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 meals industries. The process makes use of pump know-how to convey numerous emulsions into a spray tower, where they are dried into powder. But the feed and booster pump that was getting used proved to be an uncertainty issue because the diaphragm required for the pumping process tended to tear when the pump was began up. Generally, such manufacturing interruptions can be corrected through immediate maintenance and repair work.
However, it is extremely expensive to replace a diaphragm or an entire system. DSM was in search of an alternate and eventually made a discover once they talked to the pump specialists at Lewa Nikkiso Switzerland, who recommended a Lewa triplex course of diaphragm pump for the spray tower application. The drive unit includes a protected start-up mode that retains the diaphragm located within the impartial place, and steady regulation using an built-in monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it’s straightforward to meet the food industry’s stringent hygienic provisions.
“Pump know-how plays a central function in drying oil-in-water emulsions for the food and pharmaceutical industries. These emulsions contain substances such as vitamins, carotenoids, or polyunsaturated fatty acids as lively ingredients,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As เกจวัดแรงดันไทวัสดุ of the method chain, each pump is one hundred pc integrated into the closed plant system. เพรสเชอร์เกจ4นิ้ว are used for conveying the mixtures into the spray tower.”
With the earlier system, the chance of unexpected interruptions to this process couldn’t be dominated out. As a result, the completely different emulsions couldn’t be processed additional. In other words, it was not potential to dry them into powder. The pump diaphragm was the rationale: it was usually too sensitive to resist the stress placed on it when beginning up the pump and would rupture. Replacing the diaphragm reduced the system’s service life and generally meant that trouble-free operation could not be assured.
In the course of searching for a reliable different, DSM obtained in touch with the Swiss subsidiary of pump producer Lewa.
“We had been already familiar with Lewa Nikkiso Switzerland as a provider of sturdy methods with long service lives in the SFP sector. To guarantee trouble-free spray drying, we thought it will be sensible to affix forces with the specialists from Lewa and give you a design to resolve the technical problems,” says Ibald.
DSM is committed to repeatedly enhancing its processes and investing in know-how. This dedication, along with prior experience with the quick service lives of the earlier pumps, led DSM to place special focus on dependable function and a strong design in the course of the challenge planning part. The list of requirements also included a substantial variety of stringent hygienic provisions that needed to be fulfilled.
“Certain meals have provisions regarding microbiological purity that are many times more stringent than these for producing different meals products,” explains Ibald. “This meant that the new feed and booster pump needed to meet these more difficult circumstances and each sort of contamination needed to be dominated out to produce the widest possible variety of merchandise on the system.”
Royal DSM is a global science-oriented company that’s especially energetic in the areas of vitamin, health, and sustainable living. DSM’s mission is to enhance the lives of all. Products and options from DSM tackle a number of the world’s largest challenges whereas simultaneously creating financial, environmental, and societal worth for all its stakeholders—including customers, employees, shareholders, and society at large.
DSM delivers innovative solutions for the vitamin, animal vitamin, private care and aromatics, medical products, environmentally pleasant merchandise and purposes, as properly as new mobility and interconnectivity.
DSM and its affiliated firms employ more than 23,000 people and generate an annual net turnover of roughly 10 billion euros. The firm was based in 1902 and is listed on the Euronext Amsterdam stock trade.
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After a go to at the company premises to assume about the spatial and technical parameters, Lewa Nikkiso Switzerland really helpful a type G3F triplex course of diaphragm pump for the spray tower utility. This pump includes a fully safe start-up operation, since a spring continuously holds the integrated sandwich diaphragm located in a impartial position.
This protects the diaphragm against incorrect positioning and prevents it from being damaged whereas the pump is starting up, increasing system availability substantially. And the Lewa triplex is managed utilizing a stress relief valve that is put in within the hydraulic half and can be configured for the particular scenario. Therefore, the pump could be adapted to totally different operational conditions to find a way to prevent any overloads which will arise. This ensures that the unit has an extended service life and easy common operation for the complete system.
In addition to the pressure reduction valve and the spring management, the design of the diaphragm also performs an necessary function in making certain reliable pump operation. The patented sandwich diaphragm consists of two separate PTFE diaphragms that are extremely long-lasting. They are related to each other through optimistic interlocking during the discharge stroke and mechanical force-fitting through the suction stroke.
This makes the pump hermetically tight and successfully prevents external contamination. As an additional security characteristic, the DPS monitoring system from Lewa constantly displays the condition of the diaphragm. The monitoring unit promptly displays any damage to the device that results in increased pressure within the diaphragm house.
This makes it attainable to carry out preventive maintenance and repair work earlier than the diaphragm even begins to rupture and potentially contaminates the pumped fluid. Thus, it is often pointless to change the pump off immediately, which signifies that neither the pumping course of nor spray drying are negatively impacted to a significant extent. If injury to a diaphragm is detected, production can proceed with none issues as much as a planned maintenance cease. The elements can then be replaced shortly and easily by releasing the cassette for the assembly.
The hermetically tight design of the method diaphragm pump does extra than simply guarantee dependable continuous operation. It is also a central part for fulfilling the stringent hygiene provisions that the spray tower application is topic to. The Lewa triplex maintains a hermetically tight house with out dynamic seals, guaranteeing completely clear and aseptic production conditions. All pump heads that come into contact with the product are also electropolished, which makes it possible to ensure FDA-compliant pump operation.
Because the pump could be cleaned in place (CIP) utilizing totally different alkaline and acidic brokers and without prior dismantling, it’s possible to satisfy the particular necessities for child meals as well. The provisions for child food are 1,000 occasions extra stringent than those for other products in the food sector. Thanks to the hermetically tight design, electropolishing, and CIP cleansing, we have been in a position 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 identical year, 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 part of manufacturing at the plant in Sisseln.
“In each phase of the challenge, Lewa Nikkiso Switzerland demonstrated quick response instances and well-founded experience, which made a key contribution to implementing the venture efficiently,” says Ibald. “Our specifications with regard to quality, robustness, and hygiene had been followed to the letter on this challenge. As a outcome, our manufacturing has turn out to be noticeably more efficient and reliable.”
Lewa develops applied sciences and provides options for the vast array of applications among its prospects. Its merchandise are used mainly in the oil and fuel trade, in gasoline odorization, in refineries and petrochemicals, as well as within the production of plastics, detergents, and cleaners. Additional utility areas include the chemical industry, cosmetics business, prescription drugs and biotechnology, food and beverage industry, and power utilities. For extra info, go to

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