螺杆衬套三内孔的加工质量对泵的安全运行起着至关重要的作用。一些产品运行时发生"抱轴"现象，三个内孔的平行度、圆度和锥度等形位公差或尺寸公差取得不当，以及加工精度不够均是重要原因。三内孔的交界锐角不允许有破坏，它直接影响到泵的效率。过去加工时通常采用镗床镗孔，现今则采用可确保精度的加工中心来加工或拉刀拉孔。然而对于高压三螺杆泵来说，由于流量通常较小，螺杆衬套的三个孔，尤其是安装从动螺杆的内孔又小又深，达到要求的精度往往有相当难度，因此也有采用分段式螺杆衬套结构的方法。尽管这种分段式结构产生效率较低，但仍不失为解决这一关键零件精度要求高的一种有效办法。
故障二：流量下降。
1、泵未达到额定转速
检查动力源，如电动机的电压、转速等
2、螺杆或螺杆衬套磨损，造成间隙过大
更换磨损零件
3、安全阀不密封
使阀完全复位或修理甚至更换阀、阀座、弹簧
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SNH40R38E6.7W23 SNH40R38U8W23 SNH40R38U12.1W23 SNH40R38UHJ92NW23 SNH40R38UM3NW23 SNH40R38K2W23
SNH40R46E6.7W23 SNH40R46U8W23 SNH40R46U12.1W23 SNH40R46UHJ92NW23 SNH40R46UM3NW23 SNH40R46K2W23
SNH40R54E6.7W23 SNH40R54U8W23 SNH40R54U12.1W23 SNH40R54UHJ92NW23 SNH40R54UM3NW23 SNH40R54K2W23
SNH80R36E6.7W23 SNH80R36U8W23 SNH80R36U12.1W23 SNH80R36UHJ92NW23 SNH80R36UM3NW23 SNH80R36K2W23
SNH80R42E6.7W23 SNH80R42U8W23 SNH80R42U12.1W23 SNH80R42UHJ92NW23 SNH80R42UM3NW23 SNH80R42K2W23
SNH80R46E6.7W23 SNH80R46U8W23 SNH80R46U12.1W23 SNH80R46UHJ92NW23 SNH80R46UM3NW23 SNH80R46K2W23
SNH80R54E6.7W23 SNH80R54U8W23 SNH80R54U12.1W23 SNH80R54UHJ92NW23 SNH80R54UM3NW23 SNH80R54K2W23
SNH120R42E6.7W23 SNH120R42U8W23 SNH120R42U12.1W23 SNH120R42UHJ92NW23 SNH120R42UM3NW23 SNH120R42K2W23
SNH120R46E6.7W23 SNH120R46U8W23 SNH120R46U12.1W23 SNH120R46UHJ92NW23 SNH120R46UM3NW23 SNH120R46K2W23
SNH120R54E6.7W23 SNH120R54U8W23 SNH120R54U12.1W23 SNH120R54UHJ92NW23 SNH120R54UM3NW23 SNH120R54K2W23
SNH210R40E6.7W23 SNH210R40U8W23 SNH210R40U12.1W23 SNH210R40UHJ92NW23 SNH210R40UM3NW23 SNH210R40K2W23
SNH210R46E6.7W23 SNH210R46U8W23 SNH210R46U12.1W23 SNH210R46UHJ92NW23 SNH210R46UM3NW23 SNH210R46K2W23
SNH210R54E6.7W23 SNH210R54U8W23 SNH210R54U12.1W23 SNH210R54UHJ92NW23 SNH210R54UM3NW23 SNH210R54K2W23
SNH280R43E6.7W23 SNH280R43U8W23 SNH280R43U12.1W23 SNH280R43UHJ92NW23 SNH280R43UM3NW23 SNH280R43K2W23
SNH280R46E6.7W23 SNH280R46U8W23 SNH280R46U12.1W23 SNH280R46UHJ92NW23 SNH280R46UM3NW23 SNH280R46K2W23
SNH280R54E6.7W23 SNH280R54U8W23 SNH280R54U12.1W23 SNH280R54UHJ92NW23 SNH280R54UM3NW23 SNH280R54K2W23
SNH440R40E6.7W23 SNH440R40U8W23 SNH440R40U12.1W23 SNH440R40UHJ92NW23 SNH440R40UM3NW23 SNH440R40K2W23
