can someone please tell me why a nozzle and gate valve have same symbol in p&id, and how can we differentiate them? and also can someone post a guide how to read fabrication iso drawing and p&id complete symbol char
I want to write a preliminary wps for flange (MS thickness 20mm) to a pipe ( MS thickness 8mm), i was referring to D10.12M/D10.12:2000, Guide for Welding Mild Steel Pipe. but there is no information on fillet weld. Do we have to run tensile and bend test on test coupon?