Pump retrofitting: New Lease of Life for Old Pumps

For all of the dedication of a mine’s service team to the recommended best apply in pump management, sometime, encountering cases of pump element put on and tear is inevitable – a matter of when and not if. And when it does occur, part wear inhibits pump efficiency. It is at that point the place, timeously, mines may have to noticeably contemplate retrofitting as a possible option.
A rational enterprise choice
In this setting, the place prices of capital equipment prices are rising, alternative could additionally be a smart business choice. In an advisory targeted at mines and other industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business choice: “Retrofitting is an excellent different to purchasing a brand new product and can be performed on pumps regardless of their meant use. เกจวัดแรงดันsumo is equally appropriate for industrial, water provide and waste water disposal applications as nicely as for the power supply business.”
It is just pure for mine operators to contemplate acquiring new pumps. New pump fashions meet contemporary necessities like improved vitality efficiency, compliance with new legal necessities (relating to emissions and safety), extended service life and expertise which produces working knowledge. But this may not necessitate replacing an old pump model, KSB Pumps says, as retrofitting may give an old pump a brand new lease of life, specifically within the following methods:
Save maintenance prices
Reduce power consumption
Achieve longer service life
Increase system availability
Comply with authorized necessities (e.g: TA-Luft, ATEX)
READ: Full-service capability vital for dependable pump provide
Core areas in Retrofitting
The core focus areas in retrofitting are: hydraulic and mechanical modifications to the materials, above and past changes to the materials.
Hydraulic modifications
Some of the hydraulic modifications may involve:
Remachining of existing impellers
Installation of new impellers for off-design circumstances
Optimisation of volute casing for off-design situations
Adjustment of the number of stages (on multistage pumps)
Mechanical adjustments
The following are some of the mechanical adjustments:
Closed bearing brackets improve the smoothness of operation and extend the bearing life
Installation of mechanical seal methods
Employment of cellular floor put on rings to enhance efficiency, rotor dynamics and dry operating properties
Use of optimised materials
The following are its a few of the materials that some of the optimised materials that could be used:
Super duplex chrome steel grades or nickel alloys
Ceramic mineral castings for impellers, wear plates, cover and casing – for use with finely dispersed, highly abrasive solutions
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings

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