SNH440R42E6.7W23 SNH440R42U8W23 SNH440R42U12.1W23 SNH440R42UHJ92NW23 SNH440R42UM3NW23 SNH440R42K2W23
SNH440R46E6.7W23 SNH440R46U8W23 SNH440R46U12.1W23 SNH440R46UHJ92NW23 SNH440R46UM3NW23 SNH440R46K2W23
SNH440R54E6.7W23 SNH440R54U8W23 SNH440R54U12.1W23 SNH440R54UHJ92NW23 SNH440R54UM3NW23 SNH440R54K2W23
SNH660R40E6.7W23 SNH660R40U8W23 SNH660R40U12.1W23 SNH660R40UHJ92NW23 SNH660R40UM3NW23 SNH660R40K2W23
SNH660R44E6.7W23 SNH660R44U8W23 SNH660R44U12.1W23 SNH660R44UHJ92NW23 SNH660R44UM3NW23 SNH660R44K2W23
SNH660R46E6.7W23 SNH660R46U8W23 SNH660R46U12.1W23 SNH660R46UHJ92NW23 SNH660R46UM3NW23 SNH660R46K2W23
SNH660R51E6.7W23 SNH660R51U8W23 SNH660R51U12.1W23 SNH660R51UHJ92NW23 SNH660R51UM3NW23 SNH660R51K2W23
SNH660R54E6.7W23 SNH660R54U8W23 SNH660R54U12.1W23 SNH660R54UHJ92NW23 SNH660R54UM3NW23 SNH660R54K2W23
SNH940R42E6.7W23 SNH940R42U8W23 SNH940R42U12.1W23 SNH940R42UHJ92NW23 SNH940R42UM3NW23 SNH940R42K2W23
SNH940R46E6.7W23 SNH940R46U8W23 SNH940R46U12.1W23 SNH940R46UHJ92NW23 SNH940R46UM3NW23 SNH940R46K2W23
SNH940R50E6.7W23 SNH940R50U8W23 SNH940R50U12.1W23 SNH940R50UHJ92NW23 SNH940R50UM3NW23 SNH940R50K2W23
SNH940R54E6.7W23 SNH940R54U8W23 SNH940R54U12.1W23 SNH940R54UHJ92NW23 SNH940R54UM3NW23 SNH940R54K2W23
SNH1300R38E6.7W23 SNH1300R38U8W23 SNH1300R38U12.1W23 SNH1300R38UHJ92NW23 SNH1300R38UM3NW23 SNH1300R38K2W23
SNH1300R42E6.7W23 SNH1300R42U8W23 SNH1300R42U12.1W23 SNH1300R42UHJ92NW23 SNH1300R42UM3NW23 SNH1300R42K2W23
SNH1300R46E6.7W23 SNH1300R46U8W23 SNH1300R46U12.1W23 SNH1300R46UHJ92NW23 SNH1300R46UM3NW23 SNH1300R46K2W23
SNH1300R54E6.7W23 SNH1300R54U8W23 SNH1300R54U12.1W23 SNH1300R54UHJ92NW23 SNH1300R54UM3NW23 SNH1300R54K2W23
SNH1700R42E6.7W23 SNH1700R42U8W23 SNH1700R42U12.1W23 SNH1700R42UHJ92NW23 SNH1700R42UM3NW23 SNH1700R42K2W23
SNH1700R46E6.7W23 SNH1700R46U8W23 SNH1700R46U12.1W23 SNH1700R46UHJ92NW23 SNH1700R46UM3NW23 SNH1700R46K2W23
SNH660R54E6.7W21整机百龙滩水电厂用螺杆泵
SNH卧式三螺杆泵型号(SNH卧式安装、SNS立式安装、SNF法兰式安装、SNE插装式安装)(R为右旋，L为左旋)
SNH40R38E6.7W21 SNH40R38U8W21 SNH40R38U12.1W21 SNH40R38UHJ92NW21 SNH40R38UM3NW21 SNH40R38K2W21
