BritishPipeThread(惠氏管螺纹)--圆柱(BSPP/BSPF)螺纹代号基本尺寸大径mmd=D螺距mmp每英寸牙数tpi中径mmd2=D2小径外螺纹d3牙型高度H1底孔尺寸mmG1/81/8"9
907289
7G1/41/4"13
3371912
6G3/83/8"16
3371915
85615G1/21/2"20
8141419
16219G5/85/8"22
8141421
75G3/43/4"26
8141425
5G7/87/8"30
8141429
16228G11"33
3091131
5G11/811/8"37
3091136
47935G11/411/4"41
3091140
5G13/813/8"44
3091142
5G11/211/2"47
3091146
47945G13/413/4"53
3091152
47951G22"59
3091158
47957G21/421/4"65
3091164
47963G21/221/2"75
3091173
5G23/423/4"81
3091180
47979G33"87