螺纹管件尺寸表1. 平头外丝（短管）国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)国际通用系列钢管(英制管) Inch Pipe公称通径 Nominal Diameter 外径 Outside DiameterD Sch40 STD Sch80 XS Sch160 XXSLDN NPS 8 1/4 13.5 ○ 60 90 120 150 18010 3/8 17.2 ○ 15 1/2 21.3 ○ ○ 20 3/4 26.7 ○ ○ 25 1 33.4 ○ ○ 32 1.1/4 42.2 ○ ○ 40 1.1/2 48.3 ○ ○ 50260.3○○国内沿用系列钢管(公制管) Metric Pipe公称通径 Nominal Diameter外径 Outside DiameterD 厚度 Thickness长度 LengthDN 10 14 2-560 90 120 150 18015 18 20 25 25 32 32 38 40 45 5057注：短管(英制管)有A 、B 、C 三种型式，短管(公制管)仅有C 型订货示例:A(NPT)1/2" Sch80 L150 304不锈钢(英制管),Φ18*2 L100 20钢(公制管)公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug andBushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex HeadHeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 25公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.0公称通径中心至端面外径壁厚螺纹长度AD Cmin弯头、三通、四通45°弯头DN NPS 2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB2000LB3000LB6000LB NPT Rc Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS Sch80 Sch160 XXS6 1/8 21 21 25 17 17 19 22 22 25 3.0 3.0 6.5 6.5 6.58 1/4 21 25 29 17 19 22 22 25 33 3.0 3.5 6.5 8.0 10.0 10 3/8 25 29 33 19 22 25 25 33 38 3.0 3.5 7.0 9.0 10.5 15 1/2 29 33 38 22 25 29 33 38 46 3.0 4.0 8.0 11.0 13.5 20 3/4 33 38 44 25 29 33 38 46 56 3.0 4.5 8.5 12.5 14.0 25 1 38 44 51 29 33 35 46 56 62 3.5 5.0 10.0 14.5 17.5 32 1.1/4 44 51 60 33 35 43 56 62 75 4.0 5.5 10.5 17.0 18.0 40 1.1/2 51 60 64 35 43 44 62 75 84 4.0 5.5 11.0 18.0 18.5 50 2 60 64 83 43 45 52 75 84 102 4.5 7.0 12.0 19.0 19.0 65 2.1/2 76 83 95 52 52 64 92 102 121 5.5 7.5 15.5 23.5 29.0 80 3 86 96 106 64 64 79 110 121 146 6.0 9.0 16.5 26.0 30.0 100 4 106 114 114 79 79 79 146 152 152 6.5 11.0 18.5 27.5 33.010.六角头内外螺纹接头（补芯）公称通径Nominal Diameter 螺纹长度Length ofThread方头管塞Square Head Plug圆头管塞Round Head Plug六角头管塞和接头Hex Head Plug and Bushing 方头高度Height ofSquare平面宽度Width OfFlats圆头直径Diameter ofRound Head全长Length平面宽度Width OfFlats六角头高度Hex Head HeightDN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100 4 32.0 25 63.5 114 76 117.5 13 2511.同径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 10 65 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/420 38 21 79 18 14 80 3 20 40 --- 100 70 63 80×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×253×120402585231912. 单头螺纹管箍公称通径Nominal Diameter 管箍、管帽长度 The Length of Coupling and Cap 外径 Outside Diameter 管帽顶厚 End Wall Thickness 螺纹长度 Length of Thread EFD Cmin DN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB B L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS 6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 1004121121687514015922.028.527.533.013.异径六角双丝头公称通径Nominal Diameter 尺寸SizeDN NPS H1 H2 H3 WDsch80 sch1606 1/8 6 10 --- 26 5 4 8 1/4 6 15 --- 367 6 8×6 1/4×1/8 6 15 10 31 5 4 10 3/8 8 16 --- 40 10 8 10×8 3/8×1/4 8 16 15 39 7 6 15 1/2 8 20 --- 48 13 10 15×10 1/2×3/8 8 20 16 44 10 8 15×8 1/2×1/4 8 20 15 43 7 6 20 3/4 10 21 --- 52 18 14 20×15 3/4×1/2 10 21 20 51 13 10 20×10 3/4×3/8 10 21 16 47 10 8 25 1 10 25 --- 60 23 19 25×20 1×3/4 10 25 21 56 18 14 25×15 1×1/2 10 25 20 55 13 10 32 1.1/4 12 25 --- 62 31 28 32×25 1.1/4×1 12 25 25 62 23 19 32×20 11/4×3/4 12 25 21 58 18 14 32×15 