Solving the problem of reciprocating pump packing life
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Three-cylinder reciprocating pump, medium: methanol solution. The packing seal does not last long – at least one week, and at most 20 days; maintenance is quite troublesome. Do you have any good suggestions for addressing the issue of filler seal lifespan? Should new technical packing be chosen, or should the plunger cooling be improved, or should the stuffing box be modified? If anyone knows, please let me know~ Thank you~
The service life of a packing seal is related to the packing. It is also related to the plunger; our packing materials include carbon fiber and polyimide, while the plunger is made of A4 material, which gives it a service life of 2–3 months. It also depends on the load of the pump; we do not overload it.
The service life of the packing in a reciprocating pump is primarily determined by the compression force: too much pressure leads to severe wear of the packing (and may also damage the piston rod), while too little pressure results in leakage of the medium. Apply an appropriate clamping force, while selecting the right sealing filler (based on the medium, as well as temperature and pressure conditions)
Seek the assistance of AIG’s technical staff to help with the selection; use high-quality fillers – they may be more expensive, but they last longer over time. We used it in ordinary slurry pumps, and the results were good.
The estimated flow rate is extremely high; otherwise, it’s still better to choose our metering pump； Without these troubles, and it has low power consumption.