What's new at ALLWEILER - at a glance
Monitoring vibrations, mechanical seals, and bearings for safety and performance
With more than 70 years of experience in plastics processing, Switzerland-based Quadrant Group is a leading expert in a wide range of polymer materials and technologies for polymer conversion. In order to maintain a high level of quality in the production process, Quadrant's heat-transfer pumps must work safely and reliably. These pumps are commonly subjected to high loads. At the same time, failure of a pump can have serious consequences, especially if hot oil escapes. The high loads on the pump are the result of high temperatures and large temperature differentials as well as decomposition reactions that may occur when the heat transfer liquid is subjected to excessive thermal loads.
Pumps for synthetic heat-transfer liquids
As soon as the temperature in a heat-transfer system becomes too high for water, a plant operator must choose between petroleum-based or synthetic oils as the heat-transfer liquid. When modern petroleum oils are used, systems with feed temperatures up to about 300 °C can stay in service for their entire service life with one filling and with virtually no maintenance. Once feed temperatures rise above 300 °C, only high-quality synthetic oils will be appropriate. Under these conditions, even minor temperature increases will have a decisive effect on the service life of the oils. An additional 10 °C commonly doubles the product's specific rate of decomposition. When compared to petroleum-based heat-transfer oils, the amount of maintenance associated with synthetic oils is significantly lower.
Pumps are the heart of heat-transfer plants
Manufacturers in a variety of industries depend on heat-transfer plants to heat or cool their machines and apparatus. German firm heat11 GmbH & Co. KG specializes in heat-transfer plants of virtually all types. The chemical industry uses their installations for controlling the temperature of reactors and during the production of color pigments and liquid crystals. In the plastics industry, heat-transfer plants are essential for producing polyethylene terephthalate (PET) and in the production of CDs and DVDs. But recently, according to heat11’s Managing Director Dietmar Hunold, heat recovery has become an increasingly important application.
Peristaltic pumps for moving filtration water
The Eversburg sewage treatment plant is designed to serve 250,000 population equivalents. But in 2005, its actual load was closer to 309,000 population equivalents (COD 80 mg/l), pushing the nitrogen input level above the plant's capabilities.
To deal with this situation, engineer Peter Sikora organized a team to develop a process-based alternative to biological elimination of nitrogen. The pumps moving filtration water into the nitrogen elimination plant are a critical aspect of the concept. In 2006, the plant began using Allweiler peristaltic pumps as an alternative to the centrifugal pumps from another manufacturer.
Temperature and leak monitoring boosts safety and reliability
Amcor Flexibles Singen GmbH is a manufacturer of printed and unprinted aluminum-based packaging materials and an experienced technical applications specialist. High-performance drying equipment is essential for Amcor’s production process. Having centralized thermal oil pumps that operate safely and dependably is critical for the drying process.
Flexibility is key: Screw pumps in oil-supply systems
Flender AG, a subsidiary of Siemens AG, has been using screw pumps from Allweiler AG for more than 25 years. Flender’s plant in Voerde, Germany (in the industrialized Ruhr region) manufactures gear units for extruder systems and vertical mills. The pumps supply the gear units with oil that is needed both for lubrication and for cooling. Large vertical mills require as much as 2000 l/min in order to achieve the required cooling capacity of 400 to 500 kW. In extruder gear units, pump capacity is usually 1200 l/min and cooling capacity is approximately 600 kW.
Progressing cavity pumps for pumping chemically aggressive liquids during biodiesel production
Progressing cavity pumps reflect an established design with decades of usage in many industries and applications. Production of biodiesel and biogas is a relatively new application where progressing cavity pumps are increasingly utilized. In the past several years, Allweiler AG has supplied pumps for a large number of biodiesel plants. In addition to fulfilling the two requirements mentioned above, this manufacturer has another major advantage: it produces its stators in-house at its own plant. This allows them to select from up to 20 different materials as needed, while also having the ability to produce stators in common dimensions and materials quickly and economically. These capabilities have proven to be extremely valuable for serving the German-Austrian firm PPM GmbH.
Durable ALLWEILER pumps for biogas engineering
ALLWEILER AG’s Bottrop plant specializes in manufacturing progressing cavity pumps and peristaltic pumps. These products are capable of pumping virtually any liquid, including those that are chemically aggressive or mechanically abrasive. They can even handle fibrous additives during continuous operation. ALLWEILER pumps ensure long maintenance intervals, minimal production interruptions, and a low Total Cost of Ownership. Marchfelder BioEnergie GmbH uses ALLWEILER pumps in the production of biogas from organic waste.
