thank you for your concern and all tube thickness already checked and were accepted ,the issue is because the bundle is under ASME inspection AND they need evidences from code and i didnt find any at any codes telling what is the acceptance ratio for R=1D ,thank you
DEARS
I HAVE U TUBES FOR HEAT EXCHANGER WITH MORE DIFFERENT BEND RADIUS ,ALL MEASURED OVALITY(FLATNESS) FOR ALL KIND OF BEND RADIUS WAS IN TOLERANCE EXCEPT THAT RADIUS= 1 O.D. THE OVALITY MEASURES 14% WHICH IS OUT OF TOLERANCE AS PER TEMA (10%) IS THERE ANY STANDARD FOR U TUBES WITH R=1D AND...
Dear Sir,
I would ask you for the hardness measurements for tubes with material SA213 T22 ,the tubes are bent with 90° bent ,radius of bend is 50mm ,the tubes also welded to header with material SA 335 P11 ,the heat treatment had been issued for the material after bending and welding to 650°c...
