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 methodology when producing vitamin and carotenoid powders for the pharmaceutical and food industries. The process makes use of pump technology to convey various emulsions into a twig tower, the place they’re dried into powder. But the feed and booster pump that was getting used proved to be an uncertainty issue as a result of the diaphragm required for the pumping process tended to tear when the pump was began up. Generally, such production interruptions can be corrected by way of instant maintenance and repair work.
However, it is very expensive to replace a diaphragm or a complete system. DSM was looking for an alternative and eventually made a find once they talked to the pump specialists at Lewa Nikkiso Switzerland, who recommended a Lewa triplex process diaphragm pump for the spray tower utility. The drive unit contains a protected start-up mode that keeps the diaphragm situated within the neutral position, and steady regulation using an built-in monitoring system. Since the hermetically tight pumps are electropolished and CIP-approved, it is easy to satisfy the food industry’s stringent hygienic provisions.
“Pump technology plays a central position 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 energetic components,” explains Natalie Ibald, plant manager of formulations at DSM Nutritional Products AG. “As part of the process chain, each pump is one hundred pc built-in into the closed plant system. pressure gauge 2.5 นิ้ว are used for conveying the mixtures into the spray tower.”
With the earlier system, the risk of unexpected interruptions to this process couldn’t be dominated out. As a result, the totally different emulsions couldn’t be processed further. In other words, it was not possible to dry them into powder. The pump diaphragm was the rationale: it was usually too delicate to withstand the stress placed on it when beginning 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 guaranteed.
In the course of looking for a dependable different, 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 sturdy methods with lengthy service lives within the SFP sector. To guarantee trouble-free spray drying, we thought it might be good to join forces with the consultants from Lewa and give you a design to resolve the technical issues,” says Ibald.
DSM is committed to continually improving its processes and investing in know-how. This commitment, along with prior expertise with the quick service lives of the previous pumps, led DSM to place particular give attention to reliable operate and a robust design during the venture planning part. The listing of requirements additionally included a considerable variety of stringent hygienic provisions that had to be fulfilled.
“Certain meals have provisions regarding microbiological purity which are many instances more stringent than these for producing other food products,” explains Ibald. “This meant that the brand new feed and booster pump had to meet these tougher situations and every type of contamination had to be ruled out to provide the widest potential number of merchandise on the system.”
เกจวัดแรงดันถังแก๊ส : PARTNER PROFILE
Royal DSM is a global science-oriented company that’s particularly active in the areas of vitamin, well being, and sustainable dwelling. DSM’s mission is to improve the lives of all. Products and solutions from DSM address a number of the world’s biggest challenges whereas simultaneously creating financial, environmental, and societal value for all its stakeholders—including clients, workers, shareholders, and society at giant.
DSM delivers innovative options for the vitamin, animal vitamin, personal care and aromatics, medical products, environmentally pleasant products and functions, as nicely as new mobility and interconnectivity.
DSM and its affiliated firms employ greater than 23,000 people and generate an annual net turnover of roughly 10 billion euros. The company was founded in 1902 and is listed on the Euronext Amsterdam stock exchange.
For more data, visit
After a visit on the firm premises to contemplate the spatial and technical parameters, Lewa Nikkiso Switzerland beneficial a sort G3F triplex course of diaphragm pump for the spray tower software. This pump contains a utterly secure start-up operation, since a spring constantly holds the built-in sandwich diaphragm positioned in a neutral place.
This protects the diaphragm towards incorrect positioning and prevents it from being broken whereas the pump is starting up, rising system availability considerably. And the Lewa triplex is managed using a pressure aid valve that’s installed in the hydraulic half and could be configured for the specific scenario. Therefore, the pump may be adapted to completely different operational situations so as to stop any overloads that may come up. This ensures that the unit has a long 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 additionally performs 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 linked to one another via optimistic interlocking during the discharge stroke and mechanical force-fitting through the suction stroke.
This makes the pump hermetically tight and effectively prevents external contamination. As an additional safety characteristic, the DPS monitoring system from Lewa constantly monitors the condition of the diaphragm. The monitoring unit promptly shows any harm to the gadget that leads to increased stress in the diaphragm area.
This makes it attainable to carry out preventive upkeep and restore work earlier than the diaphragm even begins to rupture and probably contaminates the pumped fluid. Thus, it is often pointless to modify the pump off instantly, 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, manufacturing can proceed without any problems as a lot as a planned maintenance cease. The parts can then get replaced rapidly and simply by releasing the cassette for the assembly.
The hermetically tight design of the process diaphragm pump does more than simply ensure dependable continuous operation. It can 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 with out dynamic seals, guaranteeing fully clear and aseptic manufacturing situations. All pump heads that come into contact with the product are also electropolished, which makes it possible to make sure FDA-compliant pump operation.
Because the pump may be cleaned in place (CIP) utilizing different alkaline and acidic agents and with out prior dismantling, it is potential to satisfy the particular necessities for child meals as properly. The provisions for child meals are 1,000 instances more stringent than those for different products in the food sector. Thanks to the hermetically tight design, electropolishing, and CIP cleaning, we had been capable of 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 identical yr, DSM Nutritional Products AG placed an order for the triplex process diaphragm pump. In operation since April 2019, the pump has turn into an indispensable part of manufacturing on the plant in Sisseln.
“In every phase of the challenge, Lewa Nikkiso Switzerland demonstrated quick response instances and well-founded experience, which made a key contribution to implementing the project efficiently,” says Ibald. “Our specifications with regard to quality, robustness, and hygiene had been followed to the letter in this venture. As a result, our production has turn into noticeably extra environment friendly and dependable.”
Lewa develops technologies and supplies options for the vast array of applications amongst its customers. Its merchandise are used mainly in the oil and gas trade, in fuel odorization, in refineries and petrochemicals, as well as in the manufacturing of plastics, detergents, and cleaners. Additional application areas include the chemical trade, cosmetics industry, pharmaceuticals and biotechnology, meals and beverage industry, and energy utilities. For extra data, go to

Scroll to Top