screw pump Articles

  • Screw Pumps Stockholm - Case Study

    The order for renovating three screw pumps is not remarkable, but the location of Danviken Pump station however is unique: in a cave in the middle of the city of Stockholm, near the Royal Palace and City Hall. Landustrie installed three screw pumps with a diameter of 2.60 meter. Screw length 9.9 m - capacity 9720 m3/h - power 160 kW. The screw pumps are supplied with eco-friendy ...


    By Landustrie Sneek BV

  • 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 ...


    By ALLWEILER GmbH

  • 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, ...


    By ALLWEILER GmbH

  • 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. They can ...


    By ALLWEILER GmbH

  • 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. Pumps of this type embody highly mature technical designs. For many years, improvements and innovations have been at the margins. Examples of design improvements include the 2/3-screw geometry, which is more economical than the 1/2-screw geometry that had been used exclusively for ...


    By ALLWEILER GmbH

  • Less and More : Why You Should Pump Slurries with a Peristaltic Pump

    LESS WATER Peristaltic Pumps Use Less Water Hose pumps can circulate slurry SGs of 1.6 to 1.8 or up to 80% solid content. The traditional centrifugal pump loses efficiency when the slurry SG reaches 1.3 or 30% solids. With this limitation, slurry pumps have significant process water demands : on a plant processing 70 tonnes of ore per hour, every time a hose pump replaces a ...

  • Is Your Trailer Pump Impeller Installed Correctly?

    Over the years trailer pumps get modified, parts get replaced and sometimes one of those parts is a new impeller. Here are some tips for inspection, removal and installation to make sure your impeller gets installed correctly. IMPELLER ROTATION AND ASSEMBLY INSPECTION To avoid expensive repairs and downtime, take a minute and verify that your impeller is rotating in the right ...


    By SRS Crisafulli, Inc.

  • 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. Accordingly, pumps, pipe connections, and fittings must be capable of resisting these demanding conditions. In addition, waste products usually contain a ...


    By ALLWEILER GmbH

  • 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 ...


    By ALLWEILER GmbH

  • AquFlow (formerly Hydroflo) metering pump helps make fireproofing system a success

    Problem: Part of developing innovative technology is making its application as easy for the user as possible. So when W.R.Grace&Co.-Conn. went to market with an accelerator for its Monokote family of fireproofing products, a key priority was making the system user-friendly. The accelerator can save users money because it makes the product more efficient to apply and increases ...

  • Recycling of Cars Made Green and Cleaner with Verderflex Peristaltic Pumps

    At the end of its’ life, a car yields on average, 140 kilos of shredder waste: 26 kg of metals, 69 kg of plastics, 11 kg of minerals and 24 kg of fibres. In Tiel, Netherlands, a Post Shredder Treatment plant (PST) was built in 2011, for the recycling of cars. The PST plant is one of the two plants in Europe that are able to recycle to approximately 95% of the waste materials. ...

  • Heat Pump Used to Drain Contaminated Sludge in a Steel Factory

    Summary In 1987, new regulations required that factories dispose of their contaminated water and waste themselves. Making galvanised steel wire, the Stelfil factory produces sludge contaminated with lead and zinc. Stelfil spent thousands of dollars to bury this waste and evaluated three systems to remove most of the water: a gas dryer, an induction heated screw conveyor and a heat pump system. ...


  • Making the right pump purchase decision for lube oil manufacturers

    Lube oil manufacturing plants are being built or expanded around the world to cope with increasing demand – most of which originates in Asia. Perhaps not surprisingly, China is projected to win the top spot from the USA in lubricant consumption within 6-7 years. And in India, the third-largest market in the world, annual demand has recently topped 2 billion liters. In both countries, demand ...


    By DESMI A/S

  • You can dewater your cake and pump it too! Conveyance options for OCSD Plant 1

    OCSD is currently upgrading Reclamation Plant 1 to co-thicken primary and waste activated solids using centrifuges. Digested solids will also be dewatered using centrifuges and the two processes will be housed in the same building. A small building footprint, stringent redundancy requirements, and a 200 foot distance between the dewatering and storage facilities requires innovative engineering ...

  • VSEP treats thermomechanical pumping effluent with no pre-treatment required at a major MDF plant

    New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) system in August, 1998 at a major international Medium Density Fiber (MDF) Board manufacturing facility. The VSEP is used for treatment of thermomechanical pulping effluent at this facility with no pretreatment required. The VSEP system uses a nanofiltration membrane module and is able to treat pressate from the ...


    By New Logic Research, Inc.

  • Mono on the move with sintec

    Mono’s Widethroat W range pump forms an essential part of Sintec’s mobile system by pumping the thicker groutmixes more quickly and efficiently. Once the mobile system is in-situ and drilling of an exploratory hole is almost complete, a mixer combines the bentonite/cement grouts to form bentonite slurry. This is then transferred by the W Range pump to the holdingtank ready for injection into the ...

  • Mono’s pet project at c&d foods

    Four SW042 progressing cavity pumps are fitted on the production line; two are fixed in the extrusion lines and another two are mounted on mobile trolleys. At the beginning and end of each extrusion cycle, if the purée is not of the correct consistency for packing or sale, it is extruded into the extended hopper of the mobile pump and then wheeled to the fixed pump where the purée is transferred ...


    By NOV Mono - Mono Pumps Ltd

  • Long term performance for mono nov at parripak foods

    Parripak Foods supplies whole, peeled, julienne or purée vegetables to manufacturers of the chilled section ofready made meals, soups, sauces and dips. This means the company needs versatile pumping equipment, effective at handling many different products. The Mono Widethroat pump is designed to transfer highly viscous or bulky materials such as fruit and vegetablewaste slurries and is ...

  • Fountain creek sediment collector - case study

    An innovative sediment management method, a 30-ft wide, high capacity, Sediment Collector, is currently installed in Fountain Creek, Pueblo, Colorado upstream of the confluence with the Arkansas River.  This installation is intended to demonstrate a new technology available to reduce the need for dredging.  The purpose of the Sediment Collector is to demonstrate the capability to lower ...


    By Streamside, LLC.

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