1.1/4×1/2 12 25 20` 57 13 10 40 11/2 16 26 --- 68 36 32 40×32 1.1/2×1.1/4 16 26 25 67 31 28 40×25 1.1/2×1 16 26 25 67 23 19 40×20 1.1/2×3/4 16 26 21 63 18 14 40×15 1.1/2×1/2 16 26 20 62 13 10 50 2 18 27 --- 72 47 40 50×40 2×1.1/2 18 27 26 71 36 32 50×32 2×1.1/4 18 27 25 70 31 28 50×25 2×1 18 27 25 70 23 19 50×20 2×3/4 18 27 21 66 18 14 50×15 2×1/2 18 27 20 65 13 1065 2.1/2 20 38 --- 96 57 5165×50 2.1/2×2 20 38 27 85 47 40 65×40 2.1/2×1.1/2 20 38 26 84 36 32 65×32 2.1/2×1.1/4 20 38 25 83 31 28 65×25 2.1/2×1 20 38 25 83 23 19 65×20 2.1/2×3/4 20 38 21 79 18 1480 3 20 40 --- 100 70 6380×65 3×2.1/2 20 40 38 98 57 51 80×50 3×2 20 40 27 87 47 40 80×40 3×1.1/2 20 40 26 86 36 32 80×32 3×1.1/4 20 40 25 85 31 28 80×25 3×1 20 40 25 85 23 1914.螺纹活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominal Dmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.015.双头螺纹管帽公称通径Nominal Diameter管箍、管帽长度The Length of Coupling and Cap外径Outside Diameter 管帽顶厚End Wall Thickness 螺纹长度Length of ThreadE F D CminDN NPS 3000LB 6000LB 3000LB 6000LB 3000LB 6000LB 3000LB 6000LBB L2 Sch160 XXS Sch160 XXS Sch160 XXS Sch160 XXS6 1/8 32 32 19 - 16 22 5.0 - 6.5 6.5 8 1/4 35 35 25 27 19 25 5.0 6.5 8.0 10.0 10 3/8 38 38 25 27 22 32 5.0 6.5 9.0 10.5 15 1/2 48 48 32 33 29 38 6.5 8.0 11.0 13.5 20 3/4 51 51 37 38 35 44 6.5 8.0 12.5 14.0 25 1 60 60 41 43 44 57 9.5 11.0 14.5 17.5 32 1.1/4 67 67 44 46 57 64 9.5 11.0 17.0 18.0 40 1.1/2 76 76 44 48 64 76 11.0 12.5 18.0 18.5 50 2 86 86 48 51 76 92 12.5 16.0 19.0 19.0 65 2.1/2 92 92 60 64 92 108 16.0 19.0 23.5 29.0 80 3 108 108 65 68 108 127 19.0 22.0 26.0 30.5 100 4 121 121 68 75 140 159 22.0 28.5 27.5 33.016.承插活接头公称通径Nominal Diameter外径OutsideDiameter壁厚Wall Thickness承插孔径SocketBore流通孔径Water way Bore承插孔深度Depth ofSocket公称装配长度Length AssemNominalDmin Cmin d1 d2 Jmin LDN NPS 承插焊Socket螺纹Threaded承插焊Socket螺纹Threaded承插焊Socket承插焊、螺纹Socket &Threaded承插焊Socket承插焊、螺纹Socket &Threaded6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.48 1/4 21.8 19.0 3.3 3.1 14.10 9.45 10 41.4 10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46.0 15 1/2 31.2 27.7 4.1 3.8 21.70 17.07 10 49.0 20 3/4 37.1 33.5 4.3 4.0 27.05 21.39 13 56.9 25 1 45.5 41.4 5.0 4.6 33.80 27.74 13 62.0 32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1 40 11/2 61.5 57.2 5.6 5.1 48.65 41.20 13 76.5 50 2 75.2 70.1 6.1 5.6 61.10 52.12 16 86.1 65 21/2 91.7 85.3 7.7 7.1 73.80 64.31 16 102.4 80 3 109.2 102.4 8.4 7.7 89.80 77.27 16 109.017. 圆头管塞公称通径Nominal Diameter 螺纹长度 Length of Thread 方头管塞Square Head Plug 圆头管塞 Round Head Plug 六角头管塞和接头 Hex Head Plug and Bushing 方头高度 Height of Square 平面宽度 Width Of Flats 圆头直径 Diameter of Round Head全长 Length 平面宽度 Width Of Flats 六角头高度 Hex Head Height DN NPS L2min Bmin Cmin D Lmin S Kmin Hmin 6 1/8 9.5 6 7.0 10 35 11.0 - 6 8 1/4 11.0 6 9.5 13 41 16.0 3 6 10 3/8 12.5 8 11.0 17 41 17.5 4 8 15 1/2 14.5 10 14.5 21 44 22.0 5 8 20 3/4 16.0 11 16.0 27 44 27.0 6 10 25 1 19.0 13 20.5 33 51 35.0 6 10 32 1.1/4 20.5 14 24.5 43 51 44.5 7 14 40 1.1/2 20.5 16 28.5 48 51 51.0 8 16 50 2 22.0 17 33.5 60 64 63.5 9 17 65 2.1/2 27.0 19 38.0 73 70 76.0 10 19 80 3 28.5 21 43.0 89 70 89.0 10 21 100432.02563.511476117.51325。