第1个回答 2013-01-17
NPT American Taper Pipe ThreadANSI B 1.20.1 American Taper Pipe Thread, with sealant compound. Nominal DiameterMajor DiameterTappingTPIPitchmmDrill Sizemm mm 1/16" NPT7,8956,00270,9411/8" NPT10,2428,25270,9411/4" NPT13,61610,70181,4113/8" NPT17,05514,10181,4111/2" NPT21,22317,40141,8143/4" NPT26,56822,60141,8141" NPT33,22828,5011,52,2091 1/4" NPT41,98537,0011,52,2091 1/2" NPT48,05443,5011,52,2092" NPT60,09255,0011,52,2092 1/2" NPT72,69965,5083,1753" NPT88,60881,5083,1753 1/2" NPT101,31694,3083,1754" NPT113,973107,0083,1755" NPT141,300134,38483,1756" NPT168,275161,19183,1758" NPT219,075211,67383,17510" NPT273,050265,31183,17512" NPT323,850315,79383,175