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Valve Control

Valve Control news and technical articles from Power Engineering. Search Valve Control latest and archived news and articles

  1. Valve control ,diagnostic system

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    Mon, 1 Jul 1996

    Valve control ,diagnostic system Fisher Controls has introduced an integrated digital actuator/transmitter and diagnostic software for its

  2. Controlling Reheat Temperatures in Texas

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    Thu, 1 Jul 2010

    operate by moving hydraulic fluid from one side of a double-acting cylinder to another. The design provides precision valve control from 0 to 100 percent open, without overshooting, an inherent weakness for pneumatics because of the use of air

  1. gas turbine skids

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    Tue, 7 Sep 2010

    gas bubbles will form in the liquid, which may cause severe pump damage. The Allweiler skids were designed with a valve control system capable of reacting quickly to prevent this from occurring. Read more gas-fired equipment news

  2. Products

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    Tue, 1 Jul 2008

    analytical capability. Online, multi-stream models are available with NEMA rated enclosures and fully automated valve control . In addition, systems can be equipped with optical switching between sample cells to accommodate the need for

  3. Turbine Controls Upgrade Yields Higher Reliability and Efficiency

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    Tue, 1 Nov 2005

    until a preset minimum load is achieved. Coordinated boiler and turbine load control. Hydraulic system reset. Stop valve control . Frequency adjustment (60Hz ±0.05Hz). Auxiliary (Open Loop) Controller (Alstom P400-AC) PACSystems RX7i

  4. Smart Technologies Sustain Plant Reliability, Help Control Costs

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    Mon, 1 Oct 2007

    control valves, resulting in less wear and tear on the valves, longer life and greater reliability. They allow better valve control , which translates into better boiler control and more efficient steam production. Monitoring valve action remotely

  5. Align Your Supercritical Boiler with Deregulation

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    Thu, 1 Apr 1999

    steam flow, there is no power surge. Having the P valve control a process variable during the fluid path transfer eliminated ..... valves with the turbine control of steam flow and the P valve control of PSH pressure. Since the conditions at the PSH outlet

  6. Slurry Pump

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    Sat, 1 Nov 2003

    Electronic Valve Controller CCI announces the release of its QuickTrak electronic valve controller, a high-flow servo- valve control system with over 50 times the flow capacity of conventional "smart" positioners. The QuickTrak system provides very

  7. Valve Applications Benefit From Technology Upgrades

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    Wed, 1 Sep 1999

    with wire draw and inaccurate control, results in a reduction in steam temperature and efficiency. The typical spray valve control scheme uses block valves operated in series. This is a code requirement and represents the only way to stop leaks

  8. Design, maintenance extend FGD system slurry valve life

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    Tue, 1 Aug 1995

    undersized sumps or poorly designed piping layout. If this is done, the operator can expect continuous problems with valve control and maintenance. In addition to good system design, proper valve selection is a key to minimizing maintenance of