
The AirTAC Airtac GAC F.R.L. Unit GAC400N15SNWK 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 mid-size pneumatic systems, this AirTAC GAC400N15SNWK F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 1/2in port pairs with a 2390 g mass, placing it firmly in a size class that demands a solid panel or frame mount rather than tubing support. A 5 um element traps far finer particles than the standard 40 um grade, suiting precision valves and instrument air, at the cost of more frequent element service.
This specific configuration omits the pressure gauge to save space, leaving a 1/4in gauge connection for adding one later; without it, the set pressure cannot be read directly. The nylon bowl holds 100 cc of condensate and 185 cc of oil, establishing the real maintenance interval. Because the lubricator adds oil mist downstream of the regulator seat, choose a separate filter-regulator if the downstream line must remain strictly oil-free.
| Model | Airtac GAC F.R.L. Unit GAC400N15SNWK |
|---|---|
| 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. 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". |
| (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). |
| N | No pressure gauge; 1/4" gauge connection. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAF400-15 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 |
Supplies finely filtered 5 um air to precision tooling changers on CNC machining centers where particulate would jam moving mechanisms.
Conditions air for 1/2in pneumatic grippers and folding cylinders on high-speed automated packaging equipment requiring steady oil mist.
Prepares drive air for pilot-operated directional valves on mid-sized stamping presses, ensuring the regulator seat stays dry.
Select this 400-body unit when a 1/2in port is required alongside a 5 um element and a nylon bowl. The semi-auto and manual drain pair is fitted, dumping condensate on each pressure drop or on demand. If a higher flow duty is needed, stepping up to the GAC500 roughly increases the plotted flow envelope from 6000 L/min to 7000 L/min at 0.7 MPa inlet. The PT thread is standard, and the reverse-flow (reflux) valve is fitted, which the catalogue shows as a separate pneumatic symbol with details on its own page. Spares follow the body-port suffix exactly: GAF400-15, GAR400-15 and GAL400-15. The 1.5 MPa proof pressure provides a 1.5x burst-test margin over the 1.0 MPa maximum, but this is not permission to run above 1.0 MPa.
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 regulates from 0.15-0.9 MPa (20-130 psi) with a max pressure of 1.0 MPa (145 psi) and a 1.5 MPa (215 psi) proof pressure. It operates from -5 to 70 C, weighs 2390 g, uses a 100 cc drain bowl and a 185 cc oil bowl, and requires ISO VG 32 lubricant.
The N in the ordering code means no gauge is supplied. The body features a 1/4in gauge connection, so a separate gauge reading MPa/psi for the default PT thread can be added later if you need to visually monitor the downstream set pressure.
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.