液下泵NPSHr基准面在哪? “按api 610规定,对卧式泵,npsh基准面是泵轴中心线;对立式管道泵,其基准面是泵吸入口中心线;对其他立 ... api 610 11th的6.1.8项最后一段话。原话是“unless otherwise specified, the datum elevation shall be the shaft centreline for horizontal pumps, the suctionnozzle centreline for vertical in-line pumps, and the top of the foundation for vertically suspended pumps.” 查看更多