Fluid and Compressor Tanks¶
Fluid Tanks and Compressor Tanks are RNGTech's staged fluid storage blocks. Each holds one fluid at a time.
- Fluid Tanks (Iron, Copper, Bronze) are plain tanks. They need no power or Gear.
- Compressor Tanks (Steel and later) also have a second, compressed store. With a Battery Cell, at least one Servo, and FE, they squeeze fluid into it, so a small block holds far more fluid.
You can read a tank from the outside. A Fluid Tank is a glass box in a frame of its metal, so you see the fluid and its level through the glass. A Compressor Tank is built around its compressed store, a pressure vessel with more reinforcing hoops the higher the tank's compression ratio. The armoured window on the vessel's front fills with the compressed fluid, drawn darker than the loose fluid, and the gauge above it reads how full the compressed store is. The loose fluid shows in the glass feed tubes at the four corners. Each installed Servo is a pump on top of a feed tube, in its own metal with a band of its accent colour, and the Battery Cell lies in a cradle behind the vessel. While the tank compresses, the pumps stroke, the impeller on top of the vessel spins, bubbles rise in the window, the gauge needle kicks with each stroke, and the lamp beside the gauge glows.
A side facing a cable connector or a Universal Connector shows a connector port, on top and underneath too. Sides with nothing attached stay open.
Each tank you craft rolls its own rarity and affixes where its tier allows it. Fluid Tanks do not roll affixes. Compressor Tank affixes improve FE storage, FE use, speed, fluid transfer, and stability. Tank capacity and compression ratio never roll.
Obtaining¶
Crafting¶
Each stage has its own recipe built on a 
Tank Frame (Fluid Tanks) or a 
Pressure Tank Frame (Compressor Tanks). You do not need the previous tank to craft the next one, so your existing tanks and their rolls stay usable.
| Ingredients | Crafting recipe | Notes |
|---|---|---|
| Iron Fluid Tank Glass + Iron Ingot + Tank Frame |    | Requires the Iron material to be enabled. |
| Copper Fluid Tank Glass + Copper Ingot + Tank Frame |   | Requires the Copper material to be enabled. |
| Bronze Fluid Tank Glass + Bronze Ingot + Tank Frame |   | Requires the Bronze material to be enabled. |
| Steel Compressor Tank Glass + Steel Ingot + Pressure Tank Frame |   | Requires the Steel material to be enabled. |
| Aluminum Compressor Tank Glass + Aluminum Ingot + Pressure Tank Frame |   | Requires the Aluminum material to be enabled. |
| Titanium Compressor Tank Glass + Titanium Ingot + Pressure Tank Frame |   | Requires the Titanium material to be enabled. |
| Tungstensteel Compressor Tank Glass + Tungstensteel Ingot + Titanium Casing + Pressure Tank Frame |    | Requires the Tungstensteel material to be enabled. Requires the Titanium material to be enabled. |
| Exotic Compressor Tank Glass + Naquadah Ingot + Tungstensteel Casing + Pressure Tank Frame |    | Requires the Tungstensteel material to be enabled. |
| Tank Frame Iron Rod + Bucket + Machine Frame |    | Requires the Iron material to be enabled. |
| Pressure Tank Frame Steel Rod + Bucket + Reinforced Machine Frame |   | Requires the Steel material to be enabled. |
Breaking¶
Mine a tank with a pickaxe. It drops itself with its rolled traits, plus any installed Gear and Refinement items. The fluid inside is lost, so empty the tank before you move it.
Usage¶
Storing fluid¶
Pipe fluid into any side, or use the container slots on the Process tab to fill and empty buckets. A tank holds only one kind of fluid. It rejects a different fluid while either store still holds the old one.
Compression¶
On a Compressor Tank, fluid first goes into the loose tank. With a valid Battery Cell, at least one Servo, and FE, the tank moves loose fluid into the compressed store. Compressed fluid still counts as the same amount of ordinary fluid. The Process tab also shows the smaller physical volume it takes up, so a Steel tank holding 100 buckets compressed shows about 10 buckets.
When you drain the tank, it empties loose fluid first. Draining compressed fluid needs the same Gear and FE, and costs a quarter of the FE it took to compress it. It runs at the same rate limit as compression. Without power, compressed fluid simply stays put: it never leaks, vanishes, or gets voided.
Idle compressed storage costs no FE.
FE you feed the tank fills its small internal buffer first, then charges the Battery Cell. Compression spends the buffer first, then draws from the cell. The tank sets no intake limit of its own, so only the cell, your cable, and the source limit charging.
Compression speed is the base rate times the Servo bonus, raised further by speed and fluid transfer affixes.