Progressing cavity pumps in the production of dry pet food
Progressing cavity pumps from Allweiler AG have been standard equipment in food and beverage production for many decades.Mera Tiernahrung GmbH, a German pet food manufacturer, selected these pumps in 2004 for use in a new plant. They had had good experiences with progressing cavity pumps in their old plant, and their plant builder was also quick to recommend them. Mera uses a variety of plant and animal-based raw materials to produce high-quality dog and cat food at their highly advanced production plant. The company's motto is "Five stars for four legs".
Problem-free pumping of crystal mush with Allweiler progressing cavity pumps
The Chemische Fabrik Budenheim KG (CFB) (Chemical Factory Budenheim) produces precursors and ingredients for a wide range of a variety of final products. CFB has developed its own solutions and processes in order to crystallize various phosphates and to dry it afterwards. In this process the pumps play a central role in pumping the crystal mush from the preparation tanks into the rotary pipe, and with that, for further processing. The crystal mush is highly abrasive, very viscous and in part very hot. In the food and beverages industry progressing cavity pumps from Allweiler AG have for decades been part of the standard production equipment.
Allweiler Peristaltic Pumps: An ingenious solution for biogas plants
Installations and plants used to process biomass for the production of biofuels must be capable of handling difficult conditions. For example, intermediate products in the production of biodiesel exhibit a high level of chemical aggressiveness. In addition, waste products usually contain a large amount of impurities that can disturb the overall process. Allweiler AG in Germany , a member of the Colfax Corporation, provides pumps that are ready to handle these situations. Allweiler's extensive experience, innovative technologies, and customer-oriented product development ensure that its customers have the appropriate solution for their applications, whether pumping biofuels or organic waste.
Pumps for bitumen and wax
Moving and processing petroleum-based products involves special challenges. Pumps used in this activity must be capable of moving liquids that have very good lubricating properties as well as liquids containing abrasive components. Depending on the particular process step, high discharge pressure or high capacity may be needed. Finally, viscosity of the pumped liquid can vary from finished, flowing petroleum products to highly viscous liquids like bitumen.
At Nyrosten Korrosionsschutzmittel GmbH & Co. of western Germany, Allweiler’s screw pumps have been in continuous service for decades.
Pumps used during tunnel construction: Long service life is crucial
"Years of reliability is our first priority," according to engineer Albert Feisst, the director of liquid engineering who is responsible for all pumps used in Herrenknecht AG tunnel boring machines. Headquartered in southwest Germany, Herrenknecht is a global market leader in its industry. For more than 30 years, pumps from Allweiler AG have played a key role in these machines. Some tunnel boring machines are the size of a house and contain nearly every type of pump manufactured by Allweiler AG.
Allready-Box brings security to production of bioenergy
Animal feed manufacturer Futtertrocknung Mindelheim eG of southern Germany has been operating a co-generation power station since 2008. This system gives the Mindelheim animal feed company the most modern and efficient process available for producing power in a co-generation biomass plant.
The heart of the power plants are thermal oil pumps from Allweiler AG, a pump manufacturer based in Radolfzell, Germany . These pumps feed hot oil at temperatures up to 350 °C into a heat exchanger where the silicon oil is heated to the point of vaporization. Having centralized thermal oil pumps that are safe and dependable is critical for maintaining reliable energy production.
Pumps in lubricant production
A major business segment at Hermann Bantleon GmbH is the development, production, and sales of lubricants. At its plant in Ulm, Germany, this company starts with high-quality base oils and produces both universal and customized lubricants according to its own formulas. Customized products are often the best way to meet special requirements in cutting and non-cutting production processes. Pumps of several different types and sizes play a major role in the manufacturing processes at Bantleon. For nearly 30 years, this company has relied on Allweiler AG of Radolfzell, Germany for the pumps it needs.
Allweiler pumps in exhaust gas treatment systems in ships
As environmental regulations become more stringent, waste gas treatment systems are growing in importance. H+H Umwelt- und Industrietechnik GmbH of central Germany has been using Allweiler progressing cavity pumps as a core component of these systems since 2003. The company has been manufacturing catalytic waste gas treatment systems since 1998.
Joint German-Polish sewage plant satisfied with Allweiler pumps after 12 years
In May 2010 the Gubin sewage plant celebrated its twelf-year anniversary. This plant processes wastewater from the cities Guben and Gubin, located on opposite sides of the Neisse River. It is the only German-Polish project of this type to operate successfully for the long term. Major elements of the plant include 17 progressing cavity pumps and two macerators from Allweiler AG.