等径、异径三通 公称通径 Nominal Diameter 坡口处外径 Outside Diameter 中心至端面 Center to End D1 D2 DN NPS A 系列 Series A B 系列 Series B A 系列 Series A B 系列 Series B C M 15×15×15 1/2×1/2×1/2 21
3 18 21
3 18 25 25 15×15×10 1/2×1/2×3/8 21
3 18 17
3 14 25 25 15×15×8 1/2×1/2×1/4 21
3 18 13
7 10 25 25 20×20×20 3/4×3/4×3/4 26
9 25 26
9 25 29 29 20×20×15 3/4×3/4×1/2 26
9 25 21
3 18 29 29 20×20×10 3/4×3/4×3/8 26
9 25 17
3 14 29 29 25×25×25 1×1×1 33
7 32 33
7 32 38 38 25×25×20 1×1×3/4 33
7 32 26
9 25 38 38 25× 25× 15 1× 1× 1/2 33
7 32 21
3 18 38 38 32× 32× 32 1
1/4× 1
1/4× 1
1/4 42
4 38 42
4 38 48 48 32× 32× 25 1
1/4× 1
1/4× 1 42
4 38 33
7 32 48 48 32× 32× 20 1
1/4× 1
1/4× 3/4 42
4 38 26
9 25 48 48 32× 32× 15 1
1/4× 1
1/4× 1/2 42
4 38 21
3 18 48 48 40× 40× 40 1
1/2× 1
1/2× 1
1/2 48
3 45 48
3 45 57 57 40× 40× 32 1
1/2× 1