We have number of PSV systems in an 1970's refinery where the client is adding isolation valves on inlet and outlet lines of the PSV's. We want to know if we require to do stress analysis for these systems where isolation valves are added. if yes then is there any clause or section in ASME 31.3...
people i have one mre query, AWWA M11 says when calc. thickness on operating press. the design stress should be 50% of the minimum yeild strngth of steel and while calc. thickness for operating + transient/surge pressure it should be 75% of the yeild strength of steel
i want to know the reason...
Can anyone help me out with a detail procedure or may be a spread sheet to calculate the Pipe thickness for underground pipes as per AWWA need it very urgently please help pipe material API 5L
can anyone tell me a reference or any literature where in there are various material compositions and what effect does every element added to the base material have on the properites of the subsequent alloy.
i have some piping items(valves and other stuff) for which the hydro testing is done by kerosene instead of water so can anyone tell me why they dont use water.
hi,
i wanted to know wether a tilting wafer type check valve can be placed in vertical position when the flow is from top. actually its a nitrogen purging conn. with a check valve.
please help me out.
deepblue76
hi,
can anybody tell me what is the general configuration of the piperack wrt to line size and service and also which services should be on top tier and which should be on the bottom.
hi all
i wanted to know that how do i assume the main header size if i have say 6 tappings. does this have any criteria or a specification. please help me out
