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  • 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
  • Micro Fluidic Flow and Pressure
    The footprint of mass flow and pressure sensors can be substantially. reduced using MST/MEMS. Equipment manufacturers are looking for compact. solutions to monitor or control the gas flow or pressure. within their systems. As these systems are getting smaller. and smaller, the incorporated flow
  • Natural Gas in Venezuela
    Hoffer Flow Controls has recently supplied two computerized natural gas turbine flow measuring systems to Venezuela's gas industry. These systems accurately measure "mass" flow rate and total. Venezuela has enormous gas resources and measuring it accurately is critical because of its value. In one
  • Air Emissions from the Automobile Manufacturing Industry: A Bio-Oxidation Pilot Study of Paint Emissions Control
    were made to airflow (adjusting residence time) and sump water recirculation spray (biotrickling filter flow rate and biomatrix chamber timing) while monitoring the VOC inlet and outlet concentrations using a gas chromatograph equipped with a flame ionization detector (FID - Method 25A).
  • MICRO: Critical Materials
    device geometries is the delivery of gases to the process tools. Controlling gas delivery, in turn, requires accurate flow control devices such as mass-flow controllers (MFCs). Typically, gas delivery is accomplished by means of an MFC located on a process tool among other gas-delivery components. Most
  • MICRO: Product Technology News (February 2001)
    , suppressor module, and conductivity detector in one compact unit. Each IC has a flow path that is constructed of PEEK. The pump provides variable flow levels from 0.2 to 2.5 mL/min, while the detector has selectable thermostat temperatures from 25 to 45 C in 5 C steps. Peripherals are kept
  • Crossflow Scrubber and Air Filtration Pilot System
    This design utilizes stage-wise scrubbing and filtering of gases and contaminants in a compact, easy to maintain package. Inherent in the design is the flexibility to collect a diverse range of contaminants and at a high gas flow turndown (allowing for large swings in the gas volume). Kimre TM
  • Proportional valves eliminate design headaches
    of closed-loop control systems. Proportional valves are a great alternative when an application requires more than on-off control, but not the high precision and expense of servovalves. As such, proportional valves are widely used in a multitude of applications, including the control of gas and air flow

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