Are multiple branch pipes allowed for the instrument air supply pipeline in the workshop?
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Are multiple branch pipes allowed for the instrument air supply pipeline in the workshop? The instrument air supply pipeline leading to the workshop has a diameter of DN40. Since it is a multi-story building, is it permissible to have multiple branch pipes leading to each floor? Or, after splitting into one path, make branches at each layer – I’m not sure if that’s allowed Does it have an impact on pipeline pressure?
The specifications do not specify that this is not allowed; the key is to be able to estimate roughly the amount of air required by the instrument, so as to maintain pipeline pressure even when the instrument air flow is at its maximum. It is recommended to pay special attention to the air consumption of large valves； Instrument purge air consumption ；
As long as the gas flow in each pipeline is balanced, that’s sufficient. Allowed by the design.
Agree with the third floor. You can estimate the pipeline resistance by checking whether your pipeline can meet the gas demand.
How can measures be taken to ensure balanced gas flow in each pipeline? For example, the maximum pressure ranges for alternative air source devices are divided into two categories: 500–800 kPa and 300–00 kPa. Which category is better?