Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW 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 materialPC
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight950 g
About the Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW
The GAFR50020ASJW is a filter and pressure regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles a 3/4in port and delivers a regulated output from 0.15 to 0.9 MPa (20-130 psi), with a 5 um element for finer filtration.
This 950 g unit includes a circular gauge with an MPa/psi scale, and its automatic drain clears condensate without manual intervention. The diversion structure spins incoming air to separate liquid water and solid particles into the 108 cc bowl, keeping downstream components protected.
Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW |
|---|---|
| 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 | 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 |
| Bracket | Not included (J) |
| Weight | 950 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW
| GAFR500 | GA500 series filter & regulator — sets the port range, drain-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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (blank) | Circular pressure gauge fitted. |
| 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 GAFR50020ASJW Is Used
Machine Header Supply
Feed a 3/4in header serving multiple pneumatic actuators on a production machine, with the 5 um element protecting precision valves and the automatic drain reducing maintenance stops.
Instrument Air Feed
Supply cleaner air to gauges or sensors that need finer particle removal, using the 5 um element to keep small orifices clear while the regulator maintains a stable pressure.
Multi-Station Assembly Line
Regulate air for a multi-station assembly line where consistent pressure is critical, with the 108 cc bowl handling condensate from high humidity and the auto drain preventing overflow.
Is the Airtac GAFR Adjustable Filter Regulator GAFR50020ASJW the Right Air-Prep Unit?
Choose this GAFR500 body for a 3/4in port line needing up to 8000 L/min of flow (plotted at 0.7 MPa inlet). The PC bowl suits general-purpose use, while the automatic drain (A) handles unattended operation. This model omits the mounting bracket (J), so plan for panel mounting or an existing bracket. The 5 um element (W) traps finer particles than the standard 40 um, ideal for sensitive valves. The PT thread comes with an MPa/psi gauge scale. If oil is needed downstream, order the matching 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 GAFR50020ASJW FAQ
The GAFR50020ASJW is a filter & regulator with a 3/4in port, working pressure range of 0.15-0.9 MPa (20-130 psi), max 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, and weighs 950 g.
The J code means the mounting bracket is omitted. This suits installations where the unit is panel-mounted or secured to an existing frame. If you need the standard bracket, order the same model without the J suffix.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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