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Is there also any Multi-Stage Pressure Drop effect on Fisher Whisper Trim III (for Gas Application)?,

Dear Experts,

I need control valve for gas application (specifically for Compressor Recycle), dropping pressure from 670 psig to 200 psig. As per sizing result from manufacture, we got the recommendation to use Whisper Trim III. Question:

  • Is there also any multi-stage pressure drop effect on Whisper Trim III?, similar like Cavitrol III for liquid application.
  • To minimize liquid formed during pressure dropping from 670 psig to 200 psig

Thank you in advance,

Faiz

1 Reply

  • Hi Faiz, I received this response back from our Final Control team:

    Hi Faiz!  We have extensive experience in the compressor recycle application. 

    • Our Whisper Trim III technology does not use pressure-staging like Cavitrol III, rather it uses hole size and spacing to achieve flow separation and frequency shifting to eliminate harmful noise and vibration.
    • To ensure proper sizing and selection to avoid the formation of liquid, you should consult your local Emerson sales office and get in touch with our team of expert sales engineers.  They will make sure that you have exactly the correct trim for your compressor recycle valve!
      • To learn more about how Fisher handles Anti-Surge Control Valves, you can watch this video.”