
The AirTAC Airtac GAC F.R.L. Unit GAC400N15SW 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 pneumatics, this AirTAC GAC400N15SW F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 1/2in port pairs with a 5um element to trap fine particulates before they reach sensitive valves. A standard pressure range of 0.15-0.9 MPa (20-130 psi) is maintained, while the included circular gauge reads in MPa/psi for the default PT thread.
Air passes through the filter first, then the regulator, with oil mist added last so the internal seat never fouls. The 2390g assembly uses a nylon bowl housing 100 cc of condensate capacity and 185 cc of oil. Because the unit adds oil downstream, select a separate filter-regulator if your process requires strictly dry, unlubricated lines.
| Model | Airtac GAC F.R.L. Unit GAC400N15SW |
|---|---|
| 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 | 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). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual 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 main air headers for robotic welding cells where a 1/2in supply and 5um filtration protect precision grippers from fine scale ingress.
Conditions air for continuous motion packaging machines, ensuring the 0.15-0.9 MPa operating range holds steady during rapid cylinder cycling.
Supplies lubricated air to pneumatic tool change systems on machining centers, relying on the 185 cc oil bowl to maintain consistent mist over long shifts.
This 1/2in ported unit sits in the GAC400 size class, striking a balance between flow capacity and physical footprint. The catalogue flow curve for the GAC400 is plotted to 6000 L/min at 0.7 MPa inlet, which is exactly double the 3000 L/min envelope of the smaller GAC300. It carries a factory-fitted circular gauge reading MPa/psi, and the semi-auto plus manual drain pair handles condensate removal. The 5um nylon element provides finer filtration than the 40um standard, requiring more frequent service to prevent clogging. Replacement spares are ordered individually as GAF400-15, GAR400-15 and GAL400-15. Stepping up from the GAC300 gives you exactly 2x the plotted flow envelope at 0.7 MPa inlet.
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 operates at 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It functions from -5 to 70 C, features a 5um element, and uses ISO VG 32 lubricant. The drain bowl holds 100 cc, the oil bowl holds 185 cc, and the assembly weighs 2390 g.
The 5um W element catches far finer particles than the standard 40um filter, making it ideal for instrument air or precision valves, though it requires more frequent replacement. The nylon bowl provides a durable, lightweight housing alternative to the standard PC material while retaining the same 1.0 MPa pressure rating.
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.