
The AirTAC Airtac GAFC Air Service Unit GAFC600C20ASNWK 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 5 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
This GAFC600 F.R.L. combination pairs a filter-regulator body with a lubricator on a single T-bracket, so the air is cleaned, set to pressure, then given a metered oil mist in the last stage. With a 3/4in port and a 3430 g mass, it belongs to the largest GAFC size class and needs a proper panel or frame mount rather than support from the tubing. The 5 um element traps fine particles for sensitive downstream equipment, while the metal bowl and automatic drain suit a permanent installation where regular attendance is not planned.
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. The 205 cc condensate bowl and 410 cc oil bowl are both metal, and the unit must not freeze, so keep it above -5 to 70 C. No gauge is supplied with this model; the 1/4in gauge connection is there if you add one later. The reverse-flow (reflux) valve is fitted as part of this build.
| Model | Airtac GAFC Air Service Unit GAFC600C20ASNWK |
|---|---|
| Series | GAFC600 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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 | 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". |
| A | Drain: Automatic 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. |
| W | Filtering grade 5 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 supplying coolant valves and cylinders on a CNC lathe or machining center, where the 5 um element protects precision spool valves from fine swarf.
Supply a bank of pneumatic actuators on a pallet conveyor with regulated, lubricated air, and let the automatic drain handle condensate from a humid plant air supply.
Run the tensioning cylinders on a high-speed film wrapper from this unit, using the 0.15-0.9 MPa range to set a stable web tension and the oil mist to keep rod seals wetted.
The GAFC600 is the top of the GAFC range, offered only with a metal bowl and standard pressure type. The 3/4in port feeds a machine header or multi-station line, and the catalogue flow curve is plotted to 12000 L/min at 0.7 MPa inlet, so size the downstream piping for that envelope. The automatic drain clears condensate without an operator, which suits a line that runs unattended or in a wet environment. The 5 um element gives finer filtration than the standard 40 um, but expect to service it more often. The PT thread comes with a gauge scale in MPa/psi, though no gauge is fitted here - the 1/4in connection is ready for one. The reverse-flow valve is present, and the two units are orderable separately as GAFR600-20 and GAL600-20, so a damaged bowl or clogged element does not mean replacing the whole assembly. If the line must stay oil-free, choose a plain GAFR filter-regulator instead of this lubricated set. The 205 cc drain bowl holds about 8x the condensate of the GAFC200's 25 cc, so this large body is attended far less often.
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. The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C and it must not freeze. The drain bowl holds 205 cc and the oil bowl 410 cc. Recommended lubricant is ISO VG 32. The complete unit weighs 3430 g.
The N in the code after the port means no gauge is supplied with this unit. The GAFC600 body has a 1/4in gauge connection, so you can fit a circular gauge there later if you need to read the set pressure. The PT thread on this model would use a gauge scale in MPa/psi.
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