水管保温材料面积及周长适用水管型号5mm10mm15mm20mm25mm30mm无缝钢管镀锌钢管公称直径英寸公称直径英寸L+10cmL+10cmL+10cmL+10cmL+10cmL+10cmDN151/2"392.594.2942125.61648.51572512188.43532.5219.84710251.2DN151/2"423.9100.481004.8131.881742.7163.282637.6194.683689.5241.784898.4257.48DN203/4"471109.91099141.31884172.72790204.13925235.55181266.9DN203/4"518.1119.321193.2150.722025.3182.123014.4213.524160.5244.925463.6276.32DN251"580.9131.881318.8163.282213.7194.683265.6226.084474.5257.485840.4288.88DN251"628141.31413172.72355204.13454235.54710266.96123298.3DN3211/4"675.1150.721507.2182.122496.3213.523642.4244.924945.5276.326405.6307.72DN3211/4"737.9163.281632.8194.682684.7226.083893.6257.485259.5288.886782.4320.28DN4011/2"785172.71727204.12826235.54082266.95495298.37065329.7DN4011/2"832.1182.121821.2213.522967.3244.924270.4276.325730.5307.727347.6339.12DN4513/4"879.2191.541915.4222.943108.6254.344458.8285.745966317.147630.2348.54DN502"973.4210.382103.8241.783391.2273.184835.6304.586437335.988195.4367.38DN502"1020.5219.82198251.23532.5282.650243146672.5345.48478376.8DN6521/2"DN6521/2"1271.7270.042700.4270.044286.1332.846028.8364.247928.5395.649985.2427.04DN803"DN803"1475.8310.863108.6342.264898.4373.666845.2405.068949436.4611209.8467.86DN1004"1774.1370.523705.2401.925793.3433.328038.4464.7210440.5496.1212999.6527.52DN1004"1868.3389.363893.6420.766075.9452.168415.2483.5610911.5514.9613564.8546.36DN1255"2166.6449.024490.2480.426970.8521.249608.4543.2212403574.6215354.6615.44DN1255"2276.54714710502.47300.5533.810048565.212952.5596.616014628DN1506"2574.8530.665306.6562.068195.4593.4611241.2624.8614444656.2617803.8687.66DN1506"2716.1558.925589.2590.328619.3621.7211806.4653.1215150.5684.5218651.6715.92DN2008"3516.8719.067190.6750.4611021.4781.8615009.2813.2619154844.6623455.8876.06DN25010"4364.6888.628886.2920.0213564.8951.4218400.4982.82233931014.2228542.61045.62DN30012"51811051.9105191083.3160141114.7216661146.1274751177.5334411208.9DN35014"5997.41215.1812151.81246.5818463.21277.9824931.61309.38315571340.7838339.41372.18DN40016"6766.71369.0413690.41400.4420771.11431.8428008.81463.2435403.51494.6442955.21526.04DN45018"7614.51538.615386157023314.51601.4314001632.839642.51664.2480421695.6DN50020"8399.51695.616956172725669.51758.4345401789.843567.51821.2527521852.6DN60024"9969.52009.620096204130379.52072.4408202103.851417.52135.2621722166.6保温管内径mm截面积mm2铁皮周长L截面积mm2铁皮周长L截面积mm2铁皮周长L截面积mm2铁皮周长L截面积mm2铁皮周长L截面积mm2铁皮周长Lφ20φ22φ25φ28φ32φ35φ38φ42φ45φ48φ51φ57φ60φ76φ89φ108φ114φ133φ140φ159φ168φ219φ273φ325φ377φ426φ480φ530φ630备注:1、保温材料的规格分别为:5mm10mm15mm15mm20mm25mm30mm2、本表格中铁皮周长数据为净尺寸，未含放宽余量，实际计算应再加10cm
