Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW 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 1/2" 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 size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW
The GAFR40015ASNW is a filter and regulator combined into a single body, eliminating the need for separate units. It handles 1/2in ports and delivers a standard pressure range of 0.15-0.9 MPa (20-130 psi), with a 5 um filter element for finer particle removal. The automatic drain (A) clears condensate without manual intervention, and the 100 cc bowl holds a substantial amount of liquid. This 880 g unit comes with a mounting bracket included, ready for panel or frame installation.
Its diversion structure spins incoming air to separate liquid water and solid particles, depositing them in the bowl. The balanced, self-locking regulator maintains a steady outlet pressure as supply varies, resisting drift from vibration. With no gauge fitted (N), the 1/4in gauge connection is available for adding one if needed. This is a single, compact unit that simplifies installation and reduces potential leak points compared to separate filter and regulator components.
Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (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 | 100 cc |
| Bracket | Included |
| Weight | 880 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. No gauge is supplied with this model — the gauge connection on a GAFR400 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW
| GAFR400 | GA400 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). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| 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. |
| N | No pressure gauge; 1/4" gauge connection. |
| 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 GAFC400-15 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 | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW Is Used
Precision Valve Control
Feed a bank of precision pneumatic valves on an assembly machine with the 5 um element, ensuring fine particles don't affect their operation. The steady regulated pressure from the balanced mechanism supports consistent cycle times.
Multi-Station Assembly Line
Supply a manifold feeding several actuators on a mid-sized assembly station. The 1/2in port and 100 cc drain bowl handle moderate condensate loads, while the automatic drain keeps the line running without manual checks.
Machine Tool Coolant System
Protect pneumatic controls on a CNC machine or lathe from water and particulates in the air supply. The 880 g unit with included bracket mounts securely to the machine frame, and the 5 um element guards sensitive components.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW the Right Air-Prep Unit?
Choose this GAFR400 body for 1/2in port applications requiring a flow envelope plotted to 7000 L/min at 0.7 MPa inlet. It sits between the smaller GAFR300 (3500 L/min envelope) and the larger GAFR500 (8000 L/min envelope), offering a mid-range capacity for multi-actuator systems. The PC bowl is standard, with metal (C) or nylon (N) options available for different build preferences. The automatic drain (A) suits unattended operation or wet lines, while the standard type (S) covers the 0.15-0.9 MPa range. This model includes the mounting bracket and omits the gauge (N), with a 1/4in connection for retrofitting one. The 5 um element (W) provides finer filtration than the standard 40 um, ideal for precision valves. If downstream lubrication is needed, order the matching GAFC400-15 combination instead. Note that 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 1.0 MPa to achieve maximum set pressure.
Quick checklist
- ✓ Body size for your peak flow (1/2" 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 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 880 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 GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40015ASNW FAQ
The GAFR40015ASNW is a filter & regulator with a 1/2in port, working pressure range of 0.15-0.9 MPa (20-130 psi), and a maximum pressure of 1.0 MPa (145 psi). Its proof pressure is 1.5 MPa (215 psi), and it operates in temperatures from -5 to 70 C. The unit has a 100 cc drain bowl and weighs 880 g, with a 5 um filter element and automatic drain.
The 'N' after the port code means no gauge is supplied with this unit. The GAFR400 has a 1/4in gauge connection, so you can add a compatible pressure gauge later if you need to read the outlet pressure. The set pressure cannot be visually monitored without adding one.
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