法的有效性。交叉引用:IEC 60534-1IEC 60534-2-3IEC 60534-8-2IEC 60534-8-3EN 60534-1EN 60534-2-3EN 60534-8-2EN 60534-8-3VDMA 24422ISA RP75。23-1995购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS EN 60534-8-4:2015 establishes a method to predict the noise generated in a control valve by liquid flow and the resulting noise level measured downstream of the valve and outside of the pipe. The noise may be generated both by normal turbulence and by liquid cavitation in the valve. Parts of the method are based on fundamental principles of acoustics, fluid mechanics, and mechanics. The method is validated by test data.Cross References:IEC 60534-1IEC 60534-2-3IEC 60534-8-2IEC 60534-8-3EN 60534-1EN 60534-2-3EN 60534-8-2EN 60534-8-3VDMA 24422ISA RP75.23-1995All current amendments available at time of purchase are included with the purchase of this document.