SNH40R46E6.7W21 SNH40R46U8W21 SNH40R46U12.1W21 SNH40R46UHJ92NW21 SNH40R46UM3NW21 SNH40R46K2W21
SNH40R54E6.7W21 SNH40R54U8W21 SNH40R54U12.1W21 SNH40R54UHJ92NW21 SNH40R54UM3NW21 SNH40R54K2W21
SNH80R36E6.7W21 SNH80R36U8W21 SNH80R36U12.1W21 SNH80R36UHJ92NW21 SNH80R36UM3NW21 SNH80R36K2W21
SNH80R42E6.7W21 SNH80R42U8W21 SNH80R42U12.1W21 SNH80R42UHJ92NW21 SNH80R42UM3NW21 SNH80R42K2W21
SNH80R46E6.7W21 SNH80R46U8W21 SNH80R46U12.1W21 SNH80R46UHJ92NW21 SNH80R46UM3NW21 SNH80R46K2W21
SNH80R54E6.7W21 SNH80R54U8W21 SNH80R54U12.1W21 SNH80R54UHJ92NW21 SNH80R54UM3NW21 SNH80R54K2W21
SNH120R42E6.7W21 SNH120R42U8W21 SNH120R42U12.1W21 SNH120R42UHJ92NW21 SNH120R42UM3NW21 SNH120R42K2W21
SNH120R46E6.7W21 SNH120R46U8W21 SNH120R46U12.1W21 SNH120R46UHJ92NW21 SNH120R46UM3NW21 SNH120R46K2W21
SNH120R54E6.7W21 SNH120R54U8W21 SNH120R54U12.1W21 SNH120R54UHJ92NW21 SNH120R54UM3NW21 SNH120R54K2W21
SNH210R40E6.7W21 SNH210R40U8W21 SNH210R40U12.1W21 SNH210R40UHJ92NW21 SNH210R40UM3NW21 SNH210R40K2W21
SNH210R46E6.7W21 SNH210R46U8W21 SNH210R46U12.1W21 SNH210R46UHJ92NW21 SNH210R46UM3NW21 SNH210R46K2W21
SNH210R54E6.7W21 SNH210R54U8W21 SNH210R54U12.1W21 SNH210R54UHJ92NW21 SNH210R54UM3NW21 SNH210R54K2W21
SNH280R43E6.7W21 SNH280R43U8W21 SNH280R43U12.1W21 SNH280R43UHJ92NW21 SNH280R43UM3NW21 SNH280R43K2W21
SNH280R46E6.7W21 SNH280R46U8W21 SNH280R46U12.1W21 SNH280R46UHJ92NW21 SNH280R46UM3NW21 SNH280R46K2W21
SNH280R54E6.7W21 SNH280R54U8W21 SNH280R54U12.1W21 SNH280R54UHJ92NW21 SNH280R54UM3NW21 SNH280R54K2W21
SNH440R40E6.7W21 SNH440R40U8W21 SNH440R40U12.1W21 SNH440R40UHJ92NW21 SNH440R40UM3NW21 SNH440R40K2W21
SNH440R42E6.7W21 SNH440R42U8W21 SNH440R42U12.1W21 SNH440R42UHJ92NW21 SNH440R42UM3NW21 SNH440R42K2W21
SNH440R46E6.7W21 SNH440R46U8W21 SNH440R46U12.1W21 SNH440R46UHJ92NW21 SNH440R46UM3NW21 SNH440R46K2W21
SNH440R54E6.7W21 SNH440R54U8W21 SNH440R54U12.1W21 SNH440R54UHJ92NW21 SNH440R54UM3NW21 SNH440R54K2W21
SNH660R40E6.7W21 SNH660R40U8W21 SNH660R40U12.1W21 SNH660R40UHJ92NW21 SNH660R40UM3NW21 SNH660R40K2W21
