Airtac GAFR Adjustable Filter Regulator GAFR50020ASWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR50020ASWK 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 GAFR50020ASWK
The GAFR50020ASWK is a filter and regulator combined into a single body, so it cleans incoming air and stabilizes outlet pressure without needing separate units. It handles a 3/4in port and delivers a standard pressure range of 0.15-0.9 MPa (20-130 psi) while filtering down to 5 um with its fine element.
This 950 g unit is built for a machine header or multi-station line, and its automatic drain clears condensate without manual attention. The 108 cc drain bowl sets the service rhythm, and the included mounting bracket keeps the heavy body firmly anchored to a frame or panel.
Airtac GAFR Adjustable Filter Regulator GAFR50020ASWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR50020ASWK |
|---|---|
| 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 | Included |
| 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 GAFR50020ASWK
| 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). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFR50020ASWK Is Used
Machine header supply
Feed a multi-station assembly machine with clean, regulated air at 3/4in port size, using the 5 um element to protect precision pneumatic valves.
Conveyor line control
Regulate air for a long conveyor system with multiple actuators, relying on the automatic drain to handle condensate in a humid plant.
Instrument air feed
Supply a panel of sensitive instruments or gauges, where the fine 5 um element removes particles that could clog small orifices.
Is the Airtac GAFR Adjustable Filter Regulator GAFR50020ASWK the Right Air-Prep Unit?
Choose the GAFR500 body when your line needs 3/4in ports and a flow envelope plotted to 8000 L/min at 0.7 MPa inlet; step up to the GAFR600 for a 1in port and a 12000 L/min envelope if you need more capacity. The PC bowl suits general shop air, while the 5 um element traps finer particles for sensitive valves or instruments. The automatic drain (A) handles wet or unattended lines, the standard type (S) covers 0.15-0.9 MPa, and the included bracket simplifies mounting. The fitted gauge reads in MPa/psi, and the reverse-flow valve (K) is present as an ordering option. If your line needs oil downstream, order the matching GAFC500-20 combination instead. Max supply 1.0 MPa 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 GAFR50020ASWK FAQ
It is a filter and regulator with a 3/4in port, working pressure 0.15-0.9 MPa (20-130 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C, 108 cc drain bowl, and 950 g weight. It has a 5 um element and an automatic drain.
The K indicates a reverse-flow (reflux) valve is fitted to the unit. It is an ordering difference from models without K; the catalogue does not detail its operation, so treat it as a specific option for your application.
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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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Most inquiries answered within 7-8 hours.
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