Apr 3, 2002 · Bubble tightness is a wide terminology which simply means zero leakage when the valve is in close position.Now if the medium is water then the valve should have zero leakage …

Sep 19, 2006 · I'm looking for a standard that identifies dimensions being surrounded by an oval/oblong to mean "inspection dimension". We use SolidWorks, and they have this feature to …

Feb 22, 2008 · Bubble-tight is a relevant term if applied to a certain set of conditions. It must be explained that way. For example, if you do an seat leakage test with air as permitted by API …

Mar 30, 2008 · I've looked all over the net to get information on bubble canopy forming from ploycarbonate sheets (Lexan, etc.). I'm not talking about small model scale but usable on …

Nov 5, 2011 · We currently show the LSL and LSH that turns the pump on or off with an LSL bubble that has a dashed line going to one side of the motor with the word "OFF" and an LSH …

Dec 2, 2005 · I've seen two methods for showing a variable speed drive for motors on P&IDs. One is a standard instrument bubble with SIC inside, with a doted line going to the motor/pump. …

Sep 26, 2017 · I know balloons have been discussed frequently, but I can't seem to find an answer to my specific question. When a part is ballooned in multiple places (i.e. general view …

Jul 30, 2008 · Anyone out there knows what symbols to use for a VFD and for a magnetic starter in a P&ID?

Jul 15, 2006 · All: How to determine vapor pressure using HYSYS? Also it is always true whether Critical pressure is always greater than vapor pressure. Regards, sp77

Oct 20, 2009 · The column is an old bubble cap tray arrangement with 32 trays, each 5 inches (estimate) apart. The amount of instrumentation is rather limited. The pressure drop from the …