Can the air supply pipeline for the pneumatic valve be introduced from the lower level?
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There are no air supply branch pipes in this layer; can each pneumatic valve be connected directly using DN15 galvanized pipes leading from the lower layer? Is there a difference between introducing instrument air from above and from below?
If it’s mainly for repairs, it might be inconvenient; otherwise, there’s nothing wrong with it.
There are no restrictions on where the instrument air can be introduced from.
There’s no requirement to do this! ! ! ! It’s the same! ! !
When introducing it, install a main valve on this floor
A tee is installed at the process gas supply interface of this layer, from which main pipes are laid to both this layer and the layer above it. A stop valve is placed at the inlet of each main pipe, ensuring that gas supply can be cut off during maintenance in one layer without affecting the other.
It should work, as long as the wires come out from the upper side of the pipe.