PVV2-1X/055RA15DMB

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R900313647 ZUBEHOER AB41-20A1X/B35-100/0-PVV1/M
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R900247177 PVV54-1X/162-098RB15LLMC
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R900245088 PVV21-1X/045-046RA15RRMB
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R900221928 DICHTUNGSSATZ PVV5-1X/..V
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 PVV2-1X/055RA15DMB

5）进水管弯管处出现裂痕，进水管与水泵连接处出现微小间隙，都有可能使空气进入进水管。  水泵转速过低

1）人为因素。有相当一部分用户因原配电动机损坏，就随意配上另一台电动机带动，结果造成了流量少、扬程低抽不上水后果。

2）传动带磨损。有许多大型离水泵采用带传,因长期使用,传动带磨损而松也,出现打滑现象，降低了水泵转速。

3）安装不当。两带轮中心距太小或两轴不太平行，传动带紧边安装到上面，致使包角太小，两带轮直径计算差错以及联轴传动水泵两轴偏心距较大等，均会造成水泵转速变化。

4）REXROTH叶片泵本身机械故障。叶轮与泵轴紧固螺母松脱或泵轴变形弯曲，造成叶轮多移，直接与泵体摩擦，或轴承损坏，都有可能降低水泵转速。

 PVV2-1X/055RA15DMB