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  • Thermal Spray Gas Flow Contol
    flow. Method. Most HVOF thermal spray systems use three flow control instruments, one each to control the oxygen, fuel, and a powder carrier gas. The flame characteristics are determined primarily by the oxygen and fuel flows but also depend on the gun design and are affected somewhat by the carrier
  • The Evolution of Thermal Mass Flow Meters
    ?. constant current method – to develop a. type thermal instrument to regulate gases. A. One of the major problems with early. stainless steel thermal flow meter in the. used for chemical vapor deposition in the. thermal mass flow meters was that they. early 1960’s. Their line of air and gas flow
  • Greyline DFM 5.0 Doppler Flow Meter for Crude Oil Case Study
    configuration for 1.5m straight runs for good optimum flow conditions. Each flowmeter's 4-20mA output is connected to Petrobakken's PLC for pump speed control. Flow rate and totalizer are displayed on the instrument's backlit LCD display. After three months of successful testing, Petrobakken installed three
  • Power Generation
    (gas and liquid),. integration, custom protective. wet NOx emission reduction spray. coatings and customized electronics. systems, critical cooling water flow,. enclosures to meet local. fuel conditioning flows and. Hoffer Premier Gas flowmeter with HIT-2 Rate Indicator/Totalizer. requirements
  • Snowmaking
    Hoffer Flow Controls has recently supplied two flowmeters for use in the snowmaking process at Whitetail Ski Resort located in Mercersburg, Pennsylvania. One of the flowmeters is a 2" gas turbine meter that will be used to monitor air during the snowmaking process. The other meter is a 1½" *STAR
  • Flowmeters Benefit From Silicon Advances
    and provides an end-to-end width that is identical to an ASME BPE 180 elbow. Sensor Detects Low Gas, Liquid Flows Well-suited to pulsing or periodic flows, these in-line flow sensors provide rapid response and can monitor changes as low as 5 ml/min (0.001 GPM). Solid state device has no moving
  • Modern Electronics Meet Turbine Meters
    High accuracy, exceptional turndown, repeatability and speed of response have made turbine meters the meter of choice for obtaining precise flow measurements in liquids and gases. But unlike the outdated notion that many users have of a mechanical meter, modern turbine meters are utilizing state
  • How Ultrasonic Flowmeters Work (.pdf)
    away, the pitch seems to drop. Ultrasonic Doppler flowmeters put this frequency shift to work in so-called dirty liquids containing acoustical discontinuities-suspended particles, entrained gas bubbles or turbulence vortexes. Ultrasonic Flowmeters How do they work? Sounding Out the Flow. How

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