I have been scrutinising the codes to find the answer to the following question.
According to API-STD-521 sect 4.1, pressure-relieving devices are installed to ensure that a process system or any of its components is not subjected to pressures that exceed the maximum allowable accumulated...
It is well known that a PSV does not provide any protection against failure due to fire on an unwetted vessel. Many recognised companies practice not to install PSVs on unwetted vessel if fire is the only contingency.
Does anyone know of any officel reference, ASME clause or other codes that...