1 鋼管、管件和法蘭
鋼管、管件和法蘭相關(guān)知識(shí),建議直接看ASME標(biāo)準(zhǔn)。
鋼管ASME標(biāo)準(zhǔn)下載地址:
- ASME B36.10M Welded andSeamless Wrought Steel Pipe:https://www.cad2d3d.com/post-1167.html
- ASME B36.19M Stainless SteelPipe:https://www.cad2d3d.com/post-1166.html
管件ASME B16.9 標(biāo)準(zhǔn)下載地址:
- ASME B16.9 Factory-Made WroughtButtwelding Fittings:https://www.cad2d3d.com/post-1168.html
- ASME B16.11 Forged Fittings,Socket-Welding and Threaded:https://www.cad2d3d.com/post-1171.html
法蘭ASME B16.5 標(biāo)準(zhǔn)下載地:
ASME B16.5 Pipe Flanges and FlangedFittings:https://www.cad2d3d.com/post-1198.html
管道選用無(wú)縫鋼管,鋼管有外徑和壁厚兩個(gè)重要參數(shù)。
管道、管件、法蘭和閥門等材質(zhì)的相關(guān)知識(shí),建議直接看ASTM標(biāo)準(zhǔn)。
1)ASTM A182 《高溫用鍛制或軋制合金鋼和不銹鋼法蘭、鍛制管件、閥門和部件(Standard specification for Forged or Rolled Alloy and StainlessSteel Pipe Flanges, Forged Fittings , and Valve and Parts for High-TemperatureService)》
2)ASTM A351《承壓件用奧氏體鑄鋼件的標(biāo)準(zhǔn)規(guī)范(StandardSpecification for Castings, Austenitic, for Pressure-Container Parts)》
3)ASTM A312《無(wú)縫和焊接的以及重度冷加工奧氏體不銹鋼公稱管標(biāo)準(zhǔn)規(guī)范(Standard Specification for Seamless, Welded, and Heavily Cold WorkedAustenitic Stainless Steel Pipes)》
3)ASTM A403《可鍛奧氏體不銹鋼管件標(biāo)準(zhǔn)規(guī)范(StandardSpecification for Wrought Austenitic Stainless Steel Piping Fittings)》
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不銹鋼無(wú)縫鋼管示意圖
介質(zhì)管道上通常選用對(duì)焊鍛造管件、帶頸對(duì)焊突面法蘭,儀表風(fēng)、氮?dú)夤艿郎蟽?yōu)先選用對(duì)焊鍛造管件、帶頸對(duì)焊突面法蘭。對(duì)焊鍛造管件和對(duì)焊法蘭,由于需要和鋼管對(duì)焊,因此需要指定端口型式和壁厚,需保證與對(duì)接的鋼管一致。
插焊和螺紋鍛造管件沒(méi)有壁厚參數(shù),插焊管件有壓力等級(jí)參數(shù),法蘭有壓力等級(jí)參數(shù)。
插焊鍛造管件公稱壓力等級(jí)分CL3000、CL6000和CL9000。
螺紋鍛造管件公稱壓力等級(jí)分CL2000、CL3000和CL6000。
法蘭公稱壓力等級(jí)分CL150、CL300、CL400、CL600、CL900、CL1500、CL2500。
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彎頭、三通、變徑管等示意圖
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帶勁對(duì)焊(WN)突面(RF)法蘭示意圖
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帶勁對(duì)焊(WN)突面(RF)法蘭示意圖
鋼管、管件和法蘭采購(gòu)時(shí)需要明確規(guī)格參數(shù),涉及到標(biāo)準(zhǔn)號(hào)、公稱直徑、公稱壓力等級(jí)、外徑、壁厚和材質(zhì)等參數(shù)。
拓展知識(shí):
1.法蘭密封面型式(突面 RF、凸面凹面、榫面槽面、全平面和環(huán)連接面):https://www.cad2d3d.com/post-2072.html
2.歐標(biāo)和美標(biāo)法蘭公稱壓力等級(jí)劃分異同點(diǎn):https://www.cad2d3d.com/post-1143.html
3.法蘭緊固件螺栓擰緊順序:https://www.cad2d3d.com/post-1917.html
4.鋼管、管件和法蘭等英文縮寫的全稱及含義:https://www.cad2d3d.com/post-2021.html
5.管道連接方式選擇依據(jù):https://www.cad2d3d.com/post-2059.html
6.工業(yè)金屬管道接頭、法蘭等選用要求:https://www.cad2d3d.com/post-2176.html