
The AirTAC Airtac GAFC Air Service Unit GAFC300N08SK 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 1/4" ports, a 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GAFC300N08SK is a two-piece F.R.L. combination built for a 1/4in line. The first body houses both the filter and the regulator, so air is cleaned and set to pressure in one step before passing to the lubricator, which adds a metered oil mist last. This order keeps oil away from the regulator seat, a design consequence of the shared body.
This unit regulates from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element. The nylon bowl holds 60 cc of condensate, while the oil bowl holds 98 cc. At 1020 g, it needs a proper panel or frame mount rather than support from the tubing. The circular gauge is fitted and reads in MPa and psi.
| Model | Airtac GAFC Air Service Unit GAFC300N08SK |
|---|---|
| Series | GAFC300 F.R.L. combination |
| Port size | 1/4" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| 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.
| 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). |
| 08 | Port size 1/4". This body offers 08 = 1/4", 10 = 3/8", 15 = 1/2". |
| (blank) | Drain: Semi-auto drain + manual drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR300-08 filter & regulator, GAL300-08 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 | GAFC300 · 1/4" · curve to 3500 L/min |
|---|---|
| One size down | GAFC200 |
| One size up | GAFC400 (curve to 6000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Feed a single 1/4in-actuated jig or clamp cylinder on an assembly bench. The 40 um element protects the valve, while the lubricator keeps the cylinder seal moving.
Supply a short belt conveyor's tensioning cylinder with filtered, regulated air and a fine oil mist. The 60 cc drain bowl suits intermittent operation with regular checks.
Run a small test fixture that needs clean air at a set pressure. The gauge lets the operator dial in the exact setting, and the lubricator protects downstream tooling.
Choose the GAFC300N08SK when a 1/4in port suits the flow demand and the line needs both filtration and lubrication. The nylon bowl is a build choice; the catalogue gives no impact or chemical data, so confirm it suits the surroundings. This model ships with both a semi-auto drain, which dumps on pressure drop, and a manual drain for on-demand use. The reverse-flow valve is fitted, shown as a separate symbol in the catalogue. Spare parts are orderable as the GAFR300-08 filter-regulator and the GAL300-08 lubricator, so a worn element does not force a full replacement. With a 1.0 MPa max supply, there is only about 0.1 MPa of headroom above the 0.9 MPa top of the regulated range, so plan the supply pressure accordingly.
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 GAFR300-08 filter-regulator on that branch instead of the full combination.
The GAFC300N08SK works with air only, filtering to 40 um. The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a max pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. The drain bowl holds 60 cc and the oil bowl 98 cc. Use ISO VG 32 lubricant. The unit weighs 1020 g.
The K indicates the reverse-flow (reflux) valve is fitted. This is a factory-installed option that appears as a separate pneumatic symbol in the catalogue. It is part of the ordering code, so the unit arrives with the valve already in place.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.