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
HSNH系列三螺杆泵常规型号：
HSNH40-38 HSNH40-46 HSNH40-54 HSNH80-36 HSNH80-42
HSNH80-46 HSNH80-54 HSNHnbsp; HSNHnbsp; HSNH120-51
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNH280-43
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNH440-52
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNH660-51
HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp; HSNHnbsp;
HSNHnbsp; HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNH
HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNHnbsp;
HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNHnbsp;
HSNHnbsp;HSNHnbsp;HSNHnbsp;HSNH
HSN40系列三螺杆泵型号
HSNH40-38
HSNH40-38N
HSNH40-38Z
HSNH40-38W1
HSNH40-38NZ
HSNH40-38W1Z
HSNH40-46
HSNH40-46N
HSNH40-46Z
HSNH40-46W1
HSNH40-46NZ
HSNH40-46W1Z
HSNH40-54
HSNH40-54N
HSNH40-54Z
HSNH40-54W1
HSNH40-54NZ
HSNH40-54W1Z
---
HSNS40-38
HSNS40-38N
HSNS40-38Z
HSNS40-38W1
HSNS40-38NZ
HSNS40-38W1Z
HSNS40-46
HSNS40-46N
HSNS40-46Z
HSNS40-46W1
HSNS40-46NZ
HSNS40-46W1Z
HSNS40-54
HSNS40-54N
HSNS40-54Z
HSNS40-54W1
HSNS40-54NZ
HSNS40-54W1Z
---
HSNF40-38
HSNF40-38N
HSNF40-38Z
HSNF40-38W1
HSNF40-38NZ
HSNF40-38W1Z
HSNF40-46
HSNF40-46N
HSNF40-46Z
HSNF40-46W1
HSNF40-46NZ
HSNF40-46W1Z
HSNF40-54
HSNF40-54N
HSNF40-54Z
HSNF40-54W1
HSNF40-54NZ
HSNF40-54W1Z
