Thanks Niwot, I discovered this earlier and should have updated this site. The norm flow is 86,500 CFM, other parameters remain unchanged.
I'm still stuck on this one if anybody can help.
Thanks
I've looked at most everything I can think of for this application.A mixed gas by volume % of SO2:11.73, O2:11.73, CO2:0.14, N2:76.4. The pipe is 86" diameter, 10mm wall CS. Norm flow 78,000 Cu ft/hr, 150 deg F., upstream press -2PGIG. minimal up/downstream diameters too as per the attached...
Thanks guys for your help with this one. I ended up with a couple of quotes that fit the bill. One from the major flange supplier in Texas, and the other from a local fabricator using water jet cut flanges out of 1/2" and then welding the length of pipe in between. Came in at $1600 a piece.
We're about to replace qty 16 old magmeters with new ones. However the new ones have a shorter lay length leaving a 6.25" gap from old to new in our 20" lines. 55 PSIG water service, ambient temperature,
150# flanges.
Having custom spool pieces manufactured is looking expensive and standard...
If I understand your question properly, my experience is that the manufacture specifies the accuracy of the thermocouple wire after manufacturing within their own plant. If they have a NIST traceable QA program their test gear will be certified to a traceable standard. The manufactured wire is...
A tough flow / totalizer application where waste water and grease is collected from restaurants and food processing. The flow is made up of grease trap waste with water at 3 to 5%, with food bits, sludge and grease up to 35% solids. It's the solids content that is the most critical.
All...
Yes the turndown of just under 600:1 is the problem. At first I wanted to go with thermal mass but the steam portion seems to stop the suppliers. At the low end I would like +/- 2% accuracy.
Thanks again, Dave
To me the Omega equipment does not look very robust, especially in an industrial setting. Have you had a look at Accutech? We've got a dozen or so temperature transmitters now working well.
Thanks everyone for the good info. The "K" thermcouples are pretty old and starting to drift (not uncommon I know) So I'm concidering Class "A" RTD's to put an end to the problem. I think I'll try a few first and go from there, it's starting to sound quite expensive.
I am looking at replacing thermocouples with 4-20mA temperature transmitters and, instead of incurring the expense of re-wiring with regular copper analog shielded wiring, re-used the existing thermocouple extension wires?
Presently the thermocouples (close to 150) are hard wired back to...