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This is a quick reference to the various components of a piped-fluid network.

Component	Kit	Inputs	Outputs	One-way?	Switched?	Compressor?	Volume	Max. Pressure	Max. Power	Primary Function
Pipe (various shapes)	Kit (Pipe), also craftable at Autolathe	2-6 generic		No	No	No	100 L	60 MPa	-	Provide a pathway.
Pipe Label	Kit (Pipe Label)	clamp-on		-	-	-	-	-	-	Visually label pipes.
Pipe Valve	Kit (Pipe Valve)	2 generic		No	Manual only	No	?	?	-	Open/close flow manually.
Pipe Digital Valve	Kit (Digital Valve)	2 generic		No	Yes	No	?	?	25W	Open/close flow using logic circuits.
Pipe Volume Pump	Kit (Volume Pump)	1	1	Yes	Yes	Yes	varies?	?	800W, varies	Pump fluid at adjustable rate.
Pressure Regulator	Kit (Pressure Regulator)	1	1	Yes	Yes	Yes	?	20 MPa	100W	Achieve target pressure at output.
Back Pressure Regulator	Kit (Pressure Regulator)	1	1	Yes	Yes	Yes	?	20 MPa	100W	Achieve target pressure at input.
Pipe Meter	Kit (Pipe Meter)	clamp-on		-	-	-	-	-	-	Visually show pipe's pressure.
Pipe Analyzer	Kit (Pipe Analyzer)	clamp-on		-	-	-	-	-	50W	Sense pipe's pressure, temperature, and composition, for visual display and logic circuits.
Pipe Gas Mixer	Kit (Gas Mixer)	2	1	Yes	Yes	Yes1	?	?	100W	Mix fluids: Combine two input mixes into one output mix, at an adjustable ratio.
Filtration	Kit (Atmospherics)	1	2	Yes	Yes	Yes	?	?	5W	Sort fluids: Separate an input mix into a pure output and a "leftover" output.
Electrolyzer	Kit (Atmospherics)	1	1	Yes	Yes	Yes	?	?	1,400W	Create fuel: From input H2O, output mixed O2 and Volatiles.
Air Conditioner	Kit (Atmospherics)	1	2	Yes	Yes	Yes	?	?	7,000W, varies	Heat or cool a fluid: From input, split heat between right-temperature and wrong-temperature outputs.
Wall Cooler	Kit (Wall Cooler)	space	1	Yes, for heat2	Yes, for heat2	Yes, for heat2	?	?	?	Cool a space: Actively remove heat from a space into a pipe.
Pipe Radiator	Kit (Pipe Radiator)	clamp-on		-	-	-	-	-	-	Heat/cool: Passively exchange heat between a pipe and a space.
Active Vent	Kit (Active Vent)	1 generic, 1 space		Yes, reversable	Yes	Yes	?	?3	100W	Pump pressure between a space and a pipe.
Passive Vent	Kit (Passive Vent)	1 generic, 1 space		No	No	No	-	-	-	Equalize pressure between a space and a pipe.
Gas Tank Storage	Kit (Canister Storage)	1 generic		No	No	No	64 L4	101 MPa4	-	Small storage: Attach pipes to Gas Canisters (removable, inventory-portable fluid storage).
Tank Connector	Kit (Tank Connector)	1 generic		No	No	No	790 L4	10.1 MPa4	-	Medium storage: Attach pipes to Portable Tanks (removable, draggable fluid storage), and also to Portable Air Scrubbers and Portable Air Conditioners.
Small Tank	Kit (Tank)	1 generic		No	Logic only?	No	6 kL	60 MPa	-	Permanent, high-capacity fluid storage.
Large Tank	Kit (Tank) × 5	1 generic		No	Logic only?	No	50 kL	60 MPa	-	Permanent, super-capacity fluid storage.
Furnace	Kit (Furnace), craftable at Autolathe or Fabricator	1	1	Yes	No	No	1 kL	?	-	Smelt ores, but can also melt/sublimate Ices directly into a pipe.

Kit: The item used to build the component. These are the names as they appear in fabrication lists, which does not always match the true name of the item. Except where noted, all of these items are manufactured with a Hydraulic Pipe Bender or Fabricator.

Input/Output: "Generic" connections are pipe fittings that are not explicitly for input or output. "Space" indicates an interface to fluids that are not contained in pipes (e.g., the atmosphere or the contents of a room). "Clamp-on" components have no fittings of their own; they clamp onto an existing Straight Pipe.

One-way: Does the component prevent fluid from flowing the wrong way, from output to input?

Switched: Does it prevent all flow when switched off or unpowered? Except where noted, switched components can be switched either manually or using logic circuits.

Compressor: Will it actively increase pressure in the output and decrease pressure in the input? If no, the component only allows pressure to change toward equilibrium between input and output, or it does not enable any pressure changes.

Max. Pressure: The component will begin to fail when pressure exceeds this. More precisely, this is the maximum difference in pressure between the component's internal volume and the surrounding space. Some components list "60 MPa" because attached pipes will fail, even if the true limit of the component itself is unknown. Even where a higher limit is known (e.g., canisters), this limitation still holds and places a practical maximum on most setups.

Note 1: While the Pipe Gas Mixer will actively compress from output to input, it will stop when either input is empty, to preserve the mix ratio.

Note 2: The Wall Cooler's one-way, switched, and "compressor" qualities apply only to the heat exchange. It does not directly affect the pressure or flow in its attached pipe.

Note 3: The Active Vent will fail at ? MPa. The pressure at which it will stop pumping is configurable through the data network and defaults to 0 Pa for Inward mode and 101 kPa (1 standard atmosphere) for Outward mode.

Note 4: These Volume and Max. Pressure ratings reflect the limits of the removable canisters and tanks. Note that the 101 MPa limit of a Gas Canister is considerably higher than the 60 MPa overall limit of a pipe network.