Pump retrofitting: New Lease of Life for Old Pumps

For all of the commitment of a mine’s service group to the recommended best practice in pump management, someday, encountering cases of pump component put on and tear is inevitable – a matter of when and not if. And when it does happen, part put on inhibits pump performance. It is at that time the place, timeously, mines might have to significantly consider retrofitting as a feasible possibility.
A rational business choice
In this setting, where prices of capital equipment costs are rising, replacement could additionally be a wise enterprise determination. In an advisory focused at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business decision: “Retrofitting is an excellent different to purchasing a new product and can be carried out on pumps regardless of their meant use. It is equally suitable for industrial, water supply and waste water disposal purposes in addition to for the facility provide trade.”
It is just natural for mine operators to ponder acquiring new pumps. New pump models meet modern requirements like improved vitality effectivity, compliance with new authorized necessities (relating to emissions and safety), extended service life and technology which produces working data. But Privy may not necessitate changing an outdated pump model, KSB Pumps says, as retrofitting may give an outdated pump a model new lease of life, specifically in the following ways:
Save upkeep prices
Reduce energy consumption
Achieve longer service life
Increase system availability
Comply with authorized requirements (e.g: TA-Luft, ATEX)
READ: Full-service functionality vital for reliable pump supply
Core areas in Retrofitting
The core focus areas in retrofitting are: hydraulic and mechanical modifications to the supplies, above and past adjustments to the materials.
Hydraulic modifications
Some of the hydraulic modifications could involve:
Remachining of current impellers
Installation of recent impellers for off-design situations
Optimisation of volute casing for off-design situations
Adjustment of the number of phases (on multistage pumps)
Mechanical changes
The following are a variety of the mechanical changes:
Closed bearing brackets enhance the smoothness of operation and lengthen the bearing life
Installation of mechanical seal techniques
Employment of cellular floor put on rings to enhance effectivity, rotor dynamics and dry working properties
Use of optimised supplies
The following are its a few of the supplies that a variety of the optimised supplies which might be used:
Super duplex stainless 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

Leave a Comment