
The AirTAC Airtac GAFC Air Service Unit GAFC40015LN 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 40 µm filter element and regulates 0.15 - 0.4 MPa (20 - 58 psi).
This AirTAC F.R.L. combination pairs a filter-regulator with a lubricator on one T-shaped bracket, so the air is cleaned and set to pressure in the first body before the lubricator adds a controlled oil mist last. The GAFC40015LN uses a 1/2in port and a 40 um element, with a lower-pressure regulator range of 0.15-0.4 MPa (20-58 psi).
Two separate bowls serve the two stages: the 100 cc condensate bowl collects water and solids from the filter, while the 185 cc oil bowl feeds the lubricator. At 1810 g, this unit is a substantial piece of air prep hardware that needs a proper panel or frame mount rather than support from the tubing. The catalogue flow curve for the GAFC400 is plotted to 6000 L/min at 0.7 MPa inlet, giving a sizing envelope rather than a rated capacity.
| Model | Airtac GAFC Air Service Unit GAFC40015LN |
|---|---|
| Series | GAFC400 F.R.L. combination |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| Bowl material | PC |
| 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 | 1810 g |
Specifications follow the official AirTAC GAFC catalogue (pages 219-220). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAFC400 is 1/4" if you add one.
| GAFC400 | GA400 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. 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). |
| N | No pressure gauge; 1/4" gauge connection. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
Constituent units, orderable separately as spares: GAFR400-15 filter & regulator, GAL400-15 lubricator — both share this body and port. A GAFC has two units, not three: the filter and the regulator are one body.
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 | GAFC400 · 1/2" · curve to 6000 L/min |
|---|---|
| One size down | GAFC300 |
| One size up | GAFC500 (curve to 7000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Feed a precision pneumatic press or a calibrated test fixture that needs a stable, lower regulated pressure. The 0.15-0.4 MPa range suits delicate operations where higher force would damage parts.
Supply a CNC machine tool's way lubrication system with filtered, regulated air and a metered oil mist. The 185 cc oil bowl supports longer runs between refills on a single shift.
Mount this unit on a medium assembly line feeding pneumatic screwdrivers or nutrunners. The 100 cc condensate bowl and 185 cc oil bowl reduce maintenance stops compared to smaller FRL units.
The GAFC400 body with a 1/2in port sits between the smaller GAFC300 (3/8in or 1/2in ports, 1020 g, 3500 L/min envelope) and the larger GAFC500 (3/4in port, 1910 g, 7000 L/min envelope). The PC bowl is the standard build; the catalogue gives no impact or chemical data, so confirm it suits your environment. The semi-auto drain dumps condensate when pressure drops, while the manual drain works on demand. The L type tops out at 0.4 MPa, so if your machine may ever need more than that, this is the wrong part. No gauge is supplied; the 1/4in gauge connection is ready for one if you add it later. Spare parts are the GAFR400-15 filter-regulator and the GAL400-15 lubricator, both orderable separately. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range, so you have ample inlet pressure headroom for consistent regulation.
Quick checklist
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a plain GAFR400-15 filter-regulator on that branch instead of the full combination.
The GAFC40015LN is a lower-pressure F.R.L. combination with a working range of 0.15-0.4 MPa (20-58 psi). Maximum pressure is 1.0 MPa (145 psi) and proof pressure is 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The drain bowl holds 100 cc and the oil bowl holds 185 cc. Recommended lubricant is ISO VG 32. The complete unit weighs 1810 g.
The N in the code GAFC40015LN means no gauge is supplied. The regulator still has a 1/4in gauge connection port, so you can add a circular gauge later if you need to read the set pressure. Without a gauge, you cannot visually confirm the outlet pressure, so plan to install one if your process requires precise monitoring.
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