（精選）英寸對(duì)照表

1、管件尺寸英寸毫米對(duì)照表 管根據(jù)使用環(huán)境和壓力公稱(chēng)壓力不同，相同公稱(chēng)通徑的管子可能有不同的管徑，希望說(shuō)明使用條件和公稱(chēng)壓力PN，以及溫度-壓力額定值(Pressure/temperatureRatings) 并且，不同材質(zhì)的管在相同的公稱(chēng)壓力下，也可能有不同的外徑 公稱(chēng)直徑(nominaldiameter)，又稱(chēng)平均外徑(meanoutsidediameter)。 這是緣自金屬管的管璧很薄，管外徑與管內(nèi)徑相差無(wú)幾，所以取管的外徑與管的內(nèi)徑之平均值當(dāng)作管徑稱(chēng)呼。 因?yàn)閱挝挥泄?mm)及英制(inch)的區(qū)分，所以有下列的稱(chēng)呼方法。 1.以公制(mm)為基準(zhǔn)，稱(chēng)DN(metricunit) 2.以

2、英制(inch)為基準(zhǔn)，稱(chēng)NB(inchunit) 3.DN(nominaldiameter) NB(nominalbore) OD(outsidediameter) 4.【例】 鍍鋅鋼管DN50，sch20 鍍鋅鋼管NB2”，sch20 5.外徑與DN，NB的關(guān)系如下： DN(mm)-NB(inch)-OD(mm) 15-1/2-21.3 20-3/4-26.7 25-1-33.4 32-11/4-42.2 40-11/2-48.3 50-2-60.3 65-21/2-73.0 80-3-88.9 100-4-114.3 125-5-139.8 150-6-168.3 200-8-219.1

3、 英寸對(duì)照表外徑壁厚重量英寸毫米.單位毫米.英寸.公斤/米.磅/英尺.1/810.310S1.240.0490.280.191/810.3STD-401.730.0680.370.251/810.3XS-802.410.0950.480.321/413.710S1.650.0650.50.341/413.7STD-402.240.0880.640.431/413.7XS-803.020.1190.810.553/817.110S1.650.0650.640.433/817.1STD-402.310.0910.850.573/817.1XS-803.20.1261.110.751/221.35S

4、1.050.0420.530.361/221.310S2.110.0831.010.681/221.3STD-402.770.1091.280.861/221.3XS-803.730.1471.631.11/221.31604.780.1881.971.331/221.3XXS7.470.2942.571.733/426.75S1.650.0651.030.693/426.710S2.110.0831.290.873/426.7STD-402.870.1131.71.143/426.7XS-803.910.1542.221.493/426.71605.560.2192.931.973/426.

5、7XXS7.820.3083.682.48133.45S1.650.0651.310.88133.410S2.770.1092.121.42133.4STD-403.380.1332.531.7133.4XS-804.550.1793.272.18133.41606.350.254.282.88133.4XXS9.090.3585.513.711 1/442.25S1.650.0651.671.121 1/442.210S2.770.1092.721.831 1/442.2STD-403.560.143.432.311 1/442.2XS-804.850.1914.513.031 1/442.

6、21606.350.255.673.811 1/442.2XXS9.70.3827.855.281 1/248.35S1.650.0651.921.291 1/248.310S2.770.1093.142.111 1/248.3STD-403.680.1454.092.751 1/248.3XS-805.080.25.473.681 1/248.31607.140.2817.324.921 1/248.3XXS10.150.49.656.49260.35S1.650.0652.411.62260.32.110.0833.062.06260.310S2.770.1093.972.67260.33

7、.180.1254.523.04260.3STD-403.910.1545.493.69260.3XS-805.540.2187.565.08260.31608.740.34411.237.55260.3XXS11.070.43613.589.132 1/2735S2.110.0833.732.512 1/27310S3.050.125.323.572 1/273304.780.1888.125.462 1/273STD-405.160.2038.725.862 1/273XS-807.010.27611.527.742 1/2731609.530.37515.0810.142 1/273XX

8、S14.020.55220.613.84388.95S2.110.0834.563.07388.92.770.1095.954388.910S3.050.126.524.38388.93.180.1256.794.56388.93.580.1417.615.12388.93.960.1568.385.63388.9STD-405.490.21611.417.67388.9XS-807.620.315.4310.37388.916011.130.43821.5614.49388.9XXS15.240.627.9618.793 1/2101.65S2.110.0835.233.523 1/2101

