Articles & Case Studies

seepex so much more than just a pump supplier

Posted: Thursday 7th April 2011

Seepex is increasingly working with clients not only in designing and supplying innovative pumping solutions and pumps but also in a servicing capacity. The use of seepex technical experts at all stages of the pumps life is proving highly effective in reducing costs of ownership. Uptake of seepex service packages is resulting in fewer repairs, less down time and less spare parts usage.

In 2003 when the Modgen Plant in west London was looking to upgrade sludge treatment movement processes, seepex technical experts came up with a unique solution. Four massive 7 tonne sludge surface transfer pumps were designed and manufactured to transfer 180m/hr of sludge 16 km to another treatment plant without the need for a booster station. These unique pumps are so large and built to such a high technical specification that seepex assembled a project team of over 30 spanning all departments within the Company to design, manufacture and deliver these giant pumps.

The core of the progressive cavity pumps, the rotor was manufactured from one single piece of tool steel which initially weighed 1.7 tonnes ending up at 0.7 tonnes, almost 6 metres long and with accuracies of 0.2mm. This solution was delivered in a record breaking 16 weeks from conception and since installation the pumps have been successfully pumping sludge 16 km every single day without the need for any spare parts.

The pumps are fitted with massive 250 kw energy efficient electric motors and provide a combination of flow rate and pressure unmatched worldwide.

To ensure optimum pump performance from the monstrous pumps plus the other seepex pumps on site, seepex were then asked to get involved in a service capacity to assist with planned and reactive maintenance. The maintenance package needed to be comprehensive, cost effective and reliable in order to meet the demands of running the third largest effluent treatment plant in Europe.

Initially the service contract covered just 28 of the 55 pumps but was so successful in reducing sludge pump downtime that seepex now has responsibility of all pumps and grinders at both Modgen and its sister site at Iver South. Maintenance ranges from polymer dosing pumps to the massive sludge transfer pumps.

Checks are thorough. Dry run, over pressure, wear, drive condition and efficiency are all checked on a monthly basis. As a result wear rates can be predicted and preventative interventions carried out. The outcome is that neither site has experienced any unplanned downtime since the seepex service agreements were put in place and significant costs savings enjoyed as a result.




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