Pump retrofitting: New Lease of Life for Old Pumps

For all of the dedication of a mine’s service staff to the really helpful best apply in pump management, someday, encountering cases of pump part 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 point where, timeously, mines could have to significantly consider retrofitting as a feasible choice.
A rational enterprise determination

In this environment, the place prices of capital gear costs are rising, replacement may be a sensible business determination. In an advisory targeted at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business determination: “Retrofitting is a wonderful different to buying a new product and can be performed on pumps regardless of their intended use. เครื่องมือที่ใช้วัดความดัน is equally suitable for industrial, water provide and waste water disposal applications as nicely as for the power provide trade.”

It is simply natural for mine operators to contemplate buying new pumps. New pump models meet modern necessities like improved power effectivity, compliance with new legal requirements (relating to emissions and safety), prolonged service life and know-how which produces operating knowledge. But this will likely not necessitate replacing an outdated pump mannequin, KSB Pumps says, as retrofitting could give an previous pump a new lease of life, specifically in the following ways:
Save upkeep prices

Reduce energy 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 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 materials.
Hydraulic modifications

Some of the hydraulic modifications may involve:
Remachining of present impellers

Installation of new 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 improve the smoothness of operation and lengthen the bearing life

Installation of mechanical seal methods

Employment of mobile floor put on rings to improve efficiency, rotor dynamics and dry running properties

Use of optimised materials

The following are its a number of the supplies that a variety of the optimised supplies that might be used:
Super duplex stainless steel grades or nickel alloys

Ceramic mineral castings for impellers, wear plates, cover 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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