Airtac GAC F.R.L. Unit GAC400N15LW
The AirTAC Airtac GAC F.R.L. Unit GAC400N15LW 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 materialNylon
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- 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 GAC400N15LW
Delivering cleaned, regulated and lubricated air, the AirTAC GAC400N15LW is a three-unit F.R.L. combination built on a single L-shape bracket with quick mounting clamps. This specific assembly features a 1/2in port, a nylon bowl, and a 5 um element, operating within a lower pressure range of 0.15-0.4 MPa (20-58 psi). A circular gauge is fitted, reading MPa/psi for the default PT thread.
The internal build sequence routes air through the filter, then the regulator, and finally the lubricator, ensuring oil mist is added downstream so the regulator seat never fouls. Its 2390 g mass and 1/2in porting place it firmly in a mid-size class that requires a proper panel or frame mount rather than tubing support. The 5 um element traps far finer particles than the standard 40 um grade, trading precision for more frequent element service, making it ideal for sensitive pneumatic valves.
Airtac GAC F.R.L. Unit GAC400N15LW Technical Specifications
| Model | Airtac GAC F.R.L. Unit GAC400N15LW |
|---|---|
| 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 | 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.
Model Code: Airtac GAC F.R.L. Unit GAC400N15LW
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 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.
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 GAC400N15LW Is Used
Precision Valve Arrays
Feeds sensitive directional control valves in packaging machinery where the 5 um element prevents particulate ingestion and the 0.4 MPa ceiling protects delicate diaphragms.
Laboratory Pneumatics
Conditions supply air for low-force analytical instruments, providing stable sub-0.4 MPa pressure and fine lubrication for small syringe or sampling actuators.
Textile Guiding Systems
Regulates air for low-tension fabric guiding cylinders, ensuring consistent oil mist delivery to sliding guides without exceeding the 0.4 MPa operating limit.
Is the Airtac GAC F.R.L. Unit GAC400N15LW the Right Air-Prep Unit?
Choose this GAC400 unit for mid-capacity lines requiring highly filtered, low-pressure air. The body offers a 100 cc drain bowl and a 185 cc oil bowl, meaning fewer interventions than a GAC300 (60 cc drain / 98 cc oil). It ships with both a semi-auto and manual drain; the semi-auto dumps condensate on each pressure drop, while the manual operates on demand. If the machine might ever need more than 0.4 MPa, this lower-pressure L type is the wrong part, as it tops out at 0.4 MPa. Note that oil mist is added downstream; choose a filter-regulator instead if the line must stay oil-free. The three units are separately orderable as GAF400-15, GAR400-15 and GAL400-15. The 0.4 MPa ceiling is about 44% of the Standard type's 0.9 MPa maximum, quantifying exactly what the buyer gives up when choosing this L type.
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 GAC400N15LW FAQ
This lower-pressure type operates at 0.15-0.4 MPa (20-58 psi) with a max 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, the drain bowl holds 100 cc, the oil bowl holds 185 cc, the unit weighs 2390 g, and the recommended lubricant is ISO VG 32.
The W code specifies a 5 um filtering grade, which traps far finer particles than the standard 40 um element, making it suitable for precision instrument air at the cost of more frequent element service. The N before the port indicates a nylon bowl, chosen as a build and environment option; buyers must confirm material compatibility for aggressive surroundings, as the 1.0 MPa max and -5 to 70 C specs remain identical across all bowl materials.
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.
Related AirTAC Air-Preparation Units
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