Reliable, Durable Aseptic Process Pump Makes Key Contribution to Success

The Swiss subsidiary of Dutch company DSM Nutritional Products AG makes use of the spray drying technique when producing vitamin and carotenoid powders for the pharmaceutical and food industries. The procedure makes use of pump know-how to convey numerous emulsions into a sprig tower, the place they’re dried into powder. But the feed and booster pump that was being used proved to be an uncertainty issue as a outcome of the diaphragm required for the pumping process tended to tear when the pump was began up. Generally, such production interruptions could be corrected by way of quick maintenance and repair work.
However, it is extremely expensive to exchange a diaphragm or a complete system. DSM was seeking an alternative and eventually made a discover when they talked to the pump consultants at Lewa Nikkiso Switzerland, who recommended a Lewa triplex process diaphragm pump for the spray tower utility. The drive unit features a safe start-up mode that keeps the diaphragm situated in the neutral position, and continuous regulation using an built-in monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it is easy to satisfy the meals industry’s stringent hygienic provisions.
“Pump technology performs a central function in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions include substances such as vitamins, carotenoids, or polyunsaturated fatty acids as lively elements,” explains Natalie Ibald, plant supervisor of formulations at DSM Nutritional Products AG. “As a half of the process chain, each 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 danger of unexpected interruptions to this course of couldn’t be dominated out. As a end result, the completely different emulsions could not be processed further. In other phrases, it was not attainable to dry them into powder. The pump diaphragm was the reason: it was typically too delicate to withstand the stress placed on it when starting up the pump and would rupture. Replacing the diaphragm decreased the system’s service life and sometimes meant that trouble-free operation couldn’t be assured.
In the course of looking for a dependable different, DSM obtained in contact with the Swiss subsidiary of pump manufacturer Lewa.
“We were already conversant in Lewa Nikkiso Switzerland as a provider of robust techniques with long service lives in the SFP sector. To ensure trouble-free spray drying, we thought it would be good to hitch forces with the experts from Lewa and come up with a design to unravel the technical problems,” says Ibald.
DSM is dedicated to continually improving its processes and investing in know-how. This dedication, along with prior expertise with the quick service lives of the earlier pumps, led DSM to position particular concentrate on dependable function and a sturdy design in the course of the project planning phase. เกจวัดแรงดันอากาศ of requirements also included a substantial number of stringent hygienic provisions that had to be fulfilled.
“Certain meals have provisions concerning microbiological purity that are many times extra stringent than those for producing other food merchandise,” explains Ibald. “This meant that the new feed and booster pump needed to meet these more difficult situations and every sort of contamination needed to be dominated out to provide the widest possible number of merchandise on the system.”
Royal DSM is a global science-oriented company that’s especially lively in the areas of diet, well being, and sustainable residing. DSM’s mission is to improve the lives of all. Products and solutions from DSM tackle some of the world’s biggest challenges whereas concurrently creating economic, environmental, and societal value for all its stakeholders—including prospects, employees, shareholders, and society at large.
DSM delivers progressive solutions for the nutrition, animal vitamin, private care and aromatics, medical products, environmentally friendly merchandise and applications, as well as new mobility and interconnectivity.
DSM and its affiliated companies employ more than 23,000 folks and generate an annual internet turnover of approximately 10 billion euros. The firm was based in 1902 and is listed on the Euronext Amsterdam inventory change.
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After a visit on the firm premises to consider the spatial and technical parameters, Lewa Nikkiso Switzerland really helpful a type G3F triplex course of diaphragm pump for the spray tower application. This pump contains a fully secure start-up operation, since a spring continuously holds the integrated sandwich diaphragm situated in a neutral position.
This protects the diaphragm in opposition to incorrect positioning and prevents it from being damaged while the pump is beginning up, increasing system availability substantially. And the Lewa triplex is controlled utilizing a strain reduction valve that’s put in within the hydraulic part and may be configured for the precise scenario. Therefore, the pump could be adapted to completely different operational situations in order to prevent any overloads which will arise. This ensures that the unit has an extended service life and smooth regular operation for the complete system.
In addition to the strain aid valve and the spring management, the design of the diaphragm also plays an important role in ensuring dependable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms that are extraordinarily long-lasting. They are related to each other via constructive interlocking during the discharge stroke and mechanical force-fitting in the course of the suction stroke.
This makes the pump hermetically tight and effectively prevents external contamination. As a further safety characteristic, the DPS monitoring system from Lewa continuously displays the situation of the diaphragm. The monitoring unit promptly displays any injury to the gadget that leads to elevated stress in the diaphragm space.
This makes it possible to carry out preventive maintenance and repair work before the diaphragm even begins to rupture and doubtlessly contaminates the pumped fluid. Thus, it’s usually unnecessary to change the pump off right away, which signifies that neither the pumping course of nor spray drying are negatively impacted to a significant extent. If harm to a diaphragm is detected, production can proceed with none issues up to a deliberate upkeep stop. The elements can then get replaced quickly and simply by releasing the cassette for the meeting.
The hermetically tight design of the process diaphragm pump does more than simply ensure reliable continuous operation. It is also a central element for fulfilling the stringent hygiene provisions that the spray tower software is subject to. The Lewa triplex maintains a hermetically tight house without dynamic seals, guaranteeing fully clean and aseptic manufacturing circumstances. All pump heads that come into contact with the product are also electropolished, which makes it attainable to ensure FDA-compliant pump operation.
Because the pump may be cleaned in place (CIP) using different alkaline and acidic agents and with out prior dismantling, it’s attainable to fulfill the special necessities for child meals as properly. The provisions for baby food are 1,000 instances extra stringent than those for different products within the meals sector. เพรสเชอร์เกจคือ to the hermetically tight design, electropolishing, and CIP cleansing, we had been able to rule out any contamination of the pumped medium and clearly meet the required hygiene normal.
The first quote was received in June of 2018 and in September of the identical 12 months, DSM Nutritional Products AG positioned an order for the triplex process diaphragm pump. In operation since April 2019, the pump has turn out to be an indispensable a half of manufacturing on the plant in Sisseln.
“In each section of the venture, Lewa Nikkiso Switzerland demonstrated fast response times and well-founded expertise, which made a key contribution to implementing the venture successfully,” says Ibald. “Our specs with regard to high quality, robustness, and hygiene had been followed to the letter in this venture. As a end result, our production has become noticeably more environment friendly and dependable.”
Lewa develops applied sciences and offers solutions for the huge array of functions among its prospects. Its products are used primarily in the oil and fuel business, in gas odorization, in refineries and petrochemicals, in addition to in the production of plastics, detergents, and cleaners. Additional software areas embody the chemical trade, cosmetics industry, prescription drugs and biotechnology, food and beverage industry, and vitality utilities. For more information, go to

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