SNH660R44E6.7W21 SNH660R44U8W21 SNH660R44U12.1W21 SNH660R44UHJ92NW21 SNH660R44UM3NW21 SNH660R44K2W21
SNH660R46E6.7W21 SNH660R46U8W21 SNH660R46U12.1W21 SNH660R46UHJ92NW21 SNH660R46UM3NW21 SNH660R46K2W21
SNH660R51E6.7W21 SNH660R51U8W21 SNH660R51U12.1W21 SNH660R51UHJ92NW21 SNH660R51UM3NW21 SNH660R51K2W21
SNH660R54E6.7W21 SNH660R54U8W21 SNH660R54U12.1W21 SNH660R54UHJ92NW21 SNH660R54UM3NW21 SNH660R54K2W21
SNH940R42E6.7W21 SNH940R42U8W21 SNH940R42U12.1W21 SNH940R42UHJ92NW21 SNH940R42UM3NW21 SNH940R42K2W21
SNH940R46E6.7W21 SNH940R46U8W21 SNH940R46U12.1W21 SNH940R46UHJ92NW21 SNH940R46UM3NW21 SNH940R46K2W21
SNH940R50E6.7W21 SNH940R50U8W21 SNH940R50U12.1W21 SNH940R50UHJ92NW21 SNH940R50UM3NW21 SNH940R50K2W21
SNH940R54E6.7W21 SNH940R54U8W21 SNH940R54U12.1W21 SNH940R54UHJ92NW21 SNH940R54UM3NW21 SNH940R54K2W21
SNH1300R38E6.7W21 SNH1300R38U8W21 SNH1300R38U12.1W21 SNH1300R38UHJ92NW21 SNH1300R38UM3NW21 SNH1300R38K2W21
SNH1300R42E6.7W21 SNH1300R42U8W21 SNH1300R42U12.1W21 SNH1300R42UHJ92NW21 SNH1300R42UM3NW21 SNH1300R42K2W21
SNH1300R46E6.7W21 SNH1300R46U8W21 SNH1300R46U12.1W21 SNH1300R46UHJ92NW21 SNH1300R46UM3NW21 SNH1300R46K2W21
SNH1300R54E6.7W21 SNH1300R54U8W21 SNH1300R54U12.1W21 SNH1300R54UHJ92NW21 SNH1300R54UM3NW21 SNH1300R54K2W21
SNH1700R42E6.7W21 SNH1700R42U8W21 SNH1700R42U12.1W21 SNH1700R42UHJ92NW21 SNH1700R42UM3NW21 SNH1700R42K2W21
SNH1700R46E6.7W21 SNH1700R46U8W21 SNH1700R46U12.1W21 SNH1700R46UHJ92NW21 SNH1700R46UM3NW21 SNH1700R46K2W21
SNH2200R42E6.7W21 SNH2200R42U8W21 SNH2200R42U12.1W21 SNH2200R42UHJ92NW21 SNH2200R42UM3NW21 SNH2200R42K2W21
SNH2200R46E6.7W21 SNH2200R46U8W21 SNH2200R46U12.1W21 SNH2200R46UHJ92NW21 SNH2200R46UM3NW21 SNH2200R46K2W21
SNH2900R40E6.7W21 SNH2900R40U8W21 SNH2900R40U12.1W21 SNH2900R40UHJ92NW21 SNH2900R40UM3NW21 SNH2900R40K2W21
SNH2900R46E6.7W21 SNH2900R46U8W21 SNH2900R46U12.1W21 SNH2900R46UHJ92NW21 SNH2900R46UM3NW21 SNH2900R46K2W21
SNH3600R46E6.7W21 SNH3600R46U8W21 SNH3600R46U12.1W21 SNH3600R46UHJ92NW21 SNH3600R46UM3NW21 SNH3600R46K2W21
SNH5300R46E6.7W21 SNH5300R46U8W21 SNH5300R46U12.1W21 SNH5300R46UHJ92NW21 SNH5300R46UM3NW21 SNH5300R46K2W21