Midoy Dakhla - Case Study

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Courtesy of Samson Pumps A/S

'On ‘paper’ our old pumps and the Samson Pumps should have about the same capacity but the reality is that the Samson Pumps have a lot more capacity than our old pumps.'

Midoy Dakhla 1

Vacuum pumps onboard our vessel works under extreme conditions. Cooling for our two pumps are done with warm sea water (20 degrees Celsius or higher) and the two pumps have to move a total of 80.000 m3 of fish and water per year. Our old pumps could not handle this and going through at least 4 pumps per year we looked around for other alternatives. The following was our main search criteria;
  1. Quality of materials used in the pumps
  2. Design of the pumps
  3. Customer service from the manufacturer
  4. Price
If the quality of the materials used in the pump is not ‘top notch’ the pumps will not last long with warm cooling water and high salt content. Stainless steel in 316 or higher was therefore a requirement.

Design requirements included shaft and bearing size, one piece impeller/shaft and a strong impeller design. After a thorough research we decided to go with Samson Pumps since they fulfilled all our criteria’s. An additional factor was that the Samson Pumps come equipped with both a vacuum release and a manual pressure release. This enables a fine tuning of the pump and also avoids running with too low a vacuum and/or too high a pressure – which both will shorten the lifespan of the pump.

On ‘paper’ our old pumps and the Samson Pumps should have about the same capacity but the reality was that the Samson Pumps have a lot more capacity than our old pumps. This has resulted in an additional bonus which is that we have cut our off-loading time down with about 30%. In theory this should give us one extra week of fishing per season.

Our new Samson Pumps have now run close to half a year and the performance is like the day we installed them. The noise level is also a lot less than our old pumps.

For us Samson Pumps was a great choice, a great experience and if we get one year out of two pumps then great but if we get two years out of two pumps (that is moving 160.000 ton of fish and water) …..then that is simply awesome – so far it looks really promising.

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