Airtac GAFC Air Service Unit GAFC50020LNW
The AirTAC Airtac GAFC Air Service Unit GAFC50020LNW 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 - 0.4 MPa (20 - 58 psi).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.4 MPa (20 - 58 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- 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 GAFC50020LNW
This GAFC50020LNW is a two-piece F.R.L. combination built for a 3/4in line. The first body houses the filter and regulator together, so air is cleaned and set to pressure in one pass before the lubricator adds a metered oil mist downstream. It regulates from 0.15 to 0.4 MPa (20-58 psi) and uses a 5 um element to catch fine particles.
The PC bowl holds 108 cc of condensate, while the separate oil bowl holds 225 cc, and the complete unit weighs 1910 g. With no gauge fitted, the 1/4in gauge connection is left open for a later addition. The lower-pressure range suits applications that never need more than 0.4 MPa, and the semi-auto drain clears water each time pressure drops.
Airtac GAFC Air Service Unit GAFC50020LNW Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC50020LNW |
|---|---|
| Series | GAFC500 F.R.L. combination |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.4 MPa (20 - 58 psi) |
| Type | Lower pressure |
| 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. No gauge is supplied with this model — the gauge connection on a GAFC500 is 1/4" if you add one.
Model Code: Airtac GAFC Air Service Unit GAFC50020LNW
| 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. |
| L | Lower pressure type — 0.15 - 0.4 MPa (20 - 58 psi). This body offers Standard (S) or Lower pressure (L). |
| N | No pressure gauge; 1/4" gauge connection. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
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 GAFC50020LNW Is Used
Precision machining centers
Feed a 5 um filtered, regulated air supply to tool changers and spindle air curtains on CNC machining centers, where fine filtration protects sensitive valves.
Assembly line automation
Power multi-station assembly fixtures with a 3/4in header, providing consistent lower-pressure air to pneumatic actuators and pick-and-place units.
Packaging equipment
Supply lubricated air to case packers and palletizers, where the 225 cc oil bowl supports extended operation between refills.
Is the Airtac GAFC Air Service Unit GAFC50020LNW the Right Air-Prep Unit?
Choose the GAFC500 for a 3/4in port with a 7000 L/min flow envelope plotted at 0.7 MPa inlet, stepping up from the GAFC400's 6000 L/min curve. The L type caps regulation at 0.4 MPa, so if your machine may require more pressure, select the standard S version instead. The PC bowl is the default build, and the 5 um element filters finer than the standard 40 um grade, though it will need more frequent service. The semi-auto drain operates on pressure drops, with a manual override for on-demand draining, and the PT thread suits standard pipe fittings. Since no gauge is supplied, plan to add one at the 1/4in connection to monitor the setpoint. The filter-regulator and lubricator are orderable separately as GAFR500-20 and GAL500-20. The 1.0 MPa max supply leaves about 0.6 MPa above the 0.4 MPa top of the range.
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 GAFC50020LNW FAQ
This unit operates from 0.15 to 0.4 MPa (20-58 psi) with a maximum pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). It works in temperatures from -5 to 70 C, uses ISO VG 32 oil, has a 108 cc drain bowl and a 225 cc oil bowl, and weighs 1910 g.
The N in the code after the port indicates no gauge is supplied. The GAFC500 body has a 1/4in gauge connection, so you can add a pressure gauge there if you need to read the set pressure directly.
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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.
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Most inquiries answered within 7-8 hours.
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