Airtac GAFC Air Service Unit GAFC50020ASN
The AirTAC Airtac GAFC Air Service Unit GAFC50020ASN 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).
- TypeF.R.L. combination
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainautomatic
- 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 GAFC50020ASN
This GAFC50020ASN is a two-piece F.R.L. combination: a filter-regulator body paired with a lubricator, mounted on a shared T-bracket with quick clamps. The 3/4in port and 1910 g mass place it in the heavy mid-range class, suited for feeding a machine header or a multi-station line rather than a single small actuator.
The filter and regulator share one body, so air is cleaned and set to pressure before the lubricator adds a metered oil mist downstream. It operates at 0.15-0.9 MPa (20-130 psi) with a 40 um element and an automatic drain. The 108 cc condensate bowl and 225 cc oil bowl mean fewer service stops on a busy production line.
Airtac GAFC Air Service Unit GAFC50020ASN Technical Specifications
| Model | Airtac GAFC Air Service Unit GAFC50020ASN |
|---|---|
| Series | GAFC500 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 | PC |
| 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 | 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 GAFC50020ASN
| 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". |
| A | Drain: Automatic 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; 1/4" 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: 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 GAFC50020ASN Is Used
Machine Tool Header
Feed a 3/4in header supplying multiple pneumatic actuators on a CNC machining center, where the 1910 g unit mounts on a frame and the 225 cc oil bowl supports extended shifts.
Assembly Line Lubrication
Lubricate air tools on an automotive assembly line, where the automatic drain handles condensate from wet compressors and the 108 cc bowl reduces maintenance frequency.
Packaging Equipment
Condition air for a multi-station packaging machine with cylinders and grippers, using the 40 um element to protect precision valves and the regulated 0.15-0.9 MPa range for consistent actuation.
Is the Airtac GAFC Air Service Unit GAFC50020ASN the Right Air-Prep Unit?
Choose the GAFC500 for 3/4in piping where the GAFC400's 3/8in and 1/2in ports are too small. The automatic drain clears condensate without an operator, which suits unattended or wet lines. The PC bowl is the standard build; confirm it fits your environment, as the catalogue gives no per-material ratings. No gauge is supplied, so plan to add one at the 1/4in gauge connection if you need to read set pressure. The 40 um element handles general shop air; step up to the 5 um W option for finer filtration. This model uses PT thread with an MPa/psi gauge scale, and the K option adds a reverse-flow valve. Spare parts are the GAFR500-20 filter-regulator and GAL500-20 lubricator, both orderable separately. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan your inlet pressure accordingly.
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 GAFC50020ASN FAQ
This F.R.L. combination operates at 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It works in -5 to 70 C temperatures and requires ISO VG 32 lubricant. The drain bowl holds 108 cc and the oil bowl holds 225 cc, with a total weight of 1910 g.
The N in the code means no gauge is supplied. The GAFC500 has a 1/4in gauge connection where you can add one later. Without a gauge, you cannot read the set pressure directly, so plan to install one if your process requires visible confirmation of the regulated output.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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