Airtac GAFR Adjustable Filter Regulator GAFR400C15SW
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15SW 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 materialMetal
- Drainsemi-auto + manual
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15SW
The GAFR400C15SW is a filter and regulator combined into a single body, so it cleans incoming air and stabilizes outlet pressure without needing separate components. This 1/2in version handles a standard 0.15-0.9 MPa (20-130 psi) range and uses a 5 um element to catch fine particles.
The metal bowl holds 100 cc of condensate, and the unit weighs 880 g, placing it in the mid-size class for shop-floor air preparation. Its diversion structure spins the air to separate liquid water and solid debris, while the balanced regulator keeps the set pressure steady as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR400C15SW Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15SW |
|---|---|
| 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 | Metal |
| 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 | 100 cc |
| Bracket | Included |
| Weight | 880 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 GAFR400C15SW
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| (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). |
| (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 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 GAFR400C15SW Is Used
Precision valve control
Feed a bank of precision pneumatic valves that need clean, regulated air at a steady 0.15-0.9 MPa. The 5 um element traps fine particles that could clog small orifices.
Machine tool air supply
Supply a CNC machine's clamping fixtures and tool-changing mechanisms with filtered, regulated air. The 100 cc metal bowl handles condensate from a busy production line.
Test bench setup
Build a test bench for actuators or valves that requires a reliable air source. The 1/2in port and included bracket make it easy to integrate into a panel.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15SW the Right Air-Prep Unit?
Choose the GAFR400 when you need a 1/2in port with a 100 cc metal bowl and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet. The metal bowl suits demanding environments, and the included bracket simplifies mounting. This unit comes with a semi-auto drain plus manual drain, a fitted circular gauge with MPa/psi scale, and a 5 um element for finer filtration. If you need a lower pressure range, select the L type; if you need automatic draining, add the A code. For lines requiring lubrication downstream, order the matching GAFC400-15 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 (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 GAFR400C15SW FAQ
The GAFR400C15SW is a filter and regulator with a 1/2in 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 100 cc metal drain bowl, and weighs 880 g. The unit includes a 5 um element and a semi-auto plus manual drain.
The 'C' in the code GAFR400C15SW specifies a metal bowl. The common specification for all bowl materials is the same: a maximum pressure of 1.0 MPa and a temperature range of -5 to 70 C. The metal bowl is a build choice for environments where a more robust housing is preferred; confirm compatibility for aggressive surroundings.
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