JB/T81-2015 板式平焊钢制管法兰
公称通径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aD0ndb219818182731218223251222223771222224261622224801622245302022246302026247202426268202430269202430281020283030112028303012203230301320323030142036303215203630321620403032172040303518204430401920443040202048304521205234452220523445232052344524205634452520563445262060344527203528203650292036503020683650f33444444555555555555555555555555孔距107.286.7102.2115.296.6107.393.9110.3105.7120.1133.1125.4136.6129.4139.2132.5142.1135.7143.6137.7144.8139.3134.6141.3147.3142.4148.0143.4140.3145.2150.1145.9质量5.88.411.112.513.917.118.623.632.941.149.758.3.069.174.885.294.6107.3124.7150.0158.4186.6191.3214.0224.0232.7242.7251.4306.2353.1366.1377.4D32037544049054059557558609751075117512901405152016301730183019402045215522652370247525802685279529053010311532153315D12803353954454955506007058109201020112012201340145015601660176018601970207521802285239024952600270528102915302031203220D22553103624124625185686707758809801080118012801380148015901690179010199020902190230024002500260027002820292030203120PN0.6MPaD0ndb2198182227312182432512222437712222261622284801622285302022306302026307202426328202430329202430341020283036112028303612203233401320323345142036351520363516204036501720403650182044395019204439502020484250212048425022205242502320524250242052502520525026206048502720485028204850292048503020684850f33444444555555555555555555555555孔距107.286.7102.2115.296.6107.393.9110.3105.7120.1133.1125.4136.6131.3142.1136.0144.7138.1145.9140.5148.0142.6149.4144.3150.6145.8151.7147.1143.0148.2153.1148.7质量7.09.212.214.817.720.023.229.540.450.660.369.985.3111.2147.91.8176.4207.4232.2247.4274.6297.5319.9340.83.5386.20.1442.8466.8494.3512.5527.8注：1、孔距算法：D1*sin（180/n） 2、更改法兰参数，孔距和质量会自动变化
