Pump retrofitting: New Lease of Life for Old Pumps

For all the commitment of a mine’s service staff to the beneficial greatest practice in pump administration, sometime, encountering circumstances of pump component wear and tear is inevitable – a matter of when and not if. And when it does occur, element wear inhibits pump performance. It is at that time where, timeously, mines might have to significantly contemplate retrofitting as a feasible choice.
A rational business determination
In this setting, the place costs of capital tools costs are rising, alternative may be a smart business decision. In an advisory targeted at mines and other industries, pump OEM, KSB Pumps, recommends retrofitting as a rational enterprise decision: “Retrofitting is a superb different to purchasing a model new product and may be carried out on pumps no matter their intended use. It is equally appropriate for industrial, water supply and waste water disposal applications as properly as for the ability provide trade.”
It is only natural for mine operators to contemplate acquiring new pumps. New pump fashions meet contemporary requirements like improved vitality effectivity, compliance with new authorized requirements (relating to emissions and safety), prolonged service life and know-how which produces working information. But this may not necessitate replacing an old pump mannequin, KSB Pumps says, as retrofitting could give an old pump a model new lease of life, particularly in the following methods:
Save maintenance costs
Reduce energy consumption
Achieve longer service life
Increase system availability
Comply with authorized requirements (e.g: TA-Luft, ATEX)
READ: Full-service functionality important for reliable pump provide
Core areas in Retrofitting
The core focus areas in retrofitting are: hydraulic and mechanical modifications to the supplies, above and beyond modifications to the supplies.
Report of the hydraulic modifications might contain:
Remachining of existing impellers
Installation of latest impellers for off-design situations
Optimisation of volute casing for off-design circumstances
Adjustment of the number of phases (on multistage pumps)
Mechanical adjustments
The following are a few of the mechanical modifications:
Closed bearing brackets improve the smoothness of operation and lengthen the bearing life
Installation of mechanical seal techniques
Employment of mobile floor wear rings to improve effectivity, rotor dynamics and dry running properties
Use of optimised materials
The following are its some of the materials that some of the optimised supplies which might be used:
Super duplex stainless-steel grades or nickel alloys
Ceramic mineral castings for impellers, put on plates, cowl and casing – to be used with finely dispersed, extremely abrasive options
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings

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