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Let’s talk about the classification of gas pipeline pressure.
The transmission pressure P of urban gas pipelines is divided into 7 levels.
6.1.6 The design pressure (P) of urban gas pipelines is divided into 7 levels and should meet the requirements of Table 6.1.6.
Table 6.1.6 Design pressure (gauge pressure) classification of urban gas pipelines
Name pressure (MPa)
High-pressure gas pipeline A 2.5lt; P ≤4.0
B 1.6lt; P≤2.5
Sub-high pressure gas pipeline A O.8lt; P≤1.6
B O.4lt; P≤O .8
Medium-pressure gas pipeline A 0.2lt; P≤0.4
B O.O1≤P≤O.2
Low-pressure gas pipeline Plt; O .01
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