
The AirTAC Airtac GAC F.R.L. Unit GAC400N10ALNK 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 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
Delivering cleaned, regulated and lubricated air for pneumatic systems, this GAC400N10ALNK is a complete F.R.L. combination pairing a filter, regulator and lubricator on a single L-shape bracket. The assembly features a 3/8in port, a 40 um element and a nylon bowl. Because the lubricator sits last in the airflow path, oil mist is introduced downstream of the regulator seat, preventing fouling of internal components.
This specific configuration operates in the lower pressure band of 0.15-0.4 MPa (20-58 psi) and includes an automatic drain that clears condensate without operator intervention. No pressure gauge is supplied, but a 1/4in gauge connection allows for later addition if visual monitoring is needed. The reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue, and the unit weighs 2390 g.
| Model | Airtac GAC F.R.L. Unit GAC400N10ALNK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 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). |
| 10 | Port size 3/8". 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. |
| (blank) | Filtering grade 40 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 sensitive looms and spinning frames where the 0.15-0.4 MPa range prevents damage to delicate fibers while the automatic drain handles constant moisture.
Supplies regulated, lubricated air to low-force sealing jaws and conveyor diverters that rely on gentle actuation rather than high-torque cylinders.
Conditions air for benchtop analytical instruments requiring stable low-pressure input, with the nylon bowl resisting accidental chemical splashes.
Choose this 3/8in body when a machine requires low-pressure regulation between 0.15-0.4 MPa (20-58 psi). If the application ever demands a higher outlet pressure, this L-type assembly is the wrong part, as the Standard type regulates up to 0.9 MPa. The nylon bowl offers a lightweight alternative to metal or PC, though buyers should confirm material compatibility for aggressive surroundings. The automatic drain pairs well with the 100 cc condensate bowl for unattended wet lines, while the 185 cc oil bowl sets the lubrication service interval. Since no gauge is included, operators cannot read the set pressure without adding one to the 1/4in connection. The build omits an oil-free output, so select a separate filter-regulator if the downstream line must remain dry. Replacement spares follow the 400-10 suffix: GAF400-10, GAR400-10 and GAL400-10. Compared to the GAC300, the 100 cc drain bowl here holds roughly 1.6x the condensate of the 60 cc bowl, stretching the time between maintenance visits.
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 unit regulates from 0.15-0.4 MPa (20-58 psi). It shares a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi) with the rest of the series. Operating temperature is -5 to 70 C, and the recommended lubricant is ISO VG 32. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the assembly weighs 2390 g.
The N in the code means no gauge is supplied, so a gauge must be added to the 1/4in connection to read the set pressure. The K indicates a reverse-flow (reflux) valve is fitted, which the catalogue draws as a separate pneumatic symbol with details on its own page.
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