双级水平中开泵为需要适度的高水头而设计，能提供一个很宽的流量范围。
Two Stage, Horizontally Split Case Pumps designed for applications requiring moderately high head over a wide range of flows.
这种泵效率高、经济、简单、体积小，可压送压力水头高达250英尺的水量。
This pump is efficient, economical, simple and quite small. It can be built to furnish almost any amount of water against pressure heads of up to 250 feet.
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