
The AirTAC Airtac GAC F.R.L. Unit GAC400C15L is a genuine three-unit F.R.L. combination — a filter, a pressure regulator and a lubricator pre-assembled on one bracket with quick mounting clamps. It has 1/2" ports, a 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for mid-size pneumatics, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 1/2in port pairs with a 40 um element and a lower pressure type operating at 0.15-0.4 MPa (20-58 psi). A circular gauge is fitted, reading MPa/psi for the default PT thread, allowing operators to monitor the set pressure directly.
The metal bowl equips this 2390 g assembly for rugged industrial environments, while the 100 cc condensate sump and 185 cc oil reservoir dictate the maintenance rhythm. Air passes through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. The semi-auto and manual drain pair clears accumulated water on every pressure drop or on demand.
| Model | Airtac GAC F.R.L. Unit GAC400C15L |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| Drain type | Semi-auto drain + manual drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 100 cc |
| Capacity of oil bowl | 185 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 2390 g |
Specifications follow the official AirTAC GAC catalogue (pages 216-217). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
| GAC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
Constituent units, orderable separately as spares: GAF400-15 filter, GAR400-15 regulator, GAL400-15 lubricator — all three share this body and port.
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAC400 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAC300 |
| One size up | GAC500 (curve to 7000 L/min) |
| Build order | Filter → bracket → regulator → lubricator |
Feeds low-pressure air looms and spinning frames where delicate tensioning cylinders require stable 0.4 MPa control and steady oil mist for continuous motion.
Conditions air for 1/2in pneumatic folding arms that must operate smoothly without high force, relying on the 40 um element to protect gripper seals from grit.
Prepares drive air for enclosed laboratory transport systems that specify lower pressure limits to prevent component damage during automated sample routing.
Choose this GAC400 body for duties requiring a 1/2in port, stepping up from the GAC300 which offers a 60 cc drain bowl and a flow curve plotted to 3000 L/min at 0.7 MPa inlet. This model provides a 100 cc drain bowl and a flow envelope plotted to 6000 L/min at the same inlet pressure, doubling the available air capacity. The metal bowl suits harsher settings where a standard PC bowl might not be chosen, though buyers must confirm chemical compatibility for aggressive surroundings. If the downstream line must remain free of oil, a filter-regulator should be chosen instead because this unit adds oil mist. Should a component fail, the assembly breaks down into separately orderable spares using the same body-port suffix: GAF400-15, GAR400-15 and GAL400-15. Because the lower pressure type tops out at 0.4 MPa, it provides only 44% of the standard 0.9 MPa ceiling, making it the wrong choice if the machine may ever need higher pressure.
Quick checklist
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a filter-regulator instead of an F.R.L. combination on that branch.
This unit regulates air from 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates in temperatures from -5 to 70 C, uses a 40 um element, and weighs 2390 g. The drain bowl holds 100 cc and the oil bowl holds 185 cc, requiring ISO VG 32 or equivalent lubricant.
The metal bowl provides a robust housing option for industrial settings, though buyers should verify compatibility with specific solvents in their environment. The lower pressure type restricts the adjustment ceiling to 0.4 MPa, making it suitable only for applications that specifically require this restricted range rather than the standard 0.9 MPa.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.