至少一个腹板从集管管道的顶部和底部中至少一个竖直延伸并连接到凸缘上。
The waterfeeding recirculation header pipe will be set between water-feeding pump and deaeration water tank to fulfill requirements for start-up and low load operation of waterfeeding pump.在给水泵与除氧水箱之间,设置给水再循环母管,以满足给水泵在启动及低负荷运行时的需要。