Pump retrofitting: New Lease of Life for Old Pumps

For all of the commitment of a mine’s service staff to the beneficial finest follow in pump administration, someday, encountering cases of pump part wear and tear is inevitable – a matter of when and never if. And when it does occur, part wear inhibits pump performance. It is at that time where, timeously, mines might have to noticeably contemplate retrofitting as a feasible possibility.
A rational business choice
In this environment, where costs of capital gear prices are increasing, alternative could also be a wise business determination. In an advisory targeted at mines and other industries, pump OEM, KSB Pumps, recommends retrofitting as a rational enterprise choice: “Retrofitting is an excellent various to buying a new product and may be carried out on pumps regardless of their supposed use. It is equally suitable for industrial, water supply and waste water disposal applications in addition to for the facility provide business.”
Premiere is only natural for mine operators to ponder acquiring new pumps. New pump fashions meet modern necessities like improved energy efficiency, compliance with new legal requirements (relating to emissions and safety), prolonged service life and technology which produces operating information. But this may not necessitate changing an old pump model, KSB Pumps says, as retrofitting could give an previous pump a model new lease of life, specifically within the following methods:
Save upkeep prices
Reduce power consumption
Achieve longer service life
Increase system availability
Comply with legal requirements (e.g: TA-Luft, ATEX)
READ: Full-service functionality very important for dependable pump supply
Core areas in Retrofitting
The core focus areas in retrofitting are: hydraulic and mechanical modifications to the supplies, above and beyond adjustments to the supplies.
Hydraulic modifications
Some of the hydraulic modifications might involve:
Remachining of present impellers
Installation of recent impellers for off-design situations
Optimisation of volute casing for off-design circumstances
Adjustment of the number of stages (on multistage pumps)
Mechanical adjustments
The following are a few of the mechanical adjustments:
Closed bearing brackets enhance the smoothness of operation and extend the bearing life
Installation of mechanical seal methods
Employment of cellular surface put on rings to improve effectivity, rotor dynamics and dry operating properties
Use of optimised supplies
The following are its a number of the materials that a number of the optimised supplies that could be used:
Super duplex chrome steel grades or nickel alloys
Ceramic mineral castings for impellers, wear plates, cowl and casing – to be used with finely dispersed, highly abrasive options
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings

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