How often do you have to repair or replace your severe service control valves? Once a year? Every other year?

If you’re responsible for keeping processes running in a power plant, where magnetite fouling is a common occurrence, you know how expensive servicing or replacing these valves can be. We recently worked with a customer that was repairing two severe service control valves in their facility every other year because of poor water quality — at a cost of $50,000 each, or $100,000 every year.

$100,000 is a lot of money to be spending every year on what is essentially a temporary solution.

Control valves shouldn’t need to be repaired or replaced every year, even in severe service applications. That’s why Masoneilan developed the LincolnLog high-pressure control valve for cavitating and erosive applications.

Here at Allied, we like to refer to the LincolnLog as the “sleep-at-night control valve.” Thanks to its unique design, in particular, the trim overlap seat protection feature, the LincolnLog brings high-end performance and reliability to severe service applications.

Plus, if maintained properly, the LincolnLog can provide service for as long as 20 years, making it a cost-effective long-term solution.

Benefits of the Masoneilan LincolnLog control valve

  • Cavitation prevention — The LincolnLog breaks the total pressure drop into multiple stages, which are all actively controlled in unison with the plug movement. This reduces cavitation and the damage it can cause.
  • Rugged performance — The valve features heavy, continuous plug guiding to extend the trim life and reduce process downtime.
  • Best-in-class throttling control — Smooth, continuous throttling control across the entire travel span, including at low travel positions, extends the service life by minimizing seat erosion.
  • Reliable tight shut-off — Minimal seat erosion also ensures long-term tight shutoff.
  • Trash tolerance — The valve has wide flow passages so it can handle unpredictable pipeline trash, predictable dirty fluids, and even catalyst solids.
  • Trim flexibility — The trim can be balanced to reduce the required actuation forces or unbalanced for tight shut-off.

Additional key features

  • High trim impedance
  • Low recovery
  • 3D tortuous path
  • Does not require high strength alloys
  • Seating area not exposed to high fluid velocity and wear
  • Low surface area and minimal close tolerance requirements reduces crevice corrosion potential

The Masoneilan LincolnLog is available in globe or angle style and can be configured for almost any high-pressure severe service liquid letdown application. It’s your most reliable solution for unpredictable conditions.

For more information about this high-performance valve, download the spec sheet or contact us.

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