Guangzhou Ailixun Electronic Technology Co., Ltd. and Ailixun Testing Equipment (Ningbo) Co.,

 Ltd. provide the main testing standards and corresponding standard numbers for pipeline pressure

 detection and related pipeline pressures, covering international, regional (such as China, the European Union, 

and the United States), and industry standards

Pipeline pressure testing is an important means of testing the strength, sealing, and safety of pipeline systems,

 and the testing standards vary depending on the application field and medium (such as water, gas, oil, etc.). 

The following are common international and domestic standards and key points:

1. General standards

international standard

-ISO 15649: Pressure testing of pipeline systems in the petroleum and natural gas industry.

-ASME B31 series (such as B31.1, B31.3):

-B31.1 (Power Pipeline): Test pressure ≥ 1.5 times the design pressure, but not exceeding 90% of the material yield strength.   

-B31.3 (Process Pipeline): The test pressure is 1.1 to 1.5 times the design pressure, and it needs to be maintained for at least 10 minutes.

Domestic standards

-GB 50235-2010 Construction Code for Industrial Metallic Piping Engineering:

-Hydraulic test: 1.5 times the design pressure (and ≥ 0.6MPa), hold the pressure for 10 minutes, and pass if there is no leakage.   

-Air pressure test: 1.15 times the design pressure, gradually increase the pressure (not exceeding 50% per level), and hold the pressure for 10 minutes.   

-GB/T 20801.5-2020 "Pressure Piping Code - Industrial Piping": Detailed provisions on test pressure, medium, and acceptance requirements.

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