
The AirTAC Airtac GAC F.R.L. Unit GAC400N15SNW 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 pneumatic setups, this AirTAC GAC400N15SNW F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. It features a 1/2in port, a standard pressure range of 0.15-0.9 MPa (20-130 psi) and a 5 um element that captures fine particles for sensitive valves. The 2390 g mass requires a firm panel or frame mount rather than tubing support.
The nylon bowl equips this unit with a 100 cc condensate capacity and a 185 cc oil reservoir, reducing maintenance frequency compared to smaller bodies. Because no gauge is supplied, the set pressure cannot be read without adding one to the 1/4in gauge connection. Air flows through the filter first, then the regulator, with oil mist injected last downstream of the regulator seat to prevent fouling.
| Model | Airtac GAC F.R.L. Unit GAC400N15SNW |
|---|---|
| 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. |
| (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 port and 5 um filtration protect precision grippers from particulate ingress.
Conditions air for high-speed pneumatic fold arms and glue guns, relying on the 100 cc drain bowl to handle moisture from continuous duty cycles.
Supplies stable 0.15-0.9 MPa pressure to automatic tool changers, ensuring consistent actuator force while the lubricator oils internal moving seals.
Choose this GAC400 body for mid-to-high flow duties, noting the catalogue flow curve is plotted to 6000 L/min at 0.7 MPa inlet, which is double the GAC300 envelope of 3000 L/min. The 5 um W element traps far finer particulate than the standard 40 um grade, trading element service frequency for cleaner downstream air. A semi-auto and manual drain pair is fitted, while the N code means no gauge is included. If your line must stay oil-free, select a filter-regulator instead because this lubricator adds oil mist downstream. Replacement spares are GAF400-15, GAR400-15 and GAL400-15. Stepping up from the GAC300 gives you a 1.7x larger drain bowl capacity, dropping your condensate interventions significantly.
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 model operates at 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C. It features a 100 cc drain bowl, a 185 cc oil bowl, a 5 um element and weighs 2390 g. The recommended lubricant is ISO VG 32 or equivalent.
The N in the ordering code indicates no gauge is supplied. The body has a 1/4in gauge connection, so you must install a separate PT-threaded gauge reading in MPa/psi to verify the 0.15-0.9 MPa setpoint.
Genuine AirTAC parts produced by AirTAC factory.
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