coupling sealing Articles

  • Magnetically coupled pump reduces maintenance costs

    Huntsman Holland produces raw materials for the polyurethanes industry. Due to pump problems, the company was looking for a better solution. Of course, no company will accept the risk of leaks when buying a pump, but that even applies more strongly in the chemical industry. Because they are working with substances which can pollute the environment or which can adversely affect the health ...


    By DESMI A/S

  • DESMI’s Magnetically Powered Pumps Seal the Deal

    For companies pumping dangerous or expensive chemicals, leaks can endanger both personnel and the bottom line. Hermetically sealed, magnetically powered pumps are the state-of-the-play answer. The list of potentially dangerous or simply-too-expensive-to-lose substances being pumped from one part of an industrial process to another somewhere in the world is long. Take isocyanates, for example. ...


    By DESMI A/S

  • S. Dyrup & Co. selects magnetically coupled ROTAN® pumps

    S. Dyrup & Co. selects magnetically coupled ROTAN® pumps One of Europe’s leading paint manufacturers inaugurates new facility: S. Dyrup & Co. select magnetically coupled ROTAN pumps. The summer of 1998 – S. Dyrup & Co., one of Euro-pe’s leading producers of paint and lacquers, installs an advanced plant for manufacturing solvent based paint ...


    By DESMI A/S

  • Temperature Dependence of Soil Water Potential

    To understand the process of coupled heat and water transport, the relationship between temperature and soil water potential must be known. Two clays, Avonlea bentonite and Lake Agassiz clay, are being considered as the clay-based sealing materials for the Canadian nuclear fuel waste disposal vault. Avonlea bentonite is distinguished from Lake Agassiz clay by its high sealing potential in water. ...


    By ASTM International

  • S. Dyrup & Co. A leading paint manufacturer

    One of Europe’s leading paint manufacturers inaugurates new facility: S. Dyrup & Co. select magnetically coupled ROTAN pumps. The summer of 1998 – S. Dyrup & Co., one of Europe’s leading producers of paint and lacquers, installs an advanced plant for manufacturing solvent based paint and wood preservative. ...


    By DESMI A/S

  • 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, ...


    By ALLWEILER GmbH

  • Upgrading Water Injection Pumps

    Water injection pumps that are used in oil exploration typically face extreme abrasion, chemical attack, and cavitation erosion in their daily operation. The injected water is frequently loaded with abrasive particles, such as quartz sand, which quickly erode conventional pump surfaces. Sulzer’s service teams offer solutions to increase the lifetime and the performance of water injection ...


    By Sulzer

  • Polyurethane Foam/Isocyanate

    Polyurethane Foam/Isocyanate Isocyanate is one of the components in broadly all foam products, such as foam mattresses, inner liners in cars, cushioning in car seats, chairs, and sofas. The hard qualities are used for insulation of houses, machines, tubes, etc. As a matter of curiosity we can also mention the green foam in which flowers for decorations are stuck. There are various ...


    By DESMI A/S

  • Fast, Sensitive, and Cost-effective ICPE Spectrometry Analysis of Trace Metals in Water by EPA Method 200.7

    Introduction The Shimadzu ICPE-9820 multi-type ICP atomic emission spectrometer is the ideal instrument for running EPA Method 200.7. The ICPE-9820 permits simultaneous analysis of all elements, at all wavelengths, allowing high-throughput analysis with little need for dilution. The large 1-inch CCD detector with over 1 million pixels measures 110,000 wavelengths. Overflow channels ...

  • What is a slurry pump

    Talking about slurry pump, we see slurry first then next is pump, so let’s start with slurry. Slurry is a kind of liquid with solids, mostly its specific gravities greater than 1. The solids size may vary from a few micrometers, often referred to as microns, up to hundreds of millimeters and the solids may settle below a ...


