Pump retrofitting: New Lease of Life for Old Pumps

For all the dedication of a mine’s service group to the recommended best practice 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 happen, element wear inhibits pump efficiency. It is at that time where, timeously, mines might have to significantly think about retrofitting as a possible possibility.
A rational business choice
In this surroundings, where costs of capital tools prices are increasing, substitute could also be a wise enterprise determination. In an advisory targeted at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational enterprise determination: “Retrofitting is a superb various to buying a new product and may be performed on pumps regardless of their supposed use. It is equally appropriate for industrial, water supply and waste water disposal applications as well as for the facility supply industry.”
It is simply natural for mine operators to ponder buying new pumps. New pump fashions meet contemporary requirements like improved energy effectivity, compliance with new legal necessities (relating to emissions and safety), prolonged service life and technology which produces operating data. But เกจวัดแรงดันpsi will likely not necessitate replacing an outdated pump model, KSB Pumps says, as retrofitting may give an previous pump a new lease of life, particularly within the following ways:
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 capability 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 changes to the supplies.
Hydraulic modifications
Some of the hydraulic modifications could involve:
Remachining of current impellers
Installation of recent impellers for off-design conditions
Optimisation of volute casing for off-design conditions
Adjustment of the variety of levels (on multistage pumps)
Mechanical changes
The following are a variety of the mechanical modifications:
Closed bearing brackets enhance the smoothness of operation and prolong the bearing life
Installation of mechanical seal systems
Employment of mobile surface wear rings to improve effectivity, rotor dynamics and dry working properties
Use of optimised supplies
The following are its a few of the materials that some of the optimised materials which could be used:
Super duplex chrome steel grades or nickel alloys
Ceramic mineral castings for impellers, put on plates, cowl and casing – to be used with finely dispersed, extremely abrasive solutions
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings

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