malfunction | the reason | Corrective Action |
Centrifugal pump can not play the liquid | Pump can not be started (Loose or damaged packing leaking air into suction port) | Tighten the packing or replace the packing and start the pump |
Chemical pump delivery liquid volume is not enough | Air leaks into stuffing box | Check if the stuffing box is leaky during operation: If it is tight after it has been leaked, a new packing is required; or if the sealing ring is clogged or in the wrong place, it should be aligned with the sealing liquid connector; or the sealing liquid line is blocked; or the shaft or shaft below the packing The cover is scratched and the air drawn into the pump |
Filler damage | Replace packing Check shaft or sleeve surface roughness | |
Insufficient pump pressure | Filler damage | Replace packing Check shaft or sleeve surface roughness |
Pump to work for a period of time to stop working | Air leaks into stuffing box | Replace packing Check shaft or sleeve surface roughness |
Pump power consumption | The packing is too tight | Relax gland, re-tighten, keep leaking fluid, if not, should check the packing, shaft or sleeve |
Pump packing leaks seriously | Filler damage | Replace worn packing, replace packing due to lack of lubricant |
Wrong form of packing | Replacing improperly installed packing or improper packing, changing to a suitable packing for conveying the liquid | |
Shaft or sleeve is scratched | On the lathe and processing correct, smooth or replace it | |
Stuffing box overheated | The packing is too tight | Relax to reduce the compression pressure on the gland |
Filler no lubrication | Reduce the gland pressing force. If the packing is damaged or damaged it should be replaced | |
Filler type is not suitable | Check pump or packing manufacturer filler type is correct | |
There is not enough cooling water in the jacket | Check if the fluid line valve is open or the line is clogged | |
Filler improperly filled | Refill the packing | |
Filler wear too fast | Damaged or scratched shaft or bushing | Re-machining or replacement |
Insufficient lubrication or lack of lubrication | Refill the packing and check that the packing leaks to the allowable value | |
Filler improperly filled | Correct installation, make sure that all old packing has been removed and the stuffing box has been cleaned | |
Filler type is wrong | Check pump or packing manufacturer filler type is correct | |
External sealing liquid line with pulse pressure | Eliminate the cause of the pulse |
malfunction
the reason
Corrective Action
Centrifugal pump can not play the liquid
Pump can not be started (Loose or damaged packing leaking air into suction port)
Tighten the packing or replace the packing and start the pump
Chemical pump delivery liquid volume is not enough
Air leaks into stuffing box
Check if the stuffing box is leaky during operation: If it is tight after it has been leaked, a new packing is required; or if the sealing ring is clogged or in the wrong place, it should be aligned with the sealing liquid connector; or the sealing liquid line is blocked; or the shaft or shaft below the packing The cover is scratched and the air drawn into the pump
Filler damage
Replace packing Check shaft or sleeve surface roughness
Insufficient pump pressure
Filler damage
Replace packing Check shaft or sleeve surface roughness
Pump to work for a period of time to stop working
Air leaks into stuffing box
Replace packing Check shaft or sleeve surface roughness
Pump power consumption
The packing is too tight
Relax gland, re-tighten, keep leaking fluid, if not, should check the packing, shaft or sleeve
Pump packing leaks seriously
Filler damage
Replace worn packing, replace packing due to lack of lubricant
Wrong form of packing
Replacing improperly installed packing or incorrectly functioning packing, changing to a suitable packing for conveying liquid
Shaft or sleeve is scratched
On the lathe and processing correct, smooth or replace it
Stuffing box overheated
The packing is too tight
Relax to reduce the compression pressure on the gland
Filler no lubrication
Reduce the gland pressing force. If the packing is damaged or damaged it should be replaced
Filler type is not suitable
Check pump or packing manufacturer filler type is correct
There is not enough cooling water in the jacket
Check if the fluid line valve is open or the line is clogged
Filler improperly filled
Refill the packing
Filler wear too fast
Damaged or scratched shaft or bushing
Re-machining or replacement
Insufficient lubrication or lack of lubrication
Refill the packing and check that the packing leaks to the allowable value
Filler improperly filled
Correct installation, make sure that all old packing has been removed and the stuffing box has been cleaned
Filler type is wrong
Check pump or packing manufacturer filler type is correct
External sealing liquid line with pulse pressure
Eliminate the cause of the pulse
PE/PP-R/PERT Pipe Extrusion Machine
zhangjiagang sevenstars machinery co.,ltd , https://www.sevenstarsmachinery.com