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我厂3BA—9离心泵于79年获国家银质奖(表18为3EA—9离心泵国内外先进水平对照表)。此离心泵近几年来生产量大,出口和内销均供不应求,深受用户欢迎.但由于该产品图纸是全国水泵行业联合设计的(水力模型参照苏联标准),其标准扬程曲线在小流量区存有2～3米的“驼峰”——泵的扬程曲线在局部范围出现了波形。它影响水泵在小流量时工作性能不稳定。近年来,全国水泵行业把BA 型离心泵存
Our factory 3BA-9 centrifugal pump in 79 won the national silver medal (Table 18 for 3EA-9 domestic and international advanced level centrifugal pump table). The centrifugal pump in recent years, large-scale production, exports and domestic demand are in short supply, welcomed by users.But because the product drawings are the joint design of the pump industry (hydraulic model with reference to the Soviet Union standards), the standard lift curve in the small flow area There are 2 to 3 meters of “humps” - pump head curve appeared in the local range of the waveform. It affects the pump performance is not stable at low flow rates. In recent years, the national pump industry to save BA centrifugal pump