RE: Level Indicator / Level Glass

Oops! I should have looked closer at the post title and I also see that you're asking about top/bottom not side/bottom. It's early where I am and my eyes aren't open yet. Maybe this is still of some use. I'll do another post just on gauge glasses when I wake up.

Richard B

-----Original Message-----
From: PipingDesign@yahoogroups.com [mailto:PipingDesign@yahoogroups.com] On Behalf Of Richard Beale
Sent: January 13, 2008 10:02 AM
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign] Level Indicator / Level Glass

Hi,
Take a look at the following link for indicator selection.

http://www.document
<http://www.documentation.emersonprocess.com/groups/public/documents/bul
l> ation.emersonprocess.com/groups/public/documents/bull etins/d103219x012.pdf

For positioning you'll need the instrument dimensional data sheet. On the P&ID you will find the NLL (normal liquid level), and on the data sheet there is a mid-range or set point indicated on the external cage. There is a dimension from the set point to the upper connection. The upper nozzle connection on the vessel is to be set the same distance above the NLL as this dimension on the data sheet. For the lower connection on the vessel you'll have to refer to the data sheet again. Add the dimension from upper connection centreline to bottom connection FOF to the pipe spool dimensions, e.g. gasket, valve, gasket, flange, tee. Set the lower nozzle connection on the vessel this same calculated dimension below the upper connection. The same applies if you are mounting this onto a bridle. Orientation also has to be decided of course.

Richard B.
Calgary, Canada

-----Original Message-----
From: PipingDesign@ <mailto:PipingDesign%40yahoogroups.com> yahoogroups.com [mailto:PipingDesign@
<mailto:PipingDesign%40yahoogroups.com> yahoogroups.com]
On Behalf Of phenol19
Sent: January 13, 2008 1:20 AM
To: PipingDesign@ <mailto:PipingDesign%40yahoogroups.com> yahoogroups.com
Subject: [PipingDesign] Level Indicator / Level Glass

Hello

Please tell me how to design / Select a level indicator for a absorption column. Is there any Code / Standard available for refrence.

And also how to calculate the center to center distance for top/bottom type level indicator.

Thanx

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[Non-text portions of this message have been removed] Received on Sun Jan 13 12:13:00 2008