  • Spiral-Wound Sepralators: The Range of Options

    Introduction Spiral-wound membrane elements (sepralators) were used mainly for basic water purification until the mid to late 1970s, when broader uses began to receive attention. New applications often required special consideration such as; sanitary construction for the dairy industry, high temperature for food processes and waste streams, and high pressure capability for desalination. In ...


  • Sound Refining, Inc. - a ROTAN® Pump Success Story

    Sound Refining, Inc. - a ROTAN® Pump Success Story Sound Refining Inc. of Tacoma, Washington provides bulk liquid storage and supplies fuels, lubricants, and other products and services to industry in the Pacific Northwest.  Plant Superintendent, Tom Beck is responsible for maintaining incoming and outgoing product schedules. Tom tells us, ...


    By DESMI A/S

  • Environmental incident response, North-East England

    Project The Remediation Strategies Response Team were called-out to a manufacturing facility to assist with a potential pollution incident arising from contamination of the site’s surface water drainage system.  During weekend work, a concrete cutting contractor had disposed of a large volume of concrete cutting slurry into the site’s surface water drainage system.  ...


    By Remediation Strategies Ltd.

  • Mission Creek: Flood Risk Reduction and Streambank Restoration

    On June 19th, 2012, the residents of Duluth, Minnesota experienced a storm event for the record books. Over the course of 24 hours, approximately 9 inches of rain pummeled the landscape, causing massive floods and landslides throughout the city. As a result, Duluth’s infrastructure and natural resources were severely damaged, notably miles of designated trout streams. In fact, the floods ...


    By LimnoTech Inc.

  • Birds Check Out of University Library Thanks to StealthNet

    The University of Texas at Austin’s Perry-Castañeda Library building is a marvel of mid-century institutional design. The monolithic limestone structure is peppered with ordered rows of recessed windows that allow sweeping views of the campus while blocking direct sunlight, reducing summer cooling costs in the massive building. These window recesses, however, provided perfect little ...


    By Bird Barrier

  • Treatment of wastewater and restoration of aquatic systems through an eco-technology based constructed treatment wetlands – a successful experience in Central India

    In the last couple of decades constructed wetlands (CWs) have drawn considerable interest in Central India. CWs offer an effective means of integrating wastewater treatment and resource enhancement, often at competitive cost in comparison to conventional wastewater treatments, with additional benefits of Green Urban Landscaping and wildlife habitat. This paper describes treatment performances ...


    By IWA Publishing

  • Clarifier maintenance

    Clarifiers are expensive, to buy or repair, and their downtime can be costly in fines imposed by regulatory agencies and in community ill will. Regular maintenance, an annual inspection of the mechanism and an occasional touchup of the paint or coating system are simple and inexpensive proactive steps that will usually prevent most problems. Three components of all clarifiers require maintenance: ...


    By WesTech Engineering, Inc.

  • Genesee county waste water drain commission

    Michigan county selects a Cornell pump for its new pump station. Genesee County, where Flint, Michigan is located, had an issue with their wastewater Pump Station No 1. Employing a vertical line shaft and dry pit pump design, the station was becoming increasingly expensive to maintain and operate. Adding to maintenance issues were the pump station’s age and ...


    By Cornell Pump Company

  • What Do You Know about Dry and Wet Types Rotary Kiln?

    The dry and wet types dry and wet types rotary kiln is not only important equipment in cement making production line, but also the heart of cement enterprise. We must use and maintenance for dry and wet types rotary kiln, and ensure the normal and the long-term safety operation. In view of equipment management, the straightness of dry and wet types rotary kiln centerline and the inclined Angleall ...


    By Fote Machinery

  • Soot level – a diesel engine lube oil condemning limit

    While there is widespread disagreement on used-diesel oil condemning limits, it is well known that excessive soot in the lube oil causes abnormal valve and injection-train wear.  It can also increase exhaust emissions and clog filters.  Typically, the suggested limit for soot is in the neighborhood of 3% but can go much higher.  With the new ASTM Method D7686, truck, bus, ...


    By Spectro Scientific

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