malfunction the reason method Self-priming centrifugal pump no liquid  1, there is no filling pump full of start-up fluid 2, suction pipe. Out of the pipe or pump flow blockage 3, suction pipe leakage 4, suction height exceeds the allowable range 5, the use of lift more than the design lift 6, transport heat, play a sex medium 7, turned to the opposite 8, mechanical seal leakage  1 Refill liquid. (The second start you do not have to pour fluid) 2,? [Removal of impurities 3, maintenance and replacement of suction pipe 4, according to allow high suction reinstall the pump 5, re-select the pump 6, reduce suction or use to take pouring installation 7, correct turn 8, repair or replacement of mechanical seals Self-priming centrifugal pump long self-priming  1, the liquid skull skirt / span> 2, inhalation pipeline is too long 3, there are Ω-type imported pipe bending 4, the outlet submerged in liquid  1, liquid overflow down to below 40 ℃ 2, try to shorten the pipeline 3, remove all omega pipe 4, so that exports and the atmosphere Self-priming centrifugal pump flow is not enough  1, the depth of the suction tube immersion is not enough 2, the suction pipe is too thin or blocked with debris 3, impeller severe wear and tear as a serious corrosion 4, seal ring has serious wear or corrosion 5, the impeller and pump cover clearance is too large  1, increase the depth of suction tube immersion 2, for the right pipe, remove debris 3, for the new impeller 4, for a new seal ring 5, reduce the gap Self-priming centrifugal pump head is not enough 1, impeller corrosion is serious 2, the motor with the wrong 3, the impeller and pump cover clearance is too large  1, for the new impeller 2, replace the motor 3, to reduce the gap between 8 Self-priming centrifugal pump bearing overheating 1, not enough or too much lubricating oil 2, pump shaft and motor shaft is not the same heart 3, bearing damage 4, bearing quality does not match  1, the lubricating oil should be sealed chamber 30 ~ 40% 2, adjust the pump shaft and motor shaft concentric 3, for new bearings 4, for low noise bearings Self-priming centrifugal pump vibration serious 1, pump shaft and motor shaft is not the same heart 2, pump shaft bending  1, adjust, so that the pump shaft and motor shaft two hearts 2, re-axis Self-priming centrifugal pump seal leaks 1, the spring pressure is not enough 2, moving ring or static ring end corrosion, wear or scratch 3, moving bad seal corrosion deformation 4, foreign matter or medium crystal King affected the axial movement of the ring  1, adjust the amount of spring compression or change the spring 2, Repair or replace the moving ring or static ring 3, re-ring ring 4, remove the foreign body or medium crystallization Stainless steel self-priming pump motor overheated 1, the proportion of liquid into a large? 2, mechanical seal spring is too tight 3, the voltage is too low 4, the assembly quality is poor, some parts of the friction, or motor and pump pomelo different heart  1, increase the motor 2, readjust the amount of spring compression 3, increase the voltage 4, check the custom Barbara persimmon? Removal of assembly failure malfunction the reason method Self-priming centrifugal pump no liquid  1, there is no filling pump full of start-up fluid 2, suction pipe. Out of the pipe or pump flow blockage 3, suction pipe leakage 4, suction height exceeds the allowable range 5, the use of lift more than the design lift 6, transport heat, play a sex medium 7, turned to the opposite 8, mechanical seal leakage  1 Refill liquid. (The second start you do not have to pour fluid) 2,? [Removal of impurities 3, maintenance and replacement of suction pipe 4, according to allow high suction reinstall the pump 5, re-select the pump 6, reduce suction or use to take pouring installation 7, correct turn 8, repair or replacement of mechanical seals Self-priming centrifugal pump long self-priming  1, the liquid skull skirt / span> 2, inhalation pipeline is too long 3, there are Ω-type imported pipe bending 4, the outlet submerged in liquid  1, liquid overflow down to below 40 ℃ 2, try to shorten the pipeline 3, remove all omega pipe 4, so that exports and the atmosphere Self-priming centrifugal pump flow is not enough  1, the depth of the suction tube immersion is not enough 2, the suction pipe is too thin or blocked with debris 3, impeller severe wear and tear as a serious corrosion 4, seal ring has serious wear or corrosion 5, the impeller and pump cover clearance is too large  1, increase the depth of suction tube immersion 2, for the right pipe, remove debris 3, for the new impeller 4, for a new seal ring 5, reduce the gap Self-priming centrifugal pump head is not enough 1, impeller corrosion is serious 2, the motor with the wrong 3, the impeller and pump cover clearance is too large  1, for the new impeller 2, replace the motor 3, to reduce the gap between 8 Self-priming centrifugal pump bearing overheating 1, not enough or too much lubricating oil 2, pump shaft and motor shaft is not the same heart 3, bearing damage 4, bearing quality does not match  1, the lubricating oil should be sealed chamber 30 ~ 40% 2, adjust the pump shaft and motor shaft concentric 3, for new bearings 4, for low noise bearings Self-priming centrifugal pump vibration serious 1, pump shaft and motor shaft is not the same heart 2, pump shaft bending  1, adjust, so that the pump shaft and motor shaft two hearts 2, re-axis Self-priming centrifugal pump seal leaks 1, the spring pressure is not enough 2, moving ring or static ring end corrosion, wear or scratch 3, moving bad seal corrosion deformation 4, foreign matter or medium crystal King affected the axial movement of the ring  1, adjust the amount of spring compression or change the spring 2, Repair or replace the moving ring or static ring 3, re-ring ring 4, remove the foreign body or medium crystallization Stainless steel self-priming pump motor overheated 1, the proportion of liquid into a large? 2, mechanical seal spring is too tight 3, the voltage is too low 4, the assembly quality is poor, some parts of the friction, or motor and pump pomelo different heart  1, increase the motor 2, readjust the amount of spring compression 3, increase the voltage 4, check the custom Barbara persimmon? Removal of assembly failure
