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mohsinhamid
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Join Date: May 2011
Posts: 91

3 Inch Line Aqueous Ammonia FT Type?

11/19/2015 9:56 AM

his everyone For 3 INCH Aqueous Ammonia line, we are installing FT and FV, Pls suggest me with effective Flow transmitter type. I thought of using Orifice with DP Transmitter, Since Ammonia line is highly hazord, pls suggest with good Flow Transmitter type.
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#1

Re: 3 Inch Line Aqueous Ammonia FT Type?

11/19/2015 7:22 PM

The DP type is probably a good choice. You can likely find versions in which all the wetted portions are resistant to aqueous ammonia. I'm not sure, but I think SS316 is good for that. Many manufacturers of orifice plates, pressure transducers, fittings, etc. can offer or refer you to chemical compatibility charts.

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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#2

Re: 3 Inch Line Aqueous Ammonia FT Type?

11/20/2015 9:34 AM

Any of the following techniques is suitable:

  • Magnetic
  • Ultrasonic
  • Vortex-shedding
  • Variable area
  • Coriolis
  • DP across orifice, though it is soooooo 1973

Check with materials databases on the compatibility of wetted materials with the wetting agent.

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fauzzi
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Join Date: Dec 2013
Posts: 1
#3

Re: 3 Inch Line Aqueous Ammonia FT Type?

11/24/2015 2:10 AM

Nowaday, many company start using vortex to replace orifice because less maintenance and cost to install maybe same with orifice especially if line below than 4 inch.You can compare the cost by asking the vendor to quote, but dont't forget to check other parts cost such as fitting, tubing, valve, manifold ctc that need to be installed with orifice.
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Previous in Forum: Has Anyone Measured ESR Values of Multiple Layer Ceramic Capacitors?   Next in Forum: What is DIN 3210 standard for?

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