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MAWP vs MAOP vs Design Pressure : r AskEngineers - Reddit MAWP vs MAOP vs Design Pressure I've been confused by some of the numbers I've been seeing and hope you could clarify the different definitions for me MAWP - This seems to be based on your design code So it's the "don't exceed this" pressure but not the "it's gonna blow" pressure, right? "Design Pressure" - Equal to or less than the MAWP
A theory on why Archer says MAWP after hearing damage : r . . . - Reddit MAWP stands for Maximum Allowable Working Pressure, and is the maximum pressure that the weakest point of a system can handle When a gun, grenade, fog horn, or whatever goes off by his head, the high air pressure in the sound wave exceeds the MAWP of his ear and damages the weakest part, the eardrum
Mawp? : r ArcherFX - Reddit Mawp? How come every time there is a large explosion and Archer’s ears ring, he’s always going “mawp”? What does that do? Why does he say it? Archived post New comments cannot be posted and votes cannot be cast
r ChemicalEngineering on Reddit: Some clarification on ASME section I . . . Since the set pressure and MAWP aren’t always the same, the full lift is a % of set pressure not necessarily accumulation pressure In fact, on ASME 1 vessels one of the PSVs can be set at 3% above MAWP which is probably why they require full lift at 3% of set pressure
PRV design - why to let overpressure? : r ChemicalEngineering Depending on the contingency (blocked flow, fire, etc ), there is a % overpressure applied in the valve design Why is that so? If we let the PRV overpressure above the MAWP of the vessel, isnt that dangerous? Edit: Thanks everyone for the explanation Appreciate the discussion
Why would a rupture disk on a vessel be undersized well below the MAWP . . . For example, we have one vessel with a MAWP of 50 PSI @600 with a PRV set at 19 PSI and a rupture disc rated for 12 5 PSI @ 125*F I see ASME code is you can have a a set pressure of 16% above the vessel MAWP if it's a secondary device, which since this has both a PSV and RD, it's a secondary Why would the rupture disc be rated so low?
How Pressure increase during a hydrotest : r ChemicalEngineering - Reddit The MAWP is the max pressure at the top of the vessel This is done with the vessel in its normal position I have never hydro’d a tall column but I assume that you’d factor the static head into the pump discharge reading
Why is shell and tube MAWP different? : r engineering - Reddit Why is the maximum allowable working pressure different on the tube side and shell side of a shell and tube type heat exchanger? Example: I have a heat exchanger with shell side MAWP 400 psi of air and tube side MAWP 100 psi water How is the tube side rated only for 100 psi max pressure when there is 400 psi of external air pressure trying to crush the tubes?
Any idea about the order of Design Pressure (DP), MOP, MAWP, etc?? Design pressure and MAWP are essential the same thing Design pressure applies to piping systems and MAWP to pressure vessels For the most part these are the maximum pressures the components are designed to handle MOP would be lower than either of those pressures and is the maximum pressure would run your process at