Pumps offer more design features for hygienic use
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Netzsch Pumps product story
Edited by the Engineeringtalk editorial team
Oct 16, 2000
To ensure maximum cleaning before sterilisation, the inlet and outlet branches of the Netzsch Nemo Aseptic pumps join the body tangentially, creating a swirling flow along the housing wall.
Netzsch Nemo Aseptic pumps, which have been specially developed for CIP and SIP applications, incorporate a number of design features that set new standards for industries where hygiene is a vital consideration.
To ensure maximum cleaning before sterilisation, the inlet and outlet branches of the Netzsch Nemo Aseptic pumps join the body tangentially, creating a swirling flow along the housing wall.
Flow cross-sections inside the pumps are virtually identical to prevent the sudden changes in flow rate that can effect the consistency of materials.
To eliminate deposits the number of static sealing points has been reduced and crevice-free O-ring seals fitted.
These are installed "open" towards the product space.
The double-acting sterilisable mechanical shaft seal is isolated by a sterile condensate and therefore acts as a sterile interface.
To provide absolute safety against contamination from outside, all static housing seals can, if required, be supplied as sterile interfaces (for example, by steam admission).
Netzsch Nemo Aseptic pumps have been designed without pivot points - with or without dynamic seals.
Power is transmitted via a PTFE-coated flexible bar with only static O-rings, so there are no pivot gaps and no pivot abrasion.
The modular format of the Aseptic pump range allows components such rotors and feeders to be interchanged to meet the customer's exact specification for capacity and performance.
The special requirements of the food and pharmaceutical industries can also be accommodated.
Materials used in pump manufacture have been approved in accordance with appropriate international regulations, including FDA and 3A in the US, BGH in Germany and PL in Japan.
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