Exisiting and old drawings is a good place to get an idea of what the companny wants in a drawing and you can build from there..Cde and other texts can follow...And yes i am agreeing with the others...bother the Seniors..Thats what they are getting the big bucks for..!!!
I need some help or advice here. I am performing hydro testing on piping systems using dual pen recorders (one for pressure and one for temperature) and charts together with pressure gauges. What we are seeing isa that in some instances, the pressure drops by 2% of test pressures ( Three...
can any one tell me why in some plant designs, the piping is designed using schdule and in the same plant, other piing is designed using wall thickness?
Can anyone tell me if when a hole (1/2" npt) is drilled and tapped in a blind flange for hydro testing purposes if the flange is derated and to what rating? 36" 3003 BF; any info please
I need to clarify an issue w.r.t my project testing specifications and standard practice in the industry. Is it recommended or standard practice to test through a PCV (Pressure Control Valve?)
I know this may be a generic and easy question but w.r.t. testing pressures for piping either as per B 31.3 or 31.8, what is the hydro test pressre? is it 1.5 x class of the line e.g 600# line would be tested at 900 psig? or is it 1.5 x the maximum rated pressure of the materials for a certain...
Can any one tell me what are the determining factors if i am about to hot tap on a longitudinal seam on a gas pipeline? what checks on the seam do i need to perform prior to cutting?
Does anyone know here i can get documentation on how much inches from a raised face on a WN flange can be removed while staying within code tolerances? I know the rule of thumb is 1/16"....
