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 meals industries. The process makes use of pump know-how to convey numerous 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 issue as a outcome of the diaphragm required for the pumping process tended to tear when the pump was started up. Generally, such production interruptions can be corrected through instant maintenance and restore work.
However, it is very costly to exchange a diaphragm or an entire system. DSM was looking for another and eventually made a discover after they talked to the pump experts at Lewa Nikkiso Switzerland, who beneficial a Lewa triplex process diaphragm pump for the spray tower application. The drive unit contains a safe start-up mode that keeps the diaphragm positioned within the neutral place, and steady regulation utilizing an built-in monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it’s easy to meet the food industry’s stringent hygienic provisions.
“Pump technology performs a central role in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions include substances such as nutritional vitamins, carotenoids, or polyunsaturated fatty acids as lively ingredients,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As a half of the method chain, every pump is one hundred pc integrated 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 process couldn’t be ruled out. As จำหน่ายเกจวัดแรงดัน , the completely different emulsions could not be processed further. In different words, it was not possible to dry them into powder. The pump diaphragm was the reason: it was often too delicate to face up to the stress positioned on it when starting up the pump and would rupture. Replacing the diaphragm lowered the system’s service life and sometimes meant that trouble-free operation couldn’t be assured.
In the course of trying to find a dependable various, DSM obtained in contact with the Swiss subsidiary of pump manufacturer Lewa.
“We had been already familiar with Lewa Nikkiso Switzerland as a supplier of strong systems with long service lives within the SFP sector. To guarantee trouble-free spray drying, we thought it might be sensible to hitch forces with the specialists from Lewa and come up with a design to resolve the technical issues,” says Ibald.
DSM is dedicated to continually enhancing its processes and investing in know-how. This commitment, together with prior expertise with the brief service lives of the earlier pumps, led DSM to place particular give attention to dependable operate and a strong design in the course of the project planning part. The list of necessities additionally included a considerable number of stringent hygienic provisions that needed to be fulfilled.
“Certain meals have provisions relating to microbiological purity which are many occasions more stringent than those for producing other meals products,” explains Ibald. “This meant that the new feed and booster pump had to meet these tougher conditions and each kind of contamination needed to be dominated out to supply the widest attainable variety of products on the system.”
Royal DSM is a worldwide science-oriented firm that’s particularly lively within the areas of vitamin, health, and sustainable residing. DSM’s mission is to enhance the lives of all. Products and solutions from DSM tackle some of the world’s biggest challenges whereas simultaneously creating financial, environmental, and societal worth for all its stakeholders—including prospects, employees, shareholders, and society at massive.
DSM delivers progressive solutions for the diet, animal nutrition, private care and aromatics, medical merchandise, environmentally pleasant merchandise and applications, as properly as new mobility and interconnectivity.
DSM and its affiliated companies employ more 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 inventory exchange.
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After a go to at the firm premises to suppose about the spatial and technical parameters, Lewa Nikkiso Switzerland recommended a type G3F triplex process diaphragm pump for the spray tower utility. This pump contains a completely safe start-up operation, since a spring continuously holds the integrated sandwich diaphragm situated in a impartial place.
This protects the diaphragm towards incorrect positioning and prevents it from being broken whereas the pump is beginning up, rising system availability substantially. And the Lewa triplex is managed utilizing a strain aid valve that is installed in the hydraulic half and can be configured for the precise scenario. Therefore, the pump can be tailored to different operational situations in order to forestall any overloads that may come up. This ensures that the unit has a protracted service life and easy common operation for the complete system.
In addition to the pressure reduction valve and the spring control, the design of the diaphragm also plays an essential position in ensuring dependable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms that are extremely long-lasting. They are connected to one another by way of optimistic interlocking during the discharge stroke and mechanical force-fitting in the course of the suction stroke.
This makes the pump hermetically tight and successfully prevents exterior contamination. As an extra safety characteristic, the DPS monitoring system from Lewa constantly monitors the condition of the diaphragm. The monitoring unit promptly displays any harm to the device that results in elevated pressure within the diaphragm space.
This makes it possible to hold out preventive upkeep and repair work before the diaphragm even begins to rupture and probably contaminates the pumped fluid. Thus, it’s often unnecessary to modify the pump off immediately, which signifies that neither the pumping course of nor spray drying are negatively impacted to a major extent. If harm to a diaphragm is detected, production can proceed without any issues as much as a deliberate upkeep stop. The parts can then get replaced shortly and easily by releasing the cassette for the assembly.
The hermetically tight design of the process diaphragm pump does extra than simply ensure reliable 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 area with out 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 make sure FDA-compliant pump operation.
Because the pump could be cleaned in place (CIP) utilizing completely different alkaline and acidic agents and with out prior dismantling, it’s possible to fulfill the special requirements for baby meals as properly. The provisions for baby meals are 1,000 occasions more stringent than those for other products in the food sector. Thanks to the hermetically tight design, electropolishing, and CIP cleansing, we have been able to rule out any contamination of the pumped medium and clearly meet the required hygiene normal.
The first quote was acquired in June of 2018 and in September of the same year, DSM Nutritional Products AG placed an order for the triplex process diaphragm pump. In operation since April 2019, the pump has turn out to be an indispensable a part of manufacturing at the plant in Sisseln.
“In each section of the venture, Lewa Nikkiso Switzerland demonstrated fast response times and well-founded experience, which made a key contribution to implementing the venture successfully,” says Ibald. “Our specs with regard to quality, robustness, and hygiene have been adopted to the letter in this challenge. As a end result, our manufacturing has turn out to be noticeably more environment friendly and dependable.”
Lewa develops applied sciences and supplies solutions for the huge array of functions amongst its prospects. Its merchandise are used mainly within the oil and gas business, in fuel odorization, in refineries and petrochemicals, in addition to within the manufacturing of plastics, detergents, and cleaners. Additional utility areas include the chemical trade, cosmetics business, pharmaceuticals and biotechnology, meals and beverage trade, and energy utilities. For more information, go to

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