Airtac GAFC Air Service Unit GAFC50020SWK
The AirTAC Airtac GAFC Air Service Unit GAFC50020SWK 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).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight1910 g
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAFC Air Service Unit GAFC50020SWK
The GAFC50020SWK is a two-piece F.R.L. combination built around a 3/4in port. A filter and regulator share one body, so the air is cleaned and set to pressure before it reaches the lubricator, which adds a controlled oil mist last. It weighs 1910 g and carries a 5 um element for finer filtration.
The standard pressure range is 0.15-0.9 MPa (20-130 psi), with a 108 cc condensate bowl and a 225 cc oil bowl. The semi-auto drain dumps condensate when pressure drops, while the manual drain offers on-demand control. A circular gauge with an MPa/psi scale is fitted, and the reverse-flow (reflux) valve is included.
Airtac GAFC Air Service Unit GAFC50020SWK Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC50020SWK |
|---|---|
| Series | GAFC500 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 | PC |
| 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 | 108 cc |
| Capacity of oil bowl | 225 cc |
| Recommended lubricant | ISO VG 32 or equivalent |
| Weight | 1910 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.
Model Code: Airtac GAFC Air Service Unit GAFC50020SWK
| GAFC500 | GA500 series F.R.L. unit — sets ports, bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| (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. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
Constituent units, orderable separately as spares: GAFR500-20 filter & regulator, GAL500-20 lubricator — both share this body and port. A GAFC has two units, not three: the filter and the regulator are one body.
Size Class & Flow Envelope
- GAFC2001/8"-1/4" · 1750 L/min
- GAFC3001/4"-1/2" · 3500 L/min
- GAFC4003/8"-1/2" · 6000 L/min
- GAFC5003/4" · 7000 L/min
- GAFC6003/4"-1" · 12000 L/min
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 | GAFC500 · 3/4" · curve to 7000 L/min |
|---|---|
| One size down | GAFC400 |
| One size up | GAFC600 (curve to 12000 L/min) |
| Build order | Filter & regulator → bracket → lubricator |
Where the Airtac GAFC Air Service Unit GAFC50020SWK Is Used
Machine Tool Lubrication
Feed a 3/4in line to a CNC lathe's tool changer, providing filtered, regulated air with a metered oil mist for pneumatic actuators and slides.
Assembly Line Air Prep
Supply a multi-station assembly conveyor where consistent pressure and lubrication are needed for multiple cylinders and grippers along the line.
Hydraulic Press Pilot Air
Provide clean, regulated pilot air to a hydraulic press's solenoid valves, with the 5 um element protecting precision valve internals from fine particles.
Is the Airtac GAFC Air Service Unit GAFC50020SWK the Right Air-Prep Unit?
Choose the GAFC50020SWK when you need a 3/4in port with a 5 um element and a reverse-flow valve. The PC bowl suits standard shop air, and the semi-auto plus manual drain gives you both automatic and manual condensate control. The gauge reads in MPa/psi, matching the PT thread. If you need oil-free air downstream, select a plain GAFR filter-regulator instead of this lubricator-equipped set. Spare parts are orderable as GAFR500-20 and GAL500-20. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan for a supply near 1.0 MPa if you need the full regulated output.
Quick checklist
- ✓ Body size for your peak flow (3/4" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Thread & gauge scale (PT / G / NPT)
Installation & Maintenance Notes
- check Install with the airflow arrow: filter-regulator first, lubricator last.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Fill the oil bowl with ISO VG 32 or equivalent only.
- check Drain condensate before the 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 1910 g unit on its bracket, not on the tubing.
The lubricator adds an oil mist downstream of the regulator. If any part of the line must stay oil-free, use a plain GAFR500-20 filter-regulator on that branch instead of the full combination.
Airtac GAFC Air Service Unit GAFC50020SWK FAQ
The GAFC50020SWK operates at 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 has a 108 cc drain bowl and a 225 cc oil bowl, weighs 1910 g, and is rated for -5 to 70 C. Use ISO VG 32 oil in the lubricator.
The K indicates a reverse-flow (reflux) valve is fitted. This is an ordering difference shown as a separate pneumatic symbol in the catalogue. The unit also includes a 5 um element and a circular gauge with an MPa/psi scale.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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