
The AirTAC Airtac GAC F.R.L. Unit GAC400N10LWK 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 3/8" ports, a 5 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for downstream pneumatics, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The nylon bowl equips this 3/8in ported unit, which operates within a lower pressure range of 0.15-0.4 MPa (20-58 psi) and utilizes a 5 um element to capture fine particulates for sensitive valve protection.
Air passes through the filter first, then the regulator, ensuring the oil mist introduced by the lubricator never fouls the regulator seat. Weighing 2390 g, this assembly relies on a solid panel mount rather than tubing support. The reverse-flow (reflux) valve is fitted, appearing as a separate pneumatic symbol in the catalogue.
| Model | Airtac GAC F.R.L. Unit GAC400N10LWK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Nylon |
| 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. |
|---|---|
| N | Bowl material: Nylon. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 10 | Port size 3/8". 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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAF400-10 filter, GAR400-10 regulator, GAL400-10 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 · 3/8" · 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 to sensitive laboratory test fixtures and gauging equipment requiring a stable 0.4 MPa maximum supply.
Conditions air for small-bore cylinders in electronics assembly, where the 5 um element protects tiny internal seals from abrasive grit.
Regulates downstream flow for thin-film packaging machines that rely on gentle, low-pressure clamping forces to avoid crushing product.
This model suits applications requiring strict low-pressure control and fine filtration, contrasting with the 0.15-0.9 MPa standard type. The 5 um element demands more frequent service than the 40 um default, a necessary trade-off for precision instrumentation. The fitted circular gauge reads MPa/psi for the default PT thread, allowing direct pressure verification. If the downstream line must remain free of oil, omit the lubricator and choose a filter-regulator instead. Replacement spares share the 400-10 suffix: GAF400-10, GAR400-10 and GAL400-10. Stepping up from the GAC300 roughly doubles the sizing envelope, as the catalogue flow curve for this body is plotted to 6000 L/min at 0.7 MPa inlet versus 3000 L/min on the smaller neighbour. Because the L type tops out at 0.4 MPa, it provides only 44% of the standard 0.9 MPa ceiling.
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 unit regulates from 0.15-0.4 MPa (20-58 psi). It shares a 1.0 MPa (145 psi) max pressure and a 1.5 MPa (215 psi) proof pressure across the range. Operating temperature is -5 to 70 C. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the assembly weighs 2390 g. Use ISO VG 32 or equivalent lubricant.
The K indicates a reverse-flow (reflux) valve is attached. The catalogue lists this as a separate pneumatic symbol with details on its own page, and no functional description is provided in the main specifications. This unit also features a semi-auto and manual drain pair.
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.