1 钢管、管件和法兰
钢管、管件和法兰相关知识,建议直接看ASME标准。
钢管ASME标准下载地址:
- 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 标准下载地址:
- 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
法兰ASME B16.5 标准下载地:
ASME B16.5 Pipe Flanges and FlangedFittings:https://www.cad2d3d.com/post-1198.html
管道选用无缝钢管,钢管有外径和壁厚两个重要参数。
管道、管件、法兰和阀门等材质的相关知识,建议直接看ASTM标准。
1)ASTM A182 《高温用锻制或轧制合金钢和不锈钢法兰、锻制管件、阀门和部件(Standard specification for Forged or Rolled Alloy and StainlessSteel Pipe Flanges, Forged Fittings , and Valve and Parts for High-TemperatureService)》
2)ASTM A351《承压件用奥氏体铸钢件的标准规范(StandardSpecification for Castings, Austenitic, for Pressure-Container Parts)》
3)ASTM A312《无缝和焊接的以及重度冷加工奥氏体不锈钢公称管标准规范(Standard Specification for Seamless, Welded, and Heavily Cold WorkedAustenitic Stainless Steel Pipes)》
3)ASTM A403《可锻奥氏体不锈钢管件标准规范(StandardSpecification for Wrought Austenitic Stainless Steel Piping Fittings)》
介质管道上通常选用对焊锻造管件、带颈对焊突面法兰,仪表风、氮气管道上优先选用对焊锻造管件、带颈对焊突面法兰。对焊锻造管件和对焊法兰,由于需要和钢管对焊,因此需要指定端口型式和壁厚,需保证与对接的钢管一致。
插焊和螺纹锻造管件没有壁厚参数,插焊管件有压力等级参数,法兰有压力等级参数。
插焊锻造管件公称压力等级分CL3000、CL6000和CL9000。
螺纹锻造管件公称压力等级分CL2000、CL3000和CL6000。
法兰公称压力等级分CL150、CL300、CL400、CL600、CL900、CL1500、CL2500。
钢管、管件和法兰采购时需要明确规格参数,涉及到标准号、公称直径、公称压力等级、外径、壁厚和材质等参数。
拓展知识:
1.法兰密封面型式(突面 RF、凸面凹面、榫面槽面、全平面和环连接面):https://www.cad2d3d.com/post-2072.html
2.欧标和美标法兰公称压力等级划分异同点:https://www.cad2d3d.com/post-1143.html
3.法兰紧固件螺栓拧紧顺序:https://www.cad2d3d.com/post-1917.html
4.钢管、管件和法兰等英文缩写的全称及含义:https://www.cad2d3d.com/post-2021.html
5.管道连接方式选择依据:https://www.cad2d3d.com/post-2059.html
6.工业金属管道接头、法兰等选用要求:https://www.cad2d3d.com/post-2176.html
2 材质
管道、管件、法兰和阀门等材质的相关知识,建议直接看ASTM标准。
1)ASTM A182 《高温用锻制或轧制合金钢和不锈钢法兰、锻制管件、阀门和部件(Standard specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings , and Valve and Parts for High-Temperature Service)》
2)ASTM A351《承压件用奥氏体铸钢件的标准规范(Standard Specification for Castings, Austenitic, for Pressure-Container Parts)》
3)ASTM A312《无缝和焊接的以及重度冷加工奥氏体不锈钢公称管标准规范(Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes)》
3)ASTM A403《可锻奥氏体不锈钢管件标准规范(Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings)》
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