Do the branch pipes for instrument air generally extend from above or below the main pipe?
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Do the branch pipes for instrument air generally extend from above or below the main pipe?
Agree with what was said above: it prevents condensation water from entering the pneumatic mechanism, by being located above the supervisor.
It is necessary to run a branch pipe above the main line; this must be done in order to prevent water from entering the instrument air. Additionally, when installing the main instrument air pipeline, a drain or liquid discharge tank should be provided. If, due to constraints, branch pipes can only be led from below the tube, it is necessary to use a separation tank with a larger capacity to prevent condensate and oil from entering the pipelines leading out.
Of course, it is led in from above to prevent impurities such as oil and water from entering the branch pipelines.