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Kit (Airlock)
Stacks 5
Created With Hydraulic Pipe Bender, Fabricator
Cost 20g Iron, 3g Copper
Power Usage 25W
Placed with Kit (Airlock)
Placed on Large Grid
Stage 1
Deconstructed with Hand Drill
Item received Kit (Airlock)


The airlock is a powered door with separate power and data ports which can withstand a pressure difference of 1MPA. The Airlock has a keypad on both sides on the door which you can click on to open/close the door, when the door has power. The indicating lights will turn Red if the door is locked, green if the door is unlocked. As long as the door is unlocked it can be manually operated using a Crowbar, regardless of power state, and it can always be removed using a drill.

The airlock can be automatically controlled by an airlock circuit card inside a console. Doing so will Lock out all associated doors and vents from manual use, which is a problem if power is lost.

Basic Airlock Circuit Board[edit]

The basic airlock circuit board will automatically operate the active vent to pump the room to vacuum when a stationeer is leaving to the external side, and will pressurize the room to 100kPa when re-entering. If there is any pressure on the external side it will slowly be pumped towards the internal side as the airlock is cycled. You must use an advanced airlock or use TWO basic airlocks external-external to properly function in a non-vacuum environment.

One Passive vent is optional to release pressure to the interior of your base. A closed pipe will function but can over-pressurize and burst if there is any atmosphere on the external side of the airlock.

Material requirements for the basic airlock are:

  • 2 Airlock doors
  • 1 Console, 1 Airlock circuit board, 1 Sheet of glass, 1 Sensor Kit (gas sensor), and 1 Active Vent
  • 1 data disc to setup the console
  • 1 Passive vent (optional)
  • 1 Indicator Light (optional)
  • Enough pipes and wires to connect everything.

Advanced Airlock Circuit Board[edit]

The advanced airlock circuit board adds an additional active vent to the configuration, and must be manually configured to desired internal and external pressure. It will automatically pump down the airlock towards the side that was last open, and will re-pressurize from the side that is going to be opened.

One passive vent connected to each Active Vent (2 total) is recommended to relieve pressure within the piping, but it not required.

Setting either pressure to 0 will skip the pressurizing and speed up the cycle time, but can result in large wind currents when the door opens. Using a kit Tank, or a large amount of pipe, can increase the available gas volume and speed up pressurizing.

Configuration and Troubleshooting[edit]

When selecting items with the data disc inserted, always select the external side items first, and then the internal side. The airlock door will turn red and the active vent will say 'locked' when they are selected. When configuring you should check that the first selected of each of these (vent/door) is actually the external side, and if not, de-select and select the other door.

The airlock circuit card expects the doors to be in a certain open/close state, or it will throw an error: config. If this happens you must use the data disc to deselect the doors and play around with their open/close states, and then re-select the doors. I find leaving the internal door open, external door closed is often the state it wants.

Basic Build Process[edit]

The general build process is as follows:

  1. Build frames and walls
  2. Place airlock doors with the wire connections facing inwards.
  3. Place console, active pressure vent and gas sensor (Sensor kit can have type adjusted with mouse wheel)
    • Attention: the airlock will open as soon as the square in which the sensor resides has no air, depending on placement the airlock may open prematurely and vent the air that is left. One sensor per square works best.
  4. After placing console, insert airlock circuit board and place glass on top (have glass in active hand)
  5. Wire all power and data lines together and connect them to an active power supply.
    • Both data and power wires for the airlocks will have to be connected.
  6. Connect pipes from active pressure vent through walls/frames to a passive pressure vent inside your base.
  7. Go to console (turn it on), put in the disk to start the configuration.
  8. Select the outer airlock door first, it's lights will turn red, click again to deselect if you got the wrong door, then select all the other components that make up the airlock: Inner Door, Gas Pressure Sensor, Active Vent. You can also select an optional flashing light, and slave the console to (receive commands from) another airlock console. Slaving is useful for really long airlocks, or for remote control of the airlock.
  9. Remove the disk.
    • If there is an error the console screen will say so and the power light will flash yellow.

Note that the airlock may get stuck during the 'pressurizing' phase if there is not enough gas to reach 100kPa inside the airlock, you may click the yellow "Cancel Pressurization" button on the console to skip this step. You can click the cancel button through the windows of the airlock, or drill out the airlock door, if there is no-one inside a stuck airlock.

On the instruction to pressurise the airlock will attempt to pull gas from the passive vent and pressurize the airlock to 100kpa.

Data Network Properties[edit]

These are all Data Network properties of this device.

Data Parameters[edit]

These are all parameters, that can be written to with a Logic Writer, Batch Writer, or Integrated Circuit (IC10). The outputs are listed in the order a Logic Writer's "VAR" setting cycles through them.

Parameter Name Data Type Description
Open Boolean Opens the Airlock, when set to 1. Closes the it, when set to 0.
Lock Boolean Locks the Airlock, when set to 1. Unlocks it, when set to 0.
On Boolean Turns the Airlock on, when set to 1. Turns the Airlock off, when set to 0.

Data Outputs[edit]

These are all parameters, that can be read with a Logic Reader or a Slot Reader. The outputs are listed in the order a Logic Reader's "VAR" setting cycles through them.

Output Name Data Type Description
Power Boolean Returns whether the Airlock is turned on and receives power. (0 for no, 1 for yes)
Open Boolean Returns whether the Airlock is open. (0 for no, 1 for yes)
Lock Boolean Returns whether the Airlock is locked. (0 for no, 1 for yes)
On Boolean Returns whether the Airlock is turned on. (0 for no, 1 for yes)
RequiredPower Integer Returns the current amount of power, required by the Airlock, in Watts.