Technical paper by Erik Solfelt:

Thanks to its simple yet innovative design, the AODD pump has proven to be able to consistently meet the demands of chemical processors while building a reputation as a go-to pumping technology where basic fluid-transfer capabilities are required. The AODD pump, which possesses a stable of notable operational characteristics, has become a first-choice technology for chemical manufacturers who are searching for a pump that meshes cost-conscious air consumption with reliable and safe production rates.

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The global hunger for oil and gas continues unabated, which means that exploration companies are striving to achieve higher and higher yields and are also increasingly developing difficult sources, such as heavy oils with an extremely high solid content. Methane from coal seams or highly viscous oil at more than 10,000 mPas are already of commercial interest today but are just as complicated to extract as oil-sand mixtures from the Sudanese desert. Conveying systems in particular have to be adapted to the media and the environment if production is to be efficient under such conditions. Netzsch Pumps & Systems has developed a multiphase pump precisely for this area of application. It can handle mixtures of oil, water and gas along with sand content, achieving flow rates of up to 600 m³/h.

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12″, 10″ and 7″ H Series versions

Flotronic Pumps’ original 10” ‘H’ Series pump was designed to meet the exacting hygiene standards of 3-A Sanitary Standards, Inc (3-A SSI) and to be used in processes where hygiene is a priority. Since the launch of the 10” pump in 2015, the range has been expanded to encompass 7” and 12” versions, both of which are 3-A SSI accredited. Pipework connection sizes are now available from 1” – 3” allowing greater flexibility.

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Energy efficiency and reducing the operating costs is important as well for user of drum pumps. With the development of the new MDx compressed air motors, Lutz has taken account of this requirement.

With the oil-free, 1000 watts air motor you can achieve the same delivery capacity with 20 % less connection pressure and 4 % less air consumption comparable to other products. The motors have a good start-up behaviour also with low pressure.

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Crane ChemPharma & Energy developed a new generation of air operated double diaphragm (AODD) pumps. The line named Depa DH is manufactured in cast stainless steel (316L). This new range will include five sizes that are certified to Atex Zone 0 and five that are certified to Atex Zone 1.

The DH pumps are developed for operations within industrial and chemical applications. Acc. a company’s information “the Depa DH pump features an optimized pump design that can improve efficiency by up to 57% and increase flow rate by up to 10%.”

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The Brenner Base Tunnel through the Alps, destined to become the longest underground railway connection in the world at a planned length of 64 kilometers, is being excavated using tunnel boring machines, or TBMs made by Herrenknecht. The TBMs contain nearly every type of pump manufactured by Allweiler, a Circor brand;

• Filter oil and cooling system pumps
• Grout pumps for ring-gap mortar injection
• Proportioning pumps with quench`
• Water pumps

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Netzsch exhibits its displacement pumps for maritime demand from 4. to 7. September 2018 in Hamburg at the SMM. These series include

• progressing cavity pumps,
• rotary lobe pumps and
• screw pumps.

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The very compact MA-C version

Allweiler will exhibit its redesigned vertical centrifugal pump solutions for ship engine rooms at SMM fair Hamburg, Germany. The innovative foot design reduces space requirements and improves operational safety.

The new compact MA-S and MA-C series are vertically installed centrifugal pumps with axial inlets and radial outlets. The S version was designed for simple and rapid assembly and disassembly of the insert unit with impeller. The C version offers the same reliability with a significantly shorter installation height, so it’s perfect for customers with severe space restrictions.

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