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The Pipeline Junction Cross is used to split pipelines into four ways and allow flow in any direction. Any configuration works functionally: one input - three outputs, two inputs - two outputs, etc., as long as the total input pipes' flow rates do not exceed the total output pipes' flow rates.


  • A junction can be snapped to an existing pipeline, similar to snapping a Splitter onto a belt.
    • The junction can be rotated with its rotation axis aligned with the pipe, with a 45-degree interval.
  • A junction can be placed on Foundations for precise placement. You can rotate it in 45-degree intervals horizontally.
  • A junction can be placed on Walls for precise placement. You can rotate it in 45-degree intervals vertically.


  • A Pipeline Junction Cross does not have the 300 m3/min flow limit. So it will work even if it is connected to two input pipes and two output pipes with an overall flow of more than 300m3/min.
  • The Junction cannot be built directly onto a building's pipe connector so attempting to extract fluids from extractors with more than 300 m3/min will not work.
  • Connecting MK.1 and Mk.2 pipes to a junction has similar ratios to conveyors.
    • If you connect an Mk.2 pipe to a junction and then add three Mk.1 pipes on the other ends, it will create a similar 1:3 ratio that conveyors would.
    • All of this should be done on a flat surface, otherwise fluid may not reach the junction or will backlog and not reach its destination.

See Also[]



  • Patch Pipe attachments such as Pipeline Pumps and Junctions can now be placed on Walls and Foundations
  • Patch 0.3: Introduced