调节阀口径计算? • where expected static pressure variations and system contingencies indicate special consideration 一些系统的压力是经常变化的,因此要考虑这些特殊工况。 • pressure drop allocated to a control valve in the suction, or discharge line of a centrifugal compressor, shall be 5% of suction absolute pressure or 50% of system dynamic losses (exclusive control valve) at the compressor rated point whichever is the largest. 当调节阀设置在离心式压缩机的进出口时,调节阀的压降可以选用二者之间的最大值: 1。入口绝压的5%, 2。额定流量下排出管线总阻力降(不含调节阀)的50%。 查看更多