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螺比试管件中的螺纹型式为GB/T 12716(ANSI/ASME B1.20.1)中的60°圆锥管螺纹NPT；如采用其它型式的螺纹请在订货时注明。 The standards and codes of the threaded fittings is conical threaded NPT angle 60°of GB/T 12716(ANSI/ASME B1.20.1),and if requiring other types of thread,please indicate them in the purchased order. 螺比试管件的尺寸极限偏差 Tolerances for Threaded Fittings 90°、45°弯头、三通、四通 公称通径 Nominal Pipe Size 90°&45°Elbows & Tees & Crosses 中心至端面 Center to End DN 6-8 10-20 NPS 1/8-1/4 3/8-3/4 A ±0.7 ±1.5 双接口管箍、管帽 Couplings、Caps 端面至端面 End to End E、F ±0.7 ±1.5 单接口管箍、半管接头 Half- Couplings、Boss 端面至端面 End to End E/2 ±0.4 ±0.8 25-50 65-100 1-2 21/2-4 ±2.0 ±2.5 ±2.0 ±1.0

六角头双丝头 Hexagonal Nipples 公称通径 Nominal Pipe Size 尺寸 Size DN NPS C E1 E2 W sch80 D sch160 4 6 4 6 8 8×6 1/8 1/4 1/4×1/8 6 6 6 10 15 15 --- --- 10 26 36 31 5 7 5 10 10×8 15 15×10 15×8 20 20×15 20×10 3/8 3/8×1/4 1/2 1/2×3/8 1/2×1/4 3-4 3/4×1/2 3/4×3/8 8 8 8 8 8 10 10 10 16 16 20 20 20 21 21 21 --- 15 --- 16 15 --- 20 16 40 39 48 44 43 52 51 47 10 7 13 10 7 18 13 10 8 6 10 8 6 14 10 8 25 25×20 25×15 1 1×3/4 1×1/2 10 10 10 25 25 25 --- 21 20 60 56 55 23 18 13 19 14 10 32 32×25 32×20 32×15 11/4 11/4×1 11/4×3/4 11/4×1/2 12 12 12 12 25 25 25 25 --- 25 21 20` 62 62 58 57 31 23 18 13 28 19 14 10 40 40×32 40×25 40×20 40×15 11/2 11/2×11/4 11/2×1 11/2×3/4 11/2×1/2 16 16 16 16 16 26 26 26 26 26 --- 25 25 21 20 68 67 67 63 62 36 31 23 18 13 32 28 19 14 10 50 50×40 50×32 50×25 50×20 2 2×11/2 2×11/4 2×1 2×3/4 18 18 18 18 18 27 27 27 27 27 --- 26 25 25 21 72 71 70 70 66 47 36 31 23 18 40 32 28 19 14 50×15 65 65×50 65×40 65×32 65×25 65×20 2×1/2 21/2 21/2×2 21/2×11/2 21/2×11/4 21/2×1 21/2×3/4 18 20 20 20 20 20 20 20 20 20 20 20 20 27 38 38 38 38 38 38 20 --- 27 26 25 25 21 65 96 85 84 83 83 79 13 57 47 36 31 23 18 10 51 40 32 28 19 14 80 80×65 80×50 80×40 80×32 80×25 3 3×21/2 3×2 3×11/2 3×11/4 3×1 40 40 40 40 40 40 --- 38 27 26 25 25 100 98 87 86 85 85 70 57 47 36 31 23 63 51 40 32 28 19 ·螺纹型式为GB/T 12716(ANSI/ASME B1.20.1)中的60°圆锥管螺纹NPT;如采用其它型式的螺纹请在订货时注明. ·The standards and codes of the fittings is conical threaded NPT angle 60°of GB/T 12716(ANSI/ASME B1.20.1),and if requiring other types of thread,please indicate them in the purchased order.