Airtac GAFR Adjustable Filter Regulator GAFR500N20SJWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR500N20SJWK 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
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- 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 GAFR500N20SJWK
The GAFR500N20SJWK is a filter and regulator combined into one body, with no lubricator section. It handles a 3/4in port and delivers a regulated output from 0.15 to 0.9 MPa (20-130 psi) while filtering the air to 5 um. The nylon bowl collects condensate and solids, and the unit weighs 950 g.
A balanced, self-locking regulator keeps the outlet pressure steady as supply varies, and the pressed-in knob resists drift from vibration. The diversion structure spins the incoming air to separate liquid water and trap solid particles before regulation, all within a single housing that saves rail space compared to separate filter and regulator units.
Airtac GAFR Adjustable Filter Regulator GAFR500N20SJWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR500N20SJWK |
|---|---|
| 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 | Semi-auto drain + manual 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 GAFR500N20SJWK
| 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". |
| (blank) | Drain: Semi-auto drain + manual 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 GAFR500N20SJWK Is Used
Machine Header Feed
Supply a 3/4in header feeding multiple pneumatic actuators on a stamping or forming machine, where the 5 um element protects precision valves and the 950 g body mounts to a frame.
Multi-Station Conveyor
Regulate air for a conveyor line with several workstations, using the 108 cc bowl to reduce drain frequency and the semi-auto drain for scheduled maintenance during shift changes.
Instrument Air Feed
Feed a bank of flow controllers or gauges on a packaging line, where the 5 um filtration and stable regulation keep setpoints consistent despite supply fluctuations.
Is the Airtac GAFR Adjustable Filter Regulator GAFR500N20SJWK the Right Air-Prep Unit?
Choose this GAFR500 body for a 3/4in line needing up to 8000 L/min at 0.7 MPa inlet, as plotted on the flow curve. The nylon bowl suits applications where a lighter alternative to metal is preferred, while the 5 um element traps finer particles for sensitive equipment. This model has no mounting bracket, so plan for panel mounting or an existing bracket, and the semi-auto plus manual drain requires periodic attention. The fitted gauge reads in MPa/psi, and the reverse-flow valve is included as an ordering option. For lines needing oil downstream, order the matching GAFC500-20 combination instead. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan the inlet pressure near the maximum for 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 GAFR500N20SJWK FAQ
This filter & regulator has a 3/4in port, a working pressure range of 0.15-0.9 MPa (20-130 psi), a maximum pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C, has a 108 cc drain bowl, and weighs 950 g. The element is 5 um, and the drain is semi-auto plus manual.
The K code indicates a reverse-flow (reflux) valve is fitted. This is an ordering difference from models without the K code, and its function is detailed in the catalogue. This unit also has a nylon bowl and a 5 um element, with no mounting bracket included.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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