Single line representation is used up to 300NB. Single line symbols used in small-scale drawings and also used when the speed of execution is important.ĭouble line method in which double lines are drawn and spaced to represent the scaled nominal outside diameter of the pipeįlanges are drawn to scale and face to face dimensions of flanged valves represent the actual scaled dimensions of the valve Piping SymbolsĮvery symbol has a definite meaning as has every line.
Hence all piping designers to know about piping drafting basics. Inputs are required from various departments.ĭrawings generated by piping department contains information pertaining to different departments. Requires basic drafting knowledge of machine drafting, architectural drafting, map drafting.Ĭonsumes the major portion of the total design drafting manhours for process plants. This needs piping drafting basics, which covers in this blog. Piping drafting basics stands out as one in which the draftsman has great opportunities to express his knowledge of the uses of pipe and the best methods of representation.
