管道內(nèi)外徑對照表-dn2600外徑

1、鋼管與塑料管規(guī)格實(shí)際選用對應(yīng)表鍍鋅鋼管塑料管及金屬復(fù)合管帶嵌件的塑料管件公稱直徑（DN）公稱外徑（dn/Dn）管件內(nèi)徑為管螺紋公制英制151/2（四分管）2020M/2203/4（六分管）2525X3/4251（一寸管）3232X1321?（寸二管）4040M?401?（寸半管）5050M?502（二寸管）6363X652?7575X2?803901004110100412515061602008200200822525010250300123153501435540016400450184505002050060024630NBDNOutsideDiameter一ISOMetric（Outs

2、ideDiameter）1/2”1521.4203/4”2026.7251"2533.63211/4”一3242.24011/2”一4048.3502"-5060.36321/2”一6575.2753"-8088.9904"-100114.3110DN-公稱直往一外徑DN15-（J）22mm,DN20-627mmDN25-634mm,DN32-642mmDN40-648mm,DN50-660mmDN65-676（73）mm,DN80-689mmDN100-6114mm,DN150-6168mm,DN250-6273mm,DN125-6140mmDN200

3、-（J）219mmDN300-6324mmDN350-DN450-DN600-3360mm,4457mm,6610mm,DN400-6406mmDN500-6508mmDN15-418mm,DN20-625mmDN25-（J）32mm,DN40-645mm,DN65-673mm,DN32-638mmDN50-657mmDN80-689mmDN100-6108mm,DN150-6159mm,DN250-6273mm,DN350-6377mm,DN450-6480mm,DN125-6133mmDN200-（J）219mmDN300-6325mmDN400-6426mmDN500-6530mmDN6

4、00-6630mm,管道支架計(jì)算重量序號管道規(guī)格支架重量1DN401.83Kgm2DX503DN-0l.SRm4DN801.9"Kgm5DN1002.30Kgm6DN1252.14由m7DN1592.3m8DN1942.8SKgm9DN219二m10DN245331Kgm11DN2733.5-Rgm12DN3254.59Kgm13DN37714DN426616Rgm問題：求PVCt道的內(nèi)外徑對照表!管公稱內(nèi)徑尺寸美標(biāo)SCH80美標(biāo)SCH40英標(biāo)BS3505國標(biāo)DIN化工管日標(biāo)JISK6741DNinch平均外徑最小壁厚平均外徑最小壁厚外徑最小壁厚外徑最小壁厚外徑壁厚103/8&quo

5、t;17.151.3182.5151/2"21.33.721.32.7721.351.7202.3223203/4"26.73.926.72.8726.751.9252.8263251"33.44.633.43.3833.552.2323.6323.5321+1/4"42.24.942.23.5642.252.7403383.5401+1/2"48.35.148.33.6848.253.1503.7484502"60.35.560.33.9160.353.9634.7604.5652+1/2"737.1735.16755.5

6、764.5803"88.97.688.95.4988.95.7906.6895.91004"114.38.6114.36.02114.37.31108.11147.11255"141.39.5141.36.55140.2914010.31407.51506"168.311168.37.11168.2510.816011.81659.62008"219.112.7219.18.18219.112.62>0016.62161125010"273.115.1273.19.2727315.72>5018.426713.630012

7、"329.917.5329.910.31323.858.731523.231816.435014"355.619.1355.611.13555.520.53；5526.140016"406.421.4406.412.74()6.423.442029.445018"457.223.8457.214.2750020"508.026.2508.015.0660024"609.630.9609.617.45設(shè)備筒體或管道絕熱、防潮和保護(hù)層計(jì)算公式V=tt*（D+1.0336）*1.0336*LS=Tt*（D+2.16+0.0082）*L式中D

8、直徑（nj）1.033、2.1調(diào)整系數(shù)6絕熱層厚度（nj）l設(shè)備筒體或管道長度（n0.0082捆扎線直徑或鋼帶厚（nj）補(bǔ)充一下：絕熱工程量。(1)設(shè)備筒體或管道絕熱、防潮和保護(hù)層計(jì)算公式：V=兀X(D+1.0336)X1.0336個(gè)人理解上述體積公式的含義：D+1.0336表示：保溫層中心到中心的長度+單根的扎帶厚度(0.0336)=調(diào)整后的保溫層中心線長度冗X(D+1.0336)表示：保溫層中心圓的周長(可想象成長度，僅管是圓形)1.0336表示：保溫層調(diào)整過系數(shù)的厚度(可想象成寬度)九X(D+1.0336)X1.0336表示：長度*寬度S=兀X(D+2.16+0.0082)XL個(gè)人理解：

9、D+2.16+0.0082表示：(直徑+保溫層厚度*2.1)+0.0082=外表層實(shí)際直徑+扎帶厚度式中D直徑1.033、2.1調(diào)整系數(shù)；6絕熱層厚度；L設(shè)備筒體或管道長；0.0082捆扎線直徑或鋼帶厚。伴熱管道絕熱工程量計(jì)算式：單管伴熱或雙管伴熱(管徑相同，夾角小于900時(shí))。D'=D1+D2+(1020mm)式中D'伴熱管道綜合值；D1主管道直徑；D2伴熱管道直徑；(1020mm-一主管道與伴熱管道之間的間隙。雙管伴熱(管徑相同，夾角大于900時(shí))。D'=D1+1.5D2+(1020mm)雙管伴熱(管徑不同，夾角小于90°時(shí))=D1+D伴大+(1020mm

10、)式中D'伴熱管道綜合值；D1主管道直徑。將上述D'計(jì)算結(jié)果分別代入相應(yīng)公式計(jì)算出伴熱管道的絕熱層、防潮層和保護(hù)層工程量。(3) 設(shè)備封頭絕熱、防潮和保護(hù)層工程量計(jì)算式。V=(D+1.0336)/22兀X1.0336X1.5XNS=(D+2.16)/22X7TX1.5XN(4) 閥門絕熱、防潮和保護(hù)層計(jì)算公式。V=兀(D+1.0336)X2.5DX1.0336X1.05XNS=tt(D+2.16)X2.5DX1.05XN(5) 法蘭絕熱、防潮和保護(hù)層計(jì)算公式。V=兀(D+1.0336)X1.5DX1.0336X1.05XNS=兀X(D+2.16)X1.5DX1.05XN(6)

11、彎頭絕熱、防潮和保護(hù)層計(jì)算公式。V=兀(D+1.0336)X1.5DX2兀X1.0336義N/BS=kX(D+2.16)X1.5DX2兀XN/B(7) 拱頂罐封頭絕熱、防潮和保護(hù)層計(jì)算公式。V=2：trX(h+1.0336)X1.0336S=2：trX(h+2.16)1f=DN25徑與魚科管外程時(shí)I*'1F；1-f、亨、LU/1'd.3z-%f,.=J1代口KUA產(chǎn)1-分水財(cái)管外徑-匚TCJqp405cw'w90_19;、：1TJ3：)fi/'rf.J.1：-0(：琲木顰君管外名1：n門，5375f-p!3管道地溝底寬計(jì)算表表1-6附表管徑鑄鐵管、鋼管、石棉混凝土、鋼筋混凝土，預(yù)應(yīng)陶土管(MM)水泥管(MM)力混凝土管(MM)50-70600