Product category:
Pumps, Vacuum pumps
News Release from: AxFlow | Subject: Mouvex C and S Series
Edited by the Processingtalk Editorial
Team on 05 July 2007
Sweet solution for sugar and molasses
pumping
Blackmer Mouvex have the answer to food processing pumps that can handle shear sensitive media that may contain semi-solids, as well as liquids that can have an adverse affect on mechanical seals
For such delicate handling requirements in food processing plants, Blackmer Pumps developed the Mouvex principle, this being based on the operation of an oscillating eccentric piston that produces the pumping performance of a rotary positive displacement pump However, its action is far more sensitive making it ideally suited to applications where product shear and potential mechanical seal failures are major issues
This article was originally published on Processingtalk on 2 Nov 2004 at 8.00am (UK)
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Mouvex principle.
Suitable for pumping molasses and liquid sugar, the Mouvex principle pump differs from other types of positive displacement pumps in that it does not agitate the pumped liquid.
Rather, the liquid is pumped by the eccentric movement of the oscillating piston within the pump cylinder, this being a very gentle action.
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The direct-drive design of the pump does not require either mechanical seals or magnets, so leak-free performance is assured.
The eccentric movement pump consists of a cylinder and a pumping element 'piston' mounted on an eccentric shaft.
As the eccentric shaft rotates, the piston pumping element oscillates and creates chambers within the cylinder.
This has the effect of increasing the size of the intake port and drawing fluid into the pumping chamber.
The fluid is transported to the discharge port where the size of the pumping chamber decreases.
This action squeezes the fluid out into the discharge pipework.
Capable of liquid throughputs up to 36m3/h and pressures up to 9 bar, Blackmer Mouvex C and S Series pumps provide a constant product flow that is independent of both pressure and viscosity.
This, together with the presence of automatic piston/cylinder wear adjustment, ensures full flow efficiency and high levels of product stability at all times.
In addition, the design ensures that very high levels of accuracy can be attained for volume metering and dosing.
The Blackmer Mouvex C and S series pumps, whilst employing the same operating principle, have been developed for very different application areas.
Available in both 316 stainless steel and ductile iron construction, the ATEX compliant C-Series conforms to standard 3A and the hygienic recommendations required by EHEDG.
In contrast, the S Series pump is a more compact and lightweight unit, having the transmission mechanism protected by a high-resistance elastomer sleeve that is both odourless and taste-free.
This enables the pump to meet the requirements for FDA certification (S4C and S6C).
Very much intended for food processing duties where rotary lobe pumps are frequently encountered, S Series Mouvex pumps have been designed for CIP and SIP cleaning.
The slow movement of the oscillating piston provides accurate volumetric metering and enables precise dosing and mixing for viscous or fluid products.
Being ATEX, EHEDG and FDA compliant, applications for Blackmer Mouvex pumps are many.
In other types of positive displacement pumps the shear sensitive products encountered in manufacturing present considerable problems for mechanical seals, whilst aggressive liquids contribute to premature wear of seals.
This is not the case with the Mouvex principle.
None of the wetted pumping elements rotate, thereby creating gentle, low shear forces, a requirement in many food handling processes. Request a free brochure from AxFlow ...
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