
The AirTAC Airtac GAC F.R.L. Unit GAC400N15ALNW 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 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for pneumatic systems, this AirTAC unit combines a filter, regulator and lubricator on a single L-shape bracket. It features a 1/2in port, a 5 um element for fine particle retention, and a nylon bowl. The lower-pressure type restricts the operating range to 0.15-0.4 MPa (20-58 psi), making it suitable for sensitive circuits. An automatic drain clears condensate without operator intervention.
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. Weighing 2390 g, this assembly requires a solid panel or frame mount rather than tubing support. No gauge is supplied, but a 1/4in gauge connection allows a pressure indicator to be added later if needed.
| Model | Airtac GAC F.R.L. Unit GAC400N15ALNW |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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. No gauge is supplied with this model — the gauge connection on a GAC400 is 1/4" if you add one.
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 sensitive solenoid valve banks requiring low, stable pressure and 5 um filtration to prevent spool sticking.
Conditions air for delicate analytical instruments where operating pressures must stay below 0.4 MPa.
Supplies soft-grip actuators handling fragile goods, ensuring consistent low-force motion via regulated oil-misted air.
Choose this configuration for medium-flow duties requiring precise low-pressure control and fine filtration. The 5 um element traps far smaller particulates than the standard 40 um grade, protecting precision valves and instruments at the cost of more frequent element service. The automatic drain is decisive for unattended or wet lines, emptying the 100 cc condensate bowl without manual effort. If the machine must stay oil-free, omit the lubricator and choose a filter-regulator instead. For maintenance, the individual units are separately orderable as GAF400-15, GAR400-15 and GAL400-15.
The catalogue flow curve for the GAC400 is plotted to 6000 L/min at 0.7 MPa inlet, offering a substantial sizing envelope. Because this is the lower-pressure type, the 0.4 MPa ceiling is 44% of the 0.9 MPa standard limit.
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 lower-pressure type operates at 0.15-0.4 MPa (20-58 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C. It features a 100 cc drain bowl, a 185 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2390 g.
No gauge is supplied with this unit. However, the body features a 1/4in gauge connection, allowing you to install a compatible pressure indicator reading in MPa/psi to match the default PT thread.
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.