Pump retrofitting: New Lease of Life for Old Pumps

For all the commitment of a mine’s service group to the recommended best follow in pump management, someday, encountering instances of pump element wear and tear is inevitable – a matter of when and never if. And when it does happen, component put on inhibits pump efficiency. It is at that point where, timeously, mines could have to noticeably contemplate retrofitting as a feasible possibility.
A rational enterprise choice

In this setting, where prices of capital equipment prices are rising, replacement could also be a sensible enterprise determination. In diaphragm seal at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational enterprise determination: “Retrofitting is an excellent different to buying a new product and could be carried out on pumps regardless of their intended use. It is equally appropriate for industrial, water supply and waste water disposal purposes as properly as for the power supply industry.”

It is just pure for mine operators to contemplate acquiring new pumps. pressure gauge octa meet up to date necessities like improved energy efficiency, compliance with new authorized requirements (relating to emissions and safety), extended service life and know-how which produces operating information. But this will not necessitate changing an previous pump mannequin, KSB Pumps says, as retrofitting may give an outdated pump a new lease of life, particularly in the following methods:
Save upkeep costs

Reduce power consumption

Achieve longer service life

Increase system availability

Comply with legal necessities (e.g: TA-Luft, ATEX)

READ: Full-service capability vital 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 existing impellers

Installation of latest impellers for off-design situations

Optimisation of volute casing for off-design situations

Adjustment of the variety of levels (on multistage pumps)

Mechanical adjustments

The following are a variety of the mechanical adjustments:
Closed bearing brackets enhance the smoothness of operation and lengthen the bearing life

Installation of mechanical seal systems

Employment of cellular floor wear rings to enhance effectivity, rotor dynamics and dry operating properties

Use of optimised materials

The following are its some of the supplies that a few of the optimised materials that might be used:
Super duplex stainless-steel grades or nickel alloys

Ceramic mineral castings for impellers, put on 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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