Airtac GAFC Air Service Unit GAFC300N15LW
The AirTAC Airtac GAFC Air Service Unit GAFC300N15LW is a genuine two-piece F.R.L. combination — a GA-series filter & regulator and a lubricator pre-assembled on one T-shape 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
- Weight1020 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 GAFC Air Service Unit GAFC300N15LW
Air enters the GAFC300N15LW and first passes through a nylon-bowled filter that removes moisture and solid particles down to 5 um, then through the regulator, which holds the outlet at a lower-pressure band of 0.15-0.4 MPa (20-58 psi). The lubricator, mounted downstream on the same T-bracket, then adds a controlled ISO VG 32 oil mist to the air stream, so the three functions happen in the correct order without oil ever travelling back through the regulator seat.
This 1/2in-port combination weighs 1020 g and carries a 60 cc condensate bowl plus a 98 cc oil bowl, which sets the service rhythm for the unit. The circular gauge, graduated in MPa and psi, is fitted so the set pressure is visible at a glance. With a 1.0 MPa (145 psi) maximum supply, the unit leaves about 0.6 MPa of headroom above its 0.4 MPa top setting, so a supply near the maximum is needed to reach the upper end of the range.
Airtac GAFC Air Service Unit GAFC300N15LW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC300N15LW |
|---|---|
| Series | GAFC300 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 | 60 cc |
| Capacity of oil bowl | 98 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1020 g |
Specifications follow the official AirTAC GAFC catalogue (pages 219-220). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code.
Model Code: Airtac GAFC Air Service Unit GAFC300N15LW
| GAFC300 | GA300 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 08 = 1/4", 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: GAFR300-15 filter & regulator, GAL300-15 lubricator — both share this body and port. A GAFC has two units, not three: the filter and the regulator are one body.
Size Class & Flow Envelope
- GAFC2001/8"-1/4" · 1750 L/min
- GAFC3001/4"-1/2" · 3500 L/min
- GAFC4003/8"-1/2" · 6000 L/min
- GAFC5003/4" · 7000 L/min
- GAFC6003/4"-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 | GAFC300 · 1/2" · curve to 3500 L/min |
|---|---|
| One size down | GAFC200 |
| One size up | GAFC400 (curve to 6000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Where the Airtac GAFC Air Service Unit GAFC300N15LW Is Used
Precision valve control
Feed a 5 um-filtered, lower-pressure supply to pilot-operated valves on a packaging line, where the 0.4 MPa ceiling protects delicate actuators from over-pressurization.
Machine tool lubrication
Supply oil-misted air to a slideway lubrication system on a CNC lathe, where the 98 cc oil bowl supports extended runs between refills.
Assembly station air prep
Condition air for pneumatic hand tools at a workbench assembly station, using the 1/2in port to feed multiple tools from one filtered and regulated source.
Is the Airtac GAFC Air Service Unit GAFC300N15LW the Right Air-Prep Unit?
The GAFC300 body suits medium-duty lines where a 1/2in port and a 3500 L/min flow curve (plotted at 0.7 MPa inlet) are appropriate. The nylon bowl is the build choice here; the catalogue gives no impact or chemical data for bowl materials, so confirm it suits your environment. The semi-auto drain dumps condensate when pressure drops, while the manual drain handles it on demand. The 5 um element traps finer particles than the standard 40 um grade, which protects precision valves but requires more frequent element service. The PT thread carries a gauge scale in MPa/psi, matching the fitted circular gauge. If the line must stay oil-free, omit the lubricator and choose a plain GAFR300-15 filter-regulator instead. The two units are separately orderable as GAFR300-15 and GAL300-15. With a 1.0 MPa max supply, the regulated band tops out at 0.4 MPa, so the L type gives up about 44% of the standard type's 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-regulator 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 60 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1020 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 plain GAFR300-15 filter-regulator on that branch instead of the full combination.
Airtac GAFC Air Service Unit GAFC300N15LW FAQ
This lower-pressure unit operates at 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). The temperature range is -5 to 70 C and it must not freeze. It has a 60 cc drain bowl and a 98 cc oil bowl, weighs 1020 g, and uses ISO VG 32 lubricant. The 5 um element filters the air before regulation.
The L in the code specifies the lower-pressure type, which tops out at 0.4 MPa (58 psi) instead of the standard 0.9 MPa (130 psi). The W indicates a 5 um element, which traps finer particles than the standard 40 um grade. This combination suits applications with sensitive components that need both fine filtration and a limited pressure ceiling.
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