彎頭三通理論重量

外徑（mm）中心距至端 面的距離 dninchd1*d2h5s10s20s40s80s120s 120*153/4*1/225*1826.7*21.3380.030.040.040.040.0490.050.050.060.070.07 225*201*3/432*2533.4*26.7510.060.060.090.100.110.110.110.110.140.15 325*151*1/232*1833.4*21.3510.050.060.080.090.090.100.090.100.120.13 432*251.1/4*138*3242.2*33.4510.070.080.110.120.1250.1370.140.150.180.20 53

外徑（mm）中心距至端 面的距離 dninchd1*d2h5s10s20s40s80s120s 120*153/4*1/225*1826.7*21.3380.030.040.040.040.0490.050.050.060.070.07 225*201*3/432*2533.4*26.7510.060.060.090.100.110.110.110.110.140.15 325*151*1/232*1833.4*21.3510.050.060.080.090.090.100.090.100.120.13 432*251.1/4*138*3242.2*33.4510.070.080.110.120.1250.1370.140.150.180.20 53

外徑（mm）中心距至端 面的距離 dninchd1*d2h5s10s20s40s80s120s 120*153/4*1/225*1826.7*21.3380.030.040.040.040.0490.050.050.060.070.07 225*201*3/432*2533.4*26.7510.060.060.090.100.110.110.110.110.140.15 325*151*1/232*1833.4*21.3510.050.060.080.090.090.100.090.100.120.13 432*251.1/4*138*3242.2*33.4510.070.080.110.120.1250.1370.140.150.180.20 53

外徑（mm）中心距至端 面的距離 dninchd1*d2h5s10s20s40s80s 120*153/4*1/225*1826.7*21.3380.030.040.040.040.0490.050.050.060.070.07 225*201*3/432*2533.4*26.7510.060.060.090.100.110.110.110.110.140.15 325*151*1/232*1833.4*21.3510.050.060.080.090.090.100.090.100.120.13 432*251.1/4*138*3242.2*33.4510.070.080.110.120.1250.1370.140.150.180.20 532*20

33.544.555.566.5789101112 說 明： 250.050.060.070.080.090.10.110.12 270.060.070.080.090.10.110.120.13 320.10.110.130.140.160.170.180.19 340.110.120.140.150.170.180.190.2 390.130.130.170.190.210.230.250.27 420.140.170.190.210.230.250.280.29式中 s=大 端壁 450.190.220.230.280.310.340.370.40.43 d=小 端外 480.20.230.270.30.330.360.340.

三通彎頭理論重量表

彎頭、三通理論重量

彎頭、三通理論重量

標準:dd1301普通大小頭 δ=3δ=4δ=4.5δ=5δ=6δ=8δ=9δ=10δ=11δ=12δ=14 1500*400530*42630010.514.015.817.521.028.031.535.038.542.049.0 2600*500630*53030012.817.119.221.325.634.138.442.746.951.259.7 3700*600720*63030014.919.922.424.829.839.744.749.754.659.669.5 4800*700820*72030017.122.825.728.434.245.651.357.062.768.479.8 5900*800920*82030019.

產(chǎn)品名稱口徑普標國標產(chǎn)品名稱口徑普標國標產(chǎn)品名稱口徑普標國標產(chǎn)品名稱口徑普標國標 22*3.548*489*4159*8 25*348*589*5165*5 25*3.548*689*6165*6 25*448*989*8165*8 32*3.557*4108*4219*6 32*457*5108*5219*8 36*657*6108*8273*8 38*3.560*3114*4325*8 38*460*4114*5377*8 沖壓彎頭42*3沖壓彎頭60*5沖壓彎頭114*8沖壓彎頭426*8 42*3.560*6133*5478*8 42*460*8133*8529*8 42*576*4140*5529*10 48*376*5140*8630*8 48*3.576

直徑 mm33.544.555.566.5 18~220.060.070.070.090.10 250.100.110.120.140.150.160.17 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.24 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.38 420.220.250.280.310.340.370.400.42 450.290.340.380.420.460.500.540.58 480.310.360.410.450.500.540.590.63 510.

