Plumbing. Heating. Conditioning. Energy Efficiency.

Grundfos pump reached the age of 47

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02 September 2011
The Grundfos pump which had been located in the scullery of Mrs Vera Hofmand Jensen’s house in Viborg, Denmark, since the summer of 1964, reached the age of 47. Until recently it was still operating and almost as fine as when it left the factory at Grundfos HQ in Bjerringbro. We are talking about one of the very last VP3501 still operating. The pump contributed to keeping the house warm as well as ensured hot water in the taps. Only in brief periods during summer it was turned off. Now it is over.
Recently Mrs Vera Hofmand Jensen received a visit from a fitter who replaced the VP3501 with an Alpha2 pump. It was not because the old pump had failed but only because her son convinced her of the good idea in saving energy by changing to a new model.
VP3500 series was manufactured from 1962 to 1968. It was the first circulator in the world with stepless regulation and from the start, Grundfos guaranteed a lifetime of at least 15 or 20 years. No one expected a lifetime of close to 50 years.
Now the pump with the production number 207932 has arrived at the Grundfos Museum, where it will be part of the permanent exhibition.
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