Reliable, Durable Aseptic Process Pump Makes Key Contribution to Success

The Swiss subsidiary of Dutch firm DSM Nutritional Products AG makes use of the spray drying methodology when producing vitamin and carotenoid powders for the pharmaceutical and food industries. The procedure makes use of pump know-how to convey varied emulsions into a twig tower, the place they are dried into powder. But the feed and booster pump that was getting used proved to be an uncertainty factor as a result of the diaphragm required for the pumping course of tended to tear when the pump was started up. Generally, such production interruptions may be corrected through immediate maintenance and repair work.
However, it is rather expensive to exchange a diaphragm or a whole system. DSM was seeking another and at last made a find when they talked to the pump consultants at Lewa Nikkiso Switzerland, who beneficial a Lewa triplex process diaphragm pump for the spray tower application. The drive unit includes a protected start-up mode that keeps the diaphragm situated within the impartial position, and steady regulation utilizing an integrated monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it’s straightforward to fulfill the meals industry’s stringent hygienic provisions.
“Pump technology plays a central function in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions comprise substances similar to nutritional vitamins, carotenoids, or polyunsaturated fatty acids as energetic components,” explains Natalie Ibald, plant supervisor of formulations at DSM Nutritional Products AG. “As a part of the method chain, every pump is 100% built-in into the closed plant system. The pumps are used for conveying the mixtures into the spray tower.”
With the earlier system, the chance of unforeseen interruptions to this course of couldn’t be ruled out. As a end result, the totally different emulsions couldn’t be processed additional. In different words, it was not potential to dry them into powder. The pump diaphragm was the rationale: it was often too sensitive to withstand the stress placed on it when starting up the pump and would rupture. Replacing the diaphragm lowered the system’s service life and typically meant that trouble-free operation could not be assured.
In the course of trying to find a reliable various, DSM obtained in contact with the Swiss subsidiary of pump manufacturer Lewa.
“We had been already familiar with Lewa Nikkiso Switzerland as a provider of robust systems with long service lives in the SFP sector. To ensure trouble-free spray drying, we thought it would be smart to hitch forces with the specialists from Lewa and provide you with a design to resolve the technical issues,” says Ibald.
DSM is dedicated to continually bettering its processes and investing in expertise. This commitment, along with prior experience with the short service lives of the earlier pumps, led DSM to position special focus on reliable function and a robust design through the challenge planning part. The record of necessities also included a substantial number of stringent hygienic provisions that had to be fulfilled.
“Certain meals have provisions regarding microbiological purity that are many instances more stringent than those for producing different food products,” explains Ibald. “This meant that the new feed and booster pump needed to meet these tougher circumstances and each sort of contamination had to be ruled out to provide the widest attainable variety of products on the system.”
Royal DSM is a world science-oriented firm that’s particularly lively in the areas of diet, well being, and sustainable residing. DSM’s mission is to improve the lives of all. Products and options from DSM address some of the world’s largest challenges whereas concurrently creating economic, environmental, and societal worth for all its stakeholders—including customers, workers, shareholders, and society at giant.
DSM delivers revolutionary options for the diet, animal nutrition, private care and aromatics, medical products, environmentally pleasant products and functions, in addition to new mobility and interconnectivity.
DSM and its affiliated corporations make use of greater than 23,000 folks and generate an annual net turnover of roughly 10 billion euros. The firm was founded in 1902 and is listed on the Euronext Amsterdam stock exchange.
For more data, go to
After a visit at the company premises to consider the spatial and technical parameters, Lewa Nikkiso Switzerland beneficial a sort G3F triplex process diaphragm pump for the spray tower utility. This pump features a completely secure start-up operation, since a spring repeatedly holds the integrated sandwich diaphragm located in a neutral position.
This protects the diaphragm against incorrect positioning and prevents it from being damaged whereas the pump is beginning up, increasing system availability considerably. And the Lewa triplex is controlled using a pressure aid valve that’s installed within the hydraulic half and may be configured for the specific scenario. Therefore, the pump can be adapted to different operational situations to be able to prevent any overloads that will arise. เกจวัดแรงดันน้ำ4หุน ensures that the unit has a protracted service life and easy common operation for the entire system.
In addition to the pressure reduction valve and the spring management, the design of the diaphragm additionally plays an important function in ensuring reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms which might be extremely long-lasting. They are related to one another by way of positive interlocking in the course of the discharge stroke and mechanical force-fitting during the suction stroke.
This makes the pump hermetically tight and effectively prevents exterior contamination. As an additional security function, the DPS monitoring system from Lewa continuously displays the condition of the diaphragm. The monitoring unit promptly displays any damage to the system that results in increased stress in the diaphragm house.
This makes it attainable to hold out preventive upkeep and repair work earlier than the diaphragm even begins to rupture and doubtlessly contaminates the pumped fluid. Thus, it is normally pointless to switch the pump off right away, which means that neither the pumping course of nor spray drying are negatively impacted to a significant extent. If harm to a diaphragm is detected, manufacturing can proceed without any issues up to a planned upkeep stop. The parts can then get replaced quickly and easily by releasing the cassette for the meeting.
The hermetically tight design of the method diaphragm pump does more than just guarantee dependable steady operation. It can be a central part for fulfilling the stringent hygiene provisions that the spray tower software is topic to. The Lewa triplex maintains a hermetically tight house with out dynamic seals, guaranteeing completely clean and aseptic production circumstances. All pump heads that come into contact with the product are also electropolished, which makes it potential to ensure FDA-compliant pump operation.
Because the pump can be cleaned in place (CIP) using totally different alkaline and acidic brokers and without prior dismantling, it’s potential to satisfy the particular requirements for baby food as properly. The provisions for child food are 1,000 times more stringent than those for other products in the meals sector. Thanks to the hermetically tight design, electropolishing, and CIP cleansing, we had been in a place to rule out any contamination of the pumped medium and clearly meet the required hygiene normal.
The first quote was obtained in June of 2018 and in September of the same 12 months, DSM Nutritional Products AG positioned an order for the triplex course of diaphragm pump. In operation since April 2019, the pump has turn into an indispensable a part of manufacturing at the plant in Sisseln.
“In each section of the challenge, Lewa Nikkiso Switzerland demonstrated quick response occasions and well-founded experience, which made a key contribution to implementing the venture efficiently,” says Ibald. “Our specifications with regard to high quality, robustness, and hygiene have been followed to the letter on this venture. As a result, our production has turn out to be noticeably extra efficient and dependable.”
Lewa develops technologies and provides solutions for the huge array of applications among its prospects. Its merchandise are used primarily within the oil and gasoline industry, in fuel odorization, in refineries and petrochemicals, as well as within the production of plastics, detergents, and cleaners. Additional utility areas include the chemical industry, cosmetics trade, prescription drugs and biotechnology, food and beverage trade, and vitality utilities. For extra data, visit

Leave a Comment