9、.610S3.050.127.495.033 1/2101.6304.780.18811.537.753 1/2101.6STD-405.740.22613.719.213 1/2101.6XS-808.080.31818.8312.654114.35S2.110.0835.93.974114.310S3.050.128.465.684114.33.180.1258.815.924114.33.960.15610.897.324114.34.370.17211.978.054114.34.780.18813.048.764114.35.160.20314.039.434114.35.560.2

10、1915.0610.624114.3STD-406.020.23716.2410.914114.36.350.2517.0811.484114.37.140.28119.0612.814114.37.920.31220.9914.114114.3XS-808.560.33722.5515.154114.312011.130.43828.6119.234114.316013.490.53133.8822.774114.3XXS17.120.67441.4527.855141.33.960.15613.559.115141.34.780.18816.2610.935141.35.560.21918

11、.812.635141.3STD-406.550.25821.9914.785141.37.140.28123.8616.045141.37.920.31226.3217.695141.3XS-809.530.37531.2821.025141.312012.70.540.6927.345141.316015.880.62549.6233.345141.3XXS19.050.7558.0138.986168.34.370.17217.8411.996168.34.780.18819.4713.096168.35.160.20320.9714.096168.35.560.21922.5415.1

12、56168.36.350.2525.6217.226168.3STD-407.110.2828.5519.196168.37.920.31231.6421.266168.38.740.34434.7423.356168.39.530.37537.6925.336168.3XS-8010.970.43242.9928.896168.312.70.549.2333.086168.312014.270.56254.7536.796168.315.880.62560.340.526168.316018.260.71968.2545.866168.319.050.7570.8547.616168.3XX

13、S21.950.86480.0253.776168.322.230.87580.8754.348219.14.780.18825.5217.158219.15.160.20327.518.488219.15.560.21929.5819.888219.1206.350.2533.6522.618219.1307.040.27737.1924.998219.17.920.31241.66288219.1STD-408.180.32242.9828.888219.18.740.34445.830.788219.19.530.37549.7533.438219.16010.310.40653.623

14、6.038219.111.130.43857.6638.758219.1XS-8012.70.565.343.888219.114.270.56272.8148.938219.110015.090.59476.6951.538219.115.880.62580.3154.028219.112018.260.71991.3661.398219.119.050.7594.9363.798219.114020.620.812101.9568.518219.1XXS22.230.875108.9673.228219.116023.010.906112.475.598219.125.41122.5682

15、.36102734.780.18831.9421.46102735.160.20334.4323.14102735.560.21937.0424.8910273206.350.2542.1828.34102737.090.27946.9731.5610273307.80.30751.5334.63102738.740.34457.3438.6610273STD-409.270.36560.940.921027311.130.43872.6148.7910273XS-6012.70.582.3555.341027314.270.56291.9261.8102738015.090.59496.95

16、65.151027315.880.625101.7168.351027310018.260.719115.8777.861027320.620.812129.6487.111027312021.440.844134.3590.281027322.230.875138.8793.321027323.830.938147.9199.3910273XXS-14025.41156.66105.221027316028.581.125174.01116.931027331.751.25190.81128.2212323.8206.350.2550.2233.7512323.87.140.28156.32

17、37.8512323.87.920.31262.3241.8812323.8308.380.3365.8544.2312323.88.740.34468.646.112323.8STD9.530.37574.6150.1312323.84010.310.40680.5154.112323.811.130.43886.6958.2512323.8XS12.70.598.4266.1412323.86014.270.562110.0373.9412323.815.880.625121.8181.8512323.88017.480.688133.3889.6312323.819.050.7514.6

18、297.1812323.820.620.812155.73104.6512323.810021.440.844161.48108.5112323.823.830.938178.07119.6512323.8XXS-12025.41188.8126.8712323.826.971.062199.4213412323.814028.581.125210.18141.2312323.831.751.25230.98155.2112323.816033.321.312241.1162.0114355.6106.350.2555.2537.1314355.6207.920.31268.646.114355.68.740.34475.5250.7514355.6STD-309.530.37582.1655.2114355.610.310.40688.6859.5914355.64011.130.43895.5164.1814355.6XS12.70.5108.4872.914355.614.270.562121.3381.5314355.66015.090.59412886.0114355.68019.050.75159.71107.3214355.610023.830