We have a 2250 HP 4160V 3P 60Hz 1.15SF 270FLA Induction motor on a large compressor. There are surge protectors and capacitors (GE 1.5uF, 3 Pole, 4160V) on each phase at the motor. The motor dropped out one day in the middle of unit operation - no alarms on the Multilin, no obvious signs of...
Our process group would like DP's on the Atmospheric Crude Tower around every section. All DP's are in the vapor space of the tray. All the xmtrs are mounted above the taps with the sensor lines sloping toward the taps. I have steam traced the sensor lines, but we are still having problems...
I would like to hot tap a few 1" connections on an existing tower to install some differential pressure transmitters. To install these hot taps, we would use a Sockolet with a nipple and a valve. My inspection department will not let me do these taps, even though ASME VIII allows it. The...
We plan to replace some tubesheets in the convection section (1400°F to 1500°F) of a Reformer Unit heater with stainless steel. Someone mentioned that it is standard to use 310SS for these applications. The ASME Section II-D book indicates that 304SS plate has a higher allowable stress than...
