Airtac GAFR Adjustable Filter Regulator GAFR400C15SWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15SWK 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 GAFR400C15SWK
The GAFR400C15SWK is a filter and regulator combined into a single body, handling both air cleaning and pressure control in one compact unit. It has a 1/2in port, a working range of 0.15-0.9 MPa (20-130 psi), and a 5 um element for fine filtration.
This model features a metal bowl and a semi-auto plus manual drain, with the mounting bracket included. Its diversion structure spins the air to separate liquid water and solid particles into the 100 cc drain bowl, while the balanced regulator holds the set pressure steady as supply varies.
Airtac GAFR Adjustable Filter Regulator GAFR400C15SWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15SWK |
|---|---|
| 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 GAFR400C15SWK
| 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. |
| 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 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 GAFR400C15SWK Is Used
Precision machining center
Feed a 1/2in line to a CNC machine's tool clamping system, where the 5 um element protects precision valves from fine abrasive particles.
Assembly line automation
Supply a multi-station assembly fixture with clean, regulated air at up to 0.9 MPa, with the metal bowl standing up to the shop floor environment.
Test bench instrumentation
Provide stable pressure to a pneumatic test rig, where the balanced regulator holds the setpoint as the supply fluctuates and the gauge confirms the output.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15SWK the Right Air-Prep Unit?
Choose this GAFR400 body for a 1/2in line where you need both filtration and regulation in one unit, saving rail space compared to separate filter and regulator parts. The metal bowl suits demanding environments, and the 5 um element traps finer particles than the standard 40 um, though it will need more frequent service. The semi-auto and manual drains give you both automatic condensate release and a manual backup. The included bracket simplifies mounting, and the fitted gauge with MPa/psi scale lets you read the set pressure directly. The reverse-flow valve is fitted as an ordering difference. If you need lubrication downstream, order the matching GAFC400-15 combination instead. With a 1.0 MPa max supply, you have about 0.1 MPa of headroom above the 0.9 MPa top of the regulated 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 GAFR400C15SWK FAQ
The GAFR400C15SWK is a filter and regulator with a 1/2in port, working pressure of 0.15-0.9 MPa (20-130 psi), max pressure of 1.0 MPa (145 psi), and proof pressure of 1.5 MPa (215 psi). It operates in -5 to 70 C temperatures, has a 100 cc drain bowl, and weighs 880 g.
The 5 um element traps much finer particles than the standard 40 um filter, making it suitable for precision valves or instrument air. The trade-off is that the finer element will clog faster and require more frequent replacement, so plan maintenance accordingly.
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Covers non-human-caused product damage.
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