不锈钢通风管道的壁厚标准通常根据管径、使用环境、工作压力、流体性质和运行环境温度等因素确定。以下是一些常见的不锈钢风管壁厚标准：

　　The wall thickness standard for stainless steel ventilation ducts is usually determined based on factors such as pipe diameter, usage environment, working pressure, fluid properties, and operating environment temperature. Here are some common wall thickness standards for stainless steel ducts:

　　管径在50mm以下 ：壁厚通常在 0.8-1.0mm 。

　　The diameter of the pipe is below 50mm: the wall thickness is usually between 0.8-1.0mm.

　　管径在50-100mm ：壁厚通常在 1.0-1.2mm 。

　　The diameter of the pipe is between 50-100mm, and the wall thickness is usually between 1.0-1.2mm.

　　管径在100-200mm ：壁厚通常在 1.2-1.5mm 。

　　The diameter of the pipe is 100-200mm, and the wall thickness is usually 1.2-1.5mm.

　　管径在200mm以上 ：壁厚通常在 1.5mm以上 。

　　Pipe diameter above 200mm: wall thickness is usually above 1.5mm.

　　室外或有腐蚀性气体环境 ：壁厚需要加厚。

　　Outdoor or corrosive gas environment: Wall thickness needs to be increased.

　　高压力环境 ：壁厚需要相应增大。

　　High pressure environment: The wall thickness needs to be increased accordingly.

　　对于焊接风管，还有以下要求：

　　For welding air ducts, there are also the following requirements:

　　壁厚≥ 0.5mm 。

　　Wall thickness ≥ 0.5mm.

　　板材焊接应采用 TIG 或 MIG 焊接技术。

　　TIG or MIG welding technology should be used for plate welding.

　　直径≤ 150mm 的风管应采用 D级品质 ，其余应采用 C级品质 。

　　Ducts with a diameter of ≤ 150mm should be of D-grade quality, while others should be of C-grade quality.

　　不锈钢矩形风管边长 10-50cm 的正压厚度为 0.5mm ，高压厚度为 0.75mm 。

　　The positive pressure thickness of the stainless steel rectangular air duct with a side length of 10-50cm is 0.5mm, and the high pressure thickness is 0.75mm.

　　不锈钢螺旋风管厚度标准通常为 2.5mm-16mm 。

　　The thickness standard for stainless steel spiral ducts is usually 2.5mm-16mm.

　　不锈钢异形风管壁厚标准根据具体规格和用途有不同的要求。

　　The wall thickness standard for stainless steel irregular ducts varies depending on specific specifications and applications.

　　请注意，这些标准可能因国家和地区而异，具体选择时应参考当地行业标准，如GB/T 13793、GB/T 19216等。

　　Please note that these standards may vary by country and region, and specific selection should refer to local industry standards such as GB/T 13793, GB/T 19216, etc.

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