
The AirTAC Airtac GAFC Air Service Unit GAFC600C20ASNK 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 GAFC600C20ASNK is a two-piece F.R.L. combination built for heavy plant air: a filter-regulator body handles filtration and pressure setting, then a lubricator adds metered oil mist downstream. The 3/4in port and 3430 g mass place it at the top of the GAFC range, sized for machine headers and multi-station lines rather than individual actuators.
The metal bowl is specified by the C code, and the automatic drain clears condensate without an operator. It regulates from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element, and the reverse-flow valve is fitted. The catalogue flow curve is plotted to 12000 L/min at 0.7 MPa inlet, which is a sizing envelope rather than a rated capacity.
| Model | Airtac GAFC Air Service Unit GAFC600C20ASNK |
|---|---|
| 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 | 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. |
| (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 multi-station assembly machine header where several actuators draw from one 3/4in line, with the automatic drain handling condensate from continuous operation.
Supply a stamping press clutch and brake circuit where the lubricator adds ISO VG 32 oil mist to protect downstream valves, while the regulator holds a stable setpoint.
Prepare air for a hydraulic test bench's pneumatic clamping system, where the 205 cc bowl reduces how often an operator must check condensate levels.
Choose the GAFC600 when a 3/4in port and 205 cc condensate bowl plus 410 cc oil bowl match your line's service interval. The metal bowl is a build choice, and the common specification of 1.0 MPa max and -5 to 70 C applies regardless of material, so confirm it suits your environment. The automatic drain suits unattended operation, and the no-gauge version leaves a 1/4in connection if you add one later. The PT thread carries an MPa/psi scale, and the 40 um element is the standard grade. Spares are orderable as GAFR600-20 and GAL600-20. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the regulated range.
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.
It operates from 0.15 to 0.9 MPa (20-130 psi) with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C, and it uses ISO VG 32 oil. The drain bowl holds 205 cc, the oil bowl holds 410 cc, and the unit weighs 3430 g.
The K indicates a reverse-flow (reflux) valve is fitted. The catalogue shows it as a separate pneumatic symbol, and it is an ordering difference from a standard GAFC600. The unit also has no gauge, leaving a 1/4in connection if you want to add one.
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