Airtac GAC F.R.L. Unit GAC400C15ALNWK
The AirTAC Airtac GAC F.R.L. Unit GAC400C15ALNWK 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 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size1/2"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeNot fitted
- Weight2390 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAC F.R.L. Unit GAC400C15ALNWK
Delivering cleaned, regulated and lubricated air for medium-duty pneumatics, this AirTAC F.R.L. combination integrates a filter, regulator and lubricator on a single L-shape bracket. The 1/2in port serves the 2390 g GAC400 body, while the internal flow path sequences filtration, pressure control and oil-misting to ensure the regulator seat never fouls. This specific variant features a robust metal bowl and a 5 um element for capturing fine particulates ahead of precision valves.
Configured for low-pressure duties, the unit regulates between 0.15-0.4 MPa (20-58 psi) and relies on an automatic drain to purge condensate from its 100 cc bowl without operator intervention. Because no gauge is supplied, the set pressure cannot be read without adding a 1/4in gauge to the dedicated port. A reverse-flow (reflux) valve is fitted, which the catalogue shows as a separate pneumatic symbol with details on its own page.
Airtac GAC F.R.L. Unit GAC400C15ALNWK Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC400C15ALNWK |
|---|---|
| Series | GAC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | Metal |
| 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. No gauge is supplied with this model — the gauge connection on a GAC400 is 1/4" if you add one.
Model Code: Airtac GAC F.R.L. Unit GAC400C15ALNWK
| 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". |
| 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). |
| 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.
Size Class & Flow Envelope
- GAC2001/8"-1/4" · 1750 L/min
- GAC3001/4"-1/2" · 3000 L/min
- GAC4003/8"-1/2" · 6000 L/min
- GAC5003/4" · 7000 L/min
- GAC6003/4"-1" · 12000 L/min
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 |
Where the Airtac GAC F.R.L. Unit GAC400C15ALNWK Is Used
Precision Valve Lines
Feeds sensitive directional valves in CNC tooling where the 5 um element prevents sticking and the low 0.15-0.4 MPa output protects delicate diaphragms.
Low-Force Sealing
Conditions air for light-touch packaging cylinders that require a steady, lower-pressure supply to avoid crushing cardboard cartons during flap folding.
Laboratory Actuators
Supplies metered oil mist and stable low pressure to pneumatic dosing pumps in analytical labs, with the metal bowl resisting harsh cleaning solvents.
Is the Airtac GAC F.R.L. Unit GAC400C15ALNWK the Right Air-Prep Unit?
Choose this assembly when a machine requires precise low-pressure control between 0.15-0.4 MPa (20-58 psi) rather than the standard 0.15-0.9 MPa range. The 5 um element provides finer filtration than the 40 um standard, trading element service frequency for better protection of downstream instrumentation. If the application requires oil-free exhaust, this lubricator must be omitted entirely and a separate filter-regulator selected instead. Maintenance is straightforward since the assembly comprises individually orderable spares: GAF400-15, GAR400-15 and GAL400-15.
Sizing against neighbouring bodies, the GAC400 flow envelope is plotted to 6000 L/min at 0.7 MPa inlet, exactly double the 3000 L/min envelope of the smaller GAC300. Despite the larger capacity, the lower-pressure type tops out at 0.4 MPa, which is 44% of the standard 0.9 MPa ceiling.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 2390 g unit on its bracket, not on the tubing.
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.
Airtac GAC F.R.L. Unit GAC400C15ALNWK FAQ
This lower-pressure unit regulates from 0.15-0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, weighs 2390 g, and pairs a 100 cc condensate bowl with a 185 cc oil reservoir. The recommended lubricant is ISO VG 32.
The N in the ordering code indicates no gauge is supplied from the factory. To read the downstream setting, operators must fit a circular gauge to the 1/4in connection on the body, selecting a scale appropriate for the 0.15-0.4 MPa low-pressure range.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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