
The AirTAC Airtac GAC F.R.L. Unit GAC400N15ASW 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 5 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
Delivering cleaned, regulated and lubricated air for demanding pneumatic setups, this GAC400 unit integrates a filter, regulator and lubricator on a single L-shape bracket. The 1/2in port serves mid-to-high volume duties, while the 5 um element traps fine particulates before they reach precision valves. A nylon bowl equips this specific variant, and the automatic drain clears condensate without an operator.
Air flows through the filter first, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Operating at 0.15-0.9 MPa (20-130 psi), the assembly carries a 2390 g mass that requires a solid panel mount rather than tubing support. The fitted circular gauge reads MPa/psi for the default PT thread, letting technicians verify the set pressure instantly.
| Model | Airtac GAC F.R.L. Unit GAC400N15ASW |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Nylon |
| Drain type | Automatic 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. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 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 clean, oil-misted air to multi-axis machining centers where the 5 um element protects sensitive pneumatic tool changers from fine swarf.
Conditions air for high-speed packaging machinery, using the 100 cc drain bowl to capture condensate during long, unattended production shifts.
Serves as a primary air prep point for multi-station assembly lines, utilizing the 1/2in port to maintain steady downstream pressure across several actuators.
Choose this 1/2in assembly when a machine demands finer filtration than the standard 40 um grade, accepting that the 5 um element requires more frequent replacement. The nylon bowl suits environments where visibility of the fluid level is desired, though buyers must confirm chemical compatibility for aggressive surroundings. An automatic drain is fitted, making it ideal for unattended stations or wet air lines, whereas blank variants ship with semi-auto and manual drains. If the downstream line must remain oil-free, select a filter-regulator instead, as this lubricator intentionally adds oil mist. Spares are available as GAF400-15, GAR400-15 and GAL400-15. Stepping down to the GAC300 halves the plotted flow envelope to 3000 L/min at 0.7 MPa inlet, whereas this body reaches 6000 L/min. The 1.5 MPa proof pressure provides a 1.5x burst-test margin above the 1.0 MPa maximum, but this does not permit running above 1.0 MPa.
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 standard type unit regulates from 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates in -5 to 70 C temperatures, weighs 2390 g, and features a 100 cc drain bowl with a 185 cc oil bowl. ISO VG 32 is the recommended lubricant.
The W code specifies a 5 um element, trapping far finer particles than the 40 um standard for precision instrument air, at the cost of more frequent element service. The A code indicates an automatic drain, which clears the 100 cc condensate bowl without an operator, which is decisive for unattended or wet lines.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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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.