Reliable, Durable Aseptic Process Pump Makes Key Contribution to Success

The Swiss subsidiary of Dutch firm DSM Nutritional Products AG uses the spray drying methodology when producing vitamin and carotenoid powders for the pharmaceutical and food industries. The procedure uses pump know-how to convey various emulsions into a sprig tower, the place they are dried into powder. But the feed and booster pump that was being used proved to be an uncertainty factor because the diaphragm required for the pumping course of tended to tear when the pump was started up. Generally, such manufacturing interruptions can be corrected via quick maintenance and repair work.
However, it is very expensive to switch a diaphragm or an entire system. DSM was looking for an alternate and eventually made a discover after they talked to the pump consultants at Lewa Nikkiso Switzerland, who really helpful a Lewa triplex course of diaphragm pump for the spray tower software. The drive unit includes a safe start-up mode that retains the diaphragm positioned in the neutral position, and steady regulation using an integrated monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it is straightforward to fulfill the meals industry’s stringent hygienic provisions.
“Pump expertise plays a central position in drying oil-in-water emulsions for the meals and pharmaceutical industries. These emulsions contain substances corresponding to nutritional vitamins, carotenoids, or polyunsaturated fatty acids as active components,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As part 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 previous system, the risk of unexpected interruptions to this process couldn’t be dominated out. As a result, the completely different emulsions could not be processed additional. In different words, it was not potential to dry them into powder. The pump diaphragm was the explanation: it was often too delicate to withstand the stress positioned on it when beginning up the pump and would rupture. Replacing the diaphragm decreased the system’s service life and generally meant that trouble-free operation could not be guaranteed.
In the course of searching for a dependable alternative, DSM got in touch with the Swiss subsidiary of pump producer Lewa.
“We had been already conversant in Lewa Nikkiso Switzerland as a provider of strong systems with lengthy service lives in the SFP sector. To guarantee trouble-free spray drying, we thought it might be smart to affix forces with the specialists from Lewa and give you a design to unravel the technical issues,” says Ibald.
DSM is committed to repeatedly improving its processes and investing in expertise. This dedication, together with prior expertise with the short service lives of the previous pumps, led DSM to place particular give consideration to reliable function and a strong design in the course of the project planning part. The listing of requirements additionally included a substantial variety of stringent hygienic provisions that needed to be fulfilled.
“Certain foods have provisions regarding microbiological purity that are many times more stringent than these for producing other meals merchandise,” explains Ibald. “This meant that the brand new feed and booster pump needed to meet these more difficult circumstances and each sort of contamination had to be ruled out to produce the widest potential number of merchandise on the system.”
Royal DSM is a world science-oriented company that’s particularly active within the areas of diet, health, and sustainable residing. DSM’s mission is to enhance the lives of all. Products and solutions from DSM address a number of the world’s biggest challenges whereas concurrently creating financial, environmental, and societal worth for all its stakeholders—including customers, employees, shareholders, and society at large.
DSM delivers revolutionary options for the nutrition, animal vitamin, personal care and aromatics, medical merchandise, environmentally pleasant merchandise and applications, as properly as new mobility and interconnectivity.
DSM and its affiliated firms employ more than 23,000 individuals 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.
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After a go to at the company premises to contemplate the spatial and technical parameters, Lewa Nikkiso Switzerland recommended a kind G3F triplex course of diaphragm pump for the spray tower application. This pump features a fully secure start-up operation, since a spring repeatedly holds the built-in sandwich diaphragm situated in a impartial place.
This protects the diaphragm towards incorrect positioning and prevents it from being damaged while the pump is starting up, rising system availability substantially. And the Lewa triplex is controlled utilizing a strain reduction valve that’s installed within the hydraulic half and can be configured for the specific scenario. Therefore, the pump can be tailored to totally different operational conditions in order to prevent any overloads which will arise. This ensures that the unit has a protracted service life and easy regular operation for the entire system.
In addition to the pressure aid valve and the spring control, the design of the diaphragm additionally plays an important role in ensuring reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms which are extremely long-lasting. They are linked to one another via positive interlocking in the course of the discharge stroke and mechanical force-fitting in the course of the suction stroke.
This makes the pump hermetically tight and effectively prevents exterior contamination. As a further safety feature, the DPS monitoring system from Lewa constantly displays the situation of the diaphragm. The monitoring unit promptly shows any damage to the system that results in increased strain in the diaphragm house.
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 big extent. If damage to a diaphragm is detected, manufacturing can continue with none issues as much as a deliberate maintenance stop. The elements can then be replaced shortly and simply by releasing the cassette for the meeting.
The hermetically tight design of the process diaphragm pump does extra than simply ensure dependable steady operation. It can additionally be a central element for fulfilling the stringent hygiene provisions that the spray tower utility is subject to. The Lewa triplex maintains a hermetically tight house without dynamic seals, guaranteeing utterly clear and aseptic production conditions. 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 may be cleaned in place (CIP) using totally different alkaline and acidic agents and with out prior dismantling, it is attainable to satisfy the particular requirements for baby meals as nicely. The provisions for baby food are 1,000 occasions extra stringent than those for other merchandise in the meals sector. Thanks to the hermetically tight design, electropolishing, and CIP cleaning, we have been able to rule out any contamination of the pumped medium and clearly meet the required hygiene commonplace.
The first quote was obtained in June of 2018 and in September of the same year, DSM Nutritional Products AG positioned an order for the triplex process diaphragm pump. In operation since April 2019, the pump has become an indispensable part of production at the plant in Sisseln.
“In every phase of the challenge, Lewa Nikkiso Switzerland demonstrated fast response times and well-founded expertise, which made a key contribution to implementing the venture efficiently,” says Ibald. “Our specs with regard to quality, robustness, and hygiene had been adopted to the letter on this project. As a end result, our production has turn into noticeably extra environment friendly and reliable.”
Lewa develops technologies and provides solutions for the vast array of purposes among its prospects. Its products are used mainly in the oil and gas business, in fuel odorization, in refineries and petrochemicals, in addition to within the manufacturing of plastics, detergents, and cleaners. เกจ์วัดความดัน embody the chemical trade, cosmetics industry, prescribed drugs and biotechnology, meals and beverage trade, and energy utilities. For more data, visit

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