Which types of pipes require pressure testing
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Everyone, when creating a pipeline table, how do you decide whether to include a column for the pressure testing medium? How do you decide whether to use hydraulic or pneumatic pressure?
If we were to discuss this issue in detail, there’s a lot to say; let me give you a brief explanation: 1. All pressure pipelines need to undergo pressure testing (although this may be waived in some special cases). 2. First, consider using hydraulic pressure; for gas pipelines, or in cases where cleanliness and specific process requirements apply, pneumatic pressure can be used. 3. A water pressure is recommended when the pressure is above 0.6 MPA; if air pressure must be used, thorough protective measures are essential.
Check the relevant standards; for example, low-temperature pipelines with dew point requirements cannot undergo hydrostatic testing
Pressure testing is required in all cases; water pressure is generally used, while air pressure is not recommended
Take a look at GB50235 and you’ll understand
Under normal circumstances, hydraulic pressure is used, which is safer