阀门知识
压力管道类别、级别划分
更新时间 2022-11-28 09:32:12
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1902
1、概述
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、t<400及P≤1.0、t≥400,管道射线检测率为10%;
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长输 管道 |
GA |
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GA1(2) |
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GB |
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工业管道 |
GC |
GC1(1) |
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GC1(3) |
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GC2 |
1. 符合GB50160-1992及GB/T50016-2006规定的甲、乙类可燃气体或甲类可燃液体介质P<4.0Mpa。例如:氧气、乙炔气、工业用天然气管道; 2. P <10.0Mpa、T<400℃的管道。例如:; )可燃流体介质:汽、柴油等; 2)符合工况要求的用于生产的蒸汽管网等; 3)腐蚀性较强的介质:酸、碱液体等; 4) 一般气体或有毒气(汽)体或高于沸点的液体等; 5)用于工业项目的的蒸汽(400 ℃ |
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GC3 |
2)用于工业项目符合本条工况的过热蒸汽、高温水(T ≥100℃)工业热力外网; |
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GD 类 |
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1.介质为氨、直径DN40、压力0.3Mpa的管道,不属压力管道,不需要分类为GC2压力管道;(公称直径小于50mm)
2.介质为压缩空气、直径DN100、压力1.0Mpa的管道,不属压力管道,不需要分类为GC3压力管道;(公称直径小于150mm、工作压力小于1.6MPa)。
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