Airtac GAFR Adjustable Filter Regulator GAFR500N20ASJNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR500N20ASJNW 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 materialNylon
- Drainautomatic
- Pressure gaugeNot fitted
- Weight950 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 GAFR Adjustable Filter Regulator GAFR500N20ASJNW
The GAFR500N20ASJNW is a filter and regulator combined into a single body, handling both air preparation duties without needing separate units. This 3/4in version operates in the standard 0.15-0.9 MPa (20-130 psi) range and comes with a 5 um element for finer filtration.
Its nylon bowl and automatic drain make it suitable for wet or unattended lines, while the 950 g weight indicates a unit that needs proper panel mounting. The diversion structure spins incoming air to separate liquid water and solid particles into the 108 cc condensate bowl, keeping downstream equipment protected.
Airtac GAFR Adjustable Filter Regulator GAFR500N20ASJNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR500N20ASJNW |
|---|---|
| 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 | Nylon |
| 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 | Not included (J) |
| 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 GAFR500N20ASJNW
| GAFR500 | GA500 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| N | Bowl material: Nylon. 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| 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 GAFR500N20ASJNW Is Used
Machine header supply
Feed a multi-station assembly machine header where several actuators draw air simultaneously. The 3/4in port and 8000 L/min plotted envelope at 0.7 MPa inlet support moderate multi-drop layouts.
Instrument air pre-filter
Use the 5 um element ahead of precision pneumatic valves or sensors that need cleaner air than standard 40 um filtration provides. The automatic drain keeps the bowl from filling during long production runs.
Panel-mounted process line
Mount this 950 g unit on a machine frame or panel where its weight is properly supported. The no-bracket (J) configuration suits existing mounting holes, and the nylon bowl handles general industrial environments.
Is the Airtac GAFR Adjustable Filter Regulator GAFR500N20ASJNW the Right Air-Prep Unit?
This GAFR500 body with a 3/4in port sits between the GAFR400 (3/8in-1/2in, 100 cc bowl) and the GAFR600 (3/4in-1in, 205 cc bowl) in the range. The nylon bowl offers an alternative to PC or metal, and the automatic drain (A) handles condensate without manual intervention. The J code means no mounting bracket is included, so plan for a panel mount or existing bracket. With no gauge fitted (N), the 1/4in gauge connection is available if you add one later; the PT thread means the scale reads MPa/psi. The 5 um element traps finer particles than the standard 40 um, though it will need more frequent service. For lines needing oil downstream, the matching GAFC500-20 combination adds a lubricator. 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 near 1.0 MPa if you need the full 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
- ✓ 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 GAFR500N20ASJNW FAQ
This filter & regulator has a 3/4in port, working pressure range of 0.15-0.9 MPa (20-130 psi), maximum pressure of 1.0 MPa (145 psi), and proof pressure of 1.5 MPa (215 psi). It operates in -5 to 70 C temperatures, has a 108 cc drain bowl, weighs 950 g, and uses a 5 um element.
The N after the port code means no gauge is supplied, leaving the 1/4in gauge connection available if you add one later. The J code omits the mounting bracket, so this unit is intended for panel mounting or use with existing brackets rather than being supported by its tubing.
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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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