Product category:
Pumps, Vacuum pumps
News Release from: Larox Flowsys | Subject: Larox LPP
Edited by the Processingtalk Editorial
Team on 29 September 2006
Peristaltic pump shows reliability on
kieselguhr
The Larox peristaltic pump has been shown to reliably handle kieselguhr, (aka diatomaceous earth or diatomite) used in brewing, which is extremely abrasive, causing severe wear in conventional pumps
Widely used in brewery filtration, kieselguhr, also known as diatomaceous earth or diatomite, is extremely abrasive, causing intense wear in conventional pumps In addition to breweries, kieselguhr is used as a filtering body to clarify syrups and sugar and as a filling material in paper, paints, ceramics, soaps and detergents
This article was originally published on Processingtalk on 26 May 2008 at 8.00am (UK)
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The Larox rolling design of pump was chosen over the competition by an Aalborg-Portland Cement plant in Denmark for difficult Kiesash slurry pumping applications, where it proved very reliable
Due to its abrasive properties, there are only a few pumps that can reliably handle kielselguhr.
A Larox peristaltic pump is one of the few that can.
Made of the most durable and abrasion resistant materials, the robust Larox LPP is a safe and reliable pump even when handling the most aggressive media.
Further reading
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To optimise their filtration efficiency, Paulaner Brauerei, the largest brewery in Munich, replaced a traditional hose pump with a Larox peristaltic pump (LPP 40) to feed kieselguhr to a pressure filter which dewaters the spent kieselguhr before disposal.
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 minimised.
Filter feed time is 7-8 minutes, with a maximum flow rate of 7 m3/h (93 rpm).
The minimum flow rate is 1.5 m3/h (21 rpm).
Since its installation in June 2005, the pump has been in continuous operation.
Setting the Industry Standard.
The innovative Larox pumps set the industry standard for peristaltic pump technology.
Designed for heavy industrial duties, the LPP pump is ideal for abrasive, corrosive, viscous or crystallising media.
One compression is all you need.
A single, bearing-mounted roller presses against the hose only once per the 360 degree operating cycle, producing the maximum flow per revolution.
The operating principle of the LPP pump is based on the peristaltic effect.
As the cylindrical rotor rotates along the hose, the process medium gets pushed forward through the hose.
At the same time, the hose behind the compression point reverts to its original circular shape creating a suction effect at the pump inlet port.
As a result, the hose bore gets filled with the medium.
No backward flow can occur as the hose is squeezed tight by the roller.
Headquartered in Lappeenranta, Finland, Larox Flowsys Oy is the preferred supplier of cutting-edge flow control technology.
We focus on abrasive, corrosive and other demanding shut-off, control and pumping applications serving a wide range of process industries worldwide. Request a free brochure from Larox Flowsys ...
Our product range includes high-performance pinch valves and innovative peristaltic pumps.
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