This website uses cookies primarily for visitor analytics. Certain pages will ask you to fill in contact details to receive additional information. On these pages you have the option of having the site log your details for future visits. Indicating you want the site to remember your details will place a cookie on your device. To view our full cookie policy, please click here. You can also view it at any time by going to our Contact Us page.

Sponsored Article

Cat Pumps slash energy and maintenance costs at food processing plant

18 December 2013

A Cat Pumps Model 6831 high pressure pump is cutting energy and maintenance costs at a leading food processing plant in the UK.

Supplied by AESPump Limited in June 2012, the triplex positive displacement plunger pump has replaced two aging and troublesome Pitot Tube pumps used for washing filter screens and supplying high pressure wash-down hoses.

In its first year of operation, the Cat Pumps unit has reduced the energy costs from £45,200 per annum to just £13,300, and maintenance costs from £30,000 per annum to £2,800. Of equal note is that the payback period for this change-out was just 9.9 months.

To see how this considerable saving has been achieved, it necessary to review the previous pump installation before AES and Cat Pumps became involved. The original Pitot Tube pumps (one duty and one standby) had been in operation for some time supplying high pressure water from a holding tank to the filter screen pressure jets and the wash-down lances around the plant. The duty specified was 105 L/min. at 140 bar, or 6.3 m³/hr at 1,430 m, and the model installed was running at 5,900 rpm via a geared-up drive. This was fitted with a 132 kW, 3,000 rpm 415/3/50 motor complete with soft start, and was estimated as absorbing 112kW at the duty point.

Having been run for a period of time, the pumps had become increasingly unreliable and were suffering two to three failures a year. These failures were costing the food processing company an estimated £30,000 annually in parts and labour.

With annual running costs in the region of £75,200, the food company implemented a project to look into replacing these two pumps with a more reliable product. AESPump, who had been providing the processing plant with pump maintenance and plant improvement services for some seven years, was brought in to provide advice. They recommended that the Cat Pumps triplex pump would be the best solution. Being a true positive-displacement reciprocating pump, this offers excellent energy efficiency, consistent flow rate unaffected by discharge pressure, and field-proven reliability.

The Model 6831 pump was selected for an enhanced duty pressure of 160 bar at the required flow rate of 105 L/min. and a water temperature up to 45°C, achieved at a shaft speed of just 440 rpm. A further influential factor in the selection of this particular pump was the significant reduction in required footprint area. The complete skid unit was ordered, delivered to site within eight weeks from PO placement, and after initial commissioning adjustments the unit ran without incident.

After 12 months of fail-free operation, the customer wished to assess the cost-effectiveness of the pump change and elected to temporarily remove the Cat pump for a routine inspection and service, at a cost of £2,800. The energy costs were then calculated based on the running time being the same as the previous Pitot Tube pumps i.e. 48 weeks p.a. and 24/7 utilisation. At an electrical supply price of £0.05 per kWhr x 33kW absorbed, the energy usage for the new pump amounts to £13,300 per annum. Taking this together with the lower maintenance costs, the overall operating cost for the Cat pump in the first year was only £16,100, a massive reduction of £59,100. The initial investment cost of the replacement pump, inclusive of installation charges, came to £45,700. By taking this figure together with the annual running cost, it can be seen that the customer achieved a saving of £13,400 in the first year. Even more impressive is the projected saving for the second year which has been forecast at £59,000.

Cat Pumps and AESPump say that their customer has been delighted with the first year’s operation. In fact, based on the proven reliability of the Cat pump, the user has concluded it is now no longer necessary even to install a standby pump.

The success of this project is attributable to the joint efforts of both Cat Pumps and AESPump. “The maintenance costs and reduced downtime were decisive factors in our customer going with our proposition,” comments Geoff Mason, Technical Manager at AESPump. “Cat Pumps assisted us by producing a professional solution to a problematic installation. We have installed several of their units over a long working relationship and we are currently looking at several pump replacement projects throughout Europe.”


More information...

Print this page | E-mail this page


Article image CIP pumps provide hygienic solutions for Russian food plant

Watson-Marlow Fluid Technology Group (WMFTG) has supplied its Bredel CIP (clean-in-place) pumps to a sauce and condiments manufacturing plant in Russia. Full Story...

CPD accreditation for pump training

The British Pump Manufacturers Association (BPMA) has recently embarked on a process of securing CPD accreditation across its full pump training programme. Full Story...

MasoSine Certa achieves EHEDG Aseptic certification

Pump for viscous fluids pump is now easier to fit

Ensuring a constant flow for viscous products


Article image Qdos 60 attributes ideal for dosing application at French winemaker

Watson-Marlow Pumps Group has supplied Qdos 60 metering pumps to Fauchier Company, a France-based specialist in the design and manufacture of automated filtration systems.Full Story...

Article image Extension to MasoSine range of pumps ensures perfectly sized pumps for all food applications

Watson-Marlow Pumps Group (WMPG) has introduced three new models to its MasoSine range of sinusoidal pumps. Two of the new models – the SPS 250 and the SPS 500 – provide customers will an even greater choice of pump sizes for a wider range of applications.Full Story...

Waukesha Universal 1 & 2 pumps are a hit with biscuit manufacturer

AxFlow introduces Universal Centrifugal pumps from Waukesha Cherry-Burrell

Gentle action pumps for food processing


Article image Artificial intelligence in the food industry

Artificial intelligence (AI) has been heralded as the next best thing since sliced bread. But what might it really mean for the food industry and what are the implications? Stephanie Duvault-Alexandre explains. Full Story...

Article image Reduce, reuse, recover

Taking simple steps to reduce water consumption or access wastewater treatment technology can help change the way this valuable resource in managed, says Simon EmmsFull Story...

A recipe for continuous improvement success

Added value: the best way to deliver ROI

What role does refrigeration play in the supply chain?