
The AirTAC Airtac GAFC Air Service Unit GAFC300N15SN 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 - 0.9 MPa (20 - 130 psi).
The GAFC300N15SN is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator, mounted on a T-bracket with quick clamps. With a 1/2" port and 1020 g mass, it suits medium-duty machine headers where a single air prep point feeds several actuators. The nylon bowl is specified here, and the set carries a 40 um element.
Air enters the first body where solids and moisture are filtered out and pressure is set to 0.15-0.9 MPa (20-130 psi), then the lubricator adds a metered oil mist downstream. The 60 cc condensate bowl and 98 cc oil bowl define the service interval, and with no gauge fitted the 1/8" gauge connection is left for a later addition. Max supply is 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), rated for -5 to 70 C.
| Model | Airtac GAFC Air Service Unit GAFC300N15SN |
|---|---|
| Series | GAFC300 F.R.L. combination |
| Port size | 1/2" (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. No gauge is supplied with this model — the gauge connection on a GAFC300 is 1/8" if you add one.
| 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). |
| 15 | Port size 1/2". 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). |
| N | No pressure gauge; 1/8" 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: GAFR300-15 filter & regulator, GAL300-15 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 | GAFC300 · 1/2" · 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 bank of solenoid valves on a CNC lathe's coolant system, where the 1/2" port delivers enough volume for rapid actuation and the 60 cc bowl handles condensate from a humid compressor.
Supply a multi-operator assembly bench with filtered, regulated air for pneumatic screwdrivers and press tools, keeping the oil mist downstream of the regulator so the pressure setting stays stable.
Run a group of 32 mm bore cylinders on a carton erector, where the 98 cc oil bowl reduces refill frequency and the semi-auto drain clears water each time the line stops.
Choose the GAFC300N15SN when a 1/2" port and the 0.15-0.9 MPa (20-130 psi) standard range fit the duty. The nylon bowl is a material choice, not a performance upgrade, so confirm it suits your environment. The semi-auto drain dumps condensate on pressure drop while the manual drain gives on-demand control. With no gauge supplied, plan to add one at the 1/8" connection if the set pressure must be read locally. The 40 um element handles general shop air; step to the 5 um W option for finer filtration. PT threads with an MPa/psi gauge scale are standard. Spares are orderable as GAFR300-15 and GAL300-15. The catalogue flow curve for this body is plotted to 3500 L/min at 0.7 MPa inlet, useful for relative sizing. 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the 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 GAFR300-15 filter-regulator on that branch instead of the full combination.
This F.R.L. combination operates at 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). Temperature range is -5 to 70 C. The drain bowl holds 60 cc and the oil bowl 98 cc. Recommended lubricant is ISO VG 32. The unit weighs 1020 g and has a 1/2" port.
The N after the port code means no gauge is supplied. The gauge connection on the GAFC300 body is 1/8", so you can add a compatible gauge later if you need to read the set pressure locally. The PT thread uses an MPa/psi scale on standard AirTAC gauges.
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