
The AirTAC Airtac GAC F.R.L. Unit GAC400N10ALWK 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, this AirTAC GAC400N10ALWK combines a filter, regulator and lubricator on a single L-shape bracket. The 3/8in port pairs with a 5 um element to trap fine particles before they reach precision valves. Air passes through the filter first, then the regulator sets the 0.15-0.4 MPa (20-58 psi) outlet pressure, and oil mist is added last so it never fouls the regulator seat.
Weighing 2390 g, this body needs a proper panel or frame mount rather than tubing support. The nylon bowl houses a 100 cc condensate chamber and a 185 cc oil reservoir. An automatic drain clears water without an operator, while a circular gauge reads MPa/psi for the default PT thread. The reverse-flow (reflux) valve is fitted, shown as a separate pneumatic symbol in the catalogue.
| Model | Airtac GAC F.R.L. Unit GAC400N10ALWK |
|---|---|
| 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 | 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). |
| 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). |
| (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 sensitive pneumatic valves in CNC tool changers using the 5 um element to prevent sticking.
Regulates delicate gripping pressure on carton erecting machines where the 0.4 MPa ceiling prevents crushing.
Conditions air for multi-axis fluid dispensing robots requiring steady low pressure and fine filtration.
Choose this lower-pressure type for circuits capped at 0.4 MPa; if the machine may ever need more, the L type is the wrong part. The 5 um element suits instrument air but needs more frequent service than the 40 um standard. A semi-auto plus manual drain is the default, but this A code specifies an automatic drain for unattended or wet lines. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead. Spares share the 400-10 suffix: GAF400-10, GAR400-10, GAL400-10. The catalogue flow curve for the GAC400 is plotted to 6000 L/min at 0.7 MPa inlet, exactly double the GAC300's 3000 L/min envelope, giving a clear sizing step. The 0.4 MPa ceiling is 44% of the Standard type's 0.9 MPa maximum.
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 model regulates from 0.15-0.4 MPa (20-58 psi) against a 1.0 MPa (145 psi) maximum and a 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C, weighs 2390 g, holds 100 cc of condensate and 185 cc of oil, and uses ISO VG 32 lubricant.
The K indicates a reverse-flow (reflux) valve is fitted. The catalogue draws this as a separate pneumatic symbol with details on its own page; it is an ordering difference and does not change the core air preparation function.
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.