Hello! Good day!
We have a three stage centrigugal air compressor installed at site with two intercoolers and one aftercooler. We have recently identified two leaking tubes on the 2nd intercooler. Service of the intercooler tubes is cooling water. The Pressure of air entering the intercooler...
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We have observed that almost all of our A490M structural bolts already have damaged coating after being installed for nearly four (4) years. We are located near the shore and we suspect that this damage was aggravated due to high chloride. Some of the bolts are flaking already. As...
Is it acceptable to perform hot tapping near pump suction? API 2201 says to avoid hot tapping upstream of rotating equipment or automatic control valves, unless such equipment is protected from the cuttings by filters or traps .
Will pump suction strainer be sufficient for this?
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I read from a reference that increasing the suction temperature of a centrifugal compressor would lead to a decrease in its mass capacity. Can someone show me the equation that explains this? How will consequently affect the volume of air delivered by the compressor?
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Anyone who has experienced welding on a tank with molten sulfur inside? Are there any references or codes and standards that allow this? From my research, liquid sulfur has relatively low auto ignition temperature, so is sulfur vapor cloud and dust.
Thank you!
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Anyone who has experienced fillet weld toe cracking of duplex stainless steel? We just experienced one in our desalination unit. This happened most likely several years after commisioning. Appreciate to receive your inputs.
Thank you.
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I am currently working in a petroleum refining company. Anyone who knows preservation procedure for molten sulfur storage tanks? I've read that the tanks need to be purged with nitrogen and sealed. However, I am not sure if this implies that the tank needs to be pressurized. Sulfur...
