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  • Balancing A Variable Flow Water System Will Ruin the Control System
    Many seminars and technical sessions have been held to outline procedures for balancing variable flow water systems. Most of these sessions recommend "Proportional Balance." When this technique is used, all control valves are set wide open and the circulating pump is operated at maximum speed
  • Flow Switches for Oil/Gas Refinery Water Treatment
    , etc., that can be used in refinery wastewater treatment. They all, however, have one thing in common: liquid flow switches are necessary to monitor and control the flow of water and chemical additives throughout the wastewater treatment system. Flow switches are used at multiple points in water
  • Flow Switches for Refinery Water/Wastewater Control
    To ensure quality production of petroleum-based products in oil refineries, including gasoline, diesel, kerosene, heating oil, and byproducts for plastics and a variety of lubricants, operators must establish reliable water monitoring and treatment. There are three refinery process areas
  • Converting Primary/Secondary Chilled Water Systems to All Variable Flow (.pdf)
    There is a perception in our industry that the control of variable flow chilled water systems is so complicated that it is difficult for the operators to understand. Thus, many engineers and designers have hesitated in converting primary/secondary systems to all variable flow, even though
  • Water conservation
    and flush water control arrangements on rotating equipment typically use large quantities of water. These flow rates are often uncontrolled. Studies done illustrate flush water use on packing arrangements. Reducing water use on rotating equipment can negatively impact equipment reliability. High
  • Deionized Water
    build up from the circulating coolant. The arcing can damage sensitive control electronics in the equipment being cooled. The lack of ions in DI water eliminates both of these problems.
  • Flow Control: The Importance of Spray Efficiency
    Have you ever tried to wash your car or water your lawn with a malfunctioning nozzle that is spurting water from the hose and/or handle connection? It's a frustrating endeavor, no doubt. But before a nozzle gets to the point that it is actually losing water at its joints, chances are it has gone
  • Weight Control in Water Treatment Plant
    A city municipality was using a system for processing the effluent that flows into the water treatment. facility, and determined the process to be costly and inefficient. The system involved channeling. material, containing a variety of solids, on a continuous basis into grit separators, shredder
  • Monitoring Solar Hot Water Systems
    An installer of solar hot water systems needed a data logger that could monitor the temperature, water flow rate, and several other parameters at various points in the system, control the different circulating pumps, record the data for performance tracking, and monitor the energy production
  • Case Study: Waste Water Management
    Characteristics of Wastewater Treatment Facilities: Require precise control because an error could result in the release of pollutants into the environment. Typically the SCADA (Supervisory Control and Data Acquisition) system involves a Master Terminal Unit (MTU) and one or more Remote Terminal

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