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Peristaltic Pump Ideal for Abrasive Medium

One of the largest breweries in Germany had difficulties with their conventional hose pump. The medium is extremely abrasive and pump kept breaking down, causing disruption in the filter feed process. They were looking for other options and got a recommendation for a Flowrox peristaltic pump.

Application: Beverage industry, Brewery, Diatomaceous Earth / Diatomite (Kieselguhr)

Challenge: Conventional hose pump could not handle the abrasive medium

Solution: 1 Flowrox LPP-T40 peristaltic pump

Results: Fewer maintenance breaks, minimised pressure pulsation in the filter feed

Flowrox Peristaltic Pump Performs Well in Abrasive Application

Widely used in brewery filtration, kieselguhr also known as diatomaceous earth or diatomite is extremely abrasive, causing intense wear in conventional pumps. Flowrox peristaltic pump has an important advantage when it comes to handling abrasive media: it has only one wear part in touch with the medium, the rubber hose. Whenever the hose wears down, it is possible to change it fast, causing little disruption to the process.

German brewery wanted to optimize their filtration efficiency and decided to replace their conventional hose pump with a Flowrox peristaltic pump (LPP-T40) to feed kieselguhr to a pressure filter. The filter dewaters the spent kieselguhr before disposal. Since its installation in June 2005, the pump has been in continuous operation.

Another advantage of the Flowrox pump is minimising the pressure pulsation. During the filter feed, the feed line pressure increases from 0 to 7.5 bar. This pressure controls the pump speed through a frequency inverter whilst the pressure pulsation in the feed line is minimized. Filter feed time is 7-8 minutes, with a maximum flow rate of 7 m³/h (93 rpm) and a minimum flow rate of 1.5 m³/h (21 rpm).

Process conditions:

  • Filtration Cycle: 8 /h
  • Average Flow: 4 m³
  • Solids Content: 8 %
  • Temperature: 50°C
  • Operation Pressure: 0 – 7.5 bar
  • Medium: Abrasive
peristaltic pump feeds abrasive medium - Flowrox

Flowsheet: Flowrox peristaltic pump feeds extremely abrasive Diatomaceous Earth / Diatomite (Kieselguhr) to the filter.

Key benefits

Extended service intervals

Only 1 spare part is in contact with the medium

Ease of maintenance

Pump hose can be easily changed on site
testing
NOTE: Flowrox pump and valve businesses sold to Neles
NOTE: Flowrox pump and valve businesses sold to Neles