
The AirTAC Airtac GAC F.R.L. Unit GAC400C15SWK 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, pressure-set and oil-misted air, this GAC400C15SWK assembly integrates a filter, regulator and lubricator on a single L-shape bracket with quick mounting clamps. The 1/2in port pairs with a 5 um element to capture fine particulates before they reach precision valves, while the standard pressure range spans 0.15-0.9 MPa (20-130 psi). A circular gauge reading MPa/psi is fitted for the default PT thread.
Air passes through the filter first, then the regulator, with oil mist injected downstream of the regulator seat to prevent fouling. The metal bowl equips this unit for rugged plant environments, and the assembly carries a 2390 g mass. A reverse-flow (reflux) valve is fitted, shown in the catalogue as a separate pneumatic symbol with details on its own page.
| Model | Airtac GAC F.R.L. Unit GAC400C15SWK |
|---|---|
| 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 | Metal |
| 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. |
|---|---|
| C | Bowl material: Metal. 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. |
| 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 |
Feeds multi-axis actuators and tool changers where the 5 um element protects precision spool valves from fine machining swarf.
Conditions air for high-speed pneumatic folding arms and sealing heads that demand a steady 1/2in flow of lubricated air.
Supplies robotic grippers and spot-welding cylinders, relying on the metal bowl to withstand an industrial production floor.
Choose this 1/2in body when a mid-size line requires fine 5 um filtration; stepping up to the GAC500 increases the plotted flow envelope from 6000 to 7000 L/min at 0.7 MPa inlet, while dropping to the GAC300 reduces it to 3000 L/min. The metal bowl suits harsher surroundings than standard PC, and the semi-auto plus manual drain pair clears condensate on every pressure drop or on demand. If the downstream line must stay oil-free, omit the lubricator and choose a filter-regulator instead. Spares share the same body-port suffix: GAF400-15, GAR400-15 and GAL400-15. The 1.0 MPa maximum supply leaves only about 0.1 MPa of headroom above the 0.9 MPa standard setting, so plan a supply near 1.0 MPa if you truly need maximum outlet pressure.
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 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). Temperature range is -5 to 70 C. It features a 100 cc drain bowl, a 185 cc oil bowl, uses ISO VG 32 lubricant, and weighs 2390 g.
The S denotes the standard 0.15-0.9 MPa pressure type, W specifies the 5 um fine filter element, and K indicates a reverse-flow (reflux) valve is fitted. The catalogue shows the reflux valve as a separate pneumatic symbol with details on its own page.
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.