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Smart Stator Technology saves time and money.
Welsh Water is one of the ten regulated water and sewerage companies in the UK, supplying drinking water and wastewater services to over three million people.
On the outskirts of Cardiff, this recently upgraded waste water treatment works has had its latest innovation successfully installed and this site alone serves a population of 240,000 residents.
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The starting situation
Despite the fact that the seepex pumps are designed to reduce the possibility of blockages occurring, sometimes this does happen due to high rag content in the sludge. This often results in long periods of down time and subsequent labour costs.
The design of a conventional progressive cavity pump means that the discharge pipe work must always be removed before the stator can be unscrewed from the rotor to clear the blockage. This mundane and often laborious work was carried out by a team of maintenance engineers which was costly and an inefficient use of their time and skills.
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The solution
seepex suggested to fit their “Smart Stator Technology“ (SST) onto one of the two pumps in operation. This would show the benefits of SST and the cost savings could be monitored more easily.
Designed to be more user friendly, this new and unique split stator design ensures that any necessary maintenance work can be completed quickly and efficiently without the need to remove the discharge pipe. Thus, SST allows the condition of both the rotor and stator to be checked whilst ‘in situ’ so that these items can be assessed to see which, if any, need to be replaced.
Existing seepex pumps have SST retrofitted very easily without the need to make any modifications to the pipework.
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The benefit
“SST is so quick and easy to remove and replace that there is now no need to call out the maintenance team, which will reduce costs and save time”. This was the claim made by seepex when their “Smart Stator Technology“ had been installed. Due to the nature of the sludge and the amount of debris present within the system, it was not too long before this claim was put to the test and found to be true. The operators managed to remove the stator, un-block the pump and replace the stator in a fraction of the time that it would have taken the maintenance team to complete the remedial work on a conventional design pump.
Apart from the obvious time and cost savings being made the operators did not have to wait for the maintenance engineers to arrive and the maintenance engineers could concentrate on maintaining equipment rather than unblocking it.
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Key Facts
- Quick and easy removal of blockages
- Pipe work remains in place
- Condition of both the rotor and stator can be inspected "in situ"
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Significant Cost Savings
- No special tools required
- Reduced maintenance time
- SST can be supplied on new pumps or retrofitted to existing pumps without any pipe modifications
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