Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 3/4" ports, a 5 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size3/4"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeNot fitted
- Weight950 g
About the Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW
The GAFR500C20ASNW is a filter and regulator combined into one body, so it cleans incoming air and stabilizes outlet pressure without needing separate units. This model uses a 3/4in port, a 5 um element, and a metal bowl, with a working range of 0.15-0.9 MPa (20-130 psi).
Its diversion structure spins the air to separate liquid water and solid particles into the 108 cc drain bowl, while the balanced regulator holds the set pressure steady as supply varies. Weighing 950 g, this unit is built for fixed installation on a panel or frame, not for support from the tubing alone.
Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW |
|---|---|
| Series | GAFR500 filter & regulator |
| Port size | 3/4" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| 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 |
| Bracket | Included |
| Weight | 950 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAFR500 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW
| GAFR500 | GA500 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. 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). |
| (blank) | Mounting bracket included. |
| 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. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC500-20 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-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 | GAFR500 · 3/4" · curve to 8000 L/min |
|---|---|
| One size down | GAFR400 |
| One size up | GAFR600 (curve to 12000 L/min) |
| Add a lubricator | GAFC500-20 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW Is Used
Machine header supply
Feed a multi-station assembly machine header with clean, regulated air at up to 0.9 MPa, using the 5 um element to protect sensitive valves.
Instrument air prep
Prepare air for precision measurement equipment where fine filtration matters, with the 108 cc bowl reducing how often the automatic drain cycles.
Conveyor control cabinet
Supply a conveyor control cabinet's pneumatic logic with stable pressure, relying on the self-locking knob to resist drift from line vibration.
Is the Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW the Right Air-Prep Unit?
Choose the GAFR500 when you need 3/4in ports and a flow envelope plotted to 8000 L/min at 0.7 MPa inlet; step down to the GAFR400 for 1/2in ports with a 7000 L/min envelope. The metal bowl suits demanding environments, while the automatic drain handles unattended operation. The 5 um element traps finer particles than the standard 40 um, and the included bracket simplifies mounting. This unit has no gauge, so the 1/4in gauge connection is ready if you add one later. If downstream lubrication is needed, order the GAFC500-20 combination instead. Note that the 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 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
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 108 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 950 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC500-20 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR500C20ASNW FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The drain bowl holds 108 cc and the unit weighs 950 g.
The N code means no gauge is supplied. The GAFR500 has a 1/4in gauge connection, so you can add a compatible gauge later to read the set pressure directly.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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