Piping 管路Pipingexternaltothediptankshouldbemadeofstainlesssteelschedule40 seamless"A",304stainlesssteelforpipesizeslessthan2.5"Dia. Tengaugeistypicalonpipesizesgreaterthan3"Dia. Whilemanymildsteelsystemscurrentlyexistandworkwell,stainlesssteelwillgivegreaterflexibilitywithfutureformulation