Posts Tagged ‘wear’

Durit: Increasing wear protection, reducing maintenance costs

Thursday, June 25th, 2015 von admin

DuritImage_2015_04Pumping of abrasive slurry or chemical reagents demand for maximum efficiency and work pace increasing wear of the applied components and thus all associated maintenance costs in pump technology as well. More and more frequently, seal and packing rings of pumps are made of ttungsten carbide – a sinter material. Additional fields of application for tungsten carbide components in pump engineering include

  • rotors,
  • control elements,
  • bearing sleeves,
  • plain bearings,
  • and hubs,

which are exposed to abrasive media.
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Atlas Copco: Small pump range for the American market with 60Hz variants

Monday, February 10th, 2014 von admin

New additions to the Weda electric submersible pumps range are 1 HP and under, c-UL-us approved, 60Hz single-phase drainage, sludge and residual pumps. They come in two voltage variants, 115V and 230V, and join the 50Hz range.  Each of the Weda electric submersible pumps is now available in a 50Hz and a 60Hz version. The range consists of the Weda 04 and Weda 08 drainage pumps, the Weda 04B residual pump and the Weda 04S and 08S sludge/trash pumps.

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Automatic recirculation valve

Thursday, February 2nd, 2012 von admin

The SSV, a special automatic recirculation valve, automatically protects centrifugal pumps – especially boiler feed water pumps – against wear and damage, as can occur if the pump runs dry or during low-load operation. Typical damages are for example a temperature increase, which can lead to partial evaporation of the medium, or recirculation in the impeller. It can also lead to flow separation and cavitation in the pump. Similarly, increased vibration and mechanical stresses occur in the pump and cause damage. The SSV bypass control valve opens as soon as the process flow demand falls to the same level as the minimum flow required by the pump. In this way, the specified minimum continuous flow required by the pump is maintained, even if there is zero process flow demand.
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Pump technology for water supply

Tuesday, January 31st, 2012 von admin

Rovatti SNE serie

Covering a wide range of centrifugal pumps for surface and submersible installations, Rovatti pumps are designed and manufactured for potable and industrial water supplies, irrigation, industrial and domestic sewage and waste, drainage, washing, fire fighting and artificial snow making, to name but a few. Among the latest and most significant achievements resulting from the Corporate commitment, it is important to highlight the latest developed production, certainly at the forefront of pumping technology. First of all the enlargement of both AISI 316 casted stainless steel borehole pumps Extreme series and the E series.

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