Good, better, best: Learn 3 ways to configure your pressure reducing regulator and find out which one will maintain more consistent downstream pressure.

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  • "Performing Under Pressure: Flattening Pressure-Reducing Regulator Flow Curves in High-Flow Systems", by Michael Adkins, Flow Control magazine, May 2012 (4 pages)  This article will explore the following system configurations:
    1. Employ an upstream pilot regulator to control dome
      pressure in a domeloaded regulator;
    2. Employ an upstream pilot regulator and add downstream
      external feedback to the domeloaded regulator; or
    3. Employ an upstream pilot regulator and add downstream
      external feedback to the pilot regulator (rather than the
      domeloaded regulator).

These configurations offer good, better, and best performance
in terms of maintaining more consistent pressure—and therefore
flatter flow curves—over increasingly broader flow ranges.

  • View a Swagelok Tech Tip Video on minimizing droop in a pressure reducing regulator. See similar configurations in action and the flow curves that result.

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