Was your Plan 53B piped to the proper connections? The gland bushing is the last item in the seal designed to mitigate the amount of leakage to the atmosphere should the outer seal fail. If you are suggesting you had 12 barg in this cavity between the outer seal and gland throttle bushing, then...
Moving the carbon to the stationary would not alleviate the issue - the blistering is a result of viscous shear at the interface; it's independant of the actual velocity profile of the face itself. There still would be the shearing effect even if the face was stationary. This problem can be...
Dual pressurized seals in sour crude is not uncommon - Plan 13/53A or B would be typical. I would not use Plan 52 unless you want to repeatedly clean out your seal pot.
The integrity could be verified if you detect any leaks during the initial pressurization. You can verify the seal integrity once the seal is installed in the pump by pressurizing the pump casing with air, isolating, and monitoring for loss of pressure (mounting a pressure gauge on the casing or...
The air test for the seal is what API 682 will reference - that test is meant as an integrity check of the cartridge assembly, making sure no o-rings were cut during assembly, faces cracked, etc. It is not meant to provide an indication of the performance of the seal in service under the...
Leave the GPA off of the resume - as Ron mentioned, what really matters is that you actually have the degree, and the fact that you have a MS from Georgia Tech speaks volumes in it's own right. You really want to focus on your interviews and hopefully you have some tangible experience you can...
How is the cooler mounted - horizontally or vertically? If it's vertically mounted, then both the supply and return could be easily vented at their highest point. If it's a horizontal mount, then you really have to make sure you blow down both sides of the circuit (and that you have the valving...
I can't stress enough that portraying confidence without being cocky is golden in a young engineer as I see it. Most I have come across nowadays have an unbelieveable sense of entitlement and know-it-all attitude that I would never think of having when I finished school, and that was only 12...
Have you considered how to lubricate the primary seal when changing to plan 52? You'll need to take this into consideration assuming you plan on using the process fluid as the primary seal lubricant. As Flexibox mentioned, the advantage of the pressurized seal is that both the priamry and...
A typical starting point for the N2 purge rate is 0.5 to 0.6 SCFM, which relates to a flow rate for a 5 PSIG differential pressure across a 0.062" orifice. You can adjust the rate up or down depending on application specifics. Typically, Plan 72 is more flow based as it is being introduced to...
A single seal with a steam quench will have connections on the gland in addition to a throttle bushing; the steam will get injected between the seal faces and the throttle bushing through an inlet, then drain freely through the second connection in this area (one will be labeled 'quench' or 'Q'...
If the water vaporizies upon entering the seal gland, the change from liquid to vapor instantaneously occurs right beneath the seal faces - you will pop the faces open as a result or worse if the reaction is violent enough. As stated - hot, dry steam or N2 are the only acceptable quench mediums...
