Pipe Passthrough (Straight)
A pipe set in masonry.
The same straight pipe as Piping (Straight), cast into masonry so a wall or a floor can cross a run without a gap in it: the boiler fireboxes and the furnace walls of Steelmaking Expanded are built from these. It is exempt from over-pressure failure and never caps a run's rating, whatever pressure the run reaches.
Stand a chimney on its open top connector to draw 16 L/s of gas through it instead of leaking 8 L/s, the way a boiler's firebox is exhausted.

front
right
back
left
topMade by
| any Brick x 2 | any Hammer (tool, not consumed) | any Brick x 2 |
| any Brick x 2 | any Piping (Straight) | any Brick x 2 |
| any Brick x 2 | any Brick x 2 | |
| Pipe Passthrough (Straight) | ||
Needs: 12 any Brick, 1 any Piping (Straight), a Hammer (kept); makes 1 Pipe Passthrough (Straight)
Amounts are the mod's defaults; the recipe-cost level changes them (see Commands and config).