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prajalpatil
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Join Date: Jul 2008
Posts: 6

Diaphragm Seal and Transmitter

02/26/2009 11:45 PM

dear all,

i have an application for PTs, PDTs where process viscosity is 30 Cst. Line is electrically traced. temperature is 60 to 70 degree C.

shall i go for diaphragm seal or normal Tx will work???
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Mikerho
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#1

Re: diaphragm seal transmitter

02/27/2009 9:05 AM

If your process fluid is solid at room temp, I would damn sure as hell use a diaphragm!

Mike

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prajalpatil
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Join Date: Jul 2008
Posts: 6
#2
In reply to #1

Re: diaphragm seal transmitter

03/01/2009 8:22 PM

is it feasible to use diapgragm seal type FT (FE - orifice)???

if not what is subsitute for that?
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PWSlack
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#3
In reply to #2

Re: diaphragm seal transmitter

03/02/2009 10:38 AM

Please state the material and either its design flowrate or the line size. The technique options to be used depend upon that.

Does anyone still use differential pressure across an orifice to derive flowrate these days?

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Anonymous Poster
#4

Re: Diaphragm Seal and Transmitter

03/04/2009 11:28 AM

Go for diaphragm Seal :

(1)If the process is corrosive

(2)Process contains suspended solids and may plug the impulse piping

(3)Process medium may freeze or solidify in the tx. or impilse piping.
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Anonymous Poster (1); Mikerho (1); prajalpatil (1); PWSlack (1)

Previous in Forum: Level Control for Three Element Boiler Drum   Next in Forum: Does SIL-2 level requires third party certificate?

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