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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