直徑 mm33.544.555.566.5789101112說明: 18~220.060.070.070.090.10 250.100.110.120.140.150.160.171、180°彎頭按表2倍計算，45°按1/2計算； 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.242、r1.0dn彎頭重量按表2/3計算； 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.380.403、表中未列出壁厚的重量，可取與之相近的兩個重量計算平均值； 420.220.250.280.310.340

直徑 mm33.544.555.566.5 18~220.060.070.070.090.10 250.100.110.120.140.150.160.17 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.24 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.38 420.220.250.280.310.340.370.400.42 450.290.340.380.420.460.500.540.58 480.310.360.410.450.500.540.590.63 510.

直徑 mm33.544.555.566.5 18~220.060.070.070.090.10 250.100.110.120.140.150.160.17 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.24 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.38 420.220.250.280.310.340.370.400.42 450.290.340.380.420.460.500.540.58 480.310.360.410.450.500.540.590.63 510.

直徑 mm33.544.555.566.5789101112說明: 18~220.060.070.070.090.10 250.100.110.120.140.150.160.17 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.24 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.380.40 420.220.250.280.310.340.370.400.420.46 450.290.340.380.420.460.500.540.580.620.69 480.310

直徑 mm33.544.555.566.57891011 18~220.060.070.070.090.10 250.100.110.120.140.150.160.17 270.110.120.140.150.160.170.18 320.130.150.160.180.200.210.230.24 340.140.150.180.200.210.230.250.26 380.200.220.250.280.310.330.360.380.40 420.220.250.280.310.340.370.400.420.46 450.290.340.380.420.460.500.540.580.620.69 480.310.360.4

通風工程設(shè)計預算及施工用料計量時,對于變徑彎頭及大小頭等部件的表面積,是按規(guī)定的數(shù)學計算式計算的。計算過程繁瑣復雜。為了解決這一問題,現(xiàn)介紹一種通風管件中變徑圓彎頭及圓大小頭的表面積速算式:1.變徑圓彎頭表面積速算式的推導

直徑 mm33.544.555.566.5789101112說明: 18~22 250.170.180.200.210.22 270.180.200.210.230.24 320.300.330.350.380.400.420.44 340.320.350.370.400.430.450.48 380.460.510.550.590.630.670.71 420.510.560.610.660.700.740.780.830.86 450.670.730.800.860.920.971.031.081.14 480.710.780.850.910.981.041.101.161.22 51 570.951.051.141.231.32

偏心變徑的作用 偏心大小頭兩端管口直徑不同，用于連接不同直徑的管子或法蘭進行變徑。偏心大小頭的兩端 管口，圓心在同一軸線上，變徑的時候，以軸線計算管子位置的話，管子的位置不變，一般用 于氣體或垂直的液體管道變徑。 偏心大小頭兩端管口圓周內(nèi)切，一般用于水平的液體管道。偏心大小頭的管口切點向上的時候， 稱為頂平安裝，一般用于泵入口，利于排氣 ，切點向下成為底平安裝，一般用于調(diào)節(jié)閥的安裝，利用排凈。偏心大小頭有利于流體流動， 在變徑的時候?qū)α黧w流態(tài)的干擾較小，因此氣體和垂直流動的液體管道使用同心異徑管變徑。 偏心大小頭由于一側(cè)是平的，利于排氣或者排液，方便開車和檢修，因此水平安裝的液體管道 一般用偏心異徑管。 底平flatonbottom(fob) 頂平flatontop（fot） 大小頭只有同心和偏心之分，頂平和底平只是偏心大小頭的一種安裝方法。 所以應該說偏心大小

6 同心大小頭 ×× 通徑 dn 外徑 d0×d0 l3l1l2t/t 重量 w 鋼板(q235a) s(壁厚) 50×2557×3212834393/2.53 50×3257×3812834393/2.53 50×4057×4512834393/33 65×3276×3816839443.5/2.53.5 65×4076×4516839443.5/33.5 65×5076×5716839443.5/33.5 80×4089×4516839444/34 80×5089×5716839444/34 80×6589×7616839444/3.54 100×50108×5717839444.5/34.5 100×6510

a 12.512.5 ? a 放大 12.5 37.5°±2.5° 1.6±0.8 設(shè)計 揚州東安管件有限公司大小頭校對 審核 材質(zhì)：20# 工藝圖樣標記數(shù)量比例 標準化1 鋼制管件 日期共1頁第1頁 da—002 c