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replacement technology as an alternative of Daniel orifice fitting

Hi

Is there any new replacement technology as an alternative of Daniel orifice fitting?

Process specification:

Process: Sour Gas

Range: 4200 – 47000 m2/h

Pressure: 20 bar

Temp.:  70

MOH

• 18 Oct 2015 11:18 AM
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15 Replies

• Khadra Helminski

  

  • 20 Oct 2015 12:27 AM

  Hi MOH,
  
  Recommending the appropriate technology will depend on the H2S percentage or mole fraction. Do you know the H2S percentage in this application?
  
  Best regards,

  Khadra Helminski

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• MOH

  

  • 20 Oct 2015 2:48 AM

  In reply to Khadra Helminski:

  Hi Khadra
  The H2S percentage is less than 200,000 PPM
  Thanks
  Mohsenv

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• Khadra Helminski

  

  • 22 Oct 2015 12:54 AM

  In reply to MOH:

  Hi Mohsen,
  
  Based on the size of the application and process conditions, a Coriolis meter would be a good alternative.
  
  Best regards,

  Khadra Helminski

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• MOH

  

  • 22 Oct 2015 5:54 AM

  In reply to Khadra Helminski:

  Hi Khadra
  do you know series and model type? i need compact and accurate one.
  best regards,
  Mohsen

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• ShelbyTraverso

  

  • 22 Oct 2015 2:05 PM

  Hello MOH-
  What is it you like about the Daniel Fitting? Also, what negatives are you experiencing with the Daniel fitting that you want to get away from? If you like orifice plates, but want a solution that requires less straight run, I suggest you look into Rosemount Conditioning orifice technology. A 1595 orifice plate can fit right into your Daniel orifice fitting, but only requires 2 diameters of straight run both upstream and downstream. The accuracy will be the same as the existing orifice plate.
  What is most important to you for this flow measurement point: removable plate, low permanent pressure loss, straight run, overall weight, accuracy (1%? better?), price, lead time, etc? The more I know of your needs, the better recommendation I can give.
  Best regards,
  Shelby

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• MOH

  

  • 22 Oct 2015 3:20 PM

  In reply to ShelbyTraverso:

  Hi Shelby
  I like meter with low maintenance, Daniel have too many moving parts. and I prefer meter with better accuracy.
  Best Regards,
  Mohsenv

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• Tonya Wyatt

  

  • 22 Oct 2015 3:38 PM

  In reply to MOH:

  Hi Mohsenv,

  As Khadra mentioned, a Coriolis meter may be a good choice for this application.  Preliminary sizing shows that a CMF350 should work for the application.  This is one of our Elite Coriolis mass flow meters.  Here is a link to the web page that will give you more information about the Elite meters:  http://www2.emersonprocess.com/en-US/brands/micromotion/coriolis-flow-density-meters/ELITE/Pages/index.aspx.  Prior to purchasing a meter, I would highly recommend that you discuss the specifics with one of our specialists.  You can send an e-mail to [email protected] for assistance or contact your local sales representative.  The Coriolis meter will have extremely low maintenance requirements and can achieve accuracies for mass flow measurement of gas of up to +/-0.35%.  Based on your conditions (assuming the flow rates you showed were standard m3/hr), the CMF350 will measure better than +/-0.5% accuracy even at the low end of your flow range and +/-0.35% as you get to the higher flow rates.

  Shelby also made a good point about the Conditioning Orifice Plate meter.  It can be close coupled eliminating a lot of the maintenance associated with traditional orifice plate installations with long impulse lines.  It may be worth considering as well.  It can achieve flow accuracy of up to +/-0.5%.

  Best Regards, Tonya Wyatt

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• MOH

  

  • 22 Oct 2015 3:51 PM

  In reply to Tonya Wyatt:

  Hi Mrs. Tonya
  Thanks, is there any special consideration for Coriolis meter for Gas measurement ?
  Best Regards , Mohsenv

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• ShelbyTraverso

  

  • 22 Oct 2015 4:09 PM

  In reply to Tonya Wyatt:

  Mohsenv-
  If you are interested, here is the link to the 3051SFC Rosemount Compact Conditioning Orifice Flowmeter: www2.emersonprocess.com/.../index.aspx
  I recommend the same as Tonya: no matter which flow technology you choose, you should work with a specialist on specifics prior to purchasing. If you want to learn more about the 3051SFC, you would need to contact your local Pressure sales representative or email: [email protected]
  Both technologies would work great in your application, so whatever you choose, you will be in good hands.
  Best regards,
  Shelby Traverso

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• Tonya Wyatt

  

  • 22 Oct 2015 4:12 PM

  In reply to MOH:

  Hi Mohsenv,
  
  There are a few considerations. The most important thing to consider is choosing the correctly sized meter for the application. It is also important to verify that the wetted materials are compatible with your application. After the correct meter has been selected, it is important to install the meter appropriately. The meter will work in any orientation, but you will want to keep it full. For gas applications, that generally means that in a horizontal line, the meter should be installed with the tubes up. In a vertical line, for gas applications, we would recommend flowing through the meter in the downward direction. Use good piping practices for installation and support the piping around the meter, but not the meter itself.
  
  For natural gas applications, many people follow AGA Report Number 11 recommendations. That document will give you lots of detailed information including some example installation drawings, performance requirements, verification, and more.
  
  Thanks, Tonya Wyatt

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• Khadra Helminski

  

  • 22 Oct 2015 4:36 PM

  In reply to Tonya Wyatt:

  Hi Mohsen,
  
  I hope you found the insights shared by our technical experts, Tonya and Shelby, helpful. Please don’t hesitate to let us know if you have additional questions.
  
  Best regards,

  Khadra Helminski

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• MOH

  

  • 22 Oct 2015 4:52 PM

  In reply to Khadra Helminski:

  Hi Khadra
  Thanks

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• MOH

  

  • 22 Oct 2015 4:57 PM

  In reply to MOH:

  Hi
  can compact orifice meter meet the range?
  Thanks

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• ShelbyTraverso

  

  • 22 Oct 2015 10:39 PM

  In reply to MOH:

  I've done a preliminary calculation and the 3051SFC in 10" line size can handle that turndown range. I will email you separately with details. Thanks!

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• MOH

  

  • 23 Oct 2015 6:21 AM

  In reply to ShelbyTraverso:

  Hi
  Thanks, Mrs. Tonya and Shelby

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