Airtac GAFR Adjustable Filter Regulator GAFR50020ASJWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR50020ASJWK 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 GAFR50020ASJWK
The GAFR50020ASJWK is a filter and regulator combined into a single body, eliminating the need for separate components. It spins incoming air to separate liquid water and trap solid particles, then delivers a steady outlet pressure via its balanced regulator mechanism.
This model offers a 3/4in port and a working range of 0.15-0.9 MPa (20-130 psi), with a 5 um element for finer filtration. The 108 cc condensate bowl and 950 g weight define its size class, requiring a proper panel or frame mount rather than support from the tubing.
Airtac GAFR Adjustable Filter Regulator GAFR50020ASJWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR50020ASJWK |
|---|---|
| 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 GAFR50020ASJWK
| 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. |
| 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 GAFR50020ASJWK Is Used
Machine Header Supply
Feed a machine header or multi-station line where a 3/4in port and 108 cc bowl handle moderate condensate loads with the automatic drain.
Precision Valve Protection
Use the 5 um element to protect precision valves and instruments from fine particles, while the balanced regulator holds set pressure as supply varies.
Panel-Mounted Installation
With no bracket included, mount this unit directly to a panel or existing frame, saving rail width compared to separate filter and regulator parts.
Is the Airtac GAFR Adjustable Filter Regulator GAFR50020ASJWK the Right Air-Prep Unit?
Choose the GAFR500 for 3/4in port applications where a 108 cc drain bowl and 8000 L/min flow envelope (at 0.7 MPa inlet) provide ample capacity. The automatic drain (A) suits unattended or wet lines, while the 5 um element (W) traps finer particles for precision equipment. This model omits the mounting bracket (J), so plan for panel mounting or an existing bracket. The fitted circular gauge reads in MPa/psi, matching the PT thread. The reverse-flow valve (K) is attached as an ordering difference. If lubrication is needed downstream, order the matching GAFC500-20 combination instead. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated 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 GAFR50020ASJWK FAQ
Working pressure range is 0.15-0.9 MPa (20-130 psi). Maximum pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi). Temperature range is -5 to 70 C. The drain bowl holds 108 cc and the unit weighs 950 g.
The K indicates a reverse-flow (reflux) valve is fitted. It is an ordering difference shown as a separate pneumatic symbol; the catalogue defers its function to another page not included in our data.
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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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