Atmos

Back Pressure Regulator

Updated 3/8/2026

Back Pressure Regulator

Deconstruction Steps

StepToolRecovered Item
1Hand DrillKit (Pressure Regulator)

Description

"Unlike the Pressure Regulator, which closes when the input exceeds a given pressure, the back pressure regulator opens when input pressure reaches a given value." — Stationpedia The Back Pressure Regulator is an active powered device for controlled transfer of substances between the two pipe networks. The Back Pressure Regulator will only pass through gases when the pressure on its intake side exceeds the set value. In other words, it prevents the input network from exceeding the set pressure limit by diverting the excess into the output network. When being placed, hologram indicators will display the Input pipe arrow inward, the Output pipe arrow outward, and the power socket on its side. It has a pressure control valve, which defines the target pressure.

The most common use for a Back Pressure Regulator is as a failsafe mechanism, that can prevent a given pipe network from being overpressurized by a temperate output of other devices, diverting the gas into an arbitrary waste network. Similarly, it can be used to control the pressure within a room, where pressure can fluctuate due to increase in temperature, or has an active gas input to circulate an appropriate atmosphere. However, its low flow rate makes it not suitable for being used as an emergency dump valve in its own right, where a logic-controlled Active Vent or Turbo Volume Pump (Gas) would be more appropriate.

The maximum pressure that can be set is 60795 kPa - a critical pressure limit for a pipe network before it begin to take damage.

To calculate the moles per tick, use the following equation: n = (P * V) / (R * T)

Where:

  • P = Min(Input pressure, 101.325)
  • V = 100
  • n = Moles per tick
  • R = Gas constant (8.3144)
  • T = Input temperature

Data Network

ParameterTypeAccessDescription
PowerBooleanReadCan be read to return if the Back Pressure Regulator is correctly powered or not, set via the power system, return 1 if powered and 0 if not
ErrorBooleanRead1 if device is in error state, otherwise 0
LockBooleanRead/WriteDisable manual operation of the Back Pressure Regulator.
SettingIntegerRead/WriteA variable setting that can be read or written.
MaximumFloatReadMaximum setting of the Back Pressure Regulator
RatioFloatReadContext specific value depending on device, 0 to 1 based ratio
OnBooleanRead/WriteThe current state of the Back Pressure Regulator.
RequiredPowerIntegerReadIdle operating power quantity, does not necessarily include extra demand power
PrefabHashIntegerReadThe hash of the structure
ReferenceIdIntegerReadUnique Reference Identifier for this object
NameHashIntegerReadProvides the hash value for the name of the object as a 32 bit integer.