Replacement Analysis

Replacement analysis

Grundfos Pump Audit is our replacement analysis and is a complete diagnostic tool, focusing on your facility, your system’s energy efficiency, your pumping solutions total Life Cycle Costs, and detailed recommendations for replacement and pay-back time.

Let our Pump Audit tell you how to save energy costs
Grundfos Pump Audit is the name we give our replacement analysis, and this complete diagnostic tool developed by Grundfos is used to identify excessive energy consumption in any kind of pumping system. Our experience with pump audits shows that 30-50% of the energy consumed by pumps could be saved.

Pump Audit is a non-intrusive, four-step process. Depending on the complexity of your facility, different tools may be deployed to attain the data needed to recommend points of optimisation. Grundfos has put together a team of dedicated specialists who are the backbone of the Pump Audit. Specially trained and with years of collective experience, they know exactly the challenges you face and can discuss the most complex pump issues confidently and constructively.

Four steps to optimisation
The process starts with the Pump Audit team visiting your facility and listening to your requirements, to ensure the best possible definition of the task ahead. The next step is a comprehensive on-site visual inspection of your facility, including inspecting existing pumps, their surrounds, piping, valves and line drawings.

Then the Pump Audit team moves on to diagnostics, utilising a range of tools, tailored to the scale of your system and the requirements for analysis. The tools available include installed base checks, a pump efficiency quick check, a Pump Audit without long-term logging, and a full Pump Audit.

The measurements taken fall into three categories:

  • Countable values like flow and energy consumption
  • Analogue values like pressure, temperature, water levels, etc.
  • Incident rates such as pump on/off and valve open/closed.

The final step is the Pump Audit team’s recommendations. The evaluation report describes the conclusions of the measurements. It suggests a solution that could include reassessing the pump involved, replacing piping, re-situating the pump or using currency converters.

Proposals are supported by calculations of the savings you can make, the reduction of CO2 emissions and the payback time on any investments. You get data showing the actual performance of your pumps in your installations. And you get practical advice on what you can do about it.

Focus on Life Cycle Costs
The real cost of owning and operating a pump has to be seen over its entire service life: its Life Cycle Costs (LCC). It is now well established that the purchase price of a pump system accounts for only around 5% of the entire LCC. Service and maintenance makes up around 10%.

That means energy consumption accounts for 85% of the total cost of your pumps. And our pump audits have shown that this could be halved.

The reduced energy costs alone mean that new Grundfos pumps can pay for themselves in very little time. In each case, the pump audit report will show the exact number of months this will take, often ranging from six to 36. After that, the savings translate into pure profit for you, year after year.