Pump retrofitting: New Lease of Life for Old Pumps

For all the dedication of a mine’s service group to the beneficial finest apply in pump administration, sometime, encountering cases of pump element put on and tear is inevitable – a matter of when and not if. And when it does occur, component put on inhibits pump performance. It is at that point the place, timeously, mines could have to significantly consider retrofitting as a feasible possibility.
In this surroundings, the place costs of capital equipment prices are increasing, alternative could additionally be a wise business choice. In an advisory focused at mines and different industries, pump OEM, KSB Pumps, recommends retrofitting as a rational business determination: “Retrofitting is a wonderful different to purchasing a brand new product and could be carried out on pumps regardless of their supposed use. It is equally suitable for industrial, water provide and waste water disposal purposes in addition to for the power supply industry.”
It is simply pure for mine operators to ponder buying new pumps. New pump models meet contemporary necessities like improved energy efficiency, compliance with new legal necessities (relating to emissions and safety), extended service life and technology which produces working knowledge. But this may not necessitate changing an old pump model, KSB Pumps says, as retrofitting could give an previous pump a brand new lease of life, particularly within the following ways:
Save upkeep prices
Reduce power consumption
Achieve longer service life
Increase system availability
Comply with authorized requirements (e.g: TA-Luft, ATEX)
READ: Full-service functionality important for dependable 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 supplies.
Hydraulic modifications
Some of the hydraulic modifications could contain:
Remachining of current impellers
Installation of new impellers for off-design circumstances
Optimisation of volute casing for off-design situations
Adjustment of the variety of phases (on multistage pumps)
Mechanical changes
The following are some of the mechanical changes:
Closed bearing brackets improve the smoothness of operation and extend the bearing life
Installation of mechanical seal methods
Employment of mobile surface put on rings to enhance efficiency, rotor dynamics and dry working properties
Use of optimised supplies
The following are its a few of the supplies that a few of the optimised supplies that 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, highly abrasive options
Non-metallic rings and bushes
Ceramic plain bearings
Surface coatings