Stages¶
Values are base values before rolls and Gear.
| Stage | Tank | Loose tank | Compressed store | Ratio | Compression rate | Compression cost |
|---|---|---|---|---|---|---|
| 1 | Iron Fluid Tank |
16 B | — | — | — | — |
| 2 | Copper Fluid Tank |
24 B | — | — | — | — |
| 3 | Bronze Fluid Tank |
32 B | — | — | — | — |
| 4 | Steel Compressor Tank |
48 B | 480 B | 10× | 150 mB/t | 200 FE/B |
| 5 | Aluminum Compressor Tank |
64 B | 1,024 B | 16× | 250 mB/t | 320 FE/B |
| 6 | Titanium Compressor Tank |
96 B | 2,304 B | 24× | 400 mB/t | 480 FE/B |
| 7 | Tungstensteel Compressor Tank |
128 B | 4,096 B | 32× | 700 mB/t | 640 FE/B |
| 8 | Exotic Compressor Tank |
192 B | 9,216 B | 48× | 1,000 mB/t | 960 FE/B |
The compressed store column is the amount of fluid it holds, not its physical size. 1 B is one bucket (1,000 mB).
Gear¶
Fluid Tanks have no Gear. Compressor Tanks have a Gear tab with:
- one Battery Cell slot. A cell is required for compression and adds FE storage.
- four Servo slots. At least one is required. More Servos compress faster: 1.75× with two, 2.5× with three, and 3.5× with four. Better Servos also help, based on their average speed rolls.
Installed Gear cannot be from a higher stage than the tank. Servos start at Stage 4, which is why compression starts with the Steel tank.
Automation¶
| Side | Behavior |
|---|---|
| Top and sides | Insert fluid containers. |
| Bottom | Extracts filled containers. |
| Any | Fills and drains ordinary fluid, loose fluid first. Compressor Tanks also accept FE, for example from a Universal Cable. |
Compressor Tanks only take FE in. They never give FE out, so they cannot act as batteries. Gear and Refinement slots are filled by hand.
To throw fluid away, use the purge buttons on the Process tab, or right-click the tank with a 
Purge Bucket to void up to 1,000 mB. A normal right-click empties loose fluid first; sneaking empties compressed fluid first, which needs no FE.
Screen¶
The tank screen has these tabs:
- Process: the loose and compressed stores with purge buttons, the fluid container slots, FE, and status.
- Gear: Battery Cell and Servo slots (Compressor Tanks only).
- Stats: the tank's current stats, including fluid capacity and compression ratio.
- Refinement: refine the placed tank's traits with a catalyst.
Data values¶
| Name | Resource location | Form | Translation key |
|---|---|---|---|
| Iron Fluid Tank | rngtech:iron_compressor_tank | Block | block.rngtech.iron_compressor_tank |
| Copper Fluid Tank | rngtech:copper_compressor_tank | Block | block.rngtech.copper_compressor_tank |
| Bronze Fluid Tank | rngtech:bronze_compressor_tank | Block | block.rngtech.bronze_compressor_tank |
| Steel Compressor Tank | rngtech:steel_compressor_tank | Block | block.rngtech.steel_compressor_tank |
| Aluminum Compressor Tank | rngtech:aluminum_compressor_tank | Block | block.rngtech.aluminum_compressor_tank |
| Titanium Compressor Tank | rngtech:titanium_compressor_tank | Block | block.rngtech.titanium_compressor_tank |
| Tungstensteel Compressor Tank | rngtech:tungstensteel_compressor_tank | Block | block.rngtech.tungstensteel_compressor_tank |
| Exotic Compressor Tank | rngtech:exotic_compressor_tank | Block | block.rngtech.exotic_compressor_tank |
| Tank Frame | rngtech:tank_frame | Item | item.rngtech.tank_frame |
| Pressure Tank Frame | rngtech:pressure_tank_frame | Item | item.rngtech.pressure_tank_frame |
See also¶
RNGTech wiki
| Guides |  Automation ·  Battery Cells ·  Dormant Machines ·  Gear ·  Getting Started ·  Heat ·  Machine Mastery · Machine Stats ·  Modpack Creators ·  Power Chains ·  Rarity and Affixes · Stages ·  Uniques |
|---|---|
| Processing |  Alloy Furnace ·  Component Assembler ·  Component Recycler ·  Crusher ·  Furnace ·  Melter ·  Metal Press ·  Resonance Calibrator ·  Wooden Composter |
| Power generation |  Bio Generator ·  Cavitation Generator ·  Corrosion Cell ·  Fuel Cell ·  Potential Reactor ·  Solar Panel ·  Solid Fuel Burner · Syngas Combustor ·  Vacuum Collapse Generator |
| Energy storage |  Battery Chassis |
| Fluids and gases |  Algae Photobioreactor ·  Ammonia Synthesizer ·  Coal Gasifier · Fluid and Compressor Tanks ·  Silica Gel Dehumidifier ·  Steam Methane Reformer ·  Wooden Dehumidifier |
| Refinement |  Affix Forge ·  Exotic Affix Forge |
| Logistics |  Universal Cable |
| Tools |  Forestry Cart Station ·  Miner's Companion ·  Modular Tools ·  Tool Bench |