
The AirTAC Airtac GAFC Air Service Unit GAFC600C20SNK 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 3/4" ports, a 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
This AirTAC GAFC600C20SNK is a two-piece F.R.L. combination built for a 3/4in air line. The first body houses both the filter and the regulator, so the air is cleaned and set to pressure before it reaches the lubricator, which adds a metered oil mist last. It operates across 0.15-0.9 MPa (20-130 psi) with a 40 um element, and the metal bowl is the only option for this size.
The GAFC600 is the largest in the series at 3430 g, with a 205 cc condensate bowl and a 410 cc oil bowl. Because the filter and regulator share one body, there is one less inter-unit joint to seal compared with a three-piece filter-regulator-lubricator train. The reverse-flow valve is fitted, and the gauge connection is 1/4in if you add one later.
| Model | Airtac GAFC Air Service Unit GAFC600C20SNK |
|---|---|
| Series | GAFC600 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 40 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 | 205 cc |
| Capacity of oil bowl | 410 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 3430 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 GAFC600 is 1/4" if you add one.
| GAFC600 | GA600 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: Metal (C) only. |
| 20 | Port size 3/4". This body offers 20 = 3/4", 25 = 1". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) only. |
| N | No pressure gauge; 1/4" gauge connection. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR600-20 filter & regulator, GAL600-20 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 | GAFC600 · 3/4" · curve to 12000 L/min |
|---|---|
| One size down | GAFC500 |
| Build order | Filter & regulator → bracket → lubricator |
Feed a 3/4in header on a CNC lathe or milling center, where the 205 cc condensate bowl and 410 cc oil bowl keep service intervals long between shifts.
Supply a bank of pneumatic cylinders on an automotive assembly line, with the semi-auto drain clearing condensate each time the line stops.
Prepare air for spray guns in a finishing booth, where the 40 um element removes solids and moisture before the lubricator adds a fine oil mist to the airstream.
Choose the GAFC600 when a 3/4in line feeds a machine header or a multi-station line. The metal bowl is standard for this body, and the semi-auto drain dumps condensate on each pressure drop while the manual drain works on demand. The 40 um element suits general shop air; step up to the 5 um element if you need finer filtration for sensitive valves. The PT thread and MPa/psi gauge scale are the default, and the K code adds the reverse-flow valve. The two units are orderable separately as the GAFR600-20 filter & regulator and the GAL600-20 lubricator. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range, so plan the supply pressure carefully if you need the full output.
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 GAFR600-20 filter-regulator on that branch instead of the full combination.
This F.R.L. combination works with air only, filtering to 40 um. The pressure range is 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). It operates from -5 to 70 C and must not freeze. The drain bowl holds 205 cc and the oil bowl 410 cc, with a total weight of 3430 g. Use ISO VG 32 lubricant.
The N in the code means no gauge is supplied. The GAFC600 has a 1/4in gauge connection, so you can add a circular gauge later if you need to read the set pressure. Without one, you cannot verify the regulated pressure directly on the unit.
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