Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW 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 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 GAFR500N20ASW
The GAFR500N20ASW is a filter and regulator combined into a single body, handling both air purification and pressure stabilization in one compact unit. It uses a diversion structure that spins incoming air to separate liquid water and trap solid particles, while the balanced regulator maintains a steady outlet pressure as supply varies.
This model has a 3/4in port, a standard pressure range of 0.15-0.9 MPa (20-130 psi), and a 5 um element for finer filtration. The nylon bowl and automatic drain make it suitable for continuous operation, and the pressed-in self-locking knob resists set-pressure drift from vibration.
Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW |
|---|---|
| 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 | 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 GAFR500N20ASW
| 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). |
| (blank) | Mounting bracket included. |
| (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 GAFR500N20ASW Is Used
Machine Header Feed
Feed a 3/4in machine header supplying multiple pneumatic actuators, where the 5 um element protects precision valves from fine particulate wear.
Multi-Station Conveyor Line
Regulate air for a multi-station conveyor system with several workstations, using the automatic drain to handle condensate in continuous production shifts.
Process Control Cabinet
Supply clean, stable air to a process control cabinet with sensitive instruments, where the balanced regulator holds set pressure as line supply fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW the Right Air-Prep Unit?
Choose the GAFR500 when you need 3/4in porting and a 108 cc condensate bowl, stepping up from the GAFR400's 100 cc bowl for less frequent draining. The nylon bowl offers a build choice without changing the common 1.0 MPa max pressure or -5 to 70 C temperature range. This unit ships with the mounting bracket included, a fitted circular gauge with MPa/psi scale, and a 5 um element that traps finer particles than the standard 40 um, though it will need more frequent service. The automatic drain handles condensate without manual intervention, ideal for wet or unattended lines. If your application requires lubrication downstream, order the matching GAFC500-20 combination instead, as this unit does not add oil. The 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan for a supply near maximum to achieve the highest setpoint.
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 GAFR500N20ASW FAQ
The GAFR500N20ASW operates at 0.15-0.9 MPa (20-130 psi) with a maximum pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). The temperature range is -5 to 70 C, the drain bowl holds 108 cc, and the unit weighs 950 g. It has a 3/4in port, 5 um element, and automatic drain.
The automatic drain (A) expels condensate from the 108 cc bowl without manual intervention, making it suitable for unattended operation or wet air lines. This contrasts with the semi-auto+manual drain on models without the A code, which requires periodic manual draining.
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.
Related AirTAC Air-Preparation Units
Request a Quote for Airtac GAFR Adjustable Filter Regulator GAFR500N20ASW
Send us the quantity, thread type (PT / G / NPT) and destination. We confirm price, stock and lead time — usually within